Release v1.0.0

- Improve locking/unlocking scroll view to prevent scroll bouncing
and showing a scroll indicator unexpectedly.
- Handle scrollview.panGestureRecognizer change
- Handle scrollView.delegate intermediately.

Examples/Maps/Maps.xcodeproj/project.pbxproj

@@ -303,7 +303,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = Maps/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -322,7 +322,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = Maps/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = (

Examples/Maps/Maps/AppDelegate.swift

@@ -3,7 +3,7 @@
 //  Maps
 //
 //  Created by Shin Yamamoto on 2018/10/09.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit

Examples/Maps/Maps/ViewController.swift

@@ -1,5 +1,5 @@
 //
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -36,7 +36,7 @@ class ViewController: UIViewController, MKMapViewDelegate, UISearchBarDelegate,
     override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
         //  Add FloatingPanel to a view with animation.
-        fpc.add(toParent: self, animated: true)
+        fpc.addPanel(toParent: self, animated: true)
 
         // Must be here
         searchVC.searchBar.delegate = self

Examples/Samples/Samples.xcodeproj/project.pbxproj

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+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		545DBA1321511E6400CA77B8 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = Sources/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingPanelSample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		545DBA1421511E6400CA77B8 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = "";
+				INFOPLIST_FILE = Sources/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingPanelSample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
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+			name = Release;
+		};
+		545DBA1621511E6400CA77B8 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = Tests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingModalSampleTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Samples.app/Samples";
+			};
+			name = Debug;
+		};
+		545DBA1721511E6400CA77B8 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = Tests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingModalSampleTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Samples.app/Samples";
+			};
+			name = Release;
+		};
+		545DBA1921511E6400CA77B8 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				INFOPLIST_FILE = UITests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingModalSampleUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = FloatingModalSample;
+			};
+			name = Debug;
+		};
+		545DBA1A21511E6400CA77B8 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				INFOPLIST_FILE = UITests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.scenee.FloatingModalSampleUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = FloatingModalSample;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		545DB9E521511E6300CA77B8 /* Build configuration list for PBXProject "Samples" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				545DBA1021511E6400CA77B8 /* Debug */,
+				545DBA1121511E6400CA77B8 /* Release */,
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+			defaultConfigurationName = Release;
+		};
+		545DBA1221511E6400CA77B8 /* Build configuration list for PBXNativeTarget "Samples" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				545DBA1321511E6400CA77B8 /* Debug */,
+				545DBA1421511E6400CA77B8 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		545DBA1521511E6400CA77B8 /* Build configuration list for PBXNativeTarget "SamplesTests" */ = {
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+			buildConfigurations = (
+				545DBA1621511E6400CA77B8 /* Debug */,
+				545DBA1721511E6400CA77B8 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		545DBA1821511E6400CA77B8 /* Build configuration list for PBXNativeTarget "SamplesUITests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
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+				545DBA1A21511E6400CA77B8 /* Release */,
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+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 545DB9E221511E6300CA77B8 /* Project object */;
+}

Examples/Samples/Samples.xcodeproj/xcshareddata/xcschemes/Samples.xcscheme

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1000"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "545DB9E921511E6300CA77B8"
+               BuildableName = "Samples.app"
+               BlueprintName = "Samples"
+               ReferencedContainer = "container:Samples.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "545DB9E921511E6300CA77B8"
+            BuildableName = "Samples.app"
+            BlueprintName = "Samples"
+            ReferencedContainer = "container:Samples.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "545DB9E921511E6300CA77B8"
+            BuildableName = "Samples.app"
+            BlueprintName = "Samples"
+            ReferencedContainer = "container:Samples.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "545DB9E921511E6300CA77B8"
+            BuildableName = "Samples.app"
+            BlueprintName = "Samples"
+            ReferencedContainer = "container:Samples.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Examples/Samples/Sources/AppDelegate.swift

@@ -0,0 +1,11 @@
+//
+//  Created by Shin Yamamoto on 2018/09/18.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+    var window: UIWindow?
+}

Examples/Samples/Sources/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Samples/Sources/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

Examples/Samples/Sources/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,29 @@
+<?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" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

Examples/Samples/Sources/Base.lproj/Main.storyboard

@@ -0,0 +1,227 @@
+<?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">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Navigation Controller-->
+        <scene sceneID="Cjh-iX-VQw">
+            <objects>
+                <navigationController id="RoN-h0-uBD" sceneMemberID="viewController">
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="hNW-5m-Omi">
+                        <rect key="frame" x="0.0" y="20" width="375" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <connections>
+                        <segue destination="jF4-A0-Eq6" kind="relationship" relationship="rootViewController" id="W9V-or-flQ"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="lKu-or-aPl" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-705" y="27"/>
+        </scene>
+        <!--Samples-->
+        <scene sceneID="35L-Gs-Vts">
+            <objects>
+                <viewController id="jF4-A0-Eq6" customClass="SampleListViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Smh-Bd-AAc">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="7IS-PU-x0P">
+                                <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <prototypes>
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" reuseIdentifier="Cell" textLabel="M0G-C8-hAO" style="IBUITableViewCellStyleDefault" id="ySY-oA-g81">
+                                        <rect key="frame" x="0.0" y="28" width="375" height="44"/>
+                                        <autoresizingMask key="autoresizingMask"/>
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="ySY-oA-g81" id="sXB-nH-2g2">
+                                            <rect key="frame" x="0.0" y="0.0" width="375" height="43.5"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <subviews>
+                                                <label opaque="NO" multipleTouchEnabled="YES" contentMode="left" insetsLayoutMarginsFromSafeArea="NO" text="Title" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" id="M0G-C8-hAO">
+                                                    <rect key="frame" x="15" y="0.0" width="345" height="43.5"/>
+                                                    <autoresizingMask key="autoresizingMask"/>
+                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                                    <nil key="textColor"/>
+                                                    <nil key="highlightedColor"/>
+                                                </label>
+                                            </subviews>
+                                        </tableViewCellContentView>
+                                    </tableViewCell>
+                                </prototypes>
+                            </tableView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="7IS-PU-x0P" firstAttribute="top" secondItem="Smh-Bd-AAc" secondAttribute="top" id="6yd-jv-ey3"/>
+                            <constraint firstItem="7IS-PU-x0P" firstAttribute="leading" secondItem="TkN-Oh-wF8" secondAttribute="leading" id="Z6Y-Dc-cei"/>
+                            <constraint firstItem="7IS-PU-x0P" firstAttribute="bottom" secondItem="TkN-Oh-wF8" secondAttribute="bottom" id="fNW-DP-lhV"/>
+                            <constraint firstItem="7IS-PU-x0P" firstAttribute="trailing" secondItem="TkN-Oh-wF8" secondAttribute="trailing" id="vfY-Rc-FOI"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="TkN-Oh-wF8"/>
+                    </view>
+                    <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>
+        <!--Modal View Controller-->
+        <scene sceneID="C9P-Ns-Qrq">
+            <objects>
+                <viewController storyboardIdentifier="ModalViewController" id="bYI-y3-Rzb" customClass="ModalViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="qwo-GK-p1U">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="vut-mK-Y4t" customClass="SafeAreaView" customModule="Samples" customModuleProvider="target">
+                                <rect key="frame" x="0.0" y="667" width="375" height="0.0"/>
+                                <color key="backgroundColor" white="0.66666666666666663" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                            </view>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="sbF-Az-7sy">
+                                <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="MSC-ch-YJK"/>
+                                </connections>
+                            </button>
+                        </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 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="vut-mK-Y4t" firstAttribute="top" secondItem="GBa-yx-8to" secondAttribute="bottom" id="rMy-JT-t4B"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="GBa-yx-8to"/>
+                    </view>
+                    <connections>
+                        <outlet property="safeAreaView" destination="vut-mK-Y4t" id="r9P-XF-wLd"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="fbi-LZ-M4Y" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="57" y="-758"/>
+        </scene>
+        <!--Detail View Controller-->
+        <scene sceneID="b6k-zi-3wn">
+            <objects>
+                <viewController storyboardIdentifier="DetailViewController" id="YC8-ae-15L" customClass="DetailViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="g7l-kO-y7q">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="778"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="noi-1a-5bZ" customClass="CloseButton" customModule="Samples" customModuleProvider="target">
+                                <rect key="frame" x="319" y="12" width="44" height="44"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" constant="44" id="0jg-5D-A1F"/>
+                                    <constraint firstAttribute="width" constant="44" id="1Cq-PA-wgW"/>
+                                </constraints>
+                                <connections>
+                                    <action selector="closeWithSender:" destination="YC8-ae-15L" eventType="touchUpInside" id="Z2v-19-S5k"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="noi-1a-5bZ" firstAttribute="top" secondItem="g7l-kO-y7q" secondAttribute="top" constant="12" id="EQy-cr-F2Y"/>
+                            <constraint firstItem="tAi-nk-rDB" firstAttribute="trailing" secondItem="noi-1a-5bZ" secondAttribute="trailing" constant="12" id="lv9-Nf-HNB"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="tAi-nk-rDB"/>
+                    </view>
+                    <size key="freeformSize" width="375" height="778"/>
+                    <connections>
+                        <outlet property="closeButton" destination="noi-1a-5bZ" id="eWQ-ha-8y7"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="Wqk-xl-O3I" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="836" y="493.5960591133005"/>
+        </scene>
+        <!--Debug Text View Controller-->
+        <scene sceneID="Bkq-O7-q4A">
+            <objects>
+                <viewController storyboardIdentifier="ConsoleViewController" id="tvD-nO-QUb" customClass="DebugTextViewController" customModule="Samples" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="9YG-0j-Zzg">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="778"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" showsHorizontalScrollIndicator="NO" bouncesZoom="NO" editable="NO" textAlignment="natural" selectable="NO" translatesAutoresizingMaskIntoConstraints="NO" id="rN1-HL-YHv">
+                                <rect key="frame" x="0.0" y="17" width="375" height="761"/>
+                                <color key="backgroundColor" white="1" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <string key="text">The standard Lorem Ipsum passage, used since the 1500s
+
+"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
+
+Section 1.10.32 of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC
+
+"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?"
+
+1914 translation by H. Rackham
+
+"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?"
+
+Section 1.10.33 of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC
+
+"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat."
+
+1914 translation by H. Rackham
+
+"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains."
+
+The standard Lorem Ipsum passage, used since the 1500s
+
+"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
+
+Section 1.10.32 of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC
+
+"Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?"
+
+1914 translation by H. Rackham
+
+"But I must explain to you how all this mistaken idea of denouncing pleasure and praising pain was born and I will give you a complete account of the system, and expound the actual teachings of the great explorer of the truth, the master-builder of human happiness. No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure?"
+
+Section 1.10.33 of "de Finibus Bonorum et Malorum", written by Cicero in 45 BC
+
+"At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat."
+
+1914 translation by H. Rackham
+
+"On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammelled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains."</string>
+                                <fontDescription key="fontDescription" name="CourierNewPSMT" family="Courier New" pointSize="14"/>
+                                <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
+                            </textView>
+                        </subviews>
+                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="rN1-HL-YHv" firstAttribute="leading" secondItem="ix0-2W-gQN" secondAttribute="leading" id="7V3-KL-vXd"/>
+                            <constraint firstAttribute="bottom" secondItem="rN1-HL-YHv" secondAttribute="bottom" id="efD-U5-Tet"/>
+                            <constraint firstItem="rN1-HL-YHv" firstAttribute="top" secondItem="9YG-0j-Zzg" secondAttribute="top" constant="17" id="fiO-LL-nSC"/>
+                            <constraint firstItem="rN1-HL-YHv" firstAttribute="trailing" secondItem="ix0-2W-gQN" secondAttribute="trailing" id="lfg-EE-euw"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="ix0-2W-gQN"/>
+                    </view>
+                    <size key="freeformSize" width="375" height="778"/>
+                    <connections>
+                        <outlet property="textView" destination="rN1-HL-YHv" id="gmr-Uf-jd8"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="x1h-y1-h8q" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="836" y="-446"/>
+        </scene>
+    </scenes>
+</document>

Examples/Samples/Sources/Info.plist

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

Examples/Samples/Sources/UIComponents.swift

@@ -0,0 +1,88 @@
+//
+//  Created by Shin Yamamoto on 2018/09/19.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import UIKit
+
+@IBDesignable
+class CloseButton: UIButton {
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        render()
+    }
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        render()
+    }
+
+    func render() {
+        self.backgroundColor = .clear
+    }
+
+    func p(_ p: CGFloat) -> CGFloat {
+        return p * (2.0 / 3.0)
+    }
+
+    override var isHighlighted: Bool { didSet { setNeedsDisplay() } }
+    override var isSelected: Bool { didSet { setNeedsDisplay() } }
+
+    override func draw(_ rect: CGRect) {
+        guard let context = UIGraphicsGetCurrentContext() else { return }
+
+        context.setLineWidth(p(1.0))
+
+        let color = UIColor(displayP3Red: 0.76,
+                            green: 0.77,
+                            blue: 0.76,
+                            alpha: 1.0)
+
+        context.setFillColor(color.cgColor)
+
+        context.beginPath()
+        context.addArc(center: CGPoint(x: rect.width * 0.5,
+                                       y: rect.height * 0.5),
+                       radius: p(36.0) * 0.5,
+                       startAngle: 0,
+                       endAngle: CGFloat.pi * 2.0,
+                       clockwise: true)
+        context.fillPath()
+
+        let highlightedColor = UIColor(displayP3Red: 0.53,
+                                       green: 0.53,
+                                       blue: 0.53,
+                                       alpha: 1.0)
+
+        let crossColor: UIColor = isHighlighted || isSelected ? highlightedColor : .white
+        context.setStrokeColor(crossColor.cgColor)
+        context.setBlendMode(.normal)
+        context.setLineWidth(p(3.5))
+        context.setLineCap(.round)
+
+        let offset = (rect.width - p(36.0)) * 0.5
+
+        context.beginPath()
+        context.addLines(between: [CGPoint(x: offset + p(12.0), y: offset + p(12.0)),
+                                   CGPoint(x: offset + p(24.0), y: offset + p(24.0))])
+        context.strokePath()
+
+        context.beginPath()
+        context.addLines(between: [CGPoint(x: offset +  p(24.0), y: offset + p(12.0)),
+                                   CGPoint(x: offset + p(12.0), y: offset + p(24.0))])
+        context.strokePath()
+    }
+}
+
+@IBDesignable
+class SafeAreaView: UIView {
+    override func prepareForInterfaceBuilder() {
+        let label = UILabel()
+        label.text = "Safe Area"
+        addSubview(label)
+        label.translatesAutoresizingMaskIntoConstraints = false
+        NSLayoutConstraint.activate([
+            label.centerXAnchor.constraint(equalTo: self.centerXAnchor),
+            label.centerYAnchor.constraint(equalTo: self.centerYAnchor, constant: -4.0),
+            ])
+    }
+}

Examples/Samples/Sources/UIExtensions.swift

@@ -0,0 +1,25 @@
+//
+//  Created by Shin Yamamoto on 2018/10/08.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import UIKit
+
+extension UIView {
+    var layoutInsets: UIEdgeInsets {
+        if #available(iOS 11.0, *) {
+            return safeAreaInsets
+        } else {
+            return layoutMargins
+        }
+    }
+
+    var layoutGuide: UILayoutGuide {
+        if #available(iOS 11.0, *) {
+            return safeAreaLayoutGuide
+        } else {
+            return layoutMarginsGuide
+        }
+    }
+}
+

Examples/Samples/Sources/ViewController.swift

@@ -0,0 +1,275 @@
+//
+//  ViewController.swift
+//  FloatingModalSample
+//
+//  Created by Shin Yamamoto on 2018/09/18.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import UIKit
+import FloatingPanel
+
+class SampleListViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
+    @IBOutlet weak var tableView: UITableView!
+
+    enum Menu: Int, CaseIterable {
+        case trackingTableView
+        case trackingTextView
+        case showDetail
+        case showModal
+
+        var name: String {
+            switch self {
+            case .trackingTableView: return "Scroll tracking (UITableView)"
+            case .trackingTextView: return "Scroll tracking (UITextView)"
+            case .showDetail: return "Show Detail Panel"
+            case .showModal: return "Show Modal"
+            }
+        }
+
+        var storyboardID: String? {
+            switch self {
+            case .trackingTableView: return nil
+            case .trackingTextView: return "ConsoleViewController"
+            case .showDetail: return "DetailViewController"
+            case .showModal: return "ModalViewController"
+            }
+        }
+    }
+
+    var mainPanelVC: FloatingPanelController!
+    var detailPanelVC: FloatingPanelController!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        tableView.dataSource = self
+        tableView.delegate = self
+        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
+
+        let contentVC = DebugTableViewController(style: .plain)
+        addMainPanel(with: contentVC)
+    }
+
+    func addMainPanel(with contentVC: UIViewController) {
+        // Initialize FloatingPanelController
+        mainPanelVC = FloatingPanelController()
+
+        // 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)
+
+        switch contentVC {
+        case let consoleVC as DebugTextViewController:
+            mainPanelVC.track(scrollView: consoleVC.textView)
+
+        case let contentVC as DebugTableViewController:
+            mainPanelVC.track(scrollView: contentVC.tableView)
+
+        default:
+            fatalError()
+        }
+        //  Add FloatingPanel to self.view
+        mainPanelVC.addPanel(toParent: self, belowView: nil, animated: true)
+    }
+
+    @objc func dismissDetailPanelVC()  {
+        detailPanelVC.removePanelFromParent(animated: true, completion: nil)
+    }
+
+    // MARK:- TableViewDatasource
+
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return Menu.allCases.count
+    }
+
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
+        let menu = Menu.allCases[indexPath.row]
+        cell.textLabel?.text = menu.name
+        return cell
+    }
+
+    // MARK:- TableViewDelegate
+
+    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 vc = self.storyboard?.instantiateViewController(withIdentifier: storyboardID) else { fatalError() }
+            return vc
+        }()
+
+        switch menu {
+        case .showDetail:
+            detailPanelVC?.removeFromParent()
+
+            // Initialize FloatingPanelController
+            detailPanelVC = FloatingPanelController()
+
+            // Initialize FloatingPanelController and add the view
+            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)
+
+            //  Add FloatingPanel to self.view
+            detailPanelVC.addPanel(toParent: self, belowView: nil, animated: true)
+        case .showModal:
+            let modalVC = contentVC
+            present(modalVC, animated: true, completion: nil)
+        default:
+            detailPanelVC?.removePanelFromParent(animated: true, completion: nil)
+            mainPanelVC?.removePanelFromParent(animated: true) {
+                self.addMainPanel(with: contentVC)
+            }
+        }
+    }
+}
+
+class DebugTextViewController: UIViewController, UITextViewDelegate {
+    @IBOutlet weak var textView: UITextView!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        textView.delegate = self
+        if #available(iOS 11.0, *) {
+            textView.contentInsetAdjustmentBehavior = .never
+        }
+    }
+
+    func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        print("TextView --- ", scrollView.contentOffset, scrollView.contentInset)
+        if #available(iOS 11.0, *) {
+            print("TextView --- ", scrollView.adjustedContentInset)
+        }
+    }
+
+    @IBAction func close(sender: UIButton) {
+        // Now impossible
+        // dismiss(animated: true, completion: nil)
+        (self.parent as? FloatingPanelController)?.removePanelFromParent(animated: true, completion: nil)
+    }
+}
+
+class DebugTableViewController: UITableViewController {
+    var items: [String] = []
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        for i in 0...100 {
+            items.append("Items \(i)")
+        }
+        tableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
+    }
+
+    @objc func close(sender: UIButton) {
+        //  Remove FloatingPanel from a view
+        (self.parent as! FloatingPanelController).removePanelFromParent(animated: true, completion: nil)
+    }
+
+    override func viewWillLayoutSubviews() {
+        super.viewWillLayoutSubviews()
+        //print("Content View: viewWillLayoutSubviews")
+    }
+
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        //print("Content View: viewDidLayoutSubviews")
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        print("Content View: viewWillAppear")
+    }
+
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        print("Content View: viewDidAppear")
+    }
+
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        print("Content View: viewWillDisappear")
+    }
+
+    override func viewDidDisappear(_ animated: Bool) {
+        super.viewDidDisappear(animated)
+        print("Content View: viewDidDisappear")
+    }
+
+    override func willMove(toParent parent: UIViewController?) {
+        super.willMove(toParent: parent)
+        print("Content View: willMove(toParent: \(String(describing: parent))")
+    }
+
+    override func didMove(toParent parent: UIViewController?) {
+        super.didMove(toParent: parent)
+        print("Content View: didMove(toParent: \(String(describing: parent))")
+    }
+
+    public override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
+        print("Content View: willTransition(to: \(newCollection), with: \(coordinator))")
+    }
+
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+
+    override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
+        return 66.0
+    }
+
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
+        cell.textLabel?.text = items[indexPath.row]
+        return cell
+    }
+}
+
+class DetailViewController: UIViewController {
+    @IBOutlet weak var closeButton: UIButton!
+    @IBAction func close(sender: UIButton) {
+        // Now impossible
+        // dismiss(animated: true, completion: nil)
+        (self.parent as? FloatingPanelController)?.removePanelFromParent(animated: true, completion: nil)
+    }
+}
+
+class ModalViewController: UIViewController {
+    var fpc: FloatingPanelController!
+    var consoleVC: DebugTextViewController!
+    @IBOutlet weak var safeAreaView: UIView!
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        // Initialize FloatingPanelController
+        fpc = FloatingPanelController()
+
+        // 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
+        let consoleVC = storyboard?.instantiateViewController(withIdentifier: "ConsoleViewController") as! DebugTextViewController
+        fpc.show(consoleVC, sender: self)
+        self.consoleVC = consoleVC
+        fpc.track(scrollView: consoleVC.textView)
+
+        //  Add FloatingPanel to self.view
+        fpc.addPanel(toParent: self, belowView: safeAreaView)
+    }
+
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        //  Remove FloatingPanel from a view
+        fpc.removePanelFromParent(animated: false)
+    }
+
+    @IBAction func close(sender: UIButton) {
+        dismiss(animated: true, completion: nil)
+    }
+}

Examples/Samples/Tests/Info.plist

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

Examples/Samples/Tests/SampleTests.swift

@@ -0,0 +1,34 @@
+//
+//  FloatingModalSampleTests.swift
+//  FloatingModalSampleTests
+//
+//  Created by Shin Yamamoto on 2018/09/18.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import XCTest
+@testable import FloatingPanelSample
+
+class SampleTests: XCTestCase {
+
+    override func setUp() {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+    }
+
+    override func tearDown() {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    func testExample() {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+    }
+
+    func testPerformanceExample() {
+        // This is an example of a performance test case.
+        self.measure {
+            // Put the code you want to measure the time of here.
+        }
+    }
+
+}

Examples/Samples/UITests/Info.plist

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

Examples/Samples/UITests/SampleUITests.swift

@@ -0,0 +1,31 @@
+//
+//  Created by Shin Yamamoto on 2018/09/18.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
+//
+
+import XCTest
+
+class SampleUITests: XCTestCase {
+
+    override func setUp() {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+
+        // In UI tests it is usually best to stop immediately when a failure occurs.
+        continueAfterFailure = false
+
+        // UI tests must launch the application that they test. Doing this in setup will make sure it happens for each test method.
+        XCUIApplication().launch()
+
+        // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
+    }
+
+    override func tearDown() {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    func testExample() {
+        // Use recording to get started writing UI tests.
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+    }
+
+}

Examples/Stocks/Stocks.xcodeproj/project.pbxproj

@@ -303,7 +303,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = Stocks/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (
@@ -322,7 +322,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = J3D7L9FHSS;
+				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = Stocks/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (

Examples/Stocks/Stocks/AppDelegate.swift

@@ -3,7 +3,7 @@
 //  Stocks
 //
 //  Created by Shin Yamamoto on 2018/10/12.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit

Examples/Stocks/Stocks/ViewController.swift

@@ -3,7 +3,7 @@
 //  Stocks
 //
 //  Created by Shin Yamamoto on 2018/10/12.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -38,7 +38,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
         fpc.show(newsVC, sender: self)
         fpc.track(scrollView: newsVC.scrollView)
 
-        fpc.add(toParent: self, belowView: bottomToolView, animated: false)
+        fpc.addPanel(toParent: self, belowView: bottomToolView, animated: false)
 
         topBannerView.frame = .zero
         topBannerView.alpha = 0.0
@@ -135,27 +135,16 @@ class FloatingPanelStocksBehavior: FloatingPanelBehavior {
         return 15.0
     }
 
-    func interactionAnimator(to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
-        let damping = self.damping(with: velocity)
-        let springTiming = UISpringTimingParameters(dampingRatio: damping,
-                                                    initialVelocity: velocity)
-        let duration = getDuration(with: velocity)
-        return UIViewPropertyAnimator(duration: duration, timingParameters: springTiming)
+    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
+        let timing = timeingCurve(to: targetPosition, with: velocity)
+        return UIViewPropertyAnimator(duration: 0, timingParameters: timing)
     }
 
-    private func getDuration(with velocity: CGVector) -> TimeInterval {
-        let dy = abs(velocity.dy)
-        switch dy {
-        case ..<1.0:
-            return 0.5
-        case 1.0..<velocityThreshold:
-            let a = ((dy - 1.0) / (velocityThreshold - 1.0))
-            return TimeInterval(0.5 - (0.25 * a))
-        case velocityThreshold...:
-            return 0.25
-        default:
-            fatalError()
-        }
+    private func timeingCurve(to: FloatingPanelPosition, with velocity: CGVector) -> UITimingCurveProvider {
+        let damping = self.damping(with: velocity)
+        return UISpringTimingParameters(dampingRatio: damping,
+                                        frequencyResponse: 0.4,
+                                        initialVelocity: velocity)
     }
 
     private func damping(with velocity: CGVector) -> CGFloat {

FloatingPanel.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name                = "FloatingPanel"
-  s.version             = "0.9"
+  s.version             = "1.0.0"
   s.summary             = "FloatingPanel is a simple 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.xcworkspace/contents.xcworkspacedata

@@ -8,7 +8,7 @@
       location = "group:Framework"
       name = "Framework">
       <FileRef
-         location = "group:/Users/shin/Workspace/scenee/FloatingPanel/Framework/FloatingPanel.xcodeproj">
+         location = "group:FloatingPanel.xcodeproj">
       </FileRef>
    </Group>
    <Group

Framework/Sources/FloatingPanel.swift

@@ -1,5 +1,5 @@
 //
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -7,50 +7,47 @@ import UIKit
 ///
 /// FloatingPanel presentation model
 ///
-class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
+class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate {
     /* Cause 'terminating with uncaught exception of type NSException' error on Swift Playground
      unowned let view: UIView
      */
     let surfaceView: FloatingPanelSurfaceView
     let backdropView: FloatingPanelBackdropView
-
-    private unowned let viewcontroller: FloatingPanelController
+    var layoutAdapter: FloatingPanelLayoutAdapter
+    var behavior: FloatingPanelBehavior
 
     weak var scrollView: UIScrollView? {
         didSet {
-            configureScrollable()
+            guard let scrollView = scrollView else { return }
+            scrollView.panGestureRecognizer.addTarget(self, action: #selector(handle(panGesture:)))
+            scrollBouncable = scrollView.bounces
+            scrollIndictorVisible = scrollView.showsVerticalScrollIndicator
         }
     }
+    weak var userScrollViewDelegate: UIScrollViewDelegate?
 
     var safeAreaInsets: UIEdgeInsets! {
-        get {
-            return layoutAdapter.safeAreaInsets
-        }
-        set {
-            layoutAdapter.safeAreaInsets = newValue
-        }
+        get { return layoutAdapter.safeAreaInsets }
+        set { layoutAdapter.safeAreaInsets = newValue }
     }
 
-    private(set) var state: FloatingPanelPosition = .tip {
-        didSet {
-            switch state {
-            case .full:
-                backdropView.alpha = layoutAdapter.layout.backdropAlpha
-            default:
-                backdropView.alpha = 0.0
-            }
-            configureScrollable()
-        }
-    }
+    unowned let viewcontroller: FloatingPanelController
+
+    private(set) var state: FloatingPanelPosition = .tip
 
-    var layoutAdapter: FloatingPanelLayoutAdapter
-    var behavior: FloatingPanelBehavior
     private var animator: UIViewPropertyAnimator?
     private let panGesture: UIPanGestureRecognizer
     private var initialFrame: CGRect = .zero
     private var transOffsetY: CGFloat = 0
     private var interactionInProgress: Bool = false
 
+    // Scroll handling
+    private var stopScrollDeceleration: Bool = false
+    private var scrollBouncable = false
+    private var scrollIndictorVisible = false
+
+    // MARK: - Interface
+
     init(_ vc: FloatingPanelController, layout: FloatingPanelLayout, behavior: FloatingPanelBehavior) {
         viewcontroller = vc
         surfaceView = vc.view as! FloatingPanelSurfaceView
@@ -58,7 +55,9 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         backdropView.backgroundColor = .black
         backdropView.alpha = 0.0
 
-        self.layoutAdapter = FloatingPanelLayoutAdapter(surfaceView: surfaceView, layout: layout)
+        self.layoutAdapter = FloatingPanelLayoutAdapter(surfaceView: surfaceView,
+                                                        backdropView: backdropView,
+                                                        layout: layout)
         self.behavior = behavior
 
         panGesture = UIPanGestureRecognizer()
@@ -84,11 +83,17 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
     }
 
     func move(to: FloatingPanelPosition, animated: Bool, completion: (() -> Void)? = nil) {
+        if to != .full {
+            lockScrollView()
+        }
+
         if animated {
-            let animator = behavior.presentAnimator(from: state, to: to)
+            let animator = behavior.presentAnimator(self.viewcontroller, from: state, to: to)
             animator.addAnimations { [weak self] in
-                self?.updateLayout(to: to)
-                self?.state = to
+                guard let self = self else { return }
+
+                self.updateLayout(to: to)
+                self.state = to
             }
             animator.addCompletion { _ in
                 completion?()
@@ -108,9 +113,11 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
 
     func dismiss(animated: Bool, completion: (() -> Void)? = nil) {
         if animated {
-            let animator = behavior.dismissAnimator(from: state)
+            let animator = behavior.dismissAnimator(self.viewcontroller, from: state)
             animator.addAnimations { [weak self] in
-                self?.updateLayout(to: nil)
+                guard let self = self else { return }
+
+                self.updateLayout(to: nil)
             }
             animator.addCompletion { _ in
                 completion?()
@@ -122,78 +129,96 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         }
     }
 
+    // MARK: - Layout update
+
+    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
+    }
+
+    // MARK: - UIGestureRecognizerDelegate
+
     public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer,
                                   shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
-        log.debug("gestureRecognizer", gestureRecognizer,
-              "shouldRecognizeSimultaneouslyWith", otherGestureRecognizer)
-        if #available(iOS 11.0, *) {
-            log.debug("gestureRecognizer",
-                  String(describing: gestureRecognizer.name),
-                  "shouldRecognizeSimultaneouslyWith",
-                  String(describing: otherGestureRecognizer.name))
-        }
+        guard gestureRecognizer == panGesture else { return false }
 
-        switch (gestureRecognizer, otherGestureRecognizer) {
-        case (panGesture, scrollView?.panGestureRecognizer):
-            return state == .full
-        case (panGesture, is UIPanGestureRecognizer):
+        log.debug("shouldRecognizeSimultaneouslyWith", otherGestureRecognizer)
+
+        return otherGestureRecognizer == scrollView?.panGestureRecognizer
+    }
+
+    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 {
             return false
-        default:
+        } else {
             return true
         }
     }
 
-    public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
-        // Do not begin any gestures until the pan gesture fails at non-full position.
-        return gestureRecognizer == panGesture && state != .full
-    }
-
-    public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
-        return true
-    }
-
-    private func configureScrollable() {
-        switch state {
-        case .full:
-            scrollView?.isScrollEnabled = true
-        default:
-            scrollView?.isScrollEnabled = false
-        }
-    }
+    // MARK: - Gesture handling
 
     @objc func handle(panGesture: UIPanGestureRecognizer) {
-        let translation = panGesture.translation(in: panGesture.view!.superview)
-        let velocity = panGesture.velocity(in: panGesture.view)
-        let location = panGesture.location(in: panGesture.view)
+        log.debug("Gesture >>>>", panGesture)
 
-        if #available(iOS 11.0, *) {
-            log.debug("Gesture >>>>", panGesture.name!)
-        }
-        if let scrollView = scrollView, scrollView.frame.contains(location), interactionInProgress == false {
-            log.debug("ScrollView.contentOffset >>>", scrollView.contentOffset)
-            if state == .full {
-                if scrollView.contentOffset.y > scrollView.contentOffsetZero.y {
-                    return
-                }
-                if scrollView.isDecelerating {
-                    return
-                }
-                if interactionInProgress == false, velocity.y < 0 {
-                    return
+        switch panGesture {
+        case scrollView?.panGestureRecognizer:
+            guard let scrollView = scrollView else { return }
+            if surfaceView.frame.minY > layoutAdapter.topY {
+                scrollView.contentOffset.y = scrollView.contentOffsetZero.y
+            }
+        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) }")
+
+            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
+                    }
                 }
             }
-            scrollView.contentOffset.y = scrollView.contentOffsetZero.y
-        }
-        log.debug(panGesture.state, ">>>", "{ translation: \(translation), velocity: \(velocity) }")
-        switch panGesture.state {
-        case .began:
-            panningBegan()
-        case .changed:
-            panningChange(with: translation)
-        case .ended, .cancelled, .failed:
-            panningEnd(with: translation, velocity: velocity)
-        case .possible:
-            break
+
+            switch panGesture.state {
+            case .began:
+                panningBegan()
+            case .changed:
+                panningChange(with: translation)
+            case .ended, .cancelled, .failed:
+                panningEnd(with: translation, velocity: velocity)
+            case .possible:
+                break
+            }
+        default:
+            return
         }
     }
 
@@ -209,11 +234,15 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         if interactionInProgress == false {
             startInteraction(with: translation)
         }
+
+        let currentY = getCurrentY(from: initialFrame, with: translation)
+
         var frame = initialFrame
-        frame.origin.y = getCurrentY(from: initialFrame, with: translation)
+        frame.origin.y = currentY
         surfaceView.frame = frame
+        backdropView.alpha = getBackdropAlpha(with: translation)
+
         viewcontroller.delegate?.floatingPanelDidMove(viewcontroller)
-        backdropView.alpha = updateBackdropAlpha(with: translation)
     }
 
     private func panningEnd(with translation: CGPoint, velocity: CGPoint) {
@@ -222,12 +251,16 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
             initialFrame = surfaceView.frame
         }
 
+        stopScrollDeceleration = (surfaceView.frame.minY > layoutAdapter.topY) // Projecting the dragging to the scroll dragging
+
         let targetPosition = self.targetPosition(with: translation, velocity: velocity)
         let distance = self.distance(to: targetPosition, with: translation)
 
         endInteraction(for: targetPosition)
+
         viewcontroller.delegate?.floatingPanelDidEndDragging(viewcontroller, withVelocity: velocity, targetPosition: targetPosition)
         viewcontroller.delegate?.floatingPanelWillBeginDecelerating(viewcontroller)
+
         startAnimation(to: targetPosition, at: distance, with: velocity)
     }
 
@@ -236,19 +269,16 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         initialFrame = surfaceView.frame
         transOffsetY = translation.y
         viewcontroller.delegate?.floatingPanelWillBeginDragging(viewcontroller)
-        if let scrollView = scrollView {
-            scrollView.isScrollEnabled = false
-        }
+
+        lockScrollView()
 
         interactionInProgress = true
     }
 
     private func endInteraction(for targetPosition: FloatingPanelPosition) {
         log.debug("endInteraction for \(targetPosition)")
-        if let scrollView = scrollView {
-            if targetPosition == .full {
-                scrollView.isScrollEnabled = true
-            }
+        if targetPosition != .full {
+            lockScrollView(withBounce: true)
         }
         interactionInProgress = false
     }
@@ -264,17 +294,25 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         let bottomY = layoutAdapter.bottomY
         let bottomBuffer = layoutAdapter.layout.bottomInteractionBuffer
 
-        return max(topY - topInset + topBuffer,  min(bottomY + bottomBuffer, y))
+        if let scrollView = scrollView, scrollView.panGestureRecognizer.state == .changed {
+            let preY = surfaceView.frame.origin.y
+            if preY > 0 && preY > y {
+                return max(topY, min(bottomY, y))
+            }
+        }
+        return max(topY - topInset + 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: velocity.y/distance) : .zero
-        let animator = behavior.interactionAnimator(to: targetPosition, with: velocityVector)
+        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)
             } else {
                 self.updateLayout(to: targetPosition)
             }
@@ -297,20 +335,11 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
         log.debug("finishAnimation \(targetPosition)")
         self.animator = nil
         self.viewcontroller.delegate?.floatingPanelDidEndDecelerating(self.viewcontroller)
+
+        // Don't unlock scroll view in animating view when presentation layer != model layer
+        unlockScrollView()
     }
 
-    private func updateLayout(to target: FloatingPanelPosition?) {
-        self.layoutAdapter.activateLayout(of: target)
-    }
-
-    private func updateBackdropAlpha(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
-    }
-
-    // Animation handling
     private func distance(to targetPosition: FloatingPanelPosition, with translation: CGPoint) -> CGFloat {
         let topY = layoutAdapter.topY
         let middleY = layoutAdapter.middleY
@@ -412,4 +441,47 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate {
             }
         }
     }
+
+    // MARK: - ScrollView handling
+
+    func lockScrollView(withBounce bounce: Bool = false) {
+        guard let scrollView = scrollView else { return }
+
+        scrollView.isDirectionalLockEnabled = true
+        if bounce {
+            scrollView.bounces = false
+        }
+        scrollView.showsVerticalScrollIndicator = false
+    }
+
+    func unlockScrollView() {
+        guard let scrollView = scrollView else { return }
+
+        scrollView.isDirectionalLockEnabled = false
+        scrollView.bounces = scrollBouncable
+        scrollView.showsVerticalScrollIndicator = scrollIndictorVisible
+    }
+
+
+    // MARK: - UIScrollViewDelegate Intermediation
+    override func responds(to aSelector: Selector!) -> Bool {
+        return super.responds(to: aSelector) || userScrollViewDelegate?.responds(to: aSelector) == true
+    }
+
+    override func forwardingTarget(for aSelector: Selector!) -> Any? {
+        if userScrollViewDelegate?.responds(to: aSelector) == true {
+            return userScrollViewDelegate
+        } else {
+            return super.forwardingTarget(for: aSelector)
+        }
+    }
+
+    func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
+        if stopScrollDeceleration {
+            targetContentOffset.pointee = scrollView.contentOffset
+            stopScrollDeceleration = false
+        } else {
+            userScrollViewDelegate?.scrollViewWillEndDragging?(scrollView, withVelocity: velocity, targetContentOffset: targetContentOffset)
+        }
+    }
 }

Framework/Sources/FloatingPanelBackdropView.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/26.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit

Framework/Sources/FloatingPanelBehavior.swift

@@ -1,61 +1,45 @@
 //
 //  Created by Shin Yamamoto on 2018/10/03.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
 
 public protocol FloatingPanelBehavior {
     // Returns a UIViewPropertyAnimator object in interacting a floating panel by a user pan gesture
-    func interactionAnimator(to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator
+    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator
 
     // Returns a UIViewPropertyAnimator object to present a floating panel
-    func presentAnimator(from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator
+    func presentAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator
     // Returns a UIViewPropertyAnimator object to dismiss a floating panel
-    func dismissAnimator(from: FloatingPanelPosition) -> UIViewPropertyAnimator
+    func dismissAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator
 }
 
 public extension FloatingPanelBehavior {
-    func presentAnimator(from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator {
+    func presentAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition, to: FloatingPanelPosition) -> UIViewPropertyAnimator {
         return UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut)
     }
 
-    func dismissAnimator(from: FloatingPanelPosition) -> UIViewPropertyAnimator {
+    func dismissAnimator(_ fpc: FloatingPanelController, from: FloatingPanelPosition) -> UIViewPropertyAnimator {
         return UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut)
     }
 }
 
 class FloatingPanelDefaultBehavior: FloatingPanelBehavior {
-    func interactionAnimator(to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
+    func interactionAnimator(_ fpc: FloatingPanelController, to targetPosition: FloatingPanelPosition, with velocity: CGVector) -> UIViewPropertyAnimator {
         let timing = timeingCurve(to: targetPosition, with: velocity)
-        let duration = getDuration(with: velocity)
-        return UIViewPropertyAnimator(duration: duration, timingParameters: timing)
-    }
-
-    private let velocityThreshold: CGFloat = 8.0
-    private func getDuration(with velocity: CGVector) -> TimeInterval {
-        let dy = abs(velocity.dy)
-        switch dy {
-        case ..<1.0:
-            return 0.6
-        case 1.0..<velocityThreshold:
-            let a = ((dy - 1.0) / (velocityThreshold - 1.0))
-            return TimeInterval(0.6 - (0.2 * a))
-        case velocityThreshold...:
-            return 0.4
-        default:
-            fatalError()
-        }
+        return UIViewPropertyAnimator(duration: 0, timingParameters: timing)
     }
 
     private func timeingCurve(to: FloatingPanelPosition, with velocity: CGVector) -> UITimingCurveProvider {
         log.debug("velocity", velocity)
         let damping = self.getDamping(with: velocity)
-        let springTiming = UISpringTimingParameters(dampingRatio: damping,
-                                                    initialVelocity: velocity)
-        return springTiming
+        return UISpringTimingParameters(dampingRatio: damping,
+                                        frequencyResponse: 0.3,
+                                        initialVelocity: velocity)
     }
 
+    private let velocityThreshold: CGFloat = 8.0
     private func getDamping(with velocity: CGVector) -> CGFloat {
         let dy = abs(velocity.dy)
         if dy > velocityThreshold {

Framework/Sources/FloatingPanelController.h

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/18.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 #import <UIKit/UIKit.h>

Framework/Sources/FloatingPanelController.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/18.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -47,6 +47,12 @@ public enum FloatingPanelPosition: Int {
 ///
 public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UIGestureRecognizerDelegate {
 
+    /// Constants indicating how safe area insets are added to the adjusted content inset.
+    public enum ContentInsetAdjustmentBehavior: Int {
+        case always
+        case never
+    }
+
     /// The delegate of the floating panel controller object.
     public weak var delegate: FloatingPanelControllerDelegate?
 
@@ -70,6 +76,16 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         return floatingPanel.state
     }
 
+    /// The content insets of the tracking scroll view derived 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.
+    public var contentInsetAdjustmentBehavior: ContentInsetAdjustmentBehavior = .always
+
     private var floatingPanel: FloatingPanel!
 
     required init?(coder aDecoder: NSCoder) {
@@ -93,8 +109,8 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         let layout = fetchLayout(for: self.traitCollection)
         let behavior = fetchBehavior(for: self.traitCollection)
         floatingPanel = FloatingPanel(self,
-                                    layout: layout,
-                                    behavior: behavior)
+                                      layout: layout,
+                                      behavior: behavior)
     }
 
     public override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
@@ -115,7 +131,7 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         guard previousTraitCollection != traitCollection else { return }
 
         if let parent = parent {
-            floatingPanel.safeAreaInsets = parent.layoutInsets
+            self.update(safeAreaInsets: parent.layoutInsets)
         }
         floatingPanel.layoutAdapter.updateHeight()
         floatingPanel.backdropView.isHidden = (traitCollection.verticalSizeClass == .compact)
@@ -123,11 +139,12 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
 
     public override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
-        // Must set `parent.view.layoutInsets` to floatingPanel.safeAreaInsets` here
-        // because it ensures that parent.view.layoutInsets` has a correct value.
+
+        // I needs 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 {
-            floatingPanel.safeAreaInsets = parent.layoutInsets
-            floatingPanel.backdropView.frame = parent.view.bounds
+            self.update(safeAreaInsets: parent.layoutInsets)
         }
     }
 
@@ -144,14 +161,25 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         return self.delegate?.floatingPanel(self, behaviorFor: traitCollection) ?? FloatingPanelDefaultBehavior()
     }
 
-    // MARK: Container view controller responsibilities
+    private func update(safeAreaInsets: UIEdgeInsets) {
+        floatingPanel.safeAreaInsets = safeAreaInsets
+        switch contentInsetAdjustmentBehavior {
+        case .always:
+            scrollView?.contentInset = adjustedContentInsets
+            scrollView?.scrollIndicatorInsets = adjustedContentInsets
+        default:
+            break
+        }
+    }
 
-    /// Adds the controller as a child of the specified view controller.
+    // MARK: - Container view controller interface
+
+    /// Adds the view managed 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.
     ///     - animated: Pass true to animate the presentation; otherwise, pass false.
-    public func add(toParent parent: UIViewController, belowView: UIView? = nil, animated: Bool = false) {
+    public func addPanel(toParent parent: UIViewController, belowView: UIView? = nil, animated: Bool = false) {
         guard self.parent == nil else {
             log.warning("Already added to a parent(\(parent))")
             return
@@ -178,12 +206,15 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         }
     }
 
-    /// Removes the view controller from its parent.
+    /// Removes the controller and the managed view from its parent view controller
     /// - Parameters:
     ///     - 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.
-    public func removeFromParent(animated: Bool = false, completion: (() -> Void)? = nil) {
-        guard self.parent != nil else { return }
+    public func removePanelFromParent(animated: Bool, completion: (() -> Void)? = nil) {
+        guard self.parent != nil else {
+            completion?()
+            return
+        }
 
         floatingPanel.dismiss(animated: animated) { [weak self] in
             guard let self = self else { return }
@@ -220,11 +251,33 @@ public class FloatingPanelController: UIViewController, UIScrollViewDelegate, UI
         vc.didMove(toParent: self)
     }
 
-    /// Tracks the specified scroll view for the inteface to correspond with the scroll pan gesture.
+    // MARK: - Scroll view tracking
+
+    /// 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.
+    ///
     public func track(scrollView: UIScrollView) {
         floatingPanel.scrollView = scrollView
+        floatingPanel.userScrollViewDelegate = scrollView.delegate
+        scrollView.delegate = floatingPanel
+        switch contentInsetAdjustmentBehavior {
+        case .always:
+            if #available(iOS 11.0, *) {
+                scrollView.contentInsetAdjustmentBehavior = .never
+            } else {
+                children.forEach { (vc) in
+                    vc.automaticallyAdjustsScrollViewInsets = false
+                }
+            }
+        default:
+            break
+        }
     }
 
+    // MARK: - Helpers
+
     /// Returns the y-coordinate of the point at the origin of the surface view
     public func originYOfSurface(for pos: FloatingPanelPosition) -> CGFloat {
         switch pos {

Framework/Sources/FloatingPanelLayout.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/27.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -88,6 +88,7 @@ public class FloatingPanelDefaultLandscapeLayout: FloatingPanelLayout {
 
 class FloatingPanelLayoutAdapter {
     private weak var surfaceView: FloatingPanelSurfaceView!
+    private weak var backdropVIew: FloatingPanelBackdropView!
 
     var layout: FloatingPanelLayout
 
@@ -123,6 +124,13 @@ class FloatingPanelLayoutAdapter {
         return surfaceView.superview!.bounds.height - (safeAreaInsets.bottom + tipInset)
     }
 
+    var adjustedContentInsets: UIEdgeInsets {
+        return UIEdgeInsets(top: 0.0,
+                            left: 0.0,
+                            bottom: (safeAreaInsets.top + topInset) + (heightBuffer + safeAreaInsets.bottom),
+                            right: 0.0)
+    }
+
     func positionY(for pos: FloatingPanelPosition) -> CGFloat {
         switch pos {
         case .full:
@@ -134,9 +142,10 @@ class FloatingPanelLayoutAdapter {
         }
     }
 
-    init(surfaceView: FloatingPanelSurfaceView, layout: FloatingPanelLayout) {
+    init(surfaceView: FloatingPanelSurfaceView, backdropView: FloatingPanelBackdropView, layout: FloatingPanelLayout) {
         self.layout = layout
         self.surfaceView = surfaceView
+        self.backdropVIew = backdropView
 
         // Verify layout configurations
         assert(layout.supportedPositions.count > 1)
@@ -148,10 +157,25 @@ class FloatingPanelLayoutAdapter {
 
     func prepareLayout(toParent parent: UIViewController) {
         surfaceView.translatesAutoresizingMaskIntoConstraints = false
+        backdropVIew.translatesAutoresizingMaskIntoConstraints = false
+
         NSLayoutConstraint.deactivate(fixedConstraints + fullConstraints + halfConstraints + tipConstraints + offConstraints)
 
-        fixedConstraints = layout.prepareLayout(surfaceView: surfaceView, in: parent.view!)
+        // 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,
+                                              constant: 0.0),
+            backdropVIew.leftAnchor.constraint(equalTo: parent.view.leftAnchor,
+                                               constant: 0.0),
+            backdropVIew.rightAnchor.constraint(equalTo: parent.view.rightAnchor,
+                                                constant: 0.0),
+            backdropVIew.bottomAnchor.constraint(equalTo: parent.view.bottomAnchor,
+                                                 constant: 0.0),
+            ]
+        fixedConstraints = surfaceConstraints + backdroptConstraints
 
+        // Flexible surface constarints for full, half, tip and off
         fullConstraints = [
             surfaceView.topAnchor.constraint(equalTo: parent.layoutGuide.topAnchor,
                                              constant: topInset),

Framework/Sources/FloatingPanelSurfaceView.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/26.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -13,6 +13,11 @@ public class FloatingPanelSurfaceView: UIView {
     /// A GrabberHandleView object displayed at the top of the surface view
     public var grabberHandle: GrabberHandleView!
 
+    /// The height of the grabber bar area
+    public static var topGrabberBarHeight: CGFloat {
+        return Default.grabberTopPadding * 2 + GrabberHandleView.Default.height // 17.0
+    }
+
     /// A UIView object that can have the surface view added to it.
     public var contentView: UIView!
 
@@ -50,14 +55,11 @@ public class FloatingPanelSurfaceView: UIView {
     /// The color of the surface border.
     public var borderWidth: CGFloat = 0.0  { didSet { setNeedsLayout() } }
 
-
     private var shadowLayer: CAShapeLayer!  { didSet { setNeedsLayout() } }
-    public struct Default {
+
+    private struct Default {
         public static let grabberTopPadding: CGFloat = 6.0
     }
-    private var topGrabberBarHeight: CGFloat {
-        return Default.grabberTopPadding * 2 + GrabberHandleView.Default.height
-    }
 
     override init(frame: CGRect) {
         super.init(frame: frame)

Framework/Sources/GrabberHandleView.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/19.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit

Framework/Sources/Logger.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/10/09.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import Foundation

Framework/Sources/UIExtensions.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/18.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import UIKit
@@ -75,6 +75,15 @@ extension UIGestureRecognizer.State: CustomDebugStringConvertible {
 
 extension UIScrollView {
     var contentOffsetZero: CGPoint {
-        return CGPoint(x: 0.0, y: 0.0 + contentInset.top)
+        return CGPoint(x: 0.0, y: 0.0 - contentInset.top)
+    }
+}
+
+extension UISpringTimingParameters {
+    public convenience init(dampingRatio: CGFloat, frequencyResponse: CGFloat, initialVelocity: CGVector = .zero) {
+        let mass = 1 as CGFloat
+        let stiffness = pow(2 * .pi / frequencyResponse, 2) * mass
+        let damp = 4 * .pi * dampingRatio * mass / frequencyResponse
+        self.init(mass: mass, stiffness: stiffness, damping: damp, initialVelocity: initialVelocity)
     }
 }

Framework/Tests/ViewTests.swift

@@ -1,6 +1,6 @@
 //
 //  Created by Shin Yamamoto on 2018/09/18.
-//  Copyright © 2018 scenee. All rights reserved.
+//  Copyright © 2018 Shin Yamamoto. All rights reserved.
 //
 
 import XCTest

README.md

@@ -6,6 +6,7 @@ The new interface displays the related contents and utilities in parallel as a u
 ![Maps](https://github.com/SCENEE/FloatingPanel/blob/master/assets/maps.gif)
 ![Stocks](https://github.com/SCENEE/FloatingPanel/blob/master/assets/stocks.gif)
 
+![Maps(Landscape)](https://github.com/SCENEE/FloatingPanel/blob/master/assets/maps-landscape.gif)
 
 ## Features
 
@@ -58,25 +59,27 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
 
     override func viewDidLoad() {
         super.viewDidLoad()
-        // Initialize FloatingPanelController and add the view
+        // Initialize a `FloatingPanelController` object.
         fpc = FloatingPanelController()
-        fpc.delegate = self
 
-        // Add a content view controller
+        // Assign self as the delegate of the controller.
+        fpc.delegate = self // Optional
+
+        // Add a content view controller.
         let contentVC = ContentViewController()
         fpc.show(contentVC, sender: nil)
 
-        // Track a scroll view in the Content VC.
+        // Track a scroll view(or the siblings) in the content view controller.
         fpc.track(scrollView: contentVC.tableView)
 
-        //  Add FloatingPanel to self.view
-        fpc.add(toParent: self)
+        // Add the views managed by the `FloatingPanelController` object to self.view.
+        fpc.addPanel(toParent: self)
     }
 
     override func viewWillDisappear(_ animated: Bool) {
         super.viewWillDisappear(animated)
-        //  Remove FloatingPanel from self.view
-        fpc.removeFromParent()
+        // Remove the views managed by the `FloatingPanelController` object from self.view.
+        fpc.removePanelFromParent()
     }
     ...
 }
@@ -198,7 +201,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
         self.searchPanelVC.show(searchVC, sender: nil)
         self.searchPanelVC.track(scrollView: contentVC.tableView)
 
-        self.searchPanelVC.add(toParent: self)
+        self.searchPanelVC.addPanel(toParent: self)
 
         // Setup Detail panel
         self.detailPanelVC = FloatingPanelController()
@@ -207,7 +210,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
         self.detailPanelVC.show(contentVC, sender: nil)
         self.detailPanelVC.track(scrollView: contentVC.scrollView)
 
-        self.detailPanelVC.add(toParent: self)
+        self.detailPanelVC.addPanel(toParent: self)
     }
     ...
 }
@@ -215,7 +218,7 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
 
 ## Author
 
-Shin Yamamoto, shin@scenee.com
+Shin Yamamoto <shin@scenee.com>
 
 ## License