Version 2.5.0

Fix a tab bar's appearance in Samples app on iOS 15
Fix a crash in Samples app on iPad (#497 )
2021-09-28 08:43:42 +09:00 · 2021-09-28 08:43:42 +09:00 · 2021-09-25 10:11:38 +09:00 · 2021-09-25 10:06:23 +09:00 · 2021-09-18 12:11:12 +09:00 · 2021-09-18 11:20:52 +09:00
34 changed files with 1409 additions and 135 deletions
@@ -10,6 +10,19 @@ on:

 jobs:
  build:
+    runs-on: macOS-11
+    steps:
+    - uses: actions/checkout@v1
+    - name: "Swift 5.4"
+      run: xcodebuild -scheme FloatingPanel SWIFT_VERSION=5.4 clean build
+      env:
+        DEVELOPER_DIR: /Applications/Xcode_12.5.1.app/Contents/Developer
+    - name: "Swift 5.5"
+      run: xcodebuild -scheme FloatingPanel SWIFT_VERSION=5.5 clean build
+      env:
+        DEVELOPER_DIR: /Applications/Xcode_13.0.app/Contents/Developer
+
+  build_compat:
    runs-on: macOS-10.15
    steps:
    - uses: actions/checkout@v1
@@ -24,9 +37,22 @@ jobs:
    - name: "Swift 5.3"
      run: xcodebuild -scheme FloatingPanel SWIFT_VERSION=5.3 clean build
      env:
-        DEVELOPER_DIR: /Applications/Xcode_12.3.app/Contents/Developer
+        DEVELOPER_DIR: /Applications/Xcode_12.4.app/Contents/Developer

  testing:
+    runs-on: macOS-11
+    steps:
+    - uses: actions/checkout@v1
+    - name: "Testing in iOS 14.5"
+      run: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=14.5,name=iPhone 12 Pro'
+      env:
+        DEVELOPER_DIR: /Applications/Xcode_12.5.1.app/Contents/Developer
+    - name: "Testing in iOS 15.0"
+      run: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=15.0,name=iPhone 13 Pro'
+      env:
+        DEVELOPER_DIR: /Applications/Xcode_13.0.app/Contents/Developer
+
+  testing_compat:
    runs-on: macOS-10.15
    steps:
    - uses: actions/checkout@v1
@@ -34,15 +60,15 @@ jobs:
      run: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=13.7,name=iPhone 11 Pro'
      env:
        DEVELOPER_DIR: /Applications/Xcode_11.7.app/Contents/Developer
-    - name: "Testing in iOS 14.3"
-      run: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=14.3,name=iPhone 12 Pro'
+    - name: "Testing in iOS 14.4"
+      run: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=14.4,name=iPhone 12 Pro'
      env:
-        DEVELOPER_DIR: /Applications/Xcode_12.3.app/Contents/Developer
+        DEVELOPER_DIR: /Applications/Xcode_12.4.app/Contents/Developer

  example:
-    runs-on: macOS-10.15
+    runs-on: macOS-11
    env:
-      DEVELOPER_DIR: /Applications/Xcode_12.3.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_13.0.app/Contents/Developer
    steps:
    - uses: actions/checkout@v1
    - name: "Build Maps"
@@ -53,26 +79,23 @@ jobs:
      run: xcodebuild -workspace FloatingPanel.xcworkspace -scheme Samples -sdk iphonesimulator clean build

  swiftpm:
-    runs-on: macOS-10.15
+    runs-on: macOS-11
    env:
-      DEVELOPER_DIR: /Applications/Xcode_12.3.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_13.0.app/Contents/Developer
    steps:
    - uses: actions/checkout@v1
    - name: "Swift Package build"
      run: swift build -Xswiftc "-sdk" -Xswiftc "`xcrun --sdk iphonesimulator --show-sdk-path`" -Xswiftc "-target" -Xswiftc "x86_64-apple-ios14.3-simulator"

  carthage:
-    runs-on: macOS-10.15
-    env:
-      # Carthage doesn't fix issues on Xcode 12: https://github.com/Carthage/Carthage/releases/tag/0.36.0
-      DEVELOPER_DIR: /Applications/Xcode_11.7.app/Contents/Developer
+    runs-on: macOS-11
    steps:
    - uses: actions/checkout@v1
    - name: "Carthage build"
-      run: carthage build --no-skip-current
+      run: carthage build --use-xcframeworks --no-skip-current

  cocoapods:
-    runs-on: macOS-10.15
+    runs-on: macOS-11
    steps:
    - uses: actions/checkout@v1
    - name: "CocoaPods: pod lib lint"
@@ -1,20 +0,0 @@
-language: objective-c
-branches:
-  only:
-    - master
-env:
-  global:
-  - LANG=en_US.UTF-8
-  - LC_ALL=en_US.UTF-8
-jobs:
-  include:
-  - stage: "Tests"
-    script: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=10.3.1,name=iPhone SE (1st generation)'
-    osx_image: xcode11.6
-    name: "iPhone SE (iOS 10.3)"
-  - script: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=11.4,name=iPhone 7'
-    osx_image: xcode11.6
-    name: "iPhone 7 (iOS 11.4)"
-  - script: xcodebuild clean test -scheme FloatingPanel -workspace FloatingPanel.xcworkspace -destination 'platform=iOS Simulator,OS=12.4,name=iPhone X'
-    osx_image: xcode11.6
-    name: "iPhone X (iOS 12.4)"
@@ -0,0 +1,426 @@
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+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 64A5B7172691323900BCAA05 /* Project object */;
+}
@@ -0,0 +1,33 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+import MapKit
+
+struct ContentView: View {
+    @State private var region = MKCoordinateRegion(
+        center: CLLocationCoordinate2D(latitude: 37.623198015869235, longitude: -122.43066818432008),
+        span: MKCoordinateSpan(latitudeDelta: 0.4425100023575723, longitudeDelta: 0.28543697435880233)
+    )
+
+    var body: some View {
+        ZStack {
+            Map(coordinateRegion: $region)
+                .ignoresSafeArea()
+            statusBarBlur
+        }
+    }
+
+    private var statusBarBlur: some View {
+        GeometryReader { geometry in
+            VisualEffectBlur()
+                .frame(height: geometry.safeAreaInsets.top)
+                .ignoresSafeArea()
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
@@ -0,0 +1,121 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+/// A proxy for exposing the methods of the floating panel controller.
+public struct FloatingPanelProxy {
+    /// The associated floating panel controller.
+    public weak var fpc: FloatingPanelController?
+
+    /// Tracks the specified scroll view to correspond with the scroll.
+    ///
+    /// - Parameter scrollView: Specify a scroll view to continuously and
+    ///   seamlessly work in concert with interactions of the surface view.
+    public func track(scrollView: UIScrollView) {
+        fpc?.track(scrollView: scrollView)
+    }
+
+    /// Moves the floating panel to the specified position.
+    ///
+    /// - Parameters:
+    ///   - floatingPanelState: The state to move to.
+    ///   - animated: `true` to animate the transition to the new state; `false`
+    ///     otherwise.
+    public func move(
+        to floatingPanelState: FloatingPanelState,
+        animated: Bool,
+        completion: (() -> Void)? = nil
+    ) {
+        fpc?.move(to: floatingPanelState, animated: animated, completion: completion)
+    }
+}
+
+/// A view with an associated floating panel.
+struct FloatingPanelView<Content: View, FloatingPanelContent: View>: UIViewControllerRepresentable {
+    /// A type that conforms to the `FloatingPanelControllerDelegate` protocol.
+    var delegate: FloatingPanelControllerDelegate?
+
+    /// The behavior for determining the adjusted content offsets.
+    @Environment(\.contentInsetAdjustmentBehavior) var contentInsetAdjustmentBehavior
+
+    /// Constants that define how a panel content fills in the surface.
+    @Environment(\.contentMode) var contentMode
+
+    /// The floating panel grabber handle offset.
+    @Environment(\.grabberHandlePadding) var grabberHandlePadding
+
+    /// The floating panel `surfaceView` appearance.
+    @Environment(\.surfaceAppearance) var surfaceAppearance
+
+    /// The view builder that creates the floating panel parent view content.
+    @ViewBuilder var content: Content
+
+    /// The view builder that creates the floating panel content.
+    @ViewBuilder var floatingPanelContent: (FloatingPanelProxy) -> FloatingPanelContent
+
+    public func makeUIViewController(context: Context) -> UIHostingController<Content> {
+        let hostingController = UIHostingController(rootView: content)
+        hostingController.view.backgroundColor = nil
+        // We need to wait for the current runloop cycle to complete before our
+        // view is actually added (into the view hierarchy), otherwise the
+        // environment is not ready yet.
+        DispatchQueue.main.async {
+            context.coordinator.setupFloatingPanel(hostingController)
+        }
+        return hostingController
+    }
+
+    public func updateUIViewController(
+        _ uiViewController: UIHostingController<Content>,
+        context: Context
+    ) {
+        context.coordinator.updateIfNeeded()
+    }
+
+    public func makeCoordinator() -> Coordinator {
+        Coordinator(parent: self)
+    }
+
+    /// `FloatingPanelView` coordinator.
+    ///
+    /// Responsible to setup the view hierarchy and floating panel.
+    final class Coordinator {
+        private let parent: FloatingPanelView<Content, FloatingPanelContent>
+        private lazy var fpc = FloatingPanelController()
+
+        init(parent: FloatingPanelView<Content, FloatingPanelContent>) {
+            self.parent = parent
+        }
+
+        func setupFloatingPanel(_ parentViewController: UIViewController) {
+            updateIfNeeded()
+            let panelContent = parent.floatingPanelContent(FloatingPanelProxy(fpc: fpc))
+            let hostingViewController = UIHostingController(
+                rootView: panelContent,
+                ignoresKeyboard: true
+            )
+            hostingViewController.view.backgroundColor = nil
+            fpc.set(contentViewController: hostingViewController)
+            fpc.addPanel(toParent: parentViewController, at: 1, animated: false)
+        }
+
+        func updateIfNeeded() {
+            if fpc.contentInsetAdjustmentBehavior != parent.contentInsetAdjustmentBehavior {
+                fpc.contentInsetAdjustmentBehavior = parent.contentInsetAdjustmentBehavior
+            }
+            if fpc.contentMode != parent.contentMode {
+                fpc.contentMode = parent.contentMode
+            }
+            if fpc.delegate !== parent.delegate {
+                fpc.delegate = parent.delegate
+            }
+            if fpc.surfaceView.grabberHandlePadding != parent.grabberHandlePadding {
+                fpc.surfaceView.grabberHandlePadding = parent.grabberHandlePadding
+            }
+            if fpc.surfaceView.appearance != parent.surfaceAppearance {
+                fpc.surfaceView.appearance = parent.surfaceAppearance
+            }
+        }
+    }
+}
@@ -0,0 +1,44 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+/// This extension makes sure SwiftUI views are not affected by iOS keyboard.
+///
+/// Credits to https://steipete.me/posts/disabling-keyboard-avoidance-in-swiftui-uihostingcontroller/
+extension UIHostingController {
+    public convenience init(rootView: Content, ignoresKeyboard: Bool) {
+        self.init(rootView: rootView)
+
+        if ignoresKeyboard {
+            guard let viewClass = object_getClass(view) else { return }
+
+            let viewSubclassName = String(
+                cString: class_getName(viewClass)
+            ).appending("_IgnoresKeyboard")
+
+            if let viewSubclass = NSClassFromString(viewSubclassName) {
+                object_setClass(view, viewSubclass)
+            } else {
+                guard
+                    let viewClassNameUtf8 = (viewSubclassName as NSString).utf8String,
+                    let viewSubclass = objc_allocateClassPair(viewClass, viewClassNameUtf8, 0)
+                else { return }
+
+                if let method = class_getInstanceMethod(
+                    viewClass,
+                    NSSelectorFromString("keyboardWillShowWithNotification:")
+                ) {
+                    let keyboardWillShow: @convention(block) (AnyObject, AnyObject) -> Void = { _, _ in }
+                    class_addMethod(
+                        viewSubclass,
+                        NSSelectorFromString("keyboardWillShowWithNotification:"),
+                        imp_implementationWithBlock(keyboardWillShow),
+                        method_getTypeEncoding(method)
+                    )
+                }
+                objc_registerClassPair(viewSubclass)
+                object_setClass(view, viewSubclass)
+            }
+        }
+    }
+}
@@ -0,0 +1,31 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+extension View {
+    /// Presents a floating panel using the given closure as its content.
+    ///
+    /// The modifier's content view builder receives a `FloatingPanelProxy`
+    /// instance; you use the proxy's methods to interact with the associated
+    /// `FloatingPanelController`.
+    ///
+    /// - Parameters:
+    ///   - delegate: A type that conforms to the
+    ///     `FloatingPanelControllerDelegate` protocol. You have comprehensive
+    ///     control over the floating panel behavior when you use a delegate.
+    ///   - floatingPanelContent: The floating panel content. This view builder
+    ///     receives a `FloatingPanelProxy` instance that you use to interact
+    ///     with the `FloatingPanelController`.
+    public func floatingPanel<FloatingPanelContent: View>(
+        delegate: FloatingPanelControllerDelegate? = nil,
+        @ViewBuilder _ floatingPanelContent: @escaping (_: FloatingPanelProxy) -> FloatingPanelContent
+    ) -> some View {
+        FloatingPanelView(
+            delegate: delegate,
+            content: { self },
+            floatingPanelContent: floatingPanelContent
+        )
+        .ignoresSafeArea()
+    }
+}
@@ -0,0 +1,38 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+struct ContentInsetKey: EnvironmentKey {
+    static var defaultValue: FloatingPanelController.ContentInsetAdjustmentBehavior = .always
+}
+
+extension EnvironmentValues {
+    /// The behavior for determining the adjusted content offsets.
+    var contentInsetAdjustmentBehavior: FloatingPanelController.ContentInsetAdjustmentBehavior {
+        get { self[ContentInsetKey.self] }
+        set { self[ContentInsetKey.self] = newValue }
+    }
+}
+
+extension View {
+    /// Sets the content inset adjustment behavior for floating panels within
+    /// this view.
+    ///
+    /// Use this modifier to set a specific content inset adjustment behavior
+    /// for floating panel instances within a view:
+    ///
+    ///     MainView()
+    ///         .floatingPanel { _ in
+    ///             FloatingPanelContent()
+    ///         }
+    ///         .floatingPanelContentInsetAdjustmentBehavior(.never)
+    ///
+    /// - Parameter contentInsetAdjustmentBehavior: The content inset adjustment
+    ///   behavior to set.
+    public func floatingPanelContentInsetAdjustmentBehavior(
+        _ contentInsetAdjustmentBehavior: FloatingPanelController.ContentInsetAdjustmentBehavior
+    ) -> some View {
+        environment(\.contentInsetAdjustmentBehavior, contentInsetAdjustmentBehavior)
+    }
+}
@@ -0,0 +1,37 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+struct ContentModeKey: EnvironmentKey {
+    static var defaultValue: FloatingPanelController.ContentMode = .static
+}
+
+extension EnvironmentValues {
+    /// Used to determine how the floating panel controller lays out the content
+    /// view when the surface position changes.
+    var contentMode: FloatingPanelController.ContentMode {
+        get { self[ContentModeKey.self] }
+        set { self[ContentModeKey.self] = newValue }
+    }
+}
+
+extension View {
+    /// Sets the content mode for floating panels within this view.
+    ///
+    /// Use this modifier to set a specific content mode for floating panel
+    /// instances within a view:
+    ///
+    ///     MainView()
+    ///         .floatingPanel { _ in
+    ///             FloatingPanelContent()
+    ///         }
+    ///         .floatingPanelContentMode(.static)
+    ///
+    /// - Parameter contentMode: The content mode to set.
+    public func floatingPanelContentMode(
+        _ contentMode: FloatingPanelController.ContentMode
+    ) -> some View {
+        environment(\.contentMode, contentMode)
+    }
+}
@@ -0,0 +1,36 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+struct GrabberHandlePaddingKey: EnvironmentKey {
+    static var defaultValue: CGFloat = 6.0
+}
+
+extension EnvironmentValues {
+    /// The offset of the grabber handle from the interactive edge.
+    var grabberHandlePadding: CGFloat {
+        get { self[GrabberHandlePaddingKey.self] }
+        set { self[GrabberHandlePaddingKey.self] = newValue }
+    }
+}
+
+extension View {
+    /// Sets the grabber handle padding for floating panels within this view.
+    ///
+    /// Use this modifier to set a specific padding to floating panel instances
+    /// within a view:
+    ///
+    ///     MainView()
+    ///         .floatingPanel { _ in
+    ///             FloatingPanelContent()
+    ///         }
+    ///         .floatingPanelGrabberHandlePadding(16)
+    ///
+    /// - Parameter padding: The grabber handle padding to set.
+    public func floatingPanelGrabberHandlePadding(
+        _ padding: CGFloat
+    ) -> some View {
+        environment(\.grabberHandlePadding, padding)
+    }
+}
@@ -0,0 +1,44 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+import SwiftUI
+
+struct SurfaceAppearanceKey: EnvironmentKey {
+    static var defaultValue = SurfaceAppearance()
+}
+
+extension EnvironmentValues {
+    /// The appearance of a surface view.
+    var surfaceAppearance: SurfaceAppearance {
+        get { self[SurfaceAppearanceKey.self] }
+        set { self[SurfaceAppearanceKey.self] = newValue }
+    }
+}
+
+extension View {
+    /// Sets the surface appearance for floating panels within this view.
+    ///
+    /// Use this modifier to set a specific surface appearance for floating
+    /// panel instances within a view:
+    ///
+    ///     MainView()
+    ///         .floatingPanel { _ in
+    ///             FloatingPanelContent()
+    ///         }
+    ///         .floatingPanelSurfaceAppearance(.transparent)
+    ///
+    ///     extension SurfaceAppearance {
+    ///         static var transparent: SurfaceAppearance {
+    ///             let appearance = SurfaceAppearance()
+    ///             appearance.backgroundColor = .clear
+    ///             return appearance
+    ///         }
+    ///     }
+    ///
+    /// - Parameter surfaceAppearance: The surface appearance to set.
+    public func floatingPanelSurfaceAppearance(
+        _ surfaceAppearance: SurfaceAppearance
+    ) -> some View {
+        environment(\.surfaceAppearance, surfaceAppearance)
+    }
+}
@@ -0,0 +1,43 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+struct FloatingPanelContentView: View {
+    @State private var searchText = ""
+    @State private var isShowingCancelButton = false
+    var proxy: FloatingPanelProxy
+
+    var body: some View {
+        VStack(spacing: 0) {
+            searchBar
+            resultsList
+        }
+        // 👇🏻 for the floating panel grabber handle.
+        .padding(.top, 6)
+        .background(
+            VisualEffectBlur(blurStyle: .systemMaterial)
+                // ⚠️ If the `VisualEffectBlur` view receives taps, it's going
+                // to mess up with the whole panel and render it
+                // non-interactive, make sure it never receives any taps.
+                .allowsHitTesting(false)
+        )
+        .ignoresSafeArea()
+    }
+
+    var searchBar: some View {
+        SearchBar(
+            "Search for a place or address",
+            text: $searchText,
+            isShowingCancelButton: $isShowingCancelButton
+        ) { isFocused in
+            proxy.move(to: isFocused ? .full : .half, animated: true)
+            isShowingCancelButton = isFocused
+        } onCancel: {
+            UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+        }
+    }
+
+    var resultsList: some View {
+        ResultsList(onScrollViewCreated: proxy.track(scrollView:))
+    }
+}
@@ -0,0 +1,49 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+/// A `UITableViewCell` that accepts a SwiftUI view as its content.
+///
+/// Credits to https://noahgilmore.com/blog/swiftui-self-sizing-cells/ .
+public final class HostingCell<Content: View>: UITableViewCell {
+    private let hostingController = UIHostingController<Content?>(
+        rootView: nil,
+        ignoresKeyboard: true
+    )
+
+    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
+        super.init(style: style, reuseIdentifier: reuseIdentifier)
+        hostingController.view.backgroundColor = nil
+        backgroundColor = .clear
+    }
+
+    @available(*, unavailable)
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    public func set(rootView: Content, parentController: UIViewController) {
+        hostingController.rootView = rootView
+        hostingController.view.invalidateIntrinsicContentSize()
+
+        let requiresControllerMove = hostingController.parent != parentController
+        if requiresControllerMove {
+            parentController.addChild(hostingController)
+        }
+
+        if !contentView.subviews.contains(hostingController.view) {
+            contentView.addSubview(hostingController.view)
+            hostingController.view.translatesAutoresizingMaskIntoConstraints = false
+            contentView.addConstraints([
+                hostingController.view.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
+                hostingController.view.topAnchor.constraint(equalTo: contentView.topAnchor),
+                hostingController.view.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
+                hostingController.view.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
+            ])
+        }
+
+        if requiresControllerMove {
+            hostingController.didMove(toParent: parentController)
+        }
+    }
+}
@@ -0,0 +1,18 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+@main
+struct MapsApp: App {
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+                .floatingPanel(delegate: SearchPanelPhoneDelegate()) { proxy in
+                    FloatingPanelContentView(proxy: proxy)
+                }
+                .floatingPanelSurfaceAppearance(.phone)
+                .floatingPanelContentMode(.fitToBounds)
+                .floatingPanelContentInsetAdjustmentBehavior(.never)
+        }
+    }
+}
@@ -0,0 +1,74 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+/// UIKit's `UISearchBar`brought to SwiftUI.
+public struct SearchBar: UIViewRepresentable {
+    var title: String
+    @Binding var text: String
+    @Binding var isShowingCancelButton: Bool
+    var onEditingChanged: (Bool) -> Void
+    var onCancel: () -> Void
+
+    public init(
+        _ title: String = "",
+        text: Binding<String>,
+        isShowingCancelButton: Binding<Bool>,
+        onEditingChanged: @escaping (Bool) -> Void = { _ in },
+        onCancel: @escaping () -> Void
+    ) {
+        self.title = title
+        self._text = text
+        self._isShowingCancelButton = isShowingCancelButton
+        self.onEditingChanged = onEditingChanged
+        self.onCancel = onCancel
+    }
+
+    public func makeUIView(context: UIViewRepresentableContext<SearchBar>) -> UISearchBar {
+        let searchBar = UISearchBar(frame: .zero)
+        searchBar.searchBarStyle = .minimal
+        searchBar.isTranslucent = true
+        searchBar.placeholder = title
+        searchBar.delegate = context.coordinator
+        searchBar.autocapitalizationType = .none
+        return searchBar
+    }
+
+    public func updateUIView(_ uiView: UISearchBar, context: UIViewRepresentableContext<SearchBar>) {
+        uiView.text = text
+        uiView.placeholder = title
+        uiView.setShowsCancelButton(isShowingCancelButton, animated: true)
+    }
+
+    public func makeCoordinator() -> SearchBar.Coordinator {
+        Coordinator(parent: self)
+    }
+
+    public class Coordinator: NSObject, UISearchBarDelegate {
+        var parent: SearchBar
+
+        init(parent: SearchBar) {
+            self.parent = parent
+        }
+
+        public func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
+            parent.text = searchText
+        }
+
+        public func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
+            parent.onEditingChanged(true)
+        }
+
+        public func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
+            searchBar.resignFirstResponder()
+        }
+
+        public func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
+            parent.onEditingChanged(false)
+        }
+
+        public func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
+            parent.onCancel()
+        }
+    }
+}
@@ -0,0 +1,69 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+@available(iOS, introduced: 13, deprecated: 15, message: "Use iOS 15 material API.")
+public struct VisualEffectBlur<Content: View>: UIViewRepresentable {
+    var blurStyle: UIBlurEffect.Style = .systemMaterial
+    var vibrancyStyle: UIVibrancyEffectStyle? = nil
+    @ViewBuilder var content: Content
+
+    public func makeUIView(context: Context) -> UIVisualEffectView {
+        context.coordinator.blurView
+    }
+
+    public func updateUIView(_ view: UIVisualEffectView, context: Context) {
+        context.coordinator.update(
+            content: content,
+            blurStyle: blurStyle,
+            vibrancyStyle: vibrancyStyle
+        )
+    }
+
+    public func makeCoordinator() -> Coordinator {
+        Coordinator(content: content)
+    }
+
+    public class Coordinator {
+        let blurView = UIVisualEffectView()
+        let vibrancyView = UIVisualEffectView()
+        let hostingController: UIHostingController<Content>
+
+        init(content: Content) {
+            hostingController = UIHostingController(rootView: content)
+            hostingController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
+            hostingController.view.backgroundColor = nil
+            blurView.contentView.addSubview(vibrancyView)
+
+            blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
+            vibrancyView.contentView.addSubview(hostingController.view)
+            vibrancyView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
+        }
+
+        func update(content: Content, blurStyle: UIBlurEffect.Style, vibrancyStyle: UIVibrancyEffectStyle?) {
+            hostingController.rootView = content
+
+            let blurEffect = UIBlurEffect(style: blurStyle)
+            blurView.effect = blurEffect
+
+            if let vibrancyStyle = vibrancyStyle {
+                vibrancyView.effect = UIVibrancyEffect(blurEffect: blurEffect, style: vibrancyStyle)
+            } else {
+                vibrancyView.effect = nil
+            }
+
+            hostingController.view.setNeedsDisplay()
+        }
+    }
+}
+
+public extension VisualEffectBlur where Content == EmptyView {
+    init(
+        blurStyle: UIBlurEffect.Style = .systemMaterial,
+        vibrancyStyle: UIVibrancyEffectStyle? = nil
+    ) {
+        self.init(blurStyle: blurStyle, vibrancyStyle: vibrancyStyle) {
+            EmptyView()
+        }
+    }
+}
@@ -0,0 +1,138 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import SwiftUI
+
+struct ResultsList: UIViewControllerRepresentable {
+    var onScrollViewCreated: (_ scrollView: UIScrollView) -> Void
+
+    func makeUIViewController(
+        context: Context
+    ) -> ResultsTableViewController {
+        let rtvc = ResultsTableViewController()
+        onScrollViewCreated(rtvc.tableView)
+        return rtvc
+    }
+
+    func updateUIViewController(
+        _ uiViewController: ResultsTableViewController,
+        context: Context
+    ) {
+    }
+}
+
+final class ResultsTableViewController: UITableViewController {
+    private let reuseIdentifier = "HostingCell<ResultListCell>"
+
+    private enum Section: CaseIterable {
+        case main
+    }
+
+    private struct TableViewItem: Hashable {
+        let color: Color
+        let symbolName: String
+        let title: String
+        let description: String
+    }
+
+    private var dataSource: UITableViewDiffableDataSource<Section, TableViewItem>?
+
+    // MARK: Lifecycle
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        tableView.backgroundColor = nil
+        tableView.register(HostingCell<ResultListCell>.self, forCellReuseIdentifier: reuseIdentifier)
+        configureDataSource()
+    }
+
+    // MARK: UITableViewDataSource
+
+    private func configureDataSource() {
+        dataSource = UITableViewDiffableDataSource
+        <Section, TableViewItem>(tableView: tableView) { [weak self] tableView, _, tableItem -> UITableViewCell? in
+            self?.tableView(tableView, cellForTableViewItem: tableItem)
+        }
+        tableView.dataSource = dataSource
+
+        var snapshot = NSDiffableDataSourceSnapshot<Section, TableViewItem>()
+        snapshot.appendSections([.main])
+        let results: [TableViewItem] = (1...100).map {
+            TableViewItem(
+                color: Color(red: 255 / 255.0, green: 94 / 255.0 , blue: 94 / 255.0),
+                symbolName: "heart.fill",
+                title: "Favorites",
+                description: "\($0) Places"
+            )
+        }
+        snapshot.appendItems(results, toSection: .main)
+        dataSource?.apply(snapshot, animatingDifferences: false)
+    }
+
+    private func tableView(
+        _ tableView: UITableView,
+        cellForTableViewItem tableViewItem: TableViewItem
+    ) -> UITableViewCell {
+        let cell: HostingCell<ResultListCell> = tableView.dequeueReusableCell(withIdentifier: reuseIdentifier) as! HostingCell<ResultListCell>
+        setupResultTableViewCell(
+            cell,
+            color: tableViewItem.color,
+            symbolName: tableViewItem.symbolName,
+            title: tableViewItem.title,
+            description: tableViewItem.description
+        )
+        return cell
+    }
+
+    private func setupResultTableViewCell(
+        _ cell: HostingCell<ResultListCell>,
+        color: Color,
+        symbolName: String,
+        title: String,
+        description: String
+    ) {
+        cell.set(
+            rootView: ResultListCell(
+                color: color,
+                symbolName: symbolName,
+                title: title,
+                description: description
+            ),
+            parentController: self
+        )
+    }
+
+    // MARK: UITableViewDelegate
+
+    override func tableView(
+        _ tableView: UITableView,
+        didSelectRowAt indexPath: IndexPath
+    ) {
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+}
+
+struct ResultListCell: View {
+    let color: Color
+    let symbolName: String
+    let title: String
+    let description: String
+
+    var body: some View {
+        HStack {
+            Image(systemName: symbolName)
+                .foregroundColor(.white)
+                .font(.headline)
+                .padding(8)
+                .background(Circle().fill(color))
+            VStack(alignment: .leading, spacing: 8) {
+                Text(title)
+                    .font(.system(size: 20, weight: .bold))
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                Text(description)
+                    .font(.system(size: 13))
+                    .foregroundColor(Color(.secondaryLabel))
+            }
+        }
+        .padding()
+    }
+}
@@ -0,0 +1,11 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+
+final class SearchPanelPhoneDelegate: FloatingPanelControllerDelegate {
+    func floatingPanelWillBeginDragging(_ vc: FloatingPanelController) {
+        if vc.state == .full {
+            UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+        }
+    }
+}
@@ -0,0 +1,13 @@
+// Copyright 2021 the FloatingPanel authors. All rights reserved. MIT license.
+
+import FloatingPanel
+
+extension FloatingPanel.SurfaceAppearance {
+    static var phone: SurfaceAppearance {
+        let appearance = SurfaceAppearance()
+        appearance.cornerCurve = .continuous
+        appearance.cornerRadius = 8.0
+        appearance.backgroundColor = .clear
+        return appearance
+    }
+}
@@ -81,7 +81,7 @@ class ViewController: UIViewController {
    }

    func layoutPanelForPhone() {
-        fpc.track(scrollView: searchVC.tableView) // Only track the tabvle view on iPhone
+        fpc.track(scrollView: searchVC.tableView) // Only track the table view on iPhone
        fpc.addPanel(toParent: self, animated: true)
        fpc.setAppearanceForPhone()
        detailFpc.setAppearanceForPhone()
@@ -87,12 +87,12 @@ class DebugTableViewController: InspectableViewController {
            }
        }

-        func execute(for vc: DebugTableViewController) {
+        func execute(for vc: DebugTableViewController, sourceView: UIView) {
            switch self {
            case .animateScroll:
                vc.animateScroll()
            case .changeContentSize:
-                vc.changeContentSize()
+                vc.changeContentSize(sourceView: sourceView)
            case .moveToFull:
                vc.moveToFull()
            case .moveToHalf:
@@ -165,8 +165,8 @@ class DebugTableViewController: InspectableViewController {

    // MARK: - Actions

-    private func execute(command: Command) {
-        command.execute(for: self)
+    private func execute(command: Command, sourceView: UIView) {
+        command.execute(for: self, sourceView: sourceView)
    }

    @objc
@@ -177,7 +177,7 @@ class DebugTableViewController: InspectableViewController {
    }

    @objc
-    private func changeContentSize() {
+    private func changeContentSize(sourceView: UIView) {
        let actionSheet = UIAlertController(title: "Change content size", message: "", preferredStyle: .actionSheet)
        actionSheet.addAction(UIAlertAction(title: "Large", style: .default, handler: { (_) in
            self.itemHeight = 66.0
@@ -201,6 +201,11 @@ class DebugTableViewController: InspectableViewController {
            self.changeItems(3)
        }))

+        if let popoverController = actionSheet.popoverPresentationController {
+            popoverController.sourceView = sourceView
+            popoverController.sourceRect = sourceView.bounds
+        }
+
        self.present(actionSheet, animated: true, completion: nil)
    }

@@ -250,7 +255,8 @@ extension DebugTableViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        print("DebugTableViewController -- select row \(indexPath.row)")
        guard let action = Command(rawValue: indexPath.row) else { return }
-        execute(command: action)
+        let cell = tableView.cellForRow(at: indexPath)
+        execute(command: action, sourceView: cell ?? tableView)
    }

    func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
@@ -41,6 +41,10 @@ final class TabBarContentViewController: UIViewController {
        fpc.addPanel(toParent: self)


+        if #available(iOS 15, *) {
+            tabBarController?.tabBar.scrollEdgeAppearance = UITabBarAppearance()
+        }
+
        switch tabBarItem.tag {
        case 1:
            fpc.behavior = TwoTabBarPanelBehavior()
@@ -36,7 +36,7 @@ static FloatingPanelState *_lastQuart;
    [fpc setBehavior:[MyFloatingPanelBehavior new]];
    [fpc setRemovalInteractionEnabled:NO];

-    [fpc addPanelToParent:self at:self.view.subviews.count  animated:NO];
+    [fpc addPanelToParent:self at:self.view.subviews.count animated:NO completion:nil];
    [fpc moveToState:FloatingPanelState.Tip animated:true completion:nil];

    [self updateAppearance: fpc];
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|

  s.name                = "FloatingPanel"
-  s.version             = "2.3.1"
+  s.version             = "2.5.0"
  s.summary             = "FloatingPanel is a clean and easy-to-use UI component of a floating panel interface."
  s.description         = <<-DESC
 FloatingPanel is a clean and easy-to-use UI component for a new interface introduced in Apple Maps, Shortcuts and Stocks app.
@@ -10,6 +10,9 @@
   <Group
      location = "group:Examples"
      name = "Examples">
+      <FileRef
+         location = "group:Maps-SwiftUI/Maps-SwiftUI.xcodeproj">
+      </FileRef>
      <FileRef
         location = "group:Maps/Maps.xcodeproj">
      </FileRef>
@@ -55,6 +55,7 @@ The new interface displays the related contents and utilities in parallel as a u
    - [Create an additional floating panel for a detail](#create-an-additional-floating-panel-for-a-detail)
    - [Move a position with an animation](#move-a-position-with-an-animation)
    - [Work your contents together with a floating panel behavior](#work-your-contents-together-with-a-floating-panel-behavior)
+    - [Enabling the tap-to-dismiss action of the backdrop view](#enabling-the-tap-to-dismiss-action-of-the-backdrop-view)
 - [Notes](#notes)
    - ['Show' or 'Show Detail' Segues from `FloatingPanelController`'s content view controller](#show-or-show-detail-segues-from-floatingpanelcontrollers-content-view-controller)
    - [UISearchController issue](#uisearchcontroller-issue)
@@ -564,8 +565,8 @@ override func viewDidLoad() {
    surfaceTapGesture.isEnabled = (fpc.position == .tip)
 }

-// Enable `surfaceTapGesture` only at `tip` position
-func floatingPanelDidChangePosition(_ vc: FloatingPanelController) {
+// Enable `surfaceTapGesture` only at `tip` state
+func floatingPanelDidChangeState(_ vc: FloatingPanelController) {
    surfaceTapGesture.isEnabled = (vc.position == .tip)
 }
 ```
@@ -658,6 +659,14 @@ class ViewController: UIViewController, FloatingPanelControllerDelegate {
 }
 ```

+### Enabling the tap-to-dismiss action of the backdrop view
+
+The tap-to-dismiss action is disabled by default. So it needs to be enabled as below.
+
+```swift
+fpc.backdropView.dismissalTapGestureRecognizer.isEnabled = true
+```
+
 ## Notes

 ### 'Show' or 'Show Detail' Segues from `FloatingPanelController`'s content view controller
@@ -7,5 +7,5 @@ import UIKit
 public class BackdropView: UIView {

    /// The gesture recognizer for tap gestures to dismiss a panel.
-    public var dismissalTapGestureRecognizer: UITapGestureRecognizer!
+    @objc public var dismissalTapGestureRecognizer: UITapGestureRecognizer!
 }
@@ -26,10 +26,12 @@ import UIKit
    @objc(floatingPanel:animatorForDismissingWithVelocity:) optional
    func floatingPanel(_ fpc: FloatingPanelController, animatorForDismissingWith velocity: CGVector) -> UIViewPropertyAnimator

-    /// Called when a panel has changed to a new position. Can be called inside an animation block, so any
-    /// view properties set inside this function will be automatically animated alongside a panel.
+    /// Called when a panel has changed to a new state.
+    ///
+    /// This can be called inside an animation block for presenting, dismissing a panel or moving a panel with your
+    /// animation. So any view properties set inside this function will be automatically animated alongside a panel.
    @objc optional
-    func floatingPanelDidChangePosition(_ fpc: FloatingPanelController)
+    func floatingPanelDidChangeState(_ fpc: FloatingPanelController)

    /// Asks the delegate if dragging should begin by the pan gesture recognizer.
    @objc optional
@@ -396,20 +398,8 @@ open class FloatingPanelController: UIViewController {
    }

    private func activateLayout(forceLayout: Bool = false) {
-        floatingPanel.layoutAdapter.prepareLayout()
-
-        // preserve the current content offset if contentInsetAdjustmentBehavior is `.always`
-        var contentOffset: CGPoint?
-        if contentInsetAdjustmentBehavior == .always {
-            contentOffset = trackingScrollView?.contentOffset
-        }
-
-        floatingPanel.layoutAdapter.updateStaticConstraint()
-        floatingPanel.layoutAdapter.activateLayout(for: floatingPanel.state, forceLayout: forceLayout)
-
-        if let contentOffset = contentOffset {
-            trackingScrollView?.contentOffset = contentOffset
-        }
+        floatingPanel.activateLayout(forceLayout: forceLayout,
+                                     contentInsetAdjustmentBehavior: contentInsetAdjustmentBehavior)
    }

    func remove() {
@@ -427,6 +417,9 @@ open class FloatingPanelController: UIViewController {
    // MARK: - Container view controller interface

    /// Shows the surface view at the initial position defined by the current layout
+    /// - Parameters:
+    ///     - animated: Pass true to animate the presentation; otherwise, pass false.
+    ///     - completion: The block to execute after the presentation finishes. This block has no return value and takes no parameters. You may specify nil for this parameter.
    @objc(show:completion:)
    public func show(animated: Bool = false, completion: (() -> Void)? = nil) {
        // Must apply the current layout here
@@ -468,8 +461,9 @@ open class FloatingPanelController: UIViewController {
    ///     - parent: A parent view controller object that displays FloatingPanelController's view. A container view controller object isn't applicable.
    ///     - viewIndex: Insert the surface view managed by the controller below the specified view index. By default, the surface view will be added to the end of the parent list of subviews.
    ///     - animated: Pass true to animate the presentation; otherwise, pass false.
-    @objc(addPanelToParent:at:animated:)
-    public func addPanel(toParent parent: UIViewController, at viewIndex: Int = -1, animated: Bool = false) {
+    ///     - completion: The block to execute after the presentation finishes. This block has no return value and takes no parameters. You may specify nil for this parameter.
+    @objc(addPanelToParent:at:animated:completion:)
+    public func addPanel(toParent parent: UIViewController, at viewIndex: Int = -1, animated: Bool = false, completion: (() -> Void)? = nil) {
        guard self.parent == nil else {
            log.warning("Already added to a parent(\(parent))")
            return
@@ -500,6 +494,7 @@ open class FloatingPanelController: UIViewController {
        show(animated: animated) { [weak self] in
            guard let self = self else { return }
            self.didMove(toParent: parent)
+            completion?()
        }
    }

@@ -531,6 +526,7 @@ open class FloatingPanelController: UIViewController {
    }

    /// Moves the position to the specified position.
+    ///
    /// - Parameters:
    ///     - to: Pass a FloatingPanelPosition value to move the surface view to the position.
    ///     - animated: Pass true to animate the presentation; otherwise, pass false.
@@ -24,7 +24,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        didSet {
            log.debug("state changed: \(oldValue) -> \(state)")
            if let vc = ownerVC {
-                vc.delegate?.floatingPanelDidChangePosition?(vc)
+                vc.delegate?.floatingPanelDidChangeState?(vc)
            }
        }
    }
@@ -107,7 +107,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
            completion?()
            return
        }
-        if state != layoutAdapter.edgeMostState {
+        if state != layoutAdapter.mostExpandedState {
            lockScrollView()
        }
        tearDownActiveInteraction()
@@ -117,7 +117,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        if animated {
            let updateScrollView: () -> Void = { [weak self] in
                guard let self = self else { return }
-                if self.state == self.layoutAdapter.edgeMostState, abs(self.layoutAdapter.offsetFromEdgeMost) <= 1.0 {
+                if self.state == self.layoutAdapter.mostExpandedState, abs(self.layoutAdapter.offsetFromMostExpandedAnchor) <= 1.0 {
                    self.unlockScrollView()
                } else {
                    self.lockScrollView()
@@ -173,7 +173,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        } else {
            self.state = to
            self.updateLayout(to: to)
-            if self.state == self.layoutAdapter.edgeMostState {
+            if self.state == self.layoutAdapter.mostExpandedState {
                self.unlockScrollView()
            } else {
                self.lockScrollView()
@@ -186,6 +186,30 @@ class Core: NSObject, UIGestureRecognizerDelegate {

    // MARK: - Layout update

+    func activateLayout(forceLayout: Bool = false,
+                        contentInsetAdjustmentBehavior: FloatingPanelController.ContentInsetAdjustmentBehavior) {
+        layoutAdapter.prepareLayout()
+
+        // preserve the current content offset if contentInsetAdjustmentBehavior is `.always`
+        var contentOffset: CGPoint?
+        if contentInsetAdjustmentBehavior == .always {
+            contentOffset = scrollView?.contentOffset
+        }
+
+        layoutAdapter.updateStaticConstraint()
+        layoutAdapter.activateLayout(for: state, forceLayout: true)
+
+        // Update the backdrop alpha only when called in `Controller.show(animated:completion:)`
+        // Because that prevents a backdrop flicking just before presenting a panel(#466).
+        if forceLayout {
+            backdropView.alpha = getBackdropAlpha(for: state)
+        }
+
+        if let contentOffset = contentOffset {
+            scrollView?.contentOffset = contentOffset
+        }
+    }
+
    private func updateLayout(to target: FloatingPanelState) {
        self.layoutAdapter.activateLayout(for: target, forceLayout: true)
        self.backdropView.alpha = self.getBackdropAlpha(for: target)
@@ -201,8 +225,8 @@ class Core: NSObject, UIGestureRecognizerDelegate {

        let segment = layoutAdapter.segment(at: cur, forward: forwardY)

-        let lowerState = segment.lower ?? layoutAdapter.edgeMostState
-        let upperState = segment.upper ?? layoutAdapter.edgeLeastState
+        let lowerState = segment.lower ?? layoutAdapter.mostExpandedState
+        let upperState = segment.upper ?? layoutAdapter.leastExpandedState

        let preState = forwardY ? lowerState : upperState
        let nextState = forwardY ? upperState : lowerState
@@ -353,7 +377,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
            let velocity = value(of: panGesture.velocity(in: panGesture.view))
            let location = panGesture.location(in: surfaceView)

-            let belowEdgeMost = 0 > layoutAdapter.offsetFromEdgeMost + (1.0 / surfaceView.fp_displayScale)
+            let belowEdgeMost = 0 > layoutAdapter.offsetFromMostExpandedAnchor + (1.0 / surfaceView.fp_displayScale)

            log.debug("""
                scroll gesture(\(state):\(panGesture.state)) -- \
@@ -367,7 +391,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {

            if belowEdgeMost {
                // Scroll offset pinning
-                if state == layoutAdapter.edgeMostState {
+                if state == layoutAdapter.mostExpandedState {
                    if interactionInProgress {
                        log.debug("settle offset --", value(of: initialScrollOffset))
                        stopScrolling(at: initialScrollOffset)
@@ -385,7 +409,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
                if interactionInProgress {
                    lockScrollView()
                } else {
-                    if state == layoutAdapter.edgeMostState, self.transitionAnimator == nil {
+                    if state == layoutAdapter.mostExpandedState, self.transitionAnimator == nil {
                        switch layoutAdapter.position {
                        case .top, .left:
                            if offsetDiff < 0 && velocity > 0 {
@@ -413,14 +437,14 @@ class Core: NSObject, UIGestureRecognizerDelegate {
                            return
                        }
                    }
-                    if state == layoutAdapter.edgeMostState {
+                    if state == layoutAdapter.mostExpandedState {
                        // Adjust a small gap of the scroll offset just after swiping down starts in the grabber area.
                        if grabberAreaFrame.contains(location), grabberAreaFrame.contains(initialLocation) {
                            stopScrolling(at: initialScrollOffset)
                        }
                    }
                } else {
-                    if state == layoutAdapter.edgeMostState {
+                    if state == layoutAdapter.mostExpandedState {
                        switch layoutAdapter.position {
                        case .top, .left:
                            if velocity < 0, !allowScrollPanGesture(for: scrollView) {
@@ -506,15 +530,15 @@ class Core: NSObject, UIGestureRecognizerDelegate {
            endAttraction(false)
        }
        if let animator = self.transitionAnimator {
-            guard 0 >= layoutAdapter.offsetFromEdgeMost else { return }
+            guard 0 >= layoutAdapter.offsetFromMostExpandedAnchor else { return }
            log.debug("a panel animation(interruptible: \(animator.isInterruptible)) interrupted!!!")
            if animator.isInterruptible {
                animator.stopAnimation(false)
                // A user can stop a panel at the nearest Y of a target position so this fine-tunes
                // the a small gap between the presentation layer frame and model layer frame
                // to unlock scroll view properly at finishAnimation(at:)
-                if abs(layoutAdapter.offsetFromEdgeMost) <= 1.0 {
-                    layoutAdapter.surfaceLocation = layoutAdapter.surfaceLocation(for: layoutAdapter.edgeMostState)
+                if abs(layoutAdapter.offsetFromMostExpandedAnchor) <= 1.0 {
+                    layoutAdapter.surfaceLocation = layoutAdapter.surfaceLocation(for: layoutAdapter.mostExpandedState)
                }
                animator.finishAnimation(at: .current)
            } else {
@@ -540,9 +564,9 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        }

        guard
-            state == layoutAdapter.edgeMostState,  // When not top most(i.e. .full), don't scroll.
+            state == layoutAdapter.mostExpandedState,  // When not top most(i.e. .full), don't scroll.
            interactionInProgress == false,        // When interaction already in progress, don't scroll.
-            0 == layoutAdapter.offsetFromEdgeMost
+            0 == layoutAdapter.offsetFromMostExpandedAnchor
        else {
            return false
        }
@@ -602,7 +626,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        log.debug("panningBegan -- location = \(value(of: location))")

        guard let scrollView = scrollView else { return }
-        if state == layoutAdapter.edgeMostState {
+        if state == layoutAdapter.mostExpandedState {
            if grabberAreaFrame.contains(location) {
                initialScrollOffset = scrollView.contentOffset
            }
@@ -669,7 +693,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
            return
        }

-        stopScrollDeceleration = (0 > layoutAdapter.offsetFromEdgeMost + (1.0 / surfaceView.fp_displayScale)) // Projecting the dragging to the scroll dragging or not
+        stopScrollDeceleration = (0 > layoutAdapter.offsetFromMostExpandedAnchor + (1.0 / surfaceView.fp_displayScale)) // Projecting the dragging to the scroll dragging or not
        if stopScrollDeceleration {
            DispatchQueue.main.async { [weak self] in
                guard let self = self else { return }
@@ -719,14 +743,14 @@ class Core: NSObject, UIGestureRecognizerDelegate {

        // Workaround: Disable a tracking scroll to prevent bouncing a scroll content in a panel animating
        let isScrollEnabled = scrollView?.isScrollEnabled
-        if let scrollView = scrollView, targetPosition != layoutAdapter.edgeMostState {
+        if let scrollView = scrollView, targetPosition != layoutAdapter.mostExpandedState {
            scrollView.isScrollEnabled = false
        }

        startAttraction(to: targetPosition, with: velocity)

        // Workaround: Reset `self.scrollView.isScrollEnabled`
-        if let scrollView = scrollView, targetPosition != layoutAdapter.edgeMostState,
+        if let scrollView = scrollView, targetPosition != layoutAdapter.mostExpandedState,
            let isScrollEnabled = isScrollEnabled {
            scrollView.isScrollEnabled = isScrollEnabled
        }
@@ -760,7 +784,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        var offset: CGPoint = .zero

        initialSurfaceLocation = layoutAdapter.surfaceLocation
-        if state == layoutAdapter.edgeMostState, let scrollView = scrollView {
+        if state == layoutAdapter.mostExpandedState, let scrollView = scrollView {
            if grabberAreaFrame.contains(location) {
                initialScrollOffset = scrollView.contentOffset
            } else {
@@ -805,7 +829,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        interactionInProgress = false

        // Prevent to keep a scroll view indicator visible at the half/tip position
-        if targetPosition != layoutAdapter.edgeMostState {
+        if targetPosition != layoutAdapter.mostExpandedState {
            lockScrollView()
        }

@@ -813,6 +837,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
    }

    private func tearDownActiveInteraction() {
+        guard panGestureRecognizer.isEnabled else { return }
        // Cancel the pan gesture so that panningEnd(with:velocity:) is called
        panGestureRecognizer.isEnabled = false
        panGestureRecognizer.isEnabled = true
@@ -882,9 +907,9 @@ class Core: NSObject, UIGestureRecognizerDelegate {
        log.debug("""
            finishAnimation -- state = \(state) \
            surface location = \(layoutAdapter.surfaceLocation) \
-            edge most position = \(layoutAdapter.surfaceLocation(for: layoutAdapter.edgeMostState))
+            edge most position = \(layoutAdapter.surfaceLocation(for: layoutAdapter.mostExpandedState))
            """)
-        if finished, state == layoutAdapter.edgeMostState, abs(layoutAdapter.offsetFromEdgeMost) <= 1.0 {
+        if finished, state == layoutAdapter.mostExpandedState, abs(layoutAdapter.offsetFromMostExpandedAnchor) <= 1.0 {
            unlockScrollView()
        }
    }
@@ -911,7 +936,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
    func targetPosition(from currentY: CGFloat, with velocity: CGFloat) -> (FloatingPanelState) {
        log.debug("targetPosition -- currentY = \(currentY), velocity = \(velocity)")

-        let sortedPositions = layoutAdapter.sortedDirectionalStates
+        let sortedPositions = layoutAdapter.sortedAnchorStatesByCoordinate

        guard sortedPositions.count > 1 else {
            return state
@@ -919,7 +944,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {

        // Projection
        let decelerationRate = behaviorAdapter.momentumProjectionRate
-        let baseY = abs(layoutAdapter.position(for: layoutAdapter.edgeLeastState) - layoutAdapter.position(for: layoutAdapter.edgeMostState))
+        let baseY = abs(layoutAdapter.position(for: layoutAdapter.leastExpandedState) - layoutAdapter.position(for: layoutAdapter.mostExpandedState))
        let vecY = velocity / baseY
        var pY = project(initialVelocity: vecY, decelerationRate: decelerationRate) * baseY + currentY

@@ -1015,7 +1040,7 @@ class Core: NSObject, UIGestureRecognizerDelegate {
    }

    private func allowScrollPanGesture(for scrollView: UIScrollView) -> Bool {
-        guard state == layoutAdapter.edgeMostState else { return false }
+        guard state == layoutAdapter.mostExpandedState else { return false }
        var offsetY: CGFloat = 0
        switch layoutAdapter.position {
        case .top, .left:
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.3.1</string>
+	<string>2.5.0</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 </dict>
@@ -92,10 +92,16 @@ class LayoutAdapter {

    private var staticConstraint: NSLayoutConstraint?

-    private var activeStates: Set<FloatingPanelState> {
+    private var anchorStates: Set<FloatingPanelState> {
        return Set(layout.anchors.keys)
    }

+    private var sortedAnchorStates: [FloatingPanelState] {
+        return anchorStates.sorted(by: {
+            return $0.order < $1.order
+        })
+    }
+
    var initialState: FloatingPanelState {
        layout.initialState
    }
@@ -104,18 +110,12 @@ class LayoutAdapter {
        layout.position
    }

-    var orderedStates: [FloatingPanelState] {
-        return activeStates.sorted(by: {
-            return $0.order < $1.order
-        })
-    }
-
    var validStates: Set<FloatingPanelState> {
-        return activeStates.union([.hidden])
+        return anchorStates.union([.hidden])
    }

-    var sortedDirectionalStates: [FloatingPanelState] {
-        return activeStates.sorted(by: {
+    var sortedAnchorStatesByCoordinate: [FloatingPanelState] {
+        return anchorStates.sorted(by: {
            switch position {
            case .top, .left:
                return $0.order < $1.order
@@ -125,30 +125,26 @@ class LayoutAdapter {
        })
    }

-    private var directionalLeastState: FloatingPanelState {
-        return sortedDirectionalStates.first ?? .hidden
+    private var leastCoordinateState: FloatingPanelState {
+        return sortedAnchorStatesByCoordinate.first ?? .hidden
    }

-    private var directionalMostState: FloatingPanelState {
-        return sortedDirectionalStates.last ?? .hidden
+    private var mostCoordinateState: FloatingPanelState {
+        return sortedAnchorStatesByCoordinate.last ?? .hidden
    }

-    var edgeLeastState: FloatingPanelState {
-        if orderedStates.count == 1 {
+    var leastExpandedState: FloatingPanelState {
+        if sortedAnchorStates.count == 1 {
            return .hidden
        }
-        return orderedStates.first ?? .hidden
+        return sortedAnchorStates.first ?? .hidden
    }

-    var edgeMostState: FloatingPanelState {
-        if orderedStates.count == 1 {
-            return orderedStates[0]
+    var mostExpandedState: FloatingPanelState {
+        if sortedAnchorStates.count == 1 {
+            return sortedAnchorStates[0]
        }
-        return orderedStates.last ?? .hidden
-    }
-
-    var edgeMostY: CGFloat {
-        return position(for: edgeMostState)
+        return sortedAnchorStates.last ?? .hidden
    }

    var adjustedContentInsets: UIEdgeInsets {
@@ -265,12 +261,12 @@ class LayoutAdapter {
        }
    }

-    var offsetFromEdgeMost: CGFloat {
+    var offsetFromMostExpandedAnchor: CGFloat {
        switch position {
        case .top, .left:
-            return edgePosition(surfaceView.presentationFrame) - position(for: directionalMostState)
+            return edgePosition(surfaceView.presentationFrame) - position(for: mostExpandedState)
        case .bottom, .right:
-            return position(for: directionalLeastState) - edgePosition(surfaceView.presentationFrame)
+            return position(for: mostExpandedState) - edgePosition(surfaceView.presentationFrame)
        }
    }

@@ -641,7 +637,7 @@ class LayoutAdapter {
            return
        }

-        let anchor = layout.anchors[self.edgeMostState]!
+        let anchor = layout.anchors[self.mostExpandedState]!
        let surfaceAnchor = position.mainDimensionAnchor(surfaceView)
        switch anchor {
        case let anchor as FloatingPanelIntrinsicLayoutAnchor:
@@ -662,11 +658,11 @@ class LayoutAdapter {
        default:
            switch position {
            case .top, .left:
-                staticConstraint = surfaceAnchor.constraint(equalToConstant: position(for: self.directionalMostState))
+                staticConstraint = surfaceAnchor.constraint(equalToConstant: position(for: self.mostCoordinateState))
            case .bottom, .right:
                let rootViewAnchor = position.mainDimensionAnchor(vc.view)
                staticConstraint = rootViewAnchor.constraint(equalTo: surfaceAnchor,
-                                                             constant: position(for: self.directionalLeastState))
+                                                             constant: position(for: self.leastCoordinateState))
            }
        }

@@ -687,8 +683,8 @@ class LayoutAdapter {
            log.debug("update surface location = \(surfaceLocation)")
        }

-        let minConst: CGFloat = position(for: directionalLeastState)
-        let maxConst: CGFloat = position(for: directionalMostState)
+        let minConst: CGFloat = position(for: leastCoordinateState)
+        let maxConst: CGFloat = position(for: mostCoordinateState)

        var const = initialConst + diff

@@ -779,7 +775,7 @@ class LayoutAdapter {

    fileprivate func checkLayout() {
        // Verify layout configurations
-        assert(activeStates.count > 0)
+        assert(anchorStates.count > 0)
        assert(validStates.contains(layout.initialState),
               "Does not include an initial state (\(layout.initialState)) in (\(validStates))")
        /* This assertion does not work in a device rotating
@@ -799,7 +795,7 @@ extension LayoutAdapter {
        /// |-------|-------|===o===|  |-------|===o===|-------|
        /// pos: o/x, segment: =

-        let sortedStates = sortedDirectionalStates
+        let sortedStates = sortedAnchorStatesByCoordinate

        let upperIndex: Int?
        if forward {
@@ -766,6 +766,13 @@ class CoreTests: XCTestCase {
            (#line, tipPos, CGPoint(x: 0.0, y: 1000.0), .hidden),
            ])
    }
+
+    func test_keep_pan_gesture_disabled() {
+        let fpc = FloatingPanelController()
+        fpc.panGestureRecognizer.isEnabled = false
+        fpc.showForTest()
+        XCTAssertFalse(fpc.panGestureRecognizer.isEnabled)
+    }
 }

 private class FloatingPanelLayout3Positions: FloatingPanelTestLayout {
@@ -13,8 +13,8 @@ class LayoutTests: XCTestCase {
    override func tearDown() {}

    func test_layoutAdapter_topAndBottomMostState() {
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeMostState, .full)
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeLeastState, .tip)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.mostExpandedState, .full)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.leastExpandedState, .tip)

        class FloatingPanelLayoutWithHidden: FloatingPanelLayout {
            var anchors: [FloatingPanelState: FloatingPanelLayoutAnchoring]  {
@@ -38,12 +38,12 @@ class LayoutTests: XCTestCase {
            let position: FloatingPanelPosition = .bottom
        }
        fpc.layout = FloatingPanelLayoutWithHidden()
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeMostState, .full)
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeLeastState, .hidden)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.mostExpandedState, .full)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.leastExpandedState, .hidden)

        fpc.layout = FloatingPanelLayout2Positions()
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeMostState, .half)
-        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.edgeLeastState, .tip)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.mostExpandedState, .half)
+        XCTAssertEqual(fpc.floatingPanel.layoutAdapter.leastExpandedState, .tip)
    }

    func test_layoutSegment_3position() {
@@ -18,7 +18,7 @@ extension FloatingPanelController {
 class FloatingPanelTestDelegate: FloatingPanelControllerDelegate {
    var position: FloatingPanelState = .hidden
    var didMoveCallback: ((FloatingPanelController) -> Void)?
-    func floatingPanelDidChangePosition(_ vc: FloatingPanelController) {
+    func floatingPanelDidChangeState(_ vc: FloatingPanelController) {
        position = vc.state
    }
    func floatingPanelDidMove(_ vc: FloatingPanelController) {
Author	SHA1	Message	Date
Shin Yamamoto	29beea0ff9	Version 2.5.0	2021-09-28 08:43:42 +09:00
Shin Yamamoto	1e16d9c1fb	Fix a tab bar's appearance in Samples app on iOS 15	2021-09-28 08:43:42 +09:00
milettal	31d7a2a301	Fix a crash in Samples app on iPad (#497 ) * Fix a crash when the app shows an action sheet on iPad * Use the UITableViewCell as the sourceView	2021-09-25 10:11:38 +09:00
Federico Zanetello	5f1d49b0bd	Add SwiftUI proof of concept in Maps-SwiftUI example (#481 ) Partially solves #281. This adds a new example app which mimics the Maps.app, written in SwiftUI. The code works for iOS 13+, however: * the project has been created with Xcode 13 * the project uses the SwiftUI lifecycle (iOS 14+) The source code in Examples/Maps-SwiftUI/Maps/FloatingPanel is ready to move into the library, but there is an issue on SwiftUI’s environment propagation into FloatingPanel. SwiftUI’s environment is propagated to all subviews. However FloatingPanel is not a subview, but a new view controller in the screen (and not a child view controller). It’s possible to lead behaviors unexpected by SwiftUI users so that this is merged as a sample code until it will be resolved.	2021-09-25 10:06:23 +09:00
Shin Yamamoto	ee66f218ca	Merge pull request #502 from scenee/release/2.4.1 Release 2.4.1	2021-09-18 12:11:12 +09:00
Shin Yamamoto	3a0831a334	Version 2.4.1	2021-09-18 11:20:52 +09:00
Shin Yamamoto	add2f9ba4f	Remove .travis.yml	2021-09-18 11:20:52 +09:00
Shin Yamamoto	ca6a8d5c16	Update ci workflow	2021-09-18 10:57:03 +09:00
Iran-Q	84eba1aefa	fix objc can not obtain dismissalTapGestureRecognizer (#496 ) Co-authored-by: CodingIran <codingiran@163.com>	2021-08-27 00:02:02 +09:00
Shin Yamamoto	289ea4c971	Fix a compile error on SampleObjC	2021-08-18 07:29:39 +09:00
Shin Yamamoto	821b03376c	Make the pan gesture keep disabled (#486 ) Because a panel's pan gesture becomes enabled in showing it even after it is disabled. This issue was reported in #485.	2021-08-10 11:57:19 +09:00
Shin Yamamoto	19fe1cffef	Merge pull request #472 from scenee/release/2.4.0 Release 2.4.0	2021-06-05 15:09:39 +09:00
Shin Yamamoto	b8fcb50874	Version 2.4.0	2021-06-05 14:28:00 +09:00
Shin Yamamoto	9c45c31190	Fix a regression for the backdrop behavior (#466,#471) The backdrop alpha of a panel must be updated only in `Controller.show(animated:completion:)`. Because that prevents a backdrop flicking just before presenting a panel. Resolve #466.	2021-06-05 14:24:19 +09:00
Shin Yamamoto	895790f697	Update README for the backdrop tap-to-dismiss action	2021-05-28 13:00:30 +09:00
Shin Yamamoto	43c7e8c2a0	Refactor LayoutAdapter * Remove `edgeMostY` * Rename the following properties * activeStates -> anchorStates * orderedStates -> sortedAnchorStates * sortedDirectionalStates -> sortedAnchorStatesByCoordinate * directionalLeastState -> leastCoordinateState * directionalMostState -> mostCoordinateState * edgeMostState -> mostExpandedState * edgeLeastState -> leastExpandedState * offsetFromEdgeMost -> offsetFromMostExpandedAnchor	2021-05-10 22:57:04 +09:00
Shin Yamamoto	904a66115c	Add completion handler in addPanel(toParent:) (#402 )	2021-05-10 22:14:01 +09:00
Shin Yamamoto	d0932e8e37	Rename floatingPanelDidChangePosition to floatingPanelDidChangeState	2021-05-10 22:14:01 +09:00
Shin Yamamoto	22009013eb	Merge pull request #461 from scenee/release/2.3.1 Release v2.3.1	2021-05-10 21:37:17 +09:00