Release v1.2.2

Merge pull request #71 from SCENEE/fix-bugs
Fix scroll tracking bugs
2018-12-03 09:25:09 +09:00 · 2018-12-01 15:45:41 +09:00 · 2018-12-01 12:36:47 +09:00 · 2018-12-01 11:08:33 +09:00 · 2018-11-29 13:06:27 +09:00 · 2018-11-26 13:20:24 +09:00
18 changed files with 1859 additions and 363 deletions
@@ -0,0 +1,44 @@
+language: swift
+branches:
+  only:
+    - master
+cache:
+  directories:
+  - build
+  - vendor
+  - /usr/local/Homebrew
+  - $HOME/Library/Caches/Homebrew
+env:
+  global:
+  - LANG=en_US.UTF-8
+  - LC_ALL=en_US.UTF-8
+skip_cleanup: true
+jobs:
+  include:
+  - stage: carthage
+    osx_image: xcode10
+    before_install:
+    - brew update
+    - brew outdated carthage || brew upgrade carthage
+    script:
+    - carthage build --no-skip-current
+
+  - stage: podspec
+    osx_image: xcode10
+    script:
+    - pod spec lint
+
+  - stage: check Maps example
+    osx_image: xcode10
+    script:
+    - xcodebuild -scheme Maps -sdk iphonesimulator clean build
+
+  - stage: check Stocks example
+    osx_image: xcode10
+    script:
+    - xcodebuild -scheme Stocks -sdk iphonesimulator clean build
+
+  - stage: check Samples example
+    osx_image: xcode10
+    script:
+    - xcodebuild -scheme Samples -sdk iphonesimulator clean build
@@ -60,9 +60,9 @@
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <subviews>
                            <visualEffectView opaque="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Ye3-uU-bq3">
-                                <rect key="frame" x="0.0" y="0.0" width="375" height="778"/>
+                                <rect key="frame" x="0.0" y="0.0" width="375" height="900"/>
                                <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" insetsLayoutMarginsFromSafeArea="NO" id="ED1-gT-FBj">
-                                    <rect key="frame" x="0.0" y="0.0" width="375" height="778"/>
+                                    <rect key="frame" x="0.0" y="0.0" width="375" height="900"/>
                                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                    <subviews>
                                        <searchBar contentMode="redraw" searchBarStyle="minimal" translatesAutoresizingMaskIntoConstraints="NO" id="Zcj-SE-gb8">
@@ -70,7 +70,7 @@
                                            <textInputTraits key="textInputTraits"/>
                                        </searchBar>
                                        <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" showsHorizontalScrollIndicator="NO" showsVerticalScrollIndicator="NO" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="D7r-re-InH">
-                                            <rect key="frame" x="0.0" y="66" width="375" height="712"/>
+                                            <rect key="frame" x="0.0" y="66" width="375" height="748"/>
                                            <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                            <view key="tableHeaderView" contentMode="scaleToFill" id="u28-LY-hIh" customClass="SearchHeaderView" customModule="Maps" customModuleProvider="target">
                                                <rect key="frame" x="0.0" y="0.0" width="375" height="116"/>
@@ -227,7 +227,7 @@
                                        <constraint firstAttribute="trailing" secondItem="D7r-re-InH" secondAttribute="trailing" id="BES-GA-Btp"/>
                                        <constraint firstItem="D7r-re-InH" firstAttribute="leading" secondItem="ED1-gT-FBj" secondAttribute="leading" id="UTe-YL-17h"/>
                                        <constraint firstItem="Zcj-SE-gb8" firstAttribute="top" secondItem="ED1-gT-FBj" secondAttribute="top" constant="6" id="apU-Pd-PEO"/>
-                                        <constraint firstAttribute="bottom" secondItem="D7r-re-InH" secondAttribute="bottom" id="vfS-Lx-TXz"/>
+                                        <constraint firstAttribute="bottom" secondItem="D7r-re-InH" secondAttribute="bottom" constant="86" id="vfS-Lx-TXz"/>
                                        <constraint firstItem="D7r-re-InH" firstAttribute="top" secondItem="Zcj-SE-gb8" secondAttribute="bottom" constant="4" id="vro-cd-B9c"/>
                                        <constraint firstItem="Zcj-SE-gb8" firstAttribute="leading" secondItem="ED1-gT-FBj" secondAttribute="leading" id="wMb-L2-Z0W"/>
                                    </constraints>
@@ -238,7 +238,7 @@
                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                        <constraints>
                            <constraint firstItem="Ye3-uU-bq3" firstAttribute="leading" secondItem="G74-X7-Za8" secondAttribute="leading" id="Kr2-sU-ZWZ"/>
-                            <constraint firstItem="Ye3-uU-bq3" firstAttribute="bottom" secondItem="G74-X7-Za8" secondAttribute="bottom" id="aWM-s3-3o4"/>
+                            <constraint firstItem="Ye3-uU-bq3" firstAttribute="bottom" secondItem="Ncl-E9-yRn" secondAttribute="bottom" constant="88" id="aWM-s3-3o4"/>
                            <constraint firstItem="Ye3-uU-bq3" firstAttribute="trailing" secondItem="G74-X7-Za8" secondAttribute="trailing" id="fEL-8y-Acc"/>
                            <constraint firstItem="Ye3-uU-bq3" firstAttribute="top" secondItem="Ncl-E9-yRn" secondAttribute="top" id="w77-ba-FrJ"/>
                        </constraints>
@@ -247,6 +247,7 @@
                    <connections>
                        <outlet property="searchBar" destination="Zcj-SE-gb8" id="BH7-Gy-RG5"/>
                        <outlet property="tableView" destination="D7r-re-InH" id="nRN-fY-b8j"/>
+                        <outlet property="visualEffectView" destination="Ye3-uU-bq3" id="rS6-Mq-OKs"/>
                    </connections>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="EqR-Hp-zhc" userLabel="First Responder" sceneMemberID="firstResponder"/>
@@ -26,8 +26,8 @@ class ViewController: UIViewController, MKMapViewDelegate, UISearchBarDelegate,

        searchVC = storyboard?.instantiateViewController(withIdentifier: "SearchPanel") as? SearchPanelViewController

-        // Add a content view controller
-        fpc.show(searchVC, sender: self)
+        // Set a content view controller
+        fpc.set(contentViewController: searchVC)
        fpc.track(scrollView: searchVC.tableView)

        setupMapView()
@@ -84,15 +84,16 @@ class ViewController: UIViewController, MKMapViewDelegate, UISearchBarDelegate,
    // MARK: FloatingPanelControllerDelegate
    
    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
-        switch traitCollection.verticalSizeClass {
+        switch newCollection.verticalSizeClass {
        case .compact:
            fpc.surfaceView.borderWidth = 1.0 / traitCollection.displayScale
            fpc.surfaceView.borderColor = UIColor.black.withAlphaComponent(0.2)
+            return SearchPanelLandscapeLayout()
        default:
            fpc.surfaceView.borderWidth = 0.0
            fpc.surfaceView.borderColor = nil
+            return nil
        }
-        return nil
    }

    func floatingPanelDidMove(_ vc: FloatingPanelController) {
@@ -133,7 +134,8 @@ class SearchPanelViewController: UIViewController, UITableViewDataSource, UITabl

    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var searchBar: UISearchBar!
-
+    @IBOutlet weak var visualEffectView: UIVisualEffectView!
+    
    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.dataSource = self
@@ -143,6 +145,15 @@ class SearchPanelViewController: UIViewController, UITableViewDataSource, UITabl
        textField.font = UIFont(name: textField.font!.fontName, size: 15.0)

        hideHeader()
+
+    }
+
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        if #available(iOS 10, *) {
+            visualEffectView.layer.cornerRadius = 9.0
+            visualEffectView.clipsToBounds = true
+        }
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
@@ -193,6 +204,42 @@ class SearchPanelViewController: UIViewController, UITableViewDataSource, UITabl
    }
 }

+public class SearchPanelLandscapeLayout: FloatingPanelLayout {
+    public var initialPosition: FloatingPanelPosition {
+        return .tip
+    }
+    
+    public var supportedPositions: Set<FloatingPanelPosition> {
+        return [.full, .tip]
+    }
+
+    public func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return 16.0
+        case .tip: return 69.0
+        default: return nil
+        }
+    }
+
+    public func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
+        if #available(iOS 11.0, *) {
+            return [
+                surfaceView.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor, constant: 8.0),
+                surfaceView.widthAnchor.constraint(equalToConstant: 291),
+            ]
+        } else {
+            return [
+                surfaceView.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 8.0),
+                surfaceView.widthAnchor.constraint(equalToConstant: 291),
+            ]
+        }
+    }
+
+    public func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat {
+        return 0.0
+    }
+}
+
 class SearchCell: UITableViewCell {
    @IBOutlet weak var iconImageView: UIImageView!
    @IBOutlet weak var titleLabel: UILabel!
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.18" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="RoN-h0-uBD">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="RoN-h0-uBD">
    <device id="retina4_7" orientation="portrait">
        <adaptation id="fullscreen"/>
    </device>
    <dependencies>
        <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
@@ -70,13 +70,106 @@
                    <navigationItem key="navigationItem" title="Samples" id="wCF-su-7up"/>
                    <connections>
                        <outlet property="tableView" destination="7IS-PU-x0P" id="YFM-9W-eP4"/>
-                        <segue destination="bYI-y3-Rzb" kind="presentation" identifier="GoToTextView" id="6Ym-J6-Q6X"/>
                    </connections>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="eP2-DG-flv" userLabel="First Responder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="57" y="27"/>
        </scene>
+        <!--Item 2-->
+        <scene sceneID="lRc-OZ-sL4">
+            <objects>
+                <viewController id="RpE-lI-27a" customClass="TabBarContentViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="JER-jz-KSq">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Item 2" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="AiP-dx-mFn">
+                                <rect key="frame" x="163.5" y="323" width="48" height="21"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="IvG-yp-yzI">
+                                <rect key="frame" x="20" y="20" width="39" height="30"/>
+                                <state key="normal" title="Close"/>
+                                <connections>
+                                    <action selector="closeWithSender:" destination="RpE-lI-27a" eventType="touchUpInside" id="hj3-Xv-6Gq"/>
+                                    <action selector="closeWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="rg4-OH-Ojn"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="IvG-yp-yzI" firstAttribute="top" secondItem="2Cd-km-qEk" secondAttribute="top" id="18k-sV-PgT"/>
+                            <constraint firstItem="AiP-dx-mFn" firstAttribute="centerY" secondItem="JER-jz-KSq" secondAttribute="centerY" id="NUc-tM-0dN"/>
+                            <constraint firstItem="AiP-dx-mFn" firstAttribute="centerX" secondItem="JER-jz-KSq" secondAttribute="centerX" id="hwP-mu-Vmz"/>
+                            <constraint firstItem="IvG-yp-yzI" firstAttribute="leading" secondItem="2Cd-km-qEk" secondAttribute="leading" constant="20" id="pYt-jE-CTF"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="2Cd-km-qEk"/>
+                    </view>
+                    <tabBarItem key="tabBarItem" tag="1" title="Item 2" id="qb3-RB-B28"/>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="NhZ-u5-Beh" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="326" y="1575"/>
+        </scene>
+        <!--Item 1-->
+        <scene sceneID="m6X-j6-yBM">
+            <objects>
+                <viewController id="lto-Zc-Vtp" customClass="TabBarContentViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="ji9-Ez-N7i">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Item 1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="uoW-c8-9wx">
+                                <rect key="frame" x="164.5" y="323" width="46" height="21"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="eFN-tN-4Ct">
+                                <rect key="frame" x="20" y="20" width="39" height="30"/>
+                                <state key="normal" title="Close"/>
+                                <connections>
+                                    <action selector="closeWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="YL4-GP-ZEZ"/>
+                                    <action selector="closeWithSender:" destination="lto-Zc-Vtp" eventType="touchUpInside" id="llo-9x-fQv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="eFN-tN-4Ct" firstAttribute="leading" secondItem="f88-U8-Vja" secondAttribute="leading" constant="20" id="5BT-yZ-EKe"/>
+                            <constraint firstItem="uoW-c8-9wx" firstAttribute="centerY" secondItem="ji9-Ez-N7i" secondAttribute="centerY" id="Nyw-Wt-78z"/>
+                            <constraint firstItem="eFN-tN-4Ct" firstAttribute="top" secondItem="f88-U8-Vja" secondAttribute="top" id="hUV-3a-XkY"/>
+                            <constraint firstItem="uoW-c8-9wx" firstAttribute="centerX" secondItem="ji9-Ez-N7i" secondAttribute="centerX" id="wDv-OH-7PX"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="f88-U8-Vja"/>
+                    </view>
+                    <tabBarItem key="tabBarItem" title="Item 1" id="HEV-kf-jxH"/>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="bkL-bc-hZC" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-380" y="1576"/>
+        </scene>
+        <!--Tab Bar View Controller-->
+        <scene sceneID="nQ5-PV-qFw">
+            <objects>
+                <tabBarController storyboardIdentifier="TabBarViewController" id="c7K-XJ-TlT" customClass="TabBarViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <tabBar key="tabBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="BPL-Dp-5pJ">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="49"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                    </tabBar>
+                    <connections>
+                        <segue destination="lto-Zc-Vtp" kind="relationship" relationship="viewControllers" id="6hP-AH-YiH"/>
+                        <segue destination="RpE-lI-27a" kind="relationship" relationship="viewControllers" id="g6X-Sq-uSW"/>
+                    </connections>
+                </tabBarController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="Z9x-EI-p2b" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-183" y="806"/>
+        </scene>
        <!--Modal View Controller-->
        <scene sceneID="C9P-Ns-Qrq">
            <objects>
@@ -96,14 +189,49 @@
                                    <action selector="closeWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="MSC-ch-YJK"/>
                                </connections>
                            </button>
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" alignment="top" spacing="44" translatesAutoresizingMaskIntoConstraints="NO" id="9p4-06-y2T">
+                                <rect key="frame" x="139.5" y="108" width="96" height="252"/>
+                                <subviews>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="i9x-x5-n1q">
+                                        <rect key="frame" x="0.0" y="0.0" width="80" height="30"/>
+                                        <state key="normal" title="Move to full"/>
+                                        <connections>
+                                            <action selector="moveToFullWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="TDe-3J-gIR"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="2u5-cH-RAN">
+                                        <rect key="frame" x="0.0" y="74" width="85" height="30"/>
+                                        <state key="normal" title="Move to half"/>
+                                        <connections>
+                                            <action selector="moveToHalfWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="12s-o7-Et5"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="M4A-iO-RIE">
+                                        <rect key="frame" x="0.0" y="148" width="77" height="30"/>
+                                        <state key="normal" title="Move to tip"/>
+                                        <connections>
+                                            <action selector="moveToTipWithSender:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="BmL-91-9ai"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="szf-HE-QTk">
+                                        <rect key="frame" x="0.0" y="222" width="96" height="30"/>
+                                        <state key="normal" title="Update layout"/>
+                                        <connections>
+                                            <action selector="updateLayout:" destination="bYI-y3-Rzb" eventType="touchUpInside" id="Woz-a7-YMJ"/>
+                                        </connections>
+                                    </button>
+                                </subviews>
+                            </stackView>
                        </subviews>
                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                        <constraints>
                            <constraint firstItem="sbF-Az-7sy" firstAttribute="top" secondItem="GBa-yx-8to" secondAttribute="top" id="3VR-hj-zeQ"/>
+                            <constraint firstItem="9p4-06-y2T" firstAttribute="top" secondItem="GBa-yx-8to" secondAttribute="top" constant="88" id="41n-Fn-hi3"/>
                            <constraint firstAttribute="bottom" secondItem="vut-mK-Y4t" secondAttribute="bottom" id="6eq-Kt-heZ"/>
                            <constraint firstItem="sbF-Az-7sy" firstAttribute="leading" secondItem="GBa-yx-8to" secondAttribute="leading" constant="20" id="T2G-1L-PRs"/>
                            <constraint firstItem="vut-mK-Y4t" firstAttribute="leading" secondItem="qwo-GK-p1U" secondAttribute="leading" id="gVC-jv-VJX"/>
                            <constraint firstItem="vut-mK-Y4t" firstAttribute="trailing" secondItem="GBa-yx-8to" secondAttribute="trailing" id="jkq-p2-lUm"/>
+                            <constraint firstItem="9p4-06-y2T" firstAttribute="centerX" secondItem="qwo-GK-p1U" secondAttribute="centerX" id="l8t-p3-ETf"/>
                            <constraint firstItem="vut-mK-Y4t" firstAttribute="top" secondItem="GBa-yx-8to" secondAttribute="bottom" id="rMy-JT-t4B"/>
                        </constraints>
                        <viewLayoutGuide key="safeArea" id="GBa-yx-8to"/>
@@ -114,7 +242,128 @@
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="fbi-LZ-M4Y" userLabel="First Responder" sceneMemberID="firstResponder"/>
            </objects>
-            <point key="canvasLocation" x="57" y="-758"/>
+            <point key="canvasLocation" x="561" y="806"/>
+        </scene>
+        <!--Nested Scroll View Controller-->
+        <scene sceneID="TfC-A3-4R0">
+            <objects>
+                <viewController storyboardIdentifier="NestedScrollViewController" id="LAe-jm-k6f" customClass="NestedScrollViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="414-Wy-0t1">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="sBe-tN-uMi">
+                                <rect key="frame" x="0.0" y="32" width="375" height="635"/>
+                                <subviews>
+                                    <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="lFR-Sp-Sj1">
+                                        <rect key="frame" x="0.0" y="0.0" width="375" height="968"/>
+                                        <subviews>
+                                            <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" alwaysBounceHorizontal="YES" pagingEnabled="YES" showsVerticalScrollIndicator="NO" bouncesZoom="NO" translatesAutoresizingMaskIntoConstraints="NO" id="xba-kG-VQ2">
+                                                <rect key="frame" x="0.0" y="0.0" width="375" height="242"/>
+                                                <subviews>
+                                                    <stackView opaque="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="WRe-tD-KTb">
+                                                        <rect key="frame" x="0.0" y="0.0" width="1125" height="242"/>
+                                                        <subviews>
+                                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="WuE-iq-0GW">
+                                                                <rect key="frame" x="0.0" y="0.0" width="375" height="242"/>
+                                                                <color key="backgroundColor" red="1" green="0.57810515169999999" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                            </view>
+                                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="w5Y-44-79g">
+                                                                <rect key="frame" x="375" y="0.0" width="375" height="242"/>
+                                                                <color key="backgroundColor" red="0.0078431372550000003" green="0.72156862749999995" blue="0.45882352939999999" alpha="1" colorSpace="calibratedRGB"/>
+                                                            </view>
+                                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="jQf-k3-eAa">
+                                                                <rect key="frame" x="750" y="0.0" width="375" height="242"/>
+                                                                <color key="backgroundColor" red="0.016804177310000001" green="0.19835099580000001" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                            </view>
+                                                        </subviews>
+                                                        <constraints>
+                                                            <constraint firstItem="w5Y-44-79g" firstAttribute="width" secondItem="WuE-iq-0GW" secondAttribute="width" id="kHy-eU-guw"/>
+                                                            <constraint firstAttribute="height" constant="242" id="qzg-fI-j20"/>
+                                                            <constraint firstItem="jQf-k3-eAa" firstAttribute="width" secondItem="WuE-iq-0GW" secondAttribute="width" id="zDe-Uj-FO0"/>
+                                                        </constraints>
+                                                    </stackView>
+                                                </subviews>
+                                                <constraints>
+                                                    <constraint firstItem="WRe-tD-KTb" firstAttribute="leading" secondItem="xba-kG-VQ2" secondAttribute="leading" id="7QG-dB-afb"/>
+                                                    <constraint firstAttribute="height" constant="242" id="Efw-D6-ksg"/>
+                                                    <constraint firstAttribute="trailing" secondItem="WRe-tD-KTb" secondAttribute="trailing" id="ReM-cV-k0J"/>
+                                                    <constraint firstItem="WRe-tD-KTb" firstAttribute="top" secondItem="xba-kG-VQ2" secondAttribute="top" id="Xla-QL-qwm"/>
+                                                    <constraint firstItem="WuE-iq-0GW" firstAttribute="width" secondItem="xba-kG-VQ2" secondAttribute="width" id="qm0-cd-P69"/>
+                                                    <constraint firstAttribute="bottom" secondItem="WRe-tD-KTb" secondAttribute="bottom" id="uha-Eo-lsv"/>
+                                                </constraints>
+                                            </scrollView>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="j8d-Tc-XQn">
+                                                <rect key="frame" x="0.0" y="242" width="375" height="242"/>
+                                                <color key="backgroundColor" red="0.0078431372550000003" green="0.72156862749999995" blue="0.45882352939999999" alpha="1" colorSpace="calibratedRGB"/>
+                                                <constraints>
+                                                    <constraint firstAttribute="height" constant="242" id="Kw8-aw-DIp"/>
+                                                </constraints>
+                                            </view>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="bxy-HF-a7J">
+                                                <rect key="frame" x="0.0" y="484" width="375" height="242"/>
+                                                <color key="backgroundColor" red="1" green="0.2527923882" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                <constraints>
+                                                    <constraint firstAttribute="height" constant="242" id="AIb-xl-srX"/>
+                                                </constraints>
+                                            </view>
+                                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="ZzA-fs-Va5">
+                                                <rect key="frame" x="0.0" y="726" width="375" height="242"/>
+                                                <color key="backgroundColor" red="0.016804177310000001" green="0.19835099580000001" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                                <constraints>
+                                                    <constraint firstAttribute="height" constant="242" id="TC1-jO-Wcz"/>
+                                                </constraints>
+                                            </view>
+                                        </subviews>
+                                    </stackView>
+                                </subviews>
+                                <constraints>
+                                    <constraint firstItem="lFR-Sp-Sj1" firstAttribute="width" secondItem="sBe-tN-uMi" secondAttribute="width" id="AtD-2C-97K"/>
+                                    <constraint firstAttribute="trailing" secondItem="lFR-Sp-Sj1" secondAttribute="trailing" id="F7t-Kr-VGd"/>
+                                    <constraint firstItem="lFR-Sp-Sj1" firstAttribute="leading" secondItem="sBe-tN-uMi" secondAttribute="leading" id="LzI-O9-5i0"/>
+                                    <constraint firstItem="lFR-Sp-Sj1" firstAttribute="top" secondItem="sBe-tN-uMi" secondAttribute="top" id="VwX-Hz-e8V"/>
+                                    <constraint firstAttribute="bottom" secondItem="lFR-Sp-Sj1" secondAttribute="bottom" id="hJt-0Z-dF3"/>
+                                </constraints>
+                            </scrollView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <gestureRecognizers/>
+                        <constraints>
+                            <constraint firstItem="sBe-tN-uMi" firstAttribute="leading" secondItem="414-Wy-0t1" secondAttribute="leading" id="8Qd-my-knA"/>
+                            <constraint firstItem="sBe-tN-uMi" firstAttribute="top" secondItem="414-Wy-0t1" secondAttribute="top" constant="32" id="9Js-LU-lNr"/>
+                            <constraint firstAttribute="bottom" secondItem="sBe-tN-uMi" secondAttribute="bottom" id="jzB-47-P7e"/>
+                            <constraint firstAttribute="trailing" secondItem="sBe-tN-uMi" secondAttribute="trailing" id="nHG-wg-pLP"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="sL5-d5-za2"/>
+                        <connections>
+                            <outletCollection property="gestureRecognizers" destination="tOa-bf-zGz" appends="YES" id="zle-Sz-M3U"/>
+                            <outletCollection property="gestureRecognizers" destination="SCk-hG-weZ" appends="YES" id="OcK-FK-Lac"/>
+                            <outletCollection property="gestureRecognizers" destination="Fvp-Z6-eVc" appends="YES" id="Fds-J5-YCg"/>
+                        </connections>
+                    </view>
+                    <size key="freeformSize" width="375" height="667"/>
+                    <connections>
+                        <outlet property="scrollView" destination="sBe-tN-uMi" id="h4S-Zl-cLO"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="QSd-gF-l5h" userLabel="First Responder" sceneMemberID="firstResponder"/>
+                <pongPressGestureRecognizer allowableMovement="10" minimumPressDuration="0.5" id="tOa-bf-zGz">
+                    <connections>
+                        <action selector="longPressed:" destination="LAe-jm-k6f" id="sE8-3l-Aos"/>
+                    </connections>
+                </pongPressGestureRecognizer>
+                <tapGestureRecognizer id="SCk-hG-weZ">
+                    <connections>
+                        <action selector="tapped:" destination="LAe-jm-k6f" id="0Cw-vR-zRP"/>
+                    </connections>
+                </tapGestureRecognizer>
+                <swipeGestureRecognizer direction="right" id="Fvp-Z6-eVc">
+                    <connections>
+                        <action selector="swipped:" destination="LAe-jm-k6f" id="Hav-7p-Tg8"/>
+                    </connections>
+                </swipeGestureRecognizer>
+            </objects>
+            <point key="canvasLocation" x="1311" y="806"/>
        </scene>
        <!--Detail View Controller-->
        <scene sceneID="b6k-zi-3wn">
@@ -134,22 +383,86 @@
                                    <action selector="closeWithSender:" destination="YC8-ae-15L" eventType="touchUpInside" id="Z2v-19-S5k"/>
                                </connections>
                            </button>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="8yw-OC-Ubk">
+                                <rect key="frame" x="0.0" y="690" width="375" height="88"/>
+                                <color key="backgroundColor" white="0.66666666666666663" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" constant="88" id="jwV-YU-tXG"/>
+                                </constraints>
+                            </view>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Kva-Z7-0qY" customClass="OnSafeAreaView" customModule="Samples" customModuleProvider="target">
+                                <rect key="frame" x="0.0" y="734" width="375" height="44"/>
+                                <color key="backgroundColor" red="0.0078431372550000003" green="0.72156862749999995" blue="0.45882352939999999" alpha="1" colorSpace="calibratedRGB"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" constant="44" id="DQJ-cY-cKx"/>
+                                </constraints>
+                            </view>
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" spacing="22" translatesAutoresizingMaskIntoConstraints="NO" id="tP3-oJ-4EB">
+                                <rect key="frame" x="130.5" y="108" width="114" height="82"/>
+                                <subviews>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="c5r-jU-haj">
+                                        <rect key="frame" x="0.0" y="0.0" width="114" height="30"/>
+                                        <state key="normal" title="Show"/>
+                                        <connections>
+                                            <action selector="buttonPressed:" destination="YC8-ae-15L" eventType="touchUpInside" id="Mi1-o6-TWt"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="wmd-ab-Nz3">
+                                        <rect key="frame" x="0.0" y="52" width="114" height="30"/>
+                                        <state key="normal" title="Present Modallly"/>
+                                        <connections>
+                                            <action selector="buttonPressed:" destination="YC8-ae-15L" eventType="touchUpInside" id="tjH-Ev-kpx"/>
+                                            <segue destination="bYI-y3-Rzb" kind="presentation" identifier="PresentModallySegue" id="3yq-HE-Tgn"/>
+                                        </connections>
+                                    </button>
+                                </subviews>
+                            </stackView>
                        </subviews>
                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <gestureRecognizers/>
                        <constraints>
                            <constraint firstItem="noi-1a-5bZ" firstAttribute="top" secondItem="g7l-kO-y7q" secondAttribute="top" constant="12" id="EQy-cr-F2Y"/>
+                            <constraint firstItem="tP3-oJ-4EB" firstAttribute="centerX" secondItem="g7l-kO-y7q" secondAttribute="centerX" id="EsD-Vf-dNZ"/>
+                            <constraint firstItem="8yw-OC-Ubk" firstAttribute="bottom" secondItem="g7l-kO-y7q" secondAttribute="bottom" id="JOL-wC-w74"/>
+                            <constraint firstItem="8yw-OC-Ubk" firstAttribute="leading" secondItem="tAi-nk-rDB" secondAttribute="leading" id="RiJ-Hb-OOZ"/>
+                            <constraint firstItem="8yw-OC-Ubk" firstAttribute="trailing" secondItem="tAi-nk-rDB" secondAttribute="trailing" id="Sof-yL-mwK"/>
+                            <constraint firstItem="tP3-oJ-4EB" firstAttribute="top" secondItem="tAi-nk-rDB" secondAttribute="top" constant="88" id="Zhb-Ss-epe"/>
+                            <constraint firstItem="Kva-Z7-0qY" firstAttribute="trailing" secondItem="tAi-nk-rDB" secondAttribute="trailing" id="kkp-Yo-FQW"/>
                            <constraint firstItem="tAi-nk-rDB" firstAttribute="trailing" secondItem="noi-1a-5bZ" secondAttribute="trailing" constant="12" id="lv9-Nf-HNB"/>
+                            <constraint firstItem="Kva-Z7-0qY" firstAttribute="leading" secondItem="tAi-nk-rDB" secondAttribute="leading" id="oVC-i1-TwS"/>
+                            <constraint firstItem="tAi-nk-rDB" firstAttribute="bottom" secondItem="Kva-Z7-0qY" secondAttribute="bottom" id="rW2-mF-5DR"/>
                        </constraints>
                        <viewLayoutGuide key="safeArea" id="tAi-nk-rDB"/>
+                        <connections>
+                            <outletCollection property="gestureRecognizers" destination="6Ca-p8-7uF" appends="YES" id="xOy-f1-NZE"/>
+                            <outletCollection property="gestureRecognizers" destination="SPY-Vr-XDT" appends="YES" id="vgS-Am-jhQ"/>
+                            <outletCollection property="gestureRecognizers" destination="Jg4-it-qJ5" appends="YES" id="ONf-5y-phY"/>
+                        </connections>
                    </view>
                    <size key="freeformSize" width="375" height="778"/>
                    <connections>
                        <outlet property="closeButton" destination="noi-1a-5bZ" id="eWQ-ha-8y7"/>
+                        <segue destination="bYI-y3-Rzb" kind="show" identifier="ShowSegue" id="r1P-2i-NDe"/>
                    </connections>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="Wqk-xl-O3I" userLabel="First Responder" sceneMemberID="firstResponder"/>
+                <tapGestureRecognizer id="6Ca-p8-7uF">
+                    <connections>
+                        <action selector="tapped:" destination="YC8-ae-15L" id="KFd-eT-RLn"/>
+                    </connections>
+                </tapGestureRecognizer>
+                <swipeGestureRecognizer direction="right" id="SPY-Vr-XDT">
+                    <connections>
+                        <action selector="swipped:" destination="YC8-ae-15L" id="OFa-4C-8rI"/>
+                    </connections>
+                </swipeGestureRecognizer>
+                <pongPressGestureRecognizer allowableMovement="10" minimumPressDuration="0.5" id="Jg4-it-qJ5">
+                    <connections>
+                        <action selector="longPressed:" destination="YC8-ae-15L" id="1G4-cf-RDE"/>
+                    </connections>
+                </pongPressGestureRecognizer>
            </objects>
-            <point key="canvasLocation" x="836" y="493.5960591133005"/>
+            <point key="canvasLocation" x="1440.8" y="-23.388305847076463"/>
        </scene>
        <!--Debug Text View Controller-->
        <scene sceneID="Bkq-O7-q4A">
@@ -221,7 +534,10 @@ Section 1.10.33 of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="x1h-y1-h8q" userLabel="First Responder" sceneMemberID="firstResponder"/>
            </objects>
-            <point key="canvasLocation" x="836" y="-446"/>
+            <point key="canvasLocation" x="729" y="-23"/>
        </scene>
    </scenes>
+    <inferredMetricsTieBreakers>
+        <segue reference="3yq-HE-Tgn"/>
+    </inferredMetricsTieBreakers>
 </document>
@@ -86,3 +86,18 @@ class SafeAreaView: UIView {
            ])
    }
 }
+
+
+@IBDesignable
+class OnSafeAreaView: UIView {
+    override func prepareForInterfaceBuilder() {
+        let label = UILabel()
+        label.text = "On Safe Area"
+        addSubview(label)
+        label.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            label.centerXAnchor.constraint(equalTo: self.centerXAnchor),
+            label.centerYAnchor.constraint(equalTo: self.centerYAnchor, constant: -4.0),
+            ])
+    }
+}
@@ -9,7 +9,7 @@
 import UIKit
 import FloatingPanel

-class SampleListViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
+class SampleListViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, FloatingPanelControllerDelegate, FloatingPanelLayout {
    @IBOutlet weak var tableView: UITableView!

    enum Menu: Int, CaseIterable {
@@ -17,13 +17,19 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
        case trackingTextView
        case showDetail
        case showModal
+        case showTabBar
+        case showNestedScrollView
+        case showRemovablePanel

        var name: String {
            switch self {
-            case .trackingTableView: return "Scroll tracking (UITableView)"
-            case .trackingTextView: return "Scroll tracking (UITextView)"
+            case .trackingTableView: return "Scroll tracking(TableView)"
+            case .trackingTextView: return "Scroll tracking(TextView)"
            case .showDetail: return "Show Detail Panel"
            case .showModal: return "Show Modal"
+            case .showTabBar: return "Show Tab Bar"
+            case .showNestedScrollView: return "Show Nested ScrollView"
+            case .showRemovablePanel: return "Show Removable Panel"
            }
        }

@@ -33,12 +39,16 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
            case .trackingTextView: return "ConsoleViewController"
            case .showDetail: return "DetailViewController"
            case .showModal: return "ModalViewController"
+            case .showTabBar: return "TabBarViewController"
+            case .showNestedScrollView: return "NestedScrollViewController"
+            case .showRemovablePanel: return "DetailViewController"
            }
        }
    }

    var mainPanelVC: FloatingPanelController!
    var detailPanelVC: FloatingPanelController!
+    var currentMenu: Menu = .trackingTableView

    override func viewDidLoad() {
        super.viewDidLoad()
@@ -46,30 +56,38 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
        tableView.delegate = self
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")

-        let contentVC = DebugTableViewController(style: .plain)
+        let contentVC = DebugTableViewController()
        addMainPanel(with: contentVC)
    }

+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+    }
+
    func addMainPanel(with contentVC: UIViewController) {
        // Initialize FloatingPanelController
        mainPanelVC = FloatingPanelController()
+        mainPanelVC.delegate = self
+        mainPanelVC.isRemovalInteractionEnabled = (currentMenu == .showRemovablePanel)

        // Initialize FloatingPanelController and add the view
        mainPanelVC.surfaceView.cornerRadius = 6.0
        mainPanelVC.surfaceView.shadowHidden = false

-        // Add a content view controller and connect with the scroll view
-        mainPanelVC.show(contentVC, sender: self)
+        // Set a content view controller
+        mainPanelVC.set(contentViewController: contentVC)

+        // Track a scroll view
        switch contentVC {
        case let consoleVC as DebugTextViewController:
            mainPanelVC.track(scrollView: consoleVC.textView)

        case let contentVC as DebugTableViewController:
            mainPanelVC.track(scrollView: contentVC.tableView)
-
+        case let contentVC as NestedScrollViewController:
+            mainPanelVC.track(scrollView: contentVC.scrollView)
        default:
-            fatalError()
+            break
        }
        //  Add FloatingPanel to self.view
        mainPanelVC.addPanel(toParent: self, belowView: nil, animated: true)
@@ -97,11 +115,13 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let menu = Menu.allCases[indexPath.row]
        let contentVC: UIViewController = {
-            guard let storyboardID = menu.storyboardID else { return DebugTableViewController(style: .plain) }
+            guard let storyboardID = menu.storyboardID else { return DebugTableViewController() }
            guard let vc = self.storyboard?.instantiateViewController(withIdentifier: storyboardID) else { fatalError() }
            return vc
        }()

+        self.currentMenu = menu
+
        switch menu {
        case .showDetail:
            detailPanelVC?.removeFromParent()
@@ -113,14 +133,12 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
            detailPanelVC.surfaceView.cornerRadius = 6.0
            detailPanelVC.surfaceView.shadowHidden = false

-            // Add a content view controller and connect with the scroll view
-            detailPanelVC.show(contentVC, sender: self)
-
-            // (contentVC as? DetailViewController)?.closeButton?.addTarget(self, action: #selector(dismissDetailPanelVC), for: .touchUpInside)
+            // Set a content view controller
+            detailPanelVC.set(contentViewController: contentVC)

            //  Add FloatingPanel to self.view
            detailPanelVC.addPanel(toParent: self, belowView: nil, animated: true)
-        case .showModal:
+        case .showModal, .showTabBar:
            let modalVC = contentVC
            present(modalVC, animated: true, completion: nil)
        default:
@@ -130,6 +148,85 @@ class SampleListViewController: UIViewController, UITableViewDataSource, UITable
            }
        }
    }
+
+    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
+        if currentMenu == .showRemovablePanel {
+            return newCollection.verticalSizeClass == .compact ? RemovablePanelLandscapeLayout() :  RemovablePanelLayout()
+        } else {
+            return self
+        }
+    }
+
+    var initialPosition: FloatingPanelPosition {
+        return .half
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return UIScreen.main.bounds.height == 667.0 ? 18.0 : 16.0
+        case .half: return 262.0
+        case .tip: return 69.0
+        }
+    }
+}
+
+class RemovablePanelLayout: FloatingPanelLayout {
+    var initialPosition: FloatingPanelPosition {
+        return .half
+    }
+    var supportedPositions: Set<FloatingPanelPosition> {
+        return [.full, .half]
+    }
+    var bottomInteractionBuffer: CGFloat {
+        return 261.0 - 22.0
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return 16.0
+        case .half: return 261.0
+        default: return nil
+        }
+    }
+    func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat {
+        return 0.3
+    }
+}
+
+class RemovablePanelLandscapeLayout: FloatingPanelLayout {
+    var initialPosition: FloatingPanelPosition {
+        return .half
+    }
+    var supportedPositions: Set<FloatingPanelPosition> {
+        return [.half]
+    }
+    var bottomInteractionBuffer: CGFloat {
+        return 261.0 - 22.0
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .half: return 261.0
+        default: return nil
+        }
+    }
+    func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat {
+        return 0.3
+    }
+}
+
+class NestedScrollViewController: UIViewController {
+    @IBOutlet weak var scrollView: UIScrollView!
+
+    @IBAction func longPressed(_ sender: Any) {
+        print("LongPressed!")
+    }
+    @IBAction func swipped(_ sender: Any) {
+        print("Swipped!")
+    }
+    @IBAction func tapped(_ sender: Any) {
+        print("Tapped!")
+    }
 }

 class DebugTextViewController: UIViewController, UITextViewDelegate {
@@ -138,6 +235,7 @@ class DebugTextViewController: UIViewController, UITextViewDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        textView.delegate = self
+
        if #available(iOS 11.0, *) {
            textView.contentInsetAdjustmentBehavior = .never
        }
@@ -157,16 +255,98 @@ class DebugTextViewController: UIViewController, UITextViewDelegate {
    }
 }

-class DebugTableViewController: UITableViewController {
+class DebugTableViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
+    weak var tableView: UITableView!
    var items: [String] = []
+    var itemHeight: CGFloat = 66.0
    override func viewDidLoad() {
        super.viewDidLoad()
+
+        let tableView = UITableView(frame: .zero,
+                                    style: .plain)
+        view.addSubview(tableView)
+        tableView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            tableView.topAnchor.constraint(equalTo: view.topAnchor),
+            tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+            tableView.leftAnchor.constraint(equalTo: view.leftAnchor),
+            tableView.rightAnchor.constraint(equalTo: view.rightAnchor)
+            ])
+        tableView.dataSource = self
+        tableView.delegate = self
+        self.tableView = tableView
+
+        let stackView = UIStackView()
+        view.addSubview(stackView)
+        stackView.axis = .vertical
+        stackView.distribution = .fillEqually
+        stackView.alignment = .trailing
+        stackView.spacing = 10.0
+        stackView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            stackView.topAnchor.constraint(equalTo: view.topAnchor, constant: 22.0),
+            stackView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: -22.0),
+            ])
+
+        let button = UIButton()
+        button.setTitle("Animate Scroll", for: .normal)
+        button.setTitleColor(view.tintColor, for: .normal)
+        button.addTarget(self, action: #selector(animateScroll), for: .touchUpInside)
+        stackView.addArrangedSubview(button)
+
+        let button2 = UIButton()
+        button2.setTitle("Change content size", for: .normal)
+        button2.setTitleColor(view.tintColor, for: .normal)
+        button2.addTarget(self, action: #selector(changeContentSize), for: .touchUpInside)
+        stackView.addArrangedSubview(button2)
+
        for i in 0...100 {
            items.append("Items \(i)")
        }
        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
    }

+    @objc func animateScroll() {
+        tableView.scrollToRow(at: IndexPath(row: lround(Double(items.count) / 2.0),
+                                            section: 0),
+                              at: .top, animated: true)
+    }
+
+    @objc func changeContentSize() {
+        let actionSheet = UIAlertController(title: "Change content size", message: "", preferredStyle: .actionSheet)
+        actionSheet.addAction(UIAlertAction(title: "Large", style: .default, handler: { (_) in
+            self.itemHeight = 66.0
+            self.changeItems(100)
+        }))
+        actionSheet.addAction(UIAlertAction(title: "Match", style: .default, handler: { (_) in
+            switch self.tableView.bounds.height {
+            case 585: // iPhone 6,7,8
+                self.itemHeight = self.tableView.bounds.height / 13.0
+                self.changeItems(13)
+            case 656: // iPhone {6,7,8} Plus
+                self.itemHeight = self.tableView.bounds.height / 16.0
+                self.changeItems(16)
+            default: // iPhone X family
+                self.itemHeight = self.tableView.bounds.height / 12.0
+                self.changeItems(12)
+            }
+        }))
+        actionSheet.addAction(UIAlertAction(title: "Short", style: .default, handler: { (_) in
+            self.itemHeight = 66.0
+            self.changeItems(3)
+        }))
+
+        self.present(actionSheet, animated: true, completion: nil)
+    }
+
+    func changeItems(_ count: Int) {
+        items.removeAll()
+        for i in 0..<count {
+            items.append("Items \(i)")
+        }
+        tableView.reloadData()
+    }
+
    @objc func close(sender: UIButton) {
        //  Remove FloatingPanel from a view
        (self.parent as! FloatingPanelController).removePanelFromParent(animated: true, completion: nil)
@@ -189,7 +369,7 @@ class DebugTableViewController: UITableViewController {

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
-        print("Content View: viewDidAppear")
+        print("Content View: viewDidAppear", view.bounds)
    }

    override func viewWillDisappear(_ animated: Bool) {
@@ -216,19 +396,28 @@ class DebugTableViewController: UITableViewController {
        print("Content View: willTransition(to: \(newCollection), with: \(coordinator))")
    }

-    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return items.count
    }

-    override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
-        return 66.0
+    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
+        return itemHeight
    }

-    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
        cell.textLabel?.text = items[indexPath.row]
        return cell
    }
+
+    func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
+        return [
+            UITableViewRowAction(style: .destructive, title: "Delete", handler: { (action, path) in
+                self.items.remove(at: path.row)
+                tableView.deleteRows(at: [path], with: .automatic)
+            }),
+        ]
+    }
 }

 class DetailViewController: UIViewController {
@@ -238,27 +427,54 @@ class DetailViewController: UIViewController {
        // dismiss(animated: true, completion: nil)
        (self.parent as? FloatingPanelController)?.removePanelFromParent(animated: true, completion: nil)
    }
+
+    @IBAction func buttonPressed(_ sender: UIButton) {
+        switch sender.titleLabel?.text {
+        case "Show":
+            performSegue(withIdentifier: "ShowSegue", sender: self)
+        case "Present Modally":
+            performSegue(withIdentifier: "PresentModallySegue", sender: self)
+        default:
+            break
+        }
+    }
+
+    @IBAction func tapped(_ sender: Any) {
+        print("Detail panel is tapped!")
+    }
+    @IBAction func swipped(_ sender: Any) {
+        print("Detail panel is swipped!")
+    }
+    @IBAction func longPressed(_ sender: Any) {
+        print("Detail panel is longPressed!")
+    }
 }

-class ModalViewController: UIViewController {
+class ModalViewController: UIViewController, FloatingPanelControllerDelegate {
    var fpc: FloatingPanelController!
    var consoleVC: DebugTextViewController!
+
    @IBOutlet weak var safeAreaView: UIView!
+
+    var isNewlayout: Bool = false
+
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        // Initialize FloatingPanelController
        fpc = FloatingPanelController()
+        fpc.delegate = self

        // Initialize FloatingPanelController and add the view
        fpc.surfaceView.cornerRadius = 6.0
        fpc.surfaceView.shadowHidden = false

-        // Add a content view controller and connect with the scroll view
+        // Set a content view controller and track the scroll view
        let consoleVC = storyboard?.instantiateViewController(withIdentifier: "ConsoleViewController") as! DebugTextViewController
-        fpc.show(consoleVC, sender: self)
-        self.consoleVC = consoleVC
+        fpc.set(contentViewController: consoleVC)
        fpc.track(scrollView: consoleVC.textView)

+        self.consoleVC = consoleVC
+
        //  Add FloatingPanel to self.view
        fpc.addPanel(toParent: self, belowView: safeAreaView)
    }
@@ -272,4 +488,140 @@ class ModalViewController: UIViewController {
    @IBAction func close(sender: UIButton) {
        dismiss(animated: true, completion: nil)
    }
+
+    @IBAction func moveToFull(sender: UIButton) {
+        fpc.move(to: .full, animated: true)
+    }
+    @IBAction func moveToHalf(sender: UIButton) {
+        fpc.move(to: .half, animated: true)
+    }
+    @IBAction func moveToTip(sender: UIButton) {
+        fpc.move(to: .tip, animated: true)
+    }
+
+    @IBAction func updateLayout(_ sender: Any) {
+        isNewlayout = !isNewlayout
+        UIView.animate(withDuration: 0.5) {
+            self.fpc.updateLayout()
+        }
+    }
+
+    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
+        return (isNewlayout) ? ModalSecondLayout() : nil
+    }
+}
+
+class ModalSecondLayout: FloatingPanelLayout {
+    var initialPosition: FloatingPanelPosition {
+        return .half
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return 18.0
+        case .half: return 262.0
+        case .tip: return 44.0
+        }
+    }
+}
+
+class TabBarViewController: UITabBarController {}
+
+class TabBarContentViewController: UIViewController, FloatingPanelControllerDelegate {
+    var fpc: FloatingPanelController!
+    var consoleVC: DebugTextViewController!
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        // Initialize FloatingPanelController
+        fpc = FloatingPanelController()
+        fpc.delegate = self
+
+        // Initialize FloatingPanelController and add the view
+        fpc.surfaceView.cornerRadius = 6.0
+        fpc.surfaceView.shadowHidden = false
+
+        // Set a content view controller and track the scroll view
+        let consoleVC = storyboard?.instantiateViewController(withIdentifier: "ConsoleViewController") as! DebugTextViewController
+        fpc.set(contentViewController: consoleVC)
+        fpc.track(scrollView: consoleVC.textView)
+        self.consoleVC = consoleVC
+
+        //  Add FloatingPanel to self.view
+        fpc.addPanel(toParent: self)
+    }
+
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        //  Remove FloatingPanel from a view
+        fpc.removePanelFromParent(animated: false)
+    }
+
+    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
+        switch self.tabBarItem.tag {
+        case 0:
+            return OneTabBarPanelLayout()
+        case 1:
+            return TwoTabBarPanel2Layout()
+        default:
+            return nil
+        }
+    }
+
+    @IBAction func close(sender: UIButton) {
+        dismiss(animated: true, completion: nil)
+    }
+}
+
+extension FloatingPanelLayout {
+    func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
+        if #available(iOS 11.0, *) {
+            return [
+                surfaceView.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor, constant: 0.0),
+                surfaceView.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor, constant: 0.0),
+            ]
+        } else {
+            return [
+                surfaceView.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 0.0),
+                surfaceView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0.0),
+            ]
+        }
+    }
+}
+
+class OneTabBarPanelLayout: FloatingPanelLayout {
+    var initialPosition: FloatingPanelPosition {
+        return .tip
+    }
+    var supportedPositions: Set<FloatingPanelPosition> {
+        return [.full, .tip]
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return 16.0
+        case .tip: return 22.0
+        default: return nil
+        }
+    }
+}
+
+class TwoTabBarPanel2Layout: FloatingPanelLayout {
+    var initialPosition: FloatingPanelPosition {
+        return .half
+    }
+    var supportedPositions: Set<FloatingPanelPosition> {
+        return [.full, .half]
+    }
+    var bottomInteractionBuffer: CGFloat {
+        return 261.0 - 22.0
+    }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+        case .full: return 16.0
+        case .half: return 261.0
+        default: return nil
+        }
+    }
 }
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.18" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina5_9" orientation="portrait">
+    <device id="retina4_7" orientation="portrait">
        <adaptation id="fullscreen"/>
    </device>
    <dependencies>
@@ -15,11 +15,11 @@
            <objects>
                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="Stocks" customModuleProvider="target" sceneMemberID="viewController">
                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="812"/>
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <subviews>
                            <scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Uop-sw-I6p">
-                                <rect key="frame" x="0.0" y="109" width="375" height="624.66666666666663"/>
+                                <rect key="frame" x="0.0" y="85" width="375" height="537.5"/>
                                <subviews>
                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" placeholderIntrinsicWidth="375" placeholderIntrinsicHeight="625" image="stocks_list" translatesAutoresizingMaskIntoConstraints="NO" id="XJR-iK-fem">
                                        <rect key="frame" x="0.0" y="0.0" width="375" height="625"/>
@@ -34,10 +34,10 @@
                                </constraints>
                            </scrollView>
                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="dFl-81-6ok">
-                                <rect key="frame" x="0.0" y="733.66666666666663" width="375" height="78.333333333333371"/>
+                                <rect key="frame" x="0.0" y="622.5" width="375" height="44.5"/>
                                <subviews>
                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="yahoo_bottom_bar" translatesAutoresizingMaskIntoConstraints="NO" id="NKr-gS-mpx">
-                                        <rect key="frame" x="0.0" y="0.0" width="375" height="44.333333333333336"/>
+                                        <rect key="frame" x="0.0" y="0.0" width="375" height="44.5"/>
                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                        <constraints>
                                            <constraint firstAttribute="height" relation="greaterThanOrEqual" constant="44.5" id="B5t-ZF-qUj"/>
@@ -52,18 +52,17 @@
                                    <constraint firstItem="NKr-gS-mpx" firstAttribute="leading" secondItem="dFl-81-6ok" secondAttribute="leading" id="T2r-kY-JYy"/>
                                </constraints>
                            </view>
-                            <stackView opaque="NO" contentMode="scaleToFill" fixedFrame="YES" axis="vertical" alignment="top" spacing="-8" translatesAutoresizingMaskIntoConstraints="NO" id="f7r-Al-pIN">
-                                <rect key="frame" x="16" y="44.000000000000014" width="153.33333333333334" height="56.666666666666664"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" alignment="top" spacing="-8" translatesAutoresizingMaskIntoConstraints="NO" id="f7r-Al-pIN">
+                                <rect key="frame" x="16" y="20" width="153.5" height="57"/>
                                <subviews>
                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="STOCKS" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="PCG-Wl-fXa">
-                                        <rect key="frame" x="0.0" y="0.0" width="111.66666666666667" height="32.333333333333336"/>
+                                        <rect key="frame" x="0.0" y="0.0" width="111.5" height="32.5"/>
                                        <fontDescription key="fontDescription" type="system" weight="heavy" pointSize="27"/>
                                        <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                        <nil key="highlightedColor"/>
                                    </label>
                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="OCTOBER 5" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="XmK-pu-9g4">
-                                        <rect key="frame" x="0.0" y="24.333333333333332" width="153.33333333333334" height="32.333333333333343"/>
+                                        <rect key="frame" x="0.0" y="24.5" width="153.5" height="32.5"/>
                                        <fontDescription key="fontDescription" type="system" weight="heavy" pointSize="27"/>
                                        <color key="textColor" red="0.55308091640472412" green="0.55657511949539185" blue="0.57255202531814575" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                        <nil key="highlightedColor"/>
@@ -75,10 +74,12 @@
                        <constraints>
                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="dFl-81-6ok" secondAttribute="trailing" id="20i-yz-AaQ"/>
                            <constraint firstItem="Uop-sw-I6p" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="44w-r8-vYl"/>
+                            <constraint firstItem="f7r-Al-pIN" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="16" id="4Bq-Km-eET"/>
                            <constraint firstItem="Uop-sw-I6p" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="65" id="CXL-Dk-8MM"/>
                            <constraint firstItem="Uop-sw-I6p" firstAttribute="trailing" secondItem="6Tk-OE-BBY" secondAttribute="trailing" id="CsO-WF-T8L"/>
                            <constraint firstItem="dFl-81-6ok" firstAttribute="top" secondItem="Uop-sw-I6p" secondAttribute="bottom" id="Cz0-dW-r9H"/>
                            <constraint firstAttribute="bottom" secondItem="dFl-81-6ok" secondAttribute="bottom" id="KGl-8W-5ja"/>
+                            <constraint firstItem="f7r-Al-pIN" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="1.4210854715202004e-14" id="Qvt-vQ-PpT"/>
                            <constraint firstItem="dFl-81-6ok" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="nlX-Ab-1aI"/>
                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="NKr-gS-mpx" secondAttribute="bottom" id="yeu-NH-Pmp"/>
                        </constraints>
@@ -34,8 +34,8 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {

        newsVC = storyboard?.instantiateViewController(withIdentifier: "News") as? NewsViewController

-        // Add a content view controller
-        fpc.show(newsVC, sender: self)
+        // Set a content view controller
+        fpc.set(contentViewController: newsVC)
        fpc.track(scrollView: newsVC.scrollView)

        fpc.addPanel(toParent: self, belowView: bottomToolView, animated: false)
@@ -102,15 +102,14 @@ class NewsViewController: UIViewController {
 // MARK: My custom layout

 class FloatingPanelStocksLayout: FloatingPanelLayout {
-    public var supportedPositions: [FloatingPanelPosition] {
-        return [.full, .half, .tip]
-    }
-
-    public var initialPosition: FloatingPanelPosition {
+    var initialPosition: FloatingPanelPosition {
        return .tip
    }

-    public func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+    var topInteractionBuffer: CGFloat { return 0.0 }
+    var bottomInteractionBuffer: CGFloat { return 0.0 }
+
+    func insetFor(position: FloatingPanelPosition) -> CGFloat? {
        switch position {
        case .full: return 56.0
        case .half: return 262.0
@@ -118,14 +117,9 @@ class FloatingPanelStocksLayout: FloatingPanelLayout {
        }
    }

-    public func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
-        return [
-            surfaceView.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor, constant: 0.0),
-            surfaceView.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor, constant: 0.0),
-        ]
+    func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat {
+        return 0.0
    }
-
-    var backdropAlpha: CGFloat = 0.0
 }

 // MARK: My custom behavior
@@ -1,10 +1,10 @@
 Pod::Spec.new do |s|

  s.name                = "FloatingPanel"
-  s.version             = "1.0.0"
-  s.summary             = "FloatingPanel is a simple and easy-to-use UI component of a floating panel interface"
+  s.version             = "1.2.2"
+  s.summary             = "FloatingPanel is a clean and easy-to-use UI component of a floating panel interface."
  s.description         = <<-DESC
-FloatingPanel is a simple and easy-to-use UI component for a new interface introduced in Apple Maps, Shortcuts and Stocks app.
+FloatingPanel is a clean and easy-to-use UI component for a new interface introduced in Apple Maps, Shortcuts and Stocks app.
 The new interface displays the related contents and utilities in parallel as a user wants.
                   DESC
  s.homepage            = "https://github.com/SCENEE/FloatingPanel"
@@ -33,11 +33,21 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate

    unowned let viewcontroller: FloatingPanelController

-    private(set) var state: FloatingPanelPosition = .tip
+    private(set) var state: FloatingPanelPosition = .tip {
+        didSet { viewcontroller.delegate?.floatingPanelDidChangePosition(viewcontroller) }
+    }
+
+    private var isBottomState: Bool {
+        let remains = layoutAdapter.layout.supportedPositions.filter { $0.rawValue > state.rawValue }
+        return remains.count == 0
+    }
+
+    let panGesture: FloatingPanelPanGestureRecognizer
+    var isRemovalInteractionEnabled: Bool = false

    private var animator: UIViewPropertyAnimator?
-    private let panGesture: UIPanGestureRecognizer
    private var initialFrame: CGRect = .zero
+    private var initialScrollOffset: CGPoint = .zero
    private var transOffsetY: CGFloat = 0
    private var interactionInProgress: Bool = false

@@ -60,7 +70,9 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
                                                        layout: layout)
        self.behavior = behavior

-        panGesture = UIPanGestureRecognizer()
+        state = layoutAdapter.layout.initialPosition
+
+        panGesture = FloatingPanelPanGestureRecognizer()

        if #available(iOS 11.0, *) {
            panGesture.name = "FloatingPanelSurface"
@@ -73,7 +85,7 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        panGesture.delegate = self
    }

-    func layoutViews(in vc: UIViewController) {
+    func setUpViews(in vc: UIViewController) {
        unowned let view = vc.view!

        view.insertSubview(backdropView, belowSubview: surfaceView)
@@ -83,17 +95,43 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
    }

    func move(to: FloatingPanelPosition, animated: Bool, completion: (() -> Void)? = nil) {
+        move(from: state, to: to, animated: animated, completion: completion)
+    }
+
+    func present(animated: Bool, completion: (() -> Void)? = nil) {
+        self.layoutAdapter.activateLayout(of: nil)
+        move(from: nil, to: layoutAdapter.layout.initialPosition, animated: animated, completion: completion)
+    }
+
+    func dismiss(animated: Bool, completion: (() -> Void)? = nil) {
+        move(from: state, to: nil, animated: animated, completion: completion)
+    }
+
+    private func move(from: FloatingPanelPosition?, to: FloatingPanelPosition?, animated: Bool, completion: (() -> Void)? = nil) {
        if to != .full {
            lockScrollView()
        }

        if animated {
-            let animator = behavior.presentAnimator(self.viewcontroller, from: state, to: to)
+            let animator: UIViewPropertyAnimator
+            switch (from, to) {
+            case (nil, let to?):
+                animator = behavior.addAnimator(self.viewcontroller, to: to)
+            case (let from?, let to?):
+                animator = behavior.moveAnimator(self.viewcontroller, from: from, to: to)
+            case (let from?, nil):
+                animator = behavior.removeAnimator(self.viewcontroller, from: from)
+            case (nil, nil):
+                fatalError()
+            }
+
            animator.addAnimations { [weak self] in
                guard let self = self else { return }

                self.updateLayout(to: to)
-                self.state = to
+                if let to = to {
+                    self.state = to
+                }
            }
            animator.addCompletion { _ in
                completion?()
@@ -101,30 +139,9 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
            animator.startAnimation()
        } else {
            self.updateLayout(to: to)
-            self.state = to
-            completion?()
-        }
-    }
-
-    func present(animated: Bool, completion: (() -> Void)? = nil) {
-        self.layoutAdapter.activateLayout(of: nil)
-        move(to: layoutAdapter.layout.initialPosition, animated: animated, completion: completion)
-    }
-
-    func dismiss(animated: Bool, completion: (() -> Void)? = nil) {
-        if animated {
-            let animator = behavior.dismissAnimator(self.viewcontroller, from: state)
-            animator.addAnimations { [weak self] in
-                guard let self = self else { return }
-
-                self.updateLayout(to: nil)
+            if let to = to {
+                self.state = to
            }
-            animator.addCompletion { _ in
-                completion?()
-            }
-            animator.startAnimation()
-        } else {
-            self.updateLayout(to: nil)
            completion?()
        }
    }
@@ -133,23 +150,24 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate

    private func updateLayout(to target: FloatingPanelPosition?) {
        self.layoutAdapter.activateLayout(of: target)
-        self.setBackdropAlpha(of: target)
-    }
-
-    private func setBackdropAlpha(of target: FloatingPanelPosition?) {
-        switch target {
-        case .full?:
-            self.backdropView.alpha = layoutAdapter.layout.backdropAlpha
-        default:
-            self.backdropView.alpha = 0.0
-        }
    }

    private func getBackdropAlpha(with translation: CGPoint) -> CGFloat {
-        let topY = layoutAdapter.topY
-        let middleY = layoutAdapter.middleY
        let currentY = getCurrentY(from: initialFrame, with: translation)
-        return (1 - (currentY - topY) / (middleY - topY)) * layoutAdapter.layout.backdropAlpha
+
+        let next = directionalPosition(with: translation)
+        let pre = redirectionalPosition(with: translation)
+        let nextY = layoutAdapter.positionY(for: next)
+        let preY = layoutAdapter.positionY(for: pre)
+
+        let nextAlpha = layoutAdapter.layout.backdropAlphaFor(position: next)
+        let preAlpha = layoutAdapter.layout.backdropAlphaFor(position: pre)
+
+        if preY == nextY {
+            return preAlpha
+        } else {
+            return preAlpha + max(min(1.0, 1.0 - (nextY - currentY) / (nextY - preY) ), 0.0) * (nextAlpha - preAlpha)
+        }
    }

    // MARK: - UIGestureRecognizerDelegate
@@ -158,59 +176,155 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
                                  shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        guard gestureRecognizer == panGesture else { return false }

-        log.debug("shouldRecognizeSimultaneouslyWith", otherGestureRecognizer)
+        /* log.debug("shouldRecognizeSimultaneouslyWith", otherGestureRecognizer) */

-        return otherGestureRecognizer == scrollView?.panGestureRecognizer
+        // all gestures of the tracking scroll view should be recognized in parallel
+        // and handle them in self.handle(panGesture:)
+        return scrollView?.gestureRecognizers?.contains(otherGestureRecognizer) ?? false
    }

    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        guard gestureRecognizer == panGesture else { return false }

-        // Do not begin any gestures excluding scrollView?.panGestureRecognizer until the pan gesture fails
-        if otherGestureRecognizer == scrollView?.panGestureRecognizer {
+        /* log.debug("shouldBeRequiredToFailBy", otherGestureRecognizer) */
+
+        // The tracking scroll view's gestures should begin without waiting for the pan gesture failure.
+        // `scrollView.gestureRecognizers` can contains the following gestures
+        // * UIScrollViewDelayedTouchesBeganGestureRecognizer
+        // * UIScrollViewPanGestureRecognizer (scrollView.panGestureRecognizer)
+        // * _UIDragAutoScrollGestureRecognizer
+        // * _UISwipeActionPanGestureRecognizer
+        // * UISwipeDismissalGestureRecognizer
+        if let scrollView = scrollView,
+            let scrollGestureRecognizers = scrollView.gestureRecognizers,
+            scrollGestureRecognizers.contains(otherGestureRecognizer) {
            return false
-        } else {
+        }
+
+        // Long press gesture should begin without waiting for the pan gesture failure.
+        if otherGestureRecognizer is UILongPressGestureRecognizer {
+            return false
+        }
+
+        // Do not begin any other gestures until the pan gesture fails.
+        return true
+    }
+
+    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOf otherGestureRecognizer: UIGestureRecognizer) -> Bool {
+        guard gestureRecognizer == panGesture else { return false }
+
+        log.debug("shouldRequireFailureOf", otherGestureRecognizer)
+
+        // Should begin the pan gesture without waiting for the tracking scroll view's gestures.
+        // `scrollView.gestureRecognizers` can contains the following gestures
+        // * UIScrollViewDelayedTouchesBeganGestureRecognizer
+        // * UIScrollViewPanGestureRecognizer (scrollView.panGestureRecognizer)
+        // * _UIDragAutoScrollGestureRecognizer
+        // * _UISwipeActionPanGestureRecognizer
+        // * UISwipeDismissalGestureRecognizer
+        if let scrollView = scrollView {
+            // On short contents scroll, `_UISwipeActionPanGestureRecognizer` blocks
+            // the panel's pan gesture if not returns false
+            if let scrollGestureRecognizers = scrollView.gestureRecognizers,
+                scrollGestureRecognizers.contains(otherGestureRecognizer) {
+                return false
+            }
+        }
+
+        switch otherGestureRecognizer {
+        case is UIPanGestureRecognizer,
+             is UISwipeGestureRecognizer,
+             is UIRotationGestureRecognizer,
+             is UIScreenEdgePanGestureRecognizer,
+             is UIPinchGestureRecognizer:
+            // Do not begin the pan gesture until these gestures fail
            return true
+        default:
+            // Should begin the pan gesture witout waiting tap/long press gestures fail
+            return false
        }
    }

-    // MARK: - Gesture handling
+    var grabberAreaFrame: CGRect {
+        let grabberAreaFrame = CGRect(x: surfaceView.bounds.origin.x,
+                                     y: surfaceView.bounds.origin.y,
+                                     width: surfaceView.bounds.width,
+                                     height: FloatingPanelSurfaceView.topGrabberBarHeight * 2)
+        return grabberAreaFrame
+    }

+    // MARK: - Gesture handling
+    private let offsetThreshold: CGFloat = 5.0 // Optimal value from testing
    @objc func handle(panGesture: UIPanGestureRecognizer) {
        log.debug("Gesture >>>>", panGesture)
+        let velocity = panGesture.velocity(in: panGesture.view)

        switch panGesture {
        case scrollView?.panGestureRecognizer:
            guard let scrollView = scrollView else { return }
+
+            log.debug("SrollPanGesture ScrollView.contentOffset >>>", scrollView.contentOffset.y, scrollView.contentSize, scrollView.bounds.size)
+
+            // Prevent scoll slip by the top bounce when the scroll view's height is
+            // less than the content's height
+            if scrollView.isDecelerating == false, scrollView.contentSize.height > scrollView.bounds.height {
+                scrollView.bounces = (scrollView.contentOffset.y > offsetThreshold)
+            }
+
            if surfaceView.frame.minY > layoutAdapter.topY {
-                scrollView.contentOffset.y = scrollView.contentOffsetZero.y
+                switch state {
+                case .full:
+                    let point = panGesture.location(in: surfaceView)
+                    if grabberAreaFrame.contains(point) {
+                        // Preserve the current content offset in moving from full.
+                        scrollView.contentOffset.y = initialScrollOffset.y
+                    } else {
+                        // Prevent over scrolling in moving from full.
+                        scrollView.contentOffset.y = scrollView.contentOffsetZero.y
+                    }
+                case .half, .tip:
+                    guard scrollView.isDecelerating == false else {
+                        // Don't fix the scroll offset in animating the panel to half and tip.
+                        // It causes a buggy scrolling deceleration because `state` becomes
+                        // a target position in animating the panel on the interaction from full.
+                        return
+                    }
+                    // Fix the scroll offset in moving the panel from half and tip.
+                    scrollView.contentOffset.y = initialScrollOffset.y
+                }
+
+                // Always hide a scroll indicator at the non-top.
+                if interactionInProgress {
+                    lockScrollView()
+                }
+            } else {
+                // Always show a scroll indicator at the top.
+                if interactionInProgress {
+                    unlockScrollView()
+                }
            }
        case panGesture:
            let translation = panGesture.translation(in: panGesture.view!.superview)
-            let velocity = panGesture.velocity(in: panGesture.view)
            let location = panGesture.location(in: panGesture.view)

-            log.debug(panGesture.state, ">>>", "{ translation: \(translation), velocity: \(velocity) }")
+            log.debug(panGesture.state, ">>>", "translation: \(translation.y), velocity: \(velocity.y)")

-            if let scrollView = scrollView, scrollView.frame.contains(location) {
-                log.debug("ScrollView.contentOffset >>>", scrollView.contentOffset)
-                if state == .full {
-                    if scrollView.contentOffset.y - scrollView.contentOffsetZero.y > 0 {
-                        return
-                    }
-                    if scrollView.isDecelerating {
-                        return
-                    }
-                    if interactionInProgress == false, velocity.y < 0 || velocity.y > 2500.0 {
-                        return
-                    }
-                }
+            if shouldScrollViewHandleTouch(scrollView, point: location, velocity: velocity) {
+                return
+            }
+
+            if let animator = self.animator {
+                animator.stopAnimation(true)
+                self.animator = nil
            }

            switch panGesture.state {
            case .began:
                panningBegan()
            case .changed:
+                if interactionInProgress == false {
+                    startInteraction(with: translation)
+                }
                panningChange(with: translation)
            case .ended, .cancelled, .failed:
                panningEnd(with: translation, velocity: velocity)
@@ -222,18 +336,56 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        }
    }

+    private func shouldScrollViewHandleTouch(_ scrollView: UIScrollView?, point: CGPoint, velocity: CGPoint) -> Bool {
+        // When no scrollView, nothing to handle.
+        guard let scrollView = scrollView else { return false }
+
+        // For _UISwipeActionPanGestureRecognizer
+        if let scrollGestureRecognizers = scrollView.gestureRecognizers {
+            for gesture in scrollGestureRecognizers {
+                guard gesture.state == .began || gesture.state == .changed
+                else { continue }
+
+                if gesture !=  scrollView.panGestureRecognizer {
+                    return true
+                }
+            }
+        }
+
+        guard
+            state == .full,                   // When not .full, don't scroll.
+            interactionInProgress == false,   // When interaction already in progress, don't scroll.
+            scrollView.frame.contains(point), // When point not in scrollView, don't scroll.
+            !grabberAreaFrame.contains(point) // When point within grabber area, don't scroll.
+        else {
+            return false
+        }
+
+        log.debug("ScrollView.contentOffset >>>", scrollView.contentOffset.y)
+
+        let offset = scrollView.contentOffset.y - scrollView.contentOffsetZero.y
+        if  abs(offset) > offsetThreshold {
+            return true
+        }
+        if scrollView.isDecelerating {
+            return true
+        }
+        if velocity.y < 0 {
+            return true
+        }
+
+        return false
+    }
+
    private func panningBegan() {
        // A user interaction does not always start from Began state of the pan gesture
        // because it can be recognized in scrolling a content in a content view controller.
-        // So I don't nothing here.
-        log.debug("panningBegan \(initialFrame)")
+        // So do nothing here.
+        log.debug("panningBegan")
    }

    private func panningChange(with translation: CGPoint) {
        log.debug("panningChange")
-        if interactionInProgress == false {
-            startInteraction(with: translation)
-        }

        let currentY = getCurrentY(from: initialFrame, with: translation)

@@ -251,36 +403,73 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
            initialFrame = surfaceView.frame
        }

-        stopScrollDeceleration = (surfaceView.frame.minY > layoutAdapter.topY) // Projecting the dragging to the scroll dragging
+        stopScrollDeceleration = (surfaceView.frame.minY > layoutAdapter.topY) // Projecting the dragging to the scroll dragging or not

        let targetPosition = self.targetPosition(with: translation, velocity: velocity)
        let distance = self.distance(to: targetPosition, with: translation)

        endInteraction(for: targetPosition)

+        if isRemovalInteractionEnabled, isBottomState {
+            if startRemovalAnimation(with: translation, velocity: velocity, distance: distance) {
+                return
+            }
+        }
+
        viewcontroller.delegate?.floatingPanelDidEndDragging(viewcontroller, withVelocity: velocity, targetPosition: targetPosition)
        viewcontroller.delegate?.floatingPanelWillBeginDecelerating(viewcontroller)

        startAnimation(to: targetPosition, at: distance, with: velocity)
    }

+    private func startRemovalAnimation(with translation: CGPoint, velocity: CGPoint, distance: CGFloat) -> Bool {
+        let posY = layoutAdapter.positionY(for: state)
+        let currentY = getCurrentY(from: initialFrame, with: translation)
+        let safeAreaBottomY = layoutAdapter.safeAreaBottomY
+        let vth = behavior.removalVelocity
+        let pth = max(min(behavior.removalProgress, 1.0), 0.0)
+        let velocityVector = (distance != 0) ? CGVector(dx: 0, dy: max(min(velocity.y/distance, vth), 0.0)) : .zero
+
+        guard (safeAreaBottomY - posY) != 0 else { return false }
+        guard (currentY - posY) / (safeAreaBottomY - posY) >= pth || velocityVector.dy == vth else { return false }
+
+        viewcontroller.delegate?.floatingPanelDidEndDraggingToRemove(viewcontroller, withVelocity: velocity)
+        let animator = self.behavior.removalInteractionAnimator(self.viewcontroller, with: velocityVector)
+        animator.addAnimations { [weak self] in
+            guard let self = self else { return }
+            self.updateLayout(to: nil)
+        }
+        animator.addCompletion({ [weak self] (_) in
+            guard let self = self else { return }
+            self.viewcontroller.removePanelFromParent(animated: false)
+            self.viewcontroller.delegate?.floatingPanelDidEndRemove(self.viewcontroller)
+        })
+        animator.startAnimation()
+        return true
+    }
+
    private func startInteraction(with translation: CGPoint) {
+        /* Don't lock a scroll view to show a scroll indicator after hitting the top */
        log.debug("startInteraction")
        initialFrame = surfaceView.frame
+        if let scrollView = scrollView {
+            initialScrollOffset = scrollView.contentOffset
+        }
        transOffsetY = translation.y
-        viewcontroller.delegate?.floatingPanelWillBeginDragging(viewcontroller)

-        lockScrollView()
+        viewcontroller.delegate?.floatingPanelWillBeginDragging(viewcontroller)

        interactionInProgress = true
    }

    private func endInteraction(for targetPosition: FloatingPanelPosition) {
        log.debug("endInteraction for \(targetPosition)")
-        if targetPosition != .full {
-            lockScrollView(withBounce: true)
-        }
        interactionInProgress = false
+
+        // Prevent to keep a scoll view indicator visible at the half/tip position
+        if targetPosition != .full {
+            lockScrollView()
+        }
    }

    private func getCurrentY(from rect: CGRect, with translation: CGPoint) -> CGFloat {
@@ -288,9 +477,7 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        let y = rect.offsetBy(dx: 0.0, dy: dy).origin.y

        let topY = layoutAdapter.topY
-        let topInset = layoutAdapter.topInset
        let topBuffer = layoutAdapter.layout.topInteractionBuffer
-
        let bottomY = layoutAdapter.bottomY
        let bottomBuffer = layoutAdapter.layout.bottomInteractionBuffer

@@ -300,19 +487,18 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
                return max(topY, min(bottomY, y))
            }
        }
-        return max(topY - topInset + topBuffer, min(bottomY + bottomBuffer, y))
+        return max(topY - topBuffer, min(bottomY + bottomBuffer, y))
    }

    private func startAnimation(to targetPosition: FloatingPanelPosition, at distance: CGFloat, with velocity: CGPoint) {
        let targetY = layoutAdapter.positionY(for: targetPosition)
        let velocityVector = (distance != 0) ? CGVector(dx: 0, dy: max(min(velocity.y/distance, 30.0), -30.0)) : .zero
        let animator = behavior.interactionAnimator(self.viewcontroller, to: targetPosition, with: velocityVector)
-        animator.isInterruptible = false // To prevent a backdrop color's punk
        animator.addAnimations { [weak self] in
            guard let self = self else { return }
            if self.state == targetPosition {
                self.surfaceView.frame.origin.y = targetY
-                self.setBackdropAlpha(of: targetPosition)
+                self.layoutAdapter.setBackdropAlpha(of: targetPosition)
            } else {
                self.updateLayout(to: targetPosition)
            }
@@ -336,8 +522,11 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        self.animator = nil
        self.viewcontroller.delegate?.floatingPanelDidEndDecelerating(self.viewcontroller)

+        stopScrollDeceleration = false
        // Don't unlock scroll view in animating view when presentation layer != model layer
-        unlockScrollView()
+        if targetPosition == .full {
+            unlockScrollView()
+        }
    }

    private func distance(to targetPosition: FloatingPanelPosition, with translation: CGPoint) -> CGFloat {
@@ -355,6 +544,66 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        }
    }

+    private func directionalPosition(with translation: CGPoint) -> FloatingPanelPosition {
+        let currentY = getCurrentY(from: initialFrame, with: translation)
+
+        let supportedPositions: Set = layoutAdapter.layout.supportedPositions
+
+        if supportedPositions.count == 1 {
+            return state
+        }
+
+        switch supportedPositions {
+        case [.full, .half]: return translation.y >= 0 ? .half : .full
+        case [.half, .tip]: return translation.y >= 0 ? .tip : .half
+        case [.full, .tip]: return translation.y >= 0 ? .tip : .full
+        default:
+            let middleY = layoutAdapter.middleY
+
+            switch state {
+            case .full:
+                if translation.y <= 0 {
+                    return .full
+                }
+                return currentY > middleY ? .tip : .half
+            case .half:
+                return translation.y >= 0 ? .tip : .full
+            case .tip:
+                if translation.y >= 0 {
+                    return .tip
+                }
+                return currentY > middleY ? .half : .full
+            }
+        }
+    }
+
+    private func redirectionalPosition(with translation: CGPoint) -> FloatingPanelPosition {
+        let currentY = getCurrentY(from: initialFrame, with: translation)
+
+        let supportedPositions: Set = layoutAdapter.layout.supportedPositions
+
+        if supportedPositions.count == 1 {
+            return state
+        }
+
+        switch supportedPositions {
+        case [.full, .half]: return translation.y >= 0 ? .full : .half
+        case [.half, .tip]: return translation.y >= 0 ? .half : .tip
+        case [.full, .tip]: return translation.y >= 0 ? .full : .tip
+        default:
+            let middleY = layoutAdapter.middleY
+
+            switch state {
+            case .full:
+                return currentY > middleY ? .half : .full
+            case .half:
+                return .half
+            case .tip:
+                return currentY > middleY ? .tip : .half
+            }
+        }
+    }
+
    // Distance travelled after decelerating to zero velocity at a constant rate.
    // Refer to the slides p176 of [Designing Fluid Interfaces](https://developer.apple.com/videos/play/wwdc2018/803/)
    private func project(initialVelocity: CGFloat) -> CGFloat {
@@ -364,27 +613,59 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate

    private func targetPosition(with translation: CGPoint, velocity: CGPoint) -> (FloatingPanelPosition) {
        let currentY = getCurrentY(from: initialFrame, with: translation)
-        let supportedPositions = Set(layoutAdapter.layout.supportedPositions)
+        let supportedPositions: Set = layoutAdapter.layout.supportedPositions

-        assert(supportedPositions.count > 1)
+        if supportedPositions.count == 1 {
+            return state
+        }

        switch supportedPositions {
-        case Set([.full, .half]):
+        case [.full, .half]:
+            return targetPosition(from: [.full, .half], at: currentY, velocity: velocity)
+        case [.half, .tip]:
            return targetPosition(from: [.half, .tip], at: currentY, velocity: velocity)
-        case Set([.half, .tip]):
-            return targetPosition(from: [.half, .tip], at: currentY, velocity: velocity)
-        case Set([.full, .tip]):
+        case [.full, .tip]:
            return targetPosition(from: [.full, .tip], at: currentY, velocity: velocity)
        default:
            /*
-             [topY|full]---[th1]---[middleY|default]---[th2]---[bottomY|collapsed]
+             [topY|full]---[th1]---[middleY|half]---[th2]---[bottomY|tip]
             */
            let topY = layoutAdapter.topY
            let middleY = layoutAdapter.middleY
            let bottomY = layoutAdapter.bottomY

-            let th1 = (topY + middleY) / 2
-            let th2 = (middleY + bottomY) / 2
+            let target: FloatingPanelPosition
+            let forwardYDirection: Bool
+
+            switch state {
+            case .full:
+                target = .half
+                forwardYDirection = true
+            case .half:
+                if (currentY < middleY) {
+                    target = .full
+                    forwardYDirection = false
+                } else {
+                    target = .tip
+                    forwardYDirection = true
+                }
+            case .tip:
+                target = .half
+                forwardYDirection = false
+            }
+
+            let redirectionalProgress = max(min(behavior.redirectionalProgress(viewcontroller, from: state, to: target), 1.0), 0.0)
+
+            let th1: CGFloat
+            let th2: CGFloat
+
+            if forwardYDirection {
+                th1 = topY + (middleY - topY) * redirectionalProgress
+                th2 = middleY + (bottomY - middleY) * redirectionalProgress
+            } else {
+                th1 = middleY - (middleY - topY) * redirectionalProgress
+                th2 = bottomY - (bottomY - middleY) * redirectionalProgress
+            }

            switch currentY {
            case ..<th1:
@@ -424,7 +705,10 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        let topY = layoutAdapter.positionY(for: top)
        let bottomY = layoutAdapter.positionY(for: bottom)

-        let th = (topY + bottomY) / 2
+        let target = top == state ? bottom : top
+        let redirectionalProgress = max(min(behavior.redirectionalProgress(viewcontroller, from: state, to: target), 1.0), 0.0)
+
+        let th = topY + (bottomY - topY) * redirectionalProgress

        switch currentY {
        case ..<th:
@@ -444,17 +728,15 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate

    // MARK: - ScrollView handling

-    func lockScrollView(withBounce bounce: Bool = false) {
+    private func lockScrollView() {
        guard let scrollView = scrollView else { return }

        scrollView.isDirectionalLockEnabled = true
-        if bounce {
-            scrollView.bounces = false
-        }
+        scrollView.bounces = false
        scrollView.showsVerticalScrollIndicator = false
    }

-    func unlockScrollView() {
+    private func unlockScrollView() {
        guard let scrollView = scrollView else { return }

        scrollView.isDirectionalLockEnabled = false
@@ -476,6 +758,13 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        }
    }

+    func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
+        if state != .full {
+            initialScrollOffset = scrollView.contentOffset
+        }
+        userScrollViewDelegate?.scrollViewDidEndScrollingAnimation?(scrollView)
+    }
+
    func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
        if stopScrollDeceleration {
            targetContentOffset.pointee = scrollView.contentOffset
@@ -485,3 +774,21 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
        }
    }
 }
+
+class FloatingPanelPanGestureRecognizer: UIPanGestureRecognizer {
+    override weak var delegate: UIGestureRecognizerDelegate? {
+        get {
+            return super.delegate
+        }
+        set {
+            guard newValue is FloatingPanel else {
+                let exception = NSException(name: .invalidArgumentException,
+                                            reason: "FloatingPanelController's built-in pan gesture recognizer must have its controller as its delegate.",
+                                            userInfo: nil)
+                exception.raise()
+                return
+            }
+            super.delegate = newValue
+        }
+    }
+}
@@ -6,32 +6,89 @@
 import UIKit

 public protocol FloatingPanelBehavior {
-    // Returns a UIViewPropertyAnimator object in interacting a floating panel by a user pan gesture
+    /// Returns the progress to redirect to the previous position
+    ///
+    /// The progress is represented by a floating-point value between 0.0 and 1.0, inclusive, where 1.0 indicates the floating panel is impossible to move to the next posiiton. The default value is 0.5. Values less than 0.0 and greater than 1.0 are pinned to those limits.
+    func redirectionalProgress(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> CGFloat
+
+    /// Returns a UIViewPropertyAnimator object to project a floating panel to a position on finger up if the user dragged.
    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator

-    // Returns a UIViewPropertyAnimator object to present a floating panel
-    func presentAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator
-    // Returns a UIViewPropertyAnimator object to dismiss a floating panel
-    func dismissAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator
+    /// Returns a UIViewPropertyAnimator object to add a floating panel to a position.
+    ///
+    /// Its animator instance will be used to animate the surface view in `FloatingPanelController.addPanel(toParent:belowView:animated:)`.
+    /// Default is an animator with ease-in-out curve and 0.25 sec duration.
+    func addAnimator(_ fpc: FloatingPanelController, to: FloatingPanelPosition) -> UIViewPropertyAnimator
+
+    /// Returns a UIViewPropertyAnimator object to remove a floating panel from a position.
+    ///
+    /// Its animator instance will be used to animate the surface view in `FloatingPanelController.removePanelFromParent(animated:completion:)`.
+    /// Default is an animator with ease-in-out curve and 0.25 sec duration.
+    func removeAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator
+
+    /// Returns a UIViewPropertyAnimator object to move a floating panel from a position to a position.
+    ///
+    /// Its animator instance will be used to animate the surface view in `FloatingPanelController.move(to:animated:completion:)`.
+    /// Default is an animator with ease-in-out curve and 0.25 sec duration.
+    func moveAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator
+
+    /// Returns a y-axis velocity to invoke a removal interaction at the bottom position.
+    ///
+    /// Default is 10.0. This method is called when FloatingPanelController.isRemovalInteractionEnabled is true.
+    var removalVelocity: CGFloat { get }
+
+    /// Returns the threshold of the transition to invoke a removal interaction at the bottom position.
+    ///
+    /// The progress is represented by a floating-point value between 0.0 and 1.0, inclusive, where 1.0 indicates the floating panel is impossible to invoke the removal interaction. The default value is 0.5. Values less than 0.0 and greater than 1.0 are pinned to those limits. This method is called when FloatingPanelController.isRemovalInteractionEnabled is true.
+    var removalProgress: CGFloat { get }
+
+    /// Returns a UIViewPropertyAnimator object to remove a floating panel with a velocity interactively at the bottom position.
+    ///
+    /// Default is a spring animator with 1.0 damping ratio. This method is called when FloatingPanelController.isRemovalInteractionEnabled is true.
+    func removalInteractionAnimator(_ fpc: FloatingPanelController, with velocity: CGVector) -> UIViewPropertyAnimator
 }

 public extension FloatingPanelBehavior {
-    func presentAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator {
+    func redirectionalProgress(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> CGFloat {
+        return 0.5
+    }
+
+    func addAnimator(_ fpc: FloatingPanelController, to: FloatingPanelPosition) -> UIViewPropertyAnimator {
        return UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut)
    }

-    func dismissAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator {
+    func removeAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator {
        return UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut)
    }
+
+    func moveAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator {
+        return UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut)
+    }
+
+    var removalVelocity: CGFloat {
+        return 10.0
+    }
+
+    var removalProgress: CGFloat {
+        return 0.5
+    }
+
+    func removalInteractionAnimator(_ fpc: FloatingPanelController, with velocity: CGVector) -> UIViewPropertyAnimator {
+        log.debug("velocity", velocity)
+        let timing = UISpringTimingParameters(dampingRatio: 1.0,
+                                        frequencyResponse: 0.3,
+                                        initialVelocity: velocity)
+        return UIViewPropertyAnimator(duration: 0, timingParameters: timing)
+    }
 }

 class FloatingPanelDefaultBehavior: FloatingPanelBehavior {
    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
-        let timing = timeingCurve(to: targetPosition, with: velocity)
+        let timing = timeingCurve(with: velocity)
        return UIViewPropertyAnimator(duration: 0, timingParameters: timing)
    }

-    private func timeingCurve(to: FloatingPanelPosition, with velocity: CGVector) -> UITimingCurveProvider {
+    private func timeingCurve(with velocity: CGVector) -> UITimingCurveProvider {
        log.debug("velocity", velocity)
        let damping = self.getDamping(with: velocity)
        return UISpringTimingParameters(dampingRatio: damping,
@@ -12,6 +12,8 @@ public protocol FloatingPanelControllerDelegate: class {
    // if it returns nil, FloatingPanelController uses the default behavior
    func floatingPanel(_ vc: FloatingPanelController, behaviorFor newCollection: UITraitCollection) -> FloatingPanelBehavior?

+    func floatingPanelDidChangePosition(_ vc: FloatingPanelController) // changed the settled position in the model layer
+
    func floatingPanelDidMove(_ vc: FloatingPanelController) // any offset changes

    // called on start of dragging (may require some time and or distance to move)
@@ -20,6 +22,11 @@ public protocol FloatingPanelControllerDelegate: class {
    func floatingPanelDidEndDragging(_ vc: FloatingPanelController, withVelocity velocity: CGPoint, targetPosition: FloatingPanelPosition)
    func floatingPanelWillBeginDecelerating(_ vc: FloatingPanelController) // called on finger up as we are moving
    func floatingPanelDidEndDecelerating(_ vc: FloatingPanelController) // called when scroll view grinds to a halt
+
+    // called on start of dragging to remove its views from a parent view controller
+    func floatingPanelDidEndDraggingToRemove(_ vc: FloatingPanelController, withVelocity velocity: CGPoint)
+    // called when its views are removed from a parent view controller
+    func floatingPanelDidEndRemove(_ vc: FloatingPanelController)
 }

 public extension FloatingPanelControllerDelegate {
@@ -29,14 +36,18 @@ public extension FloatingPanelControllerDelegate {
    func floatingPanel(_ vc: FloatingPanelController, behaviorFor newCollection: UITraitCollection) -> FloatingPanelBehavior? {
        return nil
    }
+    func floatingPanelDidChangePosition(_ vc: FloatingPanelController) {}
    func floatingPanelDidMove(_ vc: FloatingPanelController) {}
    func floatingPanelWillBeginDragging(_ vc: FloatingPanelController) {}
    func floatingPanelDidEndDragging(_ vc: FloatingPanelController, withVelocity velocity: CGPoint, targetPosition: FloatingPanelPosition) {}
    func floatingPanelWillBeginDecelerating(_ vc: FloatingPanelController) {}
    func floatingPanelDidEndDecelerating(_ vc: FloatingPanelController) {}
+
+    func floatingPanelDidEndDraggingToRemove(_ vc: FloatingPanelController, withVelocity velocity: CGPoint) {}
+    func floatingPanelDidEndRemove(_ vc: FloatingPanelController) {}
 }

-public enum FloatingPanelPosition: Int {
+public enum FloatingPanelPosition: Int, CaseIterable {
    case full
    case half
    case tip
@@ -66,35 +77,72 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
        return floatingPanel.backdropView
    }

-    /// Returns the scroll view that the conroller tracks.
+    /// Returns the scroll view that the controller tracks.
    public weak var scrollView: UIScrollView? {
        return floatingPanel.scrollView
    }

+    // The underlying gesture recognizer for pan gestures
+    public var panGestureRecognizer: UIPanGestureRecognizer {
+        return floatingPanel.panGesture
+    }
+
    /// The current position of the floating panel controller's contents.
    public var position: FloatingPanelPosition {
        return floatingPanel.state
    }

-    /// The content insets of the tracking scroll view derived the safe area of the parent view
+    /// The layout object managed by the controller
+    public var layout: FloatingPanelLayout {
+        return floatingPanel.layoutAdapter.layout
+    }
+
+    /// The behavior object managed by the controller
+    public var behavior: FloatingPanelBehavior {
+        return floatingPanel.behavior
+    }
+
+    /// The content insets of the tracking scroll view derived from the safe area of the parent view
    public var adjustedContentInsets: UIEdgeInsets {
        return floatingPanel.layoutAdapter.adjustedContentInsets
    }

    /// The behavior for determining the adjusted content offsets.
    ///
-    /// This property specifies how the content area of the tracking scroll view are modified using `adjustedContentInsets`. The default value of this property is FloatingPanelController.ContentInsetAdjustmentBehavior.always.
+    /// This property specifies how the content area of the tracking scroll view is modified using `adjustedContentInsets`. The default value of this property is FloatingPanelController.ContentInsetAdjustmentBehavior.always.
    public var contentInsetAdjustmentBehavior: ContentInsetAdjustmentBehavior = .always

+    /// A Boolean value that determines whether the removal interaction is enabled.
+    public var isRemovalInteractionEnabled: Bool {
+        set { floatingPanel.isRemovalInteractionEnabled = newValue }
+        get { return floatingPanel.isRemovalInteractionEnabled }
+    }
+
+    /// The view controller responsible for the content portion of the floating panel.
+    public var contentViewController: UIViewController? {
+        set { set(contentViewController: newValue) }
+        get { return _contentViewController }
+    }
+    private var _contentViewController: UIViewController?
+
    private var floatingPanel: FloatingPanel!
+    private var layoutInsetsObservations: [NSKeyValueObservation] = []

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
+
+        floatingPanel = FloatingPanel(self,
+                                      layout: fetchLayout(for: self.traitCollection),
+                                      behavior: fetchBehavior(for: self.traitCollection))
    }

-    /// Initialize a newly created a floating panel controller.
+    /// Initialize a newly created floating panel controller.
    public init() {
        super.init(nibName: nil, bundle: nil)
+
+        floatingPanel = FloatingPanel(self,
+                                      layout: fetchLayout(for: self.traitCollection),
+                                      behavior: fetchBehavior(for: self.traitCollection))
    }

    /// Creates the view that the controller manages.
@@ -105,25 +153,15 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
        view.backgroundColor = .white

        self.view = view as UIView
-
-        let layout = fetchLayout(for: self.traitCollection)
-        let behavior = fetchBehavior(for: self.traitCollection)
-        floatingPanel = FloatingPanel(self,
-                                      layout: layout,
-                                      behavior: behavior)
    }

    public override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
        super.willTransition(to: newCollection, with: coordinator)

        // Change layout for a new trait collection
-        floatingPanel.layoutAdapter.layout = fetchLayout(for: newCollection)
+        updateLayout(for: newCollection)
+
        floatingPanel.behavior = fetchBehavior(for: newCollection)
-
-        guard let parent = parent else { fatalError() }
-
-        floatingPanel.layoutAdapter.prepareLayout(toParent: parent)
-        floatingPanel.layoutAdapter.activateLayout(of: floatingPanel.state)
    }

    public override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
@@ -133,14 +171,12 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
        if let parent = parent {
            self.update(safeAreaInsets: parent.layoutInsets)
        }
-        floatingPanel.layoutAdapter.updateHeight()
-        floatingPanel.backdropView.isHidden = (traitCollection.verticalSizeClass == .compact)
    }

    public override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

-        // I needs to update safeAreaInsets here to ensure that the `adjustedContentInsets` has a correct value.
+        // Need to update safeAreaInsets here to ensure that the `adjustedContentInsets` has a correct value.
        // Because the parent VC does not call viewSafeAreaInsetsDidChange() expectedly and
        // `view.safeAreaInsets` has a correct value of the bottom inset here.
        if let parent = parent {
@@ -162,7 +198,13 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
    }

    private func update(safeAreaInsets: UIEdgeInsets) {
+        // preserve the current content offset
+        let contentOffset = scrollView?.contentOffset
+
        floatingPanel.safeAreaInsets = safeAreaInsets
+
+        scrollView?.contentOffset = contentOffset ?? .zero
+
        switch contentInsetAdjustmentBehavior {
        case .always:
            scrollView?.contentInset = adjustedContentInsets
@@ -172,12 +214,21 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
        }
    }

+    private func updateLayout(for traitCollection: UITraitCollection) {
+        floatingPanel.layoutAdapter.layout = fetchLayout(for: traitCollection)
+
+        guard let parent = parent else { return }
+
+        floatingPanel.layoutAdapter.prepareLayout(toParent: parent)
+        floatingPanel.layoutAdapter.activateLayout(of: floatingPanel.state)
+    }
+
    // MARK: - Container view controller interface

-    /// Adds the view managed the controller as a child of the specified view controller.
+    /// Adds the view managed by the controller as a child of the specified view controller.
    /// - Parameters:
-    ///     - parent: A parent view controller object that displays FloatingPanelController's view. A conatiner view controller object isn't applicable.
-    ///     - belowView: Insert the surface view managed by the controller below the specified view. As default, the surface view will be added to the end of the parent list of subviews.
+    ///     - parent: A parent view controller object that displays FloatingPanelController's view. A container view controller object isn't applicable.
+    ///     - belowView: Insert the surface view managed by the controller below the specified view. By default, the surface view will be added to the end of the parent list of subviews.
    ///     - animated: Pass true to animate the presentation; otherwise, pass false.
    public func addPanel(toParent parent: UIViewController, belowView: UIView? = nil, animated: Bool = false) {
        guard self.parent == nil else {
@@ -185,8 +236,10 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
            return
        }
        precondition((parent is UINavigationController) == false, "UINavigationController displays only one child view controller at a time.")
-        precondition((parent is UITableViewController) == false, "UITableViewController should not be the parent because the view hierarchy will be break in reusing cells.")
-        precondition((parent is UICollectionViewController) == false, "UICollectionViewController should not be the parent because the view hierarchy will be break in reusing cells.")
+        precondition((parent is UITabBarController) == false, "UITabBarController displays child view controllers with a radio-style selection interface")
+        precondition((parent is UISplitViewController) == false, "UISplitViewController manages two child view controllers in a master-detail interface")
+        precondition((parent is UITableViewController) == false, "UITableViewController should not be the parent because the view is a table view so that a floating panel doens't work well")
+        precondition((parent is UICollectionViewController) == false, "UICollectionViewController should not be the parent because the view is a collection view so that a floating panel doens't work well")

        view.frame = parent.view.bounds
        if let belowView = belowView {
@@ -195,11 +248,33 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
            parent.view.addSubview(self.view)
        }

+        layoutInsetsObservations.removeAll()
+
+        // Must track safeAreaInsets/{top,bottom}LayoutGuide of the `parent.view`
+        // to update floatingPanel.safeAreaInsets`. There are 2 reasons.
+        // 1. The parent VC doesn't call viewSafeAreaInsetsDidChange() on the bottom
+        // inset's update expectedly.
+        // 2. The safe area top inset can be variable on the large title navigation bar.
+        // That's why it needs the observation to keep `adjustedContentInsets` correct.
+        if #available(iOS 11.0, *) {
+            let observaion = parent.observe(\.view.safeAreaInsets) { [weak self] (vc, chaneg) in
+                guard let self = self else { return }
+                self.update(safeAreaInsets: vc.layoutInsets)
+            }
+            layoutInsetsObservations.append(observaion)
+        } else {
+            // KVOs for topLayoutGuide & bottomLayoutGuide are not effective.
+            // Instead, safeAreaInsets will be updated in viewDidAppear()
+        }
+
        parent.addChild(self)

-        // Must set a layout again here because `self.traitCollection` is applied correctly on it's added to a parent VC
+        // Must set a layout again here because `self.traitCollection` is applied correctly once it's added to a parent VC
        floatingPanel.layoutAdapter.layout = fetchLayout(for: traitCollection)
-        floatingPanel.layoutViews(in: parent)
+        floatingPanel.behavior = fetchBehavior(for: traitCollection)
+
+        floatingPanel.setUpViews(in: parent)
+
        floatingPanel.present(animated: animated) { [weak self] in
            guard let self = self else { return }
            self.didMove(toParent: parent)
@@ -216,11 +291,14 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
            return
        }

+        layoutInsetsObservations.removeAll()
+
        floatingPanel.dismiss(animated: animated) { [weak self] in
            guard let self = self else { return }

            self.willMove(toParent: nil)
            self.view.removeFromSuperview()
+	      	self.backdropView.removeFromSuperview()
            self.removeFromParent()
            completion?()
        }
@@ -230,25 +308,41 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
    /// - Parameters:
    ///     - to: Pass a FloatingPanelPosition value to move the surface view to the position.
    ///     - animated: Pass true to animate the presentation; otherwise, pass false.
-    ///     - completion: The block to execute after the view controller is dismissed. This block has no return value and takes no parameters. You may specify nil for this parameter.
+    ///     - completion: The block to execute after the view controller has finished moving. This block has no return value and takes no parameters. You may specify nil for this parameter.
    public func move(to: FloatingPanelPosition, animated: Bool, completion: (() -> Void)? = nil) {
        floatingPanel.move(to: to, animated: animated, completion: completion)
    }

-    /// Presents the specified view controller as the content view controller in the surface view interface.
+    /// Sets the view controller responsible for the content portion of the floating panel..
+    public func set(contentViewController: UIViewController?) {
+        if let vc = _contentViewController {
+            vc.willMove(toParent: nil)
+            vc.view.removeFromSuperview()
+            vc.removeFromParent()
+        }
+
+        if let vc = contentViewController {
+            let surfaceView = self.view as! FloatingPanelSurfaceView
+            surfaceView.add(childView: vc.view)
+            addChild(vc)
+            vc.didMove(toParent: self)
+        }
+
+        _contentViewController = contentViewController
+    }
+
+    @available(*, unavailable, renamed: "set(contentViewController:)")
    public override func show(_ vc: UIViewController, sender: Any?) {
-        let surfaceView = self.view as! FloatingPanelSurfaceView
-        surfaceView.contentView.addSubview(vc.view)
-        vc.view.frame = surfaceView.contentView.bounds
-        vc.view.translatesAutoresizingMaskIntoConstraints = false
-        NSLayoutConstraint.activate([
-            vc.view.topAnchor.constraint(equalTo: surfaceView.contentView.topAnchor, constant: 0.0),
-            vc.view.leftAnchor.constraint(equalTo: surfaceView.contentView.leftAnchor, constant: 0.0),
-            vc.view.rightAnchor.constraint(equalTo: surfaceView.contentView.rightAnchor, constant: 0.0),
-            vc.view.bottomAnchor.constraint(equalTo: surfaceView.contentView.bottomAnchor, constant: 0.0),
-            ])
-        addChild(vc)
-        vc.didMove(toParent: self)
+        if let target = self.parent?.targetViewController(forAction: #selector(UIViewController.show(_:sender:)), sender: sender) {
+            target.show(vc, sender: sender)
+        }
+    }
+
+    @available(*, unavailable, renamed: "set(contentViewController:)")
+    public override func showDetailViewController(_ vc: UIViewController, sender: Any?) {
+        if let target = self.parent?.targetViewController(forAction: #selector(UIViewController.showDetailViewController(_:sender:)), sender: sender) {
+            target.showDetailViewController(vc, sender: sender)
+        }
    }

    // MARK: - Scroll view tracking
@@ -256,12 +350,14 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
    /// Tracks the specified scroll view to correspond with the scroll.
    ///
    /// - Attention:
-    ///     The specified scroll view must be already assigned the delegate property because the controller intemediates the several delegate methods.
+    ///     The specified scroll view must be already assigned to the delegate property because the controller intermediates between the various delegate methods.
    ///
    public func track(scrollView: UIScrollView) {
        floatingPanel.scrollView = scrollView
-        floatingPanel.userScrollViewDelegate = scrollView.delegate
-        scrollView.delegate = floatingPanel
+        if scrollView.delegate !== floatingPanel {
+            floatingPanel.userScrollViewDelegate = scrollView.delegate
+            scrollView.delegate = floatingPanel
+        }
        switch contentInsetAdjustmentBehavior {
        case .always:
            if #available(iOS 11.0, *) {
@@ -276,7 +372,18 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
        }
    }

-    // MARK: - Helpers
+    // MARK: - Utilities
+
+    /// Updates the layout object from the delegate and lays out the views managed
+    /// by the controller immediately.
+    ///
+    /// This method updates the `FloatingPanelLayout` object from the delegate and
+    /// then it calls `layoutIfNeeded()` of the parent's root view to force the view
+    /// to update the floating panel's layout immediately. It can be called in an
+    /// animation block.
+    public func updateLayout() {
+        updateLayout(for: view.traitCollection)
+    }

    /// Returns the y-coordinate of the point at the origin of the surface view
    public func originYOfSurface(for pos: FloatingPanelPosition) -> CGFloat {
@@ -6,41 +6,57 @@
 import UIKit

 public protocol FloatingPanelLayout: class {
-    /// Returns the initial position of a floating panel
+    /// Returns the initial position of a floating panel.
    var initialPosition: FloatingPanelPosition { get }
-    /// Returns an array of FloatingPanelPosition object to tell the applicable position the floating panel controller
-    var supportedPositions: [FloatingPanelPosition] { get }

-    /// Return the interaction buffer of full position. Default is 6.0.
+    /// Returns a set of FloatingPanelPosition objects to tell the applicable positions of the floating panel controller. Default is all of them.
+    var supportedPositions: Set<FloatingPanelPosition> { get }
+
+    /// Return the interaction buffer to the top from the top position. Default is 6.0.
    var topInteractionBuffer: CGFloat { get }
-    /// Return the interaction buffer of full position. Default is 6.0.
+
+    /// Return the interaction buffer to the bottom from the bottom position. Default is 6.0.
    var bottomInteractionBuffer: CGFloat { get }

-    /// Returns a CGFloat value for a floating panel position(full, half, tip).
-    /// A value for full position indicates an inset from the safe area top.
-    /// On the other hand, values fro half and tip positions indicate insets from the safe area bottom.
+    /// Returns a CGFloat value to determine a floating panel height for each position(full, half and tip).
+    /// A value for full position indicates a top inset from a safe area.
+    /// On the other hand, values for half and tip positions indicate bottom insets from a safe area.
    /// If a position doesn't contain the supported positions, return nil.
    func insetFor(position: FloatingPanelPosition) -> CGFloat?
-    /// Returns layout constraints for a surface view of a floaitng panel.
-    /// The layout constraints must not include ones for topAnchor and bottomAnchor
-    /// because constarints for them will be added by the floating panel controller.
+
+    /// Returns X-axis and width layout constraints of the surface view of a floating panel.
+    /// You must not include any Y-axis and height layout constraints of the surface view
+    /// because their constraints will be configured by the floating panel controller.
+    /// By default, the width of a surface view fits a safe area.
    func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint]

-    /// Return the backdrop alpha of black color in full position. Default is 0.3.
-    var backdropAlpha: CGFloat { get }
+    /// Returns a CGFloat value to determine the backdrop view's alpha for a position.
+    ///
+    /// Default is 0.3 at full position, otherwise 0.0.
+    func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat
 }

 public extension FloatingPanelLayout {
-    var backdropAlpha: CGFloat { return 0.3 }
    var topInteractionBuffer: CGFloat { return 6.0 }
    var bottomInteractionBuffer: CGFloat { return 6.0 }
+
+    var supportedPositions: Set<FloatingPanelPosition> {
+        return Set(FloatingPanelPosition.allCases)
+    }
+    
+    func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
+        return [
+            surfaceView.leftAnchor.constraint(equalTo: view.sideLayoutGuide.leftAnchor, constant: 0.0),
+            surfaceView.rightAnchor.constraint(equalTo: view.sideLayoutGuide.rightAnchor, constant: 0.0),
+        ]
+    }
+
+    func backdropAlphaFor(position: FloatingPanelPosition) -> CGFloat {
+        return position == .full ? 0.3 : 0.0
+    }
 }

 public class FloatingPanelDefaultLayout: FloatingPanelLayout {
-    public var supportedPositions: [FloatingPanelPosition] {
-        return [.full, .half, .tip]
-    }
-
    public var initialPosition: FloatingPanelPosition {
        return .half
    }
@@ -52,20 +68,13 @@ public class FloatingPanelDefaultLayout: FloatingPanelLayout {
        case .tip: return 69.0
        }
    }
-
-    public func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
-        return [
-            surfaceView.leftAnchor.constraint(equalTo: view.sideLayoutGuide.leftAnchor, constant: 0.0),
-            surfaceView.rightAnchor.constraint(equalTo: view.sideLayoutGuide.rightAnchor, constant: 0.0),
-        ]
-    }
 }

 public class FloatingPanelDefaultLandscapeLayout: FloatingPanelLayout {
    public var initialPosition: FloatingPanelPosition {
        return .tip
    }
-    public var supportedPositions: [FloatingPanelPosition] {
+    public var supportedPositions: Set<FloatingPanelPosition> {
        return [.full, .tip]
    }

@@ -76,44 +85,52 @@ public class FloatingPanelDefaultLandscapeLayout: FloatingPanelLayout {
        default: return nil
        }
    }
-
-    public func prepareLayout(surfaceView: UIView, in view: UIView) -> [NSLayoutConstraint] {
-        return [
-            surfaceView.leftAnchor.constraint(equalTo: view.sideLayoutGuide.leftAnchor, constant: 8.0),
-            surfaceView.widthAnchor.constraint(equalToConstant: 291),
-            ]
-    }
 }


 class FloatingPanelLayoutAdapter {
+    private weak var parent: UIViewController!
    private weak var surfaceView: FloatingPanelSurfaceView!
-    private weak var backdropVIew: FloatingPanelBackdropView!
+    private weak var backdropView: FloatingPanelBackdropView!

-    var layout: FloatingPanelLayout
+    var layout: FloatingPanelLayout {
+        didSet {
+            checkLayoutConsistance()
+        }
+    }

-    var safeAreaInsets: UIEdgeInsets = .zero
+    var safeAreaInsets: UIEdgeInsets = .zero {
+        didSet {
+            updateHeight()
+            checkLayoutConsistance()
+        }
+    }

+    private var parentHeight: CGFloat = 0.0
    private var heightBuffer: CGFloat = 88.0 // For bounce
    private var fixedConstraints: [NSLayoutConstraint] = []
    private var fullConstraints: [NSLayoutConstraint] = []
    private var halfConstraints: [NSLayoutConstraint] = []
    private var tipConstraints: [NSLayoutConstraint] = []
    private var offConstraints: [NSLayoutConstraint] = []
-    private var heightConstraints: NSLayoutConstraint? = nil
+    private var heightConstraints: [NSLayoutConstraint] = []

-    var topInset: CGFloat {
+    private var fullInset: CGFloat {
        return layout.insetFor(position: .full) ?? 0.0
    }
-    var halfInset: CGFloat {
+    private var halfInset: CGFloat {
        return layout.insetFor(position: .half) ?? 0.0
    }
-    var tipInset: CGFloat {
+    private var tipInset: CGFloat {
        return layout.insetFor(position: .tip) ?? 0.0
    }

    var topY: CGFloat {
-        return (safeAreaInsets.top + topInset)
+        if layout.supportedPositions.contains(.full) {
+            return (safeAreaInsets.top + fullInset)
+        } else {
+            return middleY
+        }
    }

    var middleY: CGFloat {
@@ -121,13 +138,21 @@ class FloatingPanelLayoutAdapter {
    }

    var bottomY: CGFloat {
-        return surfaceView.superview!.bounds.height - (safeAreaInsets.bottom + tipInset)
+        if layout.supportedPositions.contains(.tip) {
+            return surfaceView.superview!.bounds.height - (safeAreaInsets.bottom + tipInset)
+        } else {
+            return middleY
+        }
+    }
+
+    var safeAreaBottomY: CGFloat {
+        return surfaceView.superview!.bounds.height - (safeAreaInsets.bottom)
    }

    var adjustedContentInsets: UIEdgeInsets {
        return UIEdgeInsets(top: 0.0,
                            left: 0.0,
-                            bottom: (safeAreaInsets.top + topInset) + (heightBuffer + safeAreaInsets.bottom),
+                            bottom: safeAreaInsets.bottom,
                            right: 0.0)
    }

@@ -145,40 +170,35 @@ class FloatingPanelLayoutAdapter {
    init(surfaceView: FloatingPanelSurfaceView, backdropView: FloatingPanelBackdropView, layout: FloatingPanelLayout) {
        self.layout = layout
        self.surfaceView = surfaceView
-        self.backdropVIew = backdropView
-
-        // Verify layout configurations
-        assert(layout.supportedPositions.count > 1)
-        assert(layout.supportedPositions.contains(layout.initialPosition))
-        if halfInset > 0 {
-            assert(halfInset >= tipInset)
-        }
+        self.backdropView = backdropView
    }

    func prepareLayout(toParent parent: UIViewController) {
+        self.parent = parent
+
        surfaceView.translatesAutoresizingMaskIntoConstraints = false
-        backdropVIew.translatesAutoresizingMaskIntoConstraints = false
+        backdropView.translatesAutoresizingMaskIntoConstraints = false

        NSLayoutConstraint.deactivate(fixedConstraints + fullConstraints + halfConstraints + tipConstraints + offConstraints)

        // Fixed constraints of surface and backdrop views
        let surfaceConstraints = layout.prepareLayout(surfaceView: surfaceView, in: parent.view!)
-        let backdroptConstraints = [
-            backdropVIew.topAnchor.constraint(equalTo: parent.view.topAnchor,
+        let backdropConstraints = [
+            backdropView.topAnchor.constraint(equalTo: parent.view.topAnchor,
                                              constant: 0.0),
-            backdropVIew.leftAnchor.constraint(equalTo: parent.view.leftAnchor,
+            backdropView.leftAnchor.constraint(equalTo: parent.view.leftAnchor,
                                               constant: 0.0),
-            backdropVIew.rightAnchor.constraint(equalTo: parent.view.rightAnchor,
+            backdropView.rightAnchor.constraint(equalTo: parent.view.rightAnchor,
                                                constant: 0.0),
-            backdropVIew.bottomAnchor.constraint(equalTo: parent.view.bottomAnchor,
+            backdropView.bottomAnchor.constraint(equalTo: parent.view.bottomAnchor,
                                                 constant: 0.0),
            ]
-        fixedConstraints = surfaceConstraints + backdroptConstraints
+        fixedConstraints = surfaceConstraints + backdropConstraints

        // Flexible surface constarints for full, half, tip and off
        fullConstraints = [
            surfaceView.topAnchor.constraint(equalTo: parent.layoutGuide.topAnchor,
-                                             constant: topInset),
+                                             constant: fullInset),
        ]
        halfConstraints = [
            surfaceView.topAnchor.constraint(equalTo: parent.layoutGuide.bottomAnchor,
@@ -189,7 +209,7 @@ class FloatingPanelLayoutAdapter {
                                             constant: -tipInset),
        ]
        offConstraints = [
-            surfaceView.topAnchor.constraint(equalTo: parent.layoutGuide.bottomAnchor, constant: 0.0),
+            surfaceView.topAnchor.constraint(equalTo: parent.view.bottomAnchor, constant: 0.0),
        ]
    }

@@ -202,18 +222,24 @@ class FloatingPanelLayoutAdapter {
            }
        }

-        if let heightConstraints = self.heightConstraints {
-            NSLayoutConstraint.deactivate([heightConstraints])
-        }
-        let heightConstraints = surfaceView.heightAnchor.constraint(equalToConstant: UIScreen.main.bounds.height + heightBuffer)
-        NSLayoutConstraint.activate([heightConstraints])
-        self.heightConstraints = heightConstraints
+        NSLayoutConstraint.deactivate(heightConstraints)
+        // Must use the parent height, not the screen height because safe area insets
+        // of the parent are relative values. For example, a view controller in
+        // Navigation controller's safe area insets and frame can be changed whether
+        // the navigation bar is translucent or not.
+        let height = self.parent.view.bounds.height - (safeAreaInsets.top + fullInset)
+        heightConstraints = [
+            surfaceView.heightAnchor.constraint(equalToConstant: height)
+        ]
+        NSLayoutConstraint.activate(heightConstraints)
+        surfaceView.set(bottomOverflow: heightBuffer)
    }

    func activateLayout(of state: FloatingPanelPosition?) {
        defer {
            surfaceView.superview!.layoutIfNeeded()
        }
+        setBackdropAlpha(of: state)

        NSLayoutConstraint.activate(fixedConstraints)

@@ -240,4 +266,34 @@ class FloatingPanelLayoutAdapter {
            NSLayoutConstraint.activate(tipConstraints)
        }
    }
+
+    func setBackdropAlpha(of target: FloatingPanelPosition?) {
+        if let target = target {
+            self.backdropView.alpha = layout.backdropAlphaFor(position: target)
+        } else {
+            self.backdropView.alpha = 0.0
+        }
+    }
+
+    func checkLayoutConsistance() {
+        // Verify layout configurations
+        let supportedPositions = layout.supportedPositions
+
+        assert(supportedPositions.count > 0)
+        assert(supportedPositions.contains(layout.initialPosition),
+               "Does not include an initial potision(\(layout.initialPosition)) in supportedPositions(\(supportedPositions))")
+
+        supportedPositions.forEach { pos in
+            assert(layout.insetFor(position: pos) != nil,
+                   "Undefined an inset for a pos(\(pos))")
+        }
+
+        if halfInset > 0 {
+            assert(halfInset > tipInset, "Invalid half and tip insets")
+        }
+        if fullInset > 0 {
+            assert(middleY > topY, "Invalid insets")
+            assert(bottomY > topY, "Invalid insets")
+        }
+    }
 }
@@ -21,17 +21,18 @@ public class FloatingPanelSurfaceView: UIView {
    /// A UIView object that can have the surface view added to it.
    public var contentView: UIView!

-    private var color: UIColor? = .white { didSet { setNeedsDisplay() } }
+    private var color: UIColor? = .white { didSet { setNeedsLayout() } }
+    private var bottomOverflow: CGFloat = 0.0 // Must not call setNeedsLayout()

    public override var backgroundColor: UIColor? {
        get { return color }
-        set {
-            color = newValue
-            setNeedsDisplay()
-        }
+        set { color = newValue }
    }

-    /// The radius to use when drawing rounded corners
+    /// The radius to use when drawing top rounded corners.
+    ///
+    /// `self.contentView` is masked with the top rounded corners automatically on iOS 11 and later.
+    /// On iOS 10, they are not automatically masked because of a UIVisualEffectView issue. See https://forums.developer.apple.com/thread/50854
    public var cornerRadius: CGFloat = 0.0 { didSet { setNeedsLayout() } }

    /// A Boolean indicating whether the surface shadow is displayed.
@@ -55,7 +56,7 @@ public class FloatingPanelSurfaceView: UIView {
    /// The color of the surface border.
    public var borderWidth: CGFloat = 0.0  { didSet { setNeedsLayout() } }

-    private var shadowLayer: CAShapeLayer!  { didSet { setNeedsLayout() } }
+    private var backgroundLayer: CAShapeLayer!  { didSet { setNeedsLayout() } }

    private struct Default {
        public static let grabberTopPadding: CGFloat = 6.0
@@ -73,11 +74,16 @@ public class FloatingPanelSurfaceView: UIView {

    private func render() {
        super.backgroundColor = .clear
+        self.clipsToBounds = false
+
+        let backgroundLayer = CAShapeLayer()
+        layer.insertSublayer(backgroundLayer, at: 0)
+        self.backgroundLayer = backgroundLayer

        let contentView = FloatingPanelSurfaceContentView()
        addSubview(contentView)
        self.contentView = contentView as UIView
-        // contentView.backgroundColor = .lightGray
+        contentView.backgroundColor = color
        contentView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            contentView.topAnchor.constraint(equalTo: topAnchor, constant: 0.0),
@@ -101,37 +107,69 @@ public class FloatingPanelSurfaceView: UIView {

    public override func layoutSubviews() {
        super.layoutSubviews()
-        updateShadowLayer()
-        // Don't use `contentView.layer.mask` because of UIVisualEffectView issue on ios10, https://forums.developer.apple.com/thread/50854
-        contentView.layer.cornerRadius = cornerRadius
-        contentView.clipsToBounds = true
+
+        updateLayers()
+        updateContentViewMask()
+
        contentView.layer.borderColor = borderColor?.cgColor
        contentView.layer.borderWidth = borderWidth
+        contentView.backgroundColor = color
    }

-    private func updateShadowLayer() {
-        if shadowLayer != nil {
-            shadowLayer.removeFromSuperlayer()
-        }
-        shadowLayer = makeShadowLayer()
-        layer.insertSublayer(shadowLayer, at: 0)
-    }
-
-    private func makeShadowLayer() -> CAShapeLayer {
+    private func updateLayers() {
        log.debug("SurfaceView bounds", bounds)
-        let shadowLayer = CAShapeLayer()
-        let path = UIBezierPath(roundedRect: bounds,
+        
+        var rect = bounds
+        rect.size.height += bottomOverflow // Expand the height for overflow buffer
+        let path = UIBezierPath(roundedRect: rect,
                                byRoundingCorners: [.topLeft, .topRight],
                                cornerRadii: CGSize(width: cornerRadius, height: cornerRadius))
-        shadowLayer.path = path.cgPath
-        shadowLayer.fillColor = color?.cgColor
+        backgroundLayer.path = path.cgPath
+        backgroundLayer.fillColor = color?.cgColor
+		
        if shadowHidden == false {
-            shadowLayer.shadowPath = shadowLayer.path
-            shadowLayer.shadowColor = shadowColor.cgColor
-            shadowLayer.shadowOffset = shadowOffset
-            shadowLayer.shadowOpacity = shadowOpacity
-            shadowLayer.shadowRadius = shadowRadius
+            layer.shadowColor = shadowColor.cgColor
+            layer.shadowOffset = shadowOffset
+            layer.shadowOpacity = shadowOpacity
+            layer.shadowRadius = shadowRadius
        }
-        return shadowLayer
+    }
+
+    private func updateContentViewMask() {
+        if #available(iOS 11, *) {
+            // Don't use `contentView.clipToBounds` because it prevents content view from expanding the height of a subview of it
+            // for the bottom overflow like Auto Layout settings of UIVisualEffectView in Main.storyborad of Example/Maps.
+            // Because the bottom of contentView must be fit to the bottom of a screen to work the `safeLayoutGuide` of a content VC.
+            let maskLayer = CAShapeLayer()
+            var rect = bounds
+            rect.size.height += bottomOverflow
+            let path = UIBezierPath(roundedRect: rect,
+                                    byRoundingCorners: [.topLeft, .topRight],
+                                    cornerRadii: CGSize(width: cornerRadius, height: cornerRadius))
+            maskLayer.path = path.cgPath
+            contentView.layer.mask = maskLayer
+        } else {
+            // Don't use `contentView.layer.mask` because of a UIVisualEffectView issue in iOS 10, https://forums.developer.apple.com/thread/50854
+            // Instead, a user can mask the content view manually in an application.
+        }
+    }
+
+    func set(bottomOverflow: CGFloat) {
+        self.bottomOverflow = bottomOverflow
+        updateLayers()
+        updateContentViewMask()
+    }
+
+
+    func add(childView: UIView) {
+        contentView.addSubview(childView)
+        childView.frame = contentView.bounds
+        childView.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            childView.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 0.0),
+            childView.leftAnchor.constraint(equalTo: contentView.leftAnchor, constant: 0.0),
+            childView.rightAnchor.constraint(equalTo: contentView.rightAnchor, constant: 0.0),
+            childView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: 0.0),
+            ])
    }
 }
@@ -24,8 +24,14 @@ public class GrabberHandleView: UIView {
        self.backgroundColor = Default.barColor
        render()
    }
+
    private func render() {
        self.layer.masksToBounds = true
        self.layer.cornerRadius = frame.size.height * 0.5
    }
+
+    public override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
+        let view = super.hitTest(point, with: event)
+        return view == self ? nil : view
+    }
 }
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>1.1.0</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 </dict>
@@ -50,6 +50,8 @@ protocol SideLayoutGuideProvider {
 extension UIView: SideLayoutGuideProvider {}
 extension UILayoutGuide: SideLayoutGuideProvider {}

+// The reason why UIView has no extensions of safe area insets and top/bottom guides
+// is for iOS10 compat.
 extension UIView {
    var sideLayoutGuide: SideLayoutGuideProvider {
        if #available(iOS 11.0, *) {
@@ -1,5 +1,12 @@
+[![Build Status](https://travis-ci.org/SCENEE/FloatingPanel.svg?branch=master)](https://travis-ci.org/SCENEE/FloatingPanel)
+[![Version](https://img.shields.io/cocoapods/v/FloatingPanel.svg)](https://cocoapods.org/pods/FloatingPanel)
+[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
+[![Platform](https://img.shields.io/cocoapods/p/FloatingPanel.svg)](https://cocoapods.org/pods/FloatingPanel)
+[![Swift 4.2](https://img.shields.io/badge/Swift-4.2-orange.svg?style=flat)](https://swift.org/)
+
 #  FloatingPanel

+
 FloatingPanel is a simple and easy-to-use UI component for a new interface introduced in Apple Maps, Shortcuts and Stocks app.
 The new interface displays the related contents and utilities in parallel as a user wants.

@@ -8,13 +15,40 @@ The new interface displays the related contents and utilities in parallel as a u

 ![Maps(Landscape)](https://github.com/SCENEE/FloatingPanel/blob/master/assets/maps-landscape.gif)

+<!-- TOC -->
+
+- [Features](#features)
+- [Requirements](#requirements)
+- [Installation](#installation)
+  - [CocoaPods](#cocoapods)
+  - [Carthage](#carthage)
+- [Getting Started](#getting-started)
+- [Usage](#usage)
+  - [Customize the layout with `FloatingPanelLayout` protocol](#customize-the-layout-with-floatingpanellayout-protocol)
+    - [Change the initial position and height](#change-the-initial-position-and-height)
+    - [Support your landscape layout](#support-your-landscape-layout)
+  - [Customize the behavior with `FloatingPanelBehavior` protocol](#customize-the-behavior-with-floatingpanelbehavior-protocol)
+    - [Modify your floating panel's interaction](#modify-your-floating-panels-interaction)
+  - [Use a custom grabber handle](#use-a-custom-grabber-handle)
+  - [Add tap gestures to the surface or backdrop views](#add-tap-gestures-to-the-surface-or-backdrop-views)
+  - [Create an additional floating panel for a detail](#create-an-additional-floating-panel-for-a-detail)
+  - [Move a position with an animation](#move-a-position-with-an-animation)
+  - [Work your contents together with a floating panel behavior](#work-your-contents-together-with-a-floating-panel-behavior)
+- [Notes](#notes)
+  - ['Show' or 'Show Detail' Segues from `FloatingPanelController`'s content view controller](#show-or-show-detail-segues-from-floatingpanelcontrollers-content-view-controller)
+  - [FloatingPanelSurfaceView's issue on iOS 10](#floatingpanelsurfaceviews-issue-on-ios-10)
+- [Author](#author)
+- [License](#license)
+
+<!-- /TOC -->
+
 ## Features

 - [x] Simple container view controller
 - [x] Fluid animation and gesture handling
 - [x] Scroll view tracking
 - [x] Common UI elements: Grabber handle, Backdrop and Surface rounding corners
- [x] 2 or 3 anchor positions(full, half, tip)
+- [x] 1~3 anchor positions(full, half, tip)
 - [x] Layout customization for all trait environments(i.e. Landscape orientation support)
 - [x] Behavior customization
 - [x] Free from common issues of Auto Layout and gesture handling
@@ -65,14 +99,14 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
        // Assign self as the delegate of the controller.
        fpc.delegate = self // Optional

-        // Add a content view controller.
+        // Set a content view controller.
        let contentVC = ContentViewController()
-        fpc.show(contentVC, sender: nil)
+        fpc.set(contentViewController: contentVC)

        // Track a scroll view(or the siblings) in the content view controller.
        fpc.track(scrollView: contentVC.tableView)

-        // Add the views managed by the `FloatingPanelController` object to self.view.
+        // Add and show the views managed by the `FloatingPanelController` object to self.view.
        fpc.addPanel(toParent: self)
    }

@@ -87,50 +121,41 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {

 ## Usage

-### Move a positon with an animation
+### Customize the layout with `FloatingPanelLayout` protocol

-Move a floating panel to the top and middle of a view while opening and closeing a search bar like Apple Maps.
-
-```swift
-    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
-        ...
-        fpc.move(to: .half, animated: true)
-    }
-
-    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
-        ...
-        fpc.move(to: .full, animated: true)
-    }
-```
-
-### Make your contents correspond with FloatingPanel behavior
-
-```swift
-class ViewController: UIViewController, FloatingPanelControllerDelegate {
-    ...
-    func floatingPanelWillBeginDragging(_ vc: FloatingPanelController) {
-        if vc.position == .full {
-            searchVC.searchBar.showsCancelButton = false
-            searchVC.searchBar.resignFirstResponder()
-        }
-    }
-
-    func floatingPanelDidEndDragging(_ vc: FloatingPanelController, withVelocity velocity: CGPoint, targetPosition: FloatingPanelPosition) {
-        if targetPosition != .full {
-            searchVC.hideHeader()
-        }
-    }
-    ...
-}
-```
-
-### Support your landscape layout with a `FloatingPanelLayout` object
+#### Change the initial position and height

 ```swift
 class ViewController: UIViewController, FloatingPanelControllerDelegate {
    ...
    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
-        return (newCollection.verticalSizeClass == .compact) ? FloatingPanelLandscapeLayout() : nil
+        return MyFloatingPanelLayout()
+    }
+    ...
+}
+
+class MyFloatingPanelLayout: FloatingPanelLayout {
+    public var initialPosition: FloatingPanelPosition {
+        return .tip
+    }
+
+    public func insetFor(position: FloatingPanelPosition) -> CGFloat? {
+        switch position {
+            case .full: return 16.0 // A top inset from safe area
+            case .half: return 216.0 // A bottom inset from the safe area
+            case .tip: return 44.0 // A bottom inset from the safe area
+        }
+    }
+}
+```
+
+#### Support your landscape layout
+
+```swift
+class ViewController: UIViewController, FloatingPanelControllerDelegate {
+    ...
+    func floatingPanel(_ vc: FloatingPanelController, layoutFor newCollection: UITraitCollection) -> FloatingPanelLayout? {
+        return (newCollection.verticalSizeClass == .compact) ? FloatingPanelLandscapeLayout() : nil // Returning nil indicates to use the default layout
    }
    ...
 }
@@ -139,7 +164,7 @@ class FloatingPanelLandscapeLayout: FloatingPanelLayout {
    public var initialPosition: FloatingPanelPosition {
        return .tip
    }
-    public var supportedPositions: [FloatingPanelPosition] {
+    public var supportedPositions: Set<FloatingPanelPosition> {
        return [.full, .tip]
    }

@@ -160,7 +185,9 @@ class FloatingPanelLandscapeLayout: FloatingPanelLayout {
 }
 ```

-### Modify your floating panel's interaction with a `FloatingPanelBehavior` object
+### Customize the behavior with `FloatingPanelBehavior` protocol
+
+#### Modify your floating panel's interaction

 ```swift
 class ViewController: UIViewController, FloatingPanelControllerDelegate {
@@ -177,7 +204,7 @@ class FloatingPanelStocksBehavior: FloatingPanelBehavior {
        return 15.0
    }

-    func interactionAnimator(to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
+    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
        let damping = self.damping(with: velocity)
        let springTiming = UISpringTimingParameters(dampingRatio: damping, initialVelocity: velocity)
        return UIViewPropertyAnimator(duration: 0.5, timingParameters: springTiming)
@@ -186,6 +213,45 @@ class FloatingPanelStocksBehavior: FloatingPanelBehavior {
 }
 ```

+### Use a custom grabber handle
+
+```swift
+class ViewController: UIViewController {
+    ...
+    override func viewDidLoad() {
+        ...
+        let myGrabberHandleView = MyGrabberHandleView()
+        fpc.surfaceView.grabberHandle.isHidden = true
+        fpc.surfaceView.addSubview(myGrabberHandleView)
+    }
+    ...
+}
+```
+
+### Add tap gestures to the surface or backdrop views
+
+```swift
+class ViewController: UIViewController, FloatingPanelControllerDelegate {
+    ...
+    override func viewDidLoad() {
+        ...
+        surfaceTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleSurface(tapGesture:)))
+        fpc.surfaceView.addGestureRecognizer(surfaceTapGesture)
+
+        backdropTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleBackdrop(tapGesture:)))
+        fpc.backdropView.addGestureRecognizer(backdropTapGesture)
+
+        surfaceTapGesture.isEnabled = (fpc.position == .tip)
+        ...
+    }
+    ...
+    // Enable `surfaceTapGesture` only at `tip` position
+    func floatingPanelDidChangePosition(_ vc: FloatingPanelController) {
+        surfaceTapGesture.isEnabled = (vc.position == .tip)
+    }
+}
+```
+
 ### Create an additional floating panel for a detail

 ```swift
@@ -198,7 +264,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
        self.searchPanelVC = FloatingPanelController()

        let searchVC = SearchViewController()
-        self.searchPanelVC.show(searchVC, sender: nil)
+        self.searchPanelVC.set(contentViewController: searchVC)
        self.searchPanelVC.track(scrollView: contentVC.tableView)

        self.searchPanelVC.addPanel(toParent: self)
@@ -207,7 +273,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
        self.detailPanelVC = FloatingPanelController()

        let contentVC = ContentViewController()
-        self.detailPanelVC.show(contentVC, sender: nil)
+        self.detailPanelVC.set(contentViewController: contentVC)
        self.detailPanelVC.track(scrollView: contentVC.scrollView)

        self.detailPanelVC.addPanel(toParent: self)
@@ -216,6 +282,93 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
 }
 ```

+### Move a position with an animation
+
+In the following example, I move a floating panel to full or half position while opening or closing a search bar like Apple Maps.
+
+```swift
+    func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
+        ...
+        fpc.move(to: .half, animated: true)
+    }
+
+    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
+        ...
+        fpc.move(to: .full, animated: true)
+    }
+```
+
+### Work your contents together with a floating panel behavior
+
+```swift
+class ViewController: UIViewController, FloatingPanelControllerDelegate {
+    ...
+    func floatingPanelWillBeginDragging(_ vc: FloatingPanelController) {
+        if vc.position == .full {
+            searchVC.searchBar.showsCancelButton = false
+            searchVC.searchBar.resignFirstResponder()
+        }
+    }
+
+    func floatingPanelDidEndDragging(_ vc: FloatingPanelController, withVelocity velocity: CGPoint, targetPosition: FloatingPanelPosition) {
+        if targetPosition != .full {
+            searchVC.hideHeader()
+        }
+    }
+    ...
+}
+```
+
+## Notes
+
+### 'Show' or 'Show Detail' Segues from `FloatingPanelController`'s content view controller
+
+'Show' or 'Show Detail' segues from a content view controller will be managed by a view controller(hereinafter called 'master VC') adding a floating panel. Because a floating panel is just a subview of the master VC.
+
+`FloatingPanelController` has no way to manage a stack of view controllers like `UINavigationController`. If so, it would be so complicated and the interface will become `UINavigationController`. This component should not have the responsibility to manage the stack.
+
+By the way, a content view controller can present a view controller modally with `present(_:animated:completion:)` or 'Present Modally' segue.
+
+However, sometimes you want to show a destination view controller of 'Show' or 'Show Detail' segue with another floating panel. It's possible to override `show(_:sender)` of the master VC!
+
+Here is an example.
+
+```swift
+class ViewController: UIViewController {
+    var fpc: FloatingPanelController!
+    var secondFpc: FloatingPanelController!
+
+    ...
+    override func show(_ vc: UIViewController, sender: Any?) {
+        secondFpc = FloatingPanelController()
+
+        secondFpc.set(contentViewController: vc)
+
+        secondFpc.addPanel(toParent: self)
+    }
+    ...
+}
+```
+
+A `FloatingPanelController` object proxies an action for `show(_:sender)` to the master VC. That's why the master VC can handle a destination view controller of a 'Show' or 'Show Detail' segue and you can hook `show(_:sender)` to show a secondally floating panel set the destination view controller to the content.
+
+It's a great way to decouple between a floating panel and the content VC.
+
+### FloatingPanelSurfaceView's issue on iOS 10
+
+* On iOS 10,   `FloatingPanelSurfaceView.cornerRadius` isn't not automatically masked with the top rounded corners  because of UIVisualEffectView issue. See https://forums.developer.apple.com/thread/50854. 
+So you need to draw top rounding corners of your content.  Here is an example in Examples/Maps.
+```swift
+override func viewDidLayoutSubviews() {
+    super.viewDidLayoutSubviews()
+    if #available(iOS 10, *) {
+        visualEffectView.layer.cornerRadius = 9.0
+        visualEffectView.clipsToBounds = true
+    }
+}
+```
+* If you sets clear color to `FloatingPanelSurfaceView.backgroundColor`, please note the bottom overflow of your content on bouncing at full position. To prevent it, you need to expand your content. For example, See Example/Maps's Auto Layout settings of UIVisualEffectView in Main.storyborad.
+
 ## Author

 Shin Yamamoto <shin@scenee.com>
Author	SHA1	Message	Date
Shin Yamamoto	0bb8342873	Release v1.2.2	2018-12-03 09:25:09 +09:00
Shin Yamamoto	d4f2a88fdf	Merge pull request #71 from SCENEE/fix-bugs Fix scroll tracking bugs	2018-12-01 15:45:41 +09:00
Shin Yamamoto	af45d39841	Fix panning at grabber Area	2018-12-01 12:36:47 +09:00
Shin Yamamoto	66f5b0b210	Fix an invalid content offset on height change	2018-12-01 11:08:33 +09:00
Shin Yamamoto	4a3b79f1b4	Update README	2018-11-29 13:06:27 +09:00
Shin Yamamoto	12a100def8	Merge pull request #68 from SCENEE/release-1.2.1 Release v1.2.1	2018-11-26 13:20:24 +09:00
Shin Yamamoto	47971f607a	Release v1.2.1	2018-11-26 09:40:14 +09:00
Shin Yamamoto	03a4d342a3	Merge pull request #66 from Galeas/fix-remove-backdrop-view-on-dismiss Fix remove backdrop view on dismiss	2018-11-25 11:11:22 +09:00
Evgeniy Branitsky	4f5abfefec	Removing backdrop view	2018-11-24 11:21:56 +03:00
Shin Yamamoto	e1ee3c06e8	Merge pull request #62 from SCENEE/feat-make-animator-interruptible Make the animated interaction interruptible	2018-11-22 20:21:11 +09:00
Shin Yamamoto	17ba704472	Make the animated interaction interruptible	2018-11-22 14:26:18 +09:00
Shin Yamamoto	e5391fa1f4	Merge pull request #61 from SCENEE/improve-delegate Improve delegate	2018-11-22 13:54:02 +09:00
Shin Yamamoto	c0647017b5	Add FloatingPanelControllerDelegate.floatingPanelDidChangePosition(_:)	2018-11-21 09:10:50 +09:00
Shin Yamamoto	3686bb4b44	Clean up code for scrollGestureRecognizers	2018-11-20 11:08:23 +09:00
Shin Yamamoto	76c8ca4b20	Merge pull request #56 from SCENEE/fix-gesture-handling Fix the gesture handling	2018-11-20 11:07:14 +09:00
Shin Yamamoto	c53e64027b	Merge pull request #45 from SCENEE/release-1.2.0 Release v1.2.0	2018-11-17 10:12:10 +09:00
Shin Yamamoto	c15d236320	Release v1.2.0	2018-11-17 09:40:34 +09:00
Shin Yamamoto	281504c9c6	Fix the gesture handling * Fix a detection of a long press gesture in content VC * Fix a SwipeActionPanGesture is not working in the tracking scroll * Update DebugTableViewController to test it	2018-11-17 09:09:07 +09:00
Shin Yamamoto	eaf0ebe62b	Merge pull request #52 from futuretap/master Fixed infinite recursion in FloatingPanel.responds(to:)	2018-11-16 10:25:34 +09:00
Ortwin Gentz	a4a08662be	Fixed infinite recursion in FloatingPanel.responds(to:) if track(scrollView:) is called twice	2018-11-15 22:11:40 +01:00
Shin Yamamoto	e8a0ffeca5	Merge pull request #48 from SCENEE/fix-scrolling-short-contents Fix scrolling short contents	2018-11-16 00:19:41 +09:00
Shin Yamamoto	1399cc6fbd	Fix a layout bug on orientation changed	2018-11-15 10:33:46 +09:00
Shin Yamamoto	8b44ad4b08	Fix unexpected bounciness on short contents This issue happens in dragging from half to full position.	2018-11-15 10:33:46 +09:00
Shin Yamamoto	e4a1a6e293	Improve Scroll tracking(TableView) sample	2018-11-15 10:33:46 +09:00
Shin Yamamoto	ba00786b91	Merge pull request #51 from futuretap/improved-shadow Improved shadow, not darkening content background	2018-11-15 09:33:55 +09:00
Ortwin Gentz	5e7529d1e6	Improved shadow, not darkening content background By removing shadowPath and putting the shadow directly onto the surface view layer instead of a sublayer, the shadow doesn't affect the content view background	2018-11-14 15:33:38 +01:00
Shin Yamamoto	e75108113a	Fix comment	2018-11-14 20:16:49 +09:00
Shin Yamamoto	6d51b0d420	Fix failure requirements for scroll view's gesture recognizers	2018-11-14 11:50:41 +09:00
Shin Yamamoto	c3b199755e	Add short contents scroll sample	2018-11-14 11:50:41 +09:00
Shin Yamamoto	d57d8e9da5	Fix scrolling contents shorter than scroll view size	2018-11-14 11:38:23 +09:00
Shin Yamamoto	d24e1c5355	Prevent unexpected assertion failure The assertion always fails on orientation change from landspace to portrait with the default layouts.	2018-11-14 11:18:54 +09:00
Shin Yamamoto	95c94560be	Merge pull request #44 from SCENEE/fix-scroll-indicator-hidden Fix scroll indicator hidden	2018-11-14 07:48:50 +09:00
Shin Yamamoto	7b4ed52eb1	Add comments and fix typos	2018-11-12 13:35:36 +09:00
Shin Yamamoto	cab8c15474	Fix scroll view indicators hidden at the top once	2018-11-12 13:35:36 +09:00
Shin Yamamoto	72f5d59a75	Merge pull request #43 from SCENEE/add-update-layout-api Add FloatingPanelController.updateLayout()	2018-11-12 13:33:25 +09:00
Shin Yamamoto	273adc8d1b	Fix FloatingPanel's initial state value	2018-11-12 13:03:54 +09:00
Shin Yamamoto	5f0f28cb0e	Add update layout sample	2018-11-12 13:03:54 +09:00
Shin Yamamoto	e1c9fe120b	Add FloatingPanelController.updateLayout()	2018-11-12 13:03:54 +09:00
Shin Yamamoto	630580beb6	Merge pull request #38 from SCENEE/fix-scroll-view-bounce Fix scroll top bounce bugs	2018-11-09 10:20:35 +09:00
Shin Yamamoto	68a2c43580	Merge pull request #37 from SCENEE/fix-orientation-change-on-removal Fix orientation change on removal	2018-11-09 10:20:20 +09:00
Shin Yamamoto	817fce6d10	Fix scroll top bounce bugs Disable scroll top bouncing if a user scroll down contents(no deceleration) and the scroll offset Y is less than 10.0, instead of the velocity condition(greater than 2500.0). This change prevents potential bugs on scroll bouncing so that the scroll view tracking is more robust.	2018-11-08 11:32:54 +09:00
Shin Yamamoto	6e85afaee6	Update checkLayoutConsistance	2018-11-08 09:52:04 +09:00
Shin Yamamoto	98c5096f67	Merge pull request #36 from SCENEE/fix-scroll-jump-after-scroll-animation Fix scrollview jumps after it moved programmatically	2018-11-08 09:28:17 +09:00
Shin Yamamoto	57c7ced59d	Add RemovablePanelLandscapeLayout	2018-11-07 13:38:35 +09:00
Shin Yamamoto	73e6d38344	Introduce FloatingPanelBehavior.redirectionalProgress(_:from:to:)	2018-11-07 13:38:35 +09:00
Shin Yamamoto	bd128bf8b0	Fix removal interaction	2018-11-07 13:11:38 +09:00
Shin Yamamoto	16e8808ce5	Modify the backdrop default behavior	2018-11-07 11:18:05 +09:00
Shin Yamamoto	f4088fcb6b	Fix backdrop handling	2018-11-07 11:06:18 +09:00
Shin Yamamoto	63b8aa24e8	Improve removal interaction impl	2018-11-07 10:54:28 +09:00
Shin Yamamoto	5744491606	Fix the surface height on orientation change	2018-11-07 10:45:32 +09:00
Shin Yamamoto	f5ecbef724	Add 'Animate Scroll' button in Samples app	2018-11-07 10:44:35 +09:00
Shin Yamamoto	f176a2c70e	Fix scrollview jumps after it moved programmatically	2018-11-07 09:49:00 +09:00
Shin Yamamoto	51c124d3e4	Merge pull request #33 from SCENEE/fix-unexpected-stop-deleration Reset 'stopScrollDeceleration' on animation finish	2018-11-07 09:19:16 +09:00
Shin Yamamoto	5f6c97336e	Merge pull request #34 from ffittschen/fix-moving-without-scroll-top Fix moving floating panel without scrolling to top of scroll view	2018-11-07 09:18:59 +09:00
Florian Fittschen	894eb77d5d	Revert scrollview offset changes	2018-11-06 10:01:57 +01:00
Shin Yamamoto	d1b5a1f517	Merge pull request #29 from SCENEE/fix-navigation-bar-problem Fix navigation bar problem	2018-11-06 10:10:45 +09:00
Shin Yamamoto	300d5f8d91	Reset 'stopScrollDeceleration' on animation finish	2018-11-06 10:04:41 +09:00
Shin Yamamoto	bbc885f783	Merge pull request #32 from SCENEE/fix-moving-without-scroll-top Fix a bug in moving interaction from full position	2018-11-06 09:19:18 +09:00
Florian Fittschen	6badeeebe5	Fix moving without scrolling to top	2018-11-05 11:15:54 +01:00
Shin Yamamoto	e282806422	Merge pull request #31 from SCENEE/fix-removal-interaction Fix the removal interaction	2018-11-05 18:22:08 +09:00
Shin Yamamoto	629807584b	Fix the removal interaction	2018-11-05 08:50:39 +09:00
Shin Yamamoto	922c0e53d2	Fix a bug in moving interaction from full position The floating panel must work well if the tracking scroll view's content offset isn't the top.	2018-11-04 11:55:30 +09:00
Shin Yamamoto	ec9fcd473a	Fix the surface view height on non traslucent nav bar	2018-11-02 19:51:06 +09:00
Shin Yamamoto	de9f415ded	Observe parent's view.safeAreaInsets	2018-11-02 17:00:34 +09:00
Shin Yamamoto	fd5ca2c2fc	Clean up FloatingPanelSurfaceView and FloatingPanelLayout	2018-11-02 16:19:53 +09:00
Shin Yamamoto	c0b9ddc4a3	Revert a sample code in README to prevent a confusion for v1.1.0	2018-11-02 12:19:49 +09:00
Shin Yamamoto	43f33083f1	Fix README	2018-11-02 12:17:44 +09:00
Shin Yamamoto	2b483e6adb	Merge pull request #21 from SCENEE/fix-show-segue-problem Fix show segue problem	2018-11-02 12:12:50 +09:00
Shin Yamamoto	0cf0f42ca4	Replace FloatingPanelController.show(_:sender:) with the set(contentViewController:) And add a sample code to test show(_:sender:) in ContentVC. `FloatingPanelController.show(_:sender:)` can block 'Show' segue in a content view controller. 'Show' segue should not be handled by 'FloatingPanelController`. So I replace this method.	2018-11-02 10:33:12 +09:00
Shin Yamamoto	c9ccea3f84	Merge pull request #27 from SCENEE/fix-backdrop-bugs Fix backdrop bugs	2018-11-02 10:29:27 +09:00
Shin Yamamoto	c2dee28132	Improve FloatingPanelSurfaceView.bottomOverflow handling	2018-11-02 10:07:49 +09:00
Shin Yamamoto	4fd4709182	Fix FloatingPanelSurfaceView.backgroundColor	2018-11-02 10:07:49 +09:00
Shin Yamamoto	00ccc0eb6a	Fix backdrop alpha issue	2018-11-02 10:07:49 +09:00
Shin Yamamoto	ed91f51482	Merge pull request #25 from SCENEE/add-removable-interaction Add a removable interaction	2018-11-02 09:42:57 +09:00
Shin Yamamoto	c2cea95aa5	Clean up FloatingPanelLayout consistance check	2018-11-02 09:17:58 +09:00
Shin Yamamoto	274027cb64	Allow one supported position	2018-11-02 09:17:58 +09:00
Shin Yamamoto	b4a26344d9	Add a removable interaction	2018-11-02 09:17:58 +09:00
Shin Yamamoto	580c708788	Merge pull request #24 from SCENEE/add-preconditions-of-parent Add and Update preconditions of the parent VC	2018-11-01 12:20:50 +09:00
Shin Yamamoto	f4d6380094	Add and Update preconditions of the parent VC	2018-11-01 11:19:32 +09:00
Shin Yamamoto	e44dc06a61	Merge pull request #18 from kingcos/master Add missing constraints of the title	2018-10-29 22:09:59 +09:00
kingcos	b6184f5b41	Add missing constraint of the title	2018-10-29 11:16:59 +08:00
Shin Yamamoto	e6fc2f397e	Merge pull request #17 from SCENEE/release-1.1.0 Release v1.1.0	2018-10-29 08:38:12 +09:00
Shin Yamamoto	60d0b62675	Release v1.1.0	2018-10-28 09:00:50 +09:00
Shin Yamamoto	7a8eb1833f	Merge pull request #14 from SCENEE/improve-public-interface Improve public interface	2018-10-28 08:59:55 +09:00
Shin Yamamoto	6367b76b9d	Fix failure requirements of the pan gesture	2018-10-28 08:36:31 +09:00
Shin Yamamoto	977b685071	Modify a custom landscape layout for Maps	2018-10-28 08:36:31 +09:00
Shin Yamamoto	b97d418158	Change the default landscape layout	2018-10-28 08:36:31 +09:00
Shin Yamamoto	0e4cb372d5	Add a sample code to test FloatingPanelController.move(to:animated:)	2018-10-28 08:36:31 +09:00
Shin Yamamoto	2ec7576ae9	Improve FloatingPanelBehavior protocol present/dismiss words should be used for modality. add/remove words are appropriate for them.	2018-10-28 08:36:31 +09:00
Shin Yamamoto	c4bf4c3067	Open the pan gesture recognizer of FloatingPanelController	2018-10-28 06:41:37 +09:00
Shin Yamamoto	ea9bbcad27	Check consistance of FloatingPanelLayout	2018-10-28 06:41:37 +09:00
Shin Yamamoto	71be1f2ed5	Change the type of 'supportedPositions' from Array to Set	2018-10-28 06:41:37 +09:00
Shin Yamamoto	349bb91c6c	Improve the default impls of FloatingPanelLayout methods	2018-10-28 06:41:37 +09:00
Shin Yamamoto	52da673358	Fix README	2018-10-28 06:41:37 +09:00
Shin Yamamoto	ce0b9d1413	Merge pull request #16 from 0xflotus/patch-1 fixed some errors	2018-10-28 06:34:55 +09:00
0xflotus	8ef332f3e5	fixed some errors	2018-10-27 21:23:06 +02:00
Shin Yamamoto	a4002f83c1	Merge pull request #13 from SCENEE/fix-gesture-handling Fix untracked scroll view's freezing in a floating panel	2018-10-27 20:49:56 +09:00
Shin Yamamoto	64d756d8a9	Add a nested scroll view's sample	2018-10-27 16:39:22 +09:00
Shin Yamamoto	187fe47268	Fix untracked scroll view's freezing in a floating panel	2018-10-27 15:16:08 +09:00
Shin Yamamoto	060f3a0b1b	Merge pull request #11 from futuretap/master Fixed some typos and language in comments	2018-10-27 09:55:53 +09:00
Ortwin Gentz	4dcc5bc564	Fixed some typos and language in comments	2018-10-26 15:30:11 +02:00
Shin Yamamoto	52efac6643	Fix Usage contents in README	2018-10-26 18:39:41 +09:00
Shin Yamamoto	97c91fb7aa	Merge pull request #10 from SCENEE/support-travis-ci Support Travis CI	2018-10-26 15:22:59 +09:00
Shin Yamamoto	efcc598550	Add 'Build Status' shield in README	2018-10-26 15:00:02 +09:00
Shin Yamamoto	fd5fc1f485	Add travis yml	2018-10-26 15:00:02 +09:00
Shin Yamamoto	f713d4057f	Merge pull request #9 from SCENEE/fix-surface-view-height Fix surface view height	2018-10-26 14:29:50 +09:00
Shin Yamamoto	4ebbea8e86	Fix FloatingPanelLayout.{topInteractionBuffer,bottomInteractionBuffer}	2018-10-26 14:27:40 +09:00
Shin Yamamoto	5515e6f788	Update README - Add shields - Add TOC - Update Usage section - Revise the contents	2018-10-26 14:27:40 +09:00
Shin Yamamoto	65a6315f1b	Fix the table view height in Examples/Maps The bottom of a scroll view tracked by a floating panel controller must align the bottom of a screen when `FloatingPanelController.contentInsetAdjustmentBehavior` is set to `always`.	2018-10-26 14:27:40 +09:00
Shin Yamamoto	aafe32bb3d	Fix a critical bug on 2(full and half) anchor positions	2018-10-26 14:27:40 +09:00
Shin Yamamoto	1c6c783dbe	Add sample codes in Samples app to test a floating panel in TabBar	2018-10-26 14:27:40 +09:00
Shin Yamamoto	1e322f47d4	Update doc comment	2018-10-26 14:27:40 +09:00
Shin Yamamoto	37196abe77	Improve updating the shadow layer of the surface	2018-10-24 12:53:27 +09:00
Shin Yamamoto	e476cf5ce4	Fix the initial height of DebugTableViewController	2018-10-24 12:53:27 +09:00
Shin Yamamoto	dc4b1e7a90	Escape UIVisualEffectView problem on iOS10 The floating panel controller can't resolve this issue, but the workaround is much easy in the content view controller. So I stop auto-rounding corners in content view on iOS 10.	2018-10-24 12:53:27 +09:00
Shin Yamamoto	95d188d5f1	Match the bottoms of the surface view and a device bottom	2018-10-24 08:16:42 +09:00
Shin Yamamoto	4dd60ca855	Update Samples App	2018-10-23 14:20:39 +09:00
Shin Yamamoto	5067917295	Fix README	2018-10-23 10:22:48 +09:00
Shin Yamamoto	e620ef27ee	Merge pull request #2 from SCENEE/enhance-scroll-view-tracking Enhance scroll view handling	2018-10-23 09:58:30 +09:00