Introduces rudimentary Toolbar support for iOS 13

Sources/SwiftUIBackports/Internal/Inspect+UIKit.swift

@@ -84,6 +84,14 @@ extension View {
     func inspect<ViewType: PlatformView>(selector: @escaping (_ inspector: Inspector) -> ViewType?, customize: @escaping (ViewType) -> Void) -> some View {
         inject(InspectionView(selector: selector, customize: customize))
     }
+
+    func controller(_ customize: @escaping (UIViewController?) -> Void) -> some View {
+        inspect { inspector in
+            inspector.sourceController.view
+        } customize: { view in
+            customize(view.parentController)
+        }
+    }
 }
 
 private struct InspectionView<ViewType: PlatformView>: View {

Sources/SwiftUIBackports/Shared/PhotosPicker/Core/MediaResults.swift

@@ -0,0 +1,40 @@
+import Photos
+
+/// Represents a `PHFetchResult` that can be used as a `RandomAccessCollection` in a SwiftUI view such as `List`, `ForEach`, etc...
+internal struct MediaResults<Result>: RandomAccessCollection where Result: PHObject {
+
+    /// Represents the underlying results
+    public private(set) var result: PHFetchResult<Result>
+
+    /// Instantiates a new instance with the specified result
+    public init(_ result: PHFetchResult<Result>) {
+        self.result = result
+    }
+
+    public var startIndex: Int { 0 }
+    public var endIndex: Int { result.count }
+    public subscript(position: Int) -> Result { result.object(at: position) }
+
+}
+
+/// An observer used to observe changes on a `PHFetchResult`
+internal final class ResultsObserver<Result>: NSObject, ObservableObject, PHPhotoLibraryChangeObserver where Result: PHObject {
+
+    @Published
+    internal var result: PHFetchResult<Result>
+
+    deinit {
+        PHPhotoLibrary.shared().unregisterChangeObserver(self)
+    }
+
+    init(result: PHFetchResult<Result>) {
+        self.result = result
+        super.init()
+        PHPhotoLibrary.shared().register(self)
+    }
+
+    func photoLibraryDidChange(_ changeInstance: PHChange) {
+        result = changeInstance.changeDetails(for: result)?.fetchResultAfterChanges ?? result
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Core/PHFetchOptions.swift

@@ -0,0 +1,63 @@
+import Foundation
+import Photos
+
+internal extension PHFetchOptions {
+
+    /// The maximum number of objects to include in the fetch result.
+    func fetchLimit(_ fetchLimit: Int) -> Self {
+        self.fetchLimit = fetchLimit
+        return self
+    }
+
+    /// The set of source types for which to include assets in the fetch result.
+    func includeAssetSourceTypes(_ sourceTypes: PHAssetSourceType) -> Self {
+        self.includeAssetSourceTypes = sourceTypes
+        return self
+    }
+
+    /// Determines whether the fetch result includes all assets from burst photo sequences.
+    func includeHiddenAssets(_ includeHiddenAssets: Bool) -> Self {
+        self.includeHiddenAssets = includeHiddenAssets
+        return self
+    }
+
+    /// Determines whether the fetch result includes all assets from burst photo sequences.
+    func includeAllBurstAssets(_ includeAllBurstAssets: Bool) -> Self {
+        self.includeAllBurstAssets = includeAllBurstAssets
+        return self
+    }
+
+    /// Appends the specified sort to the current list of descriptors.
+    /// - Parameters:
+    ///   - keyPath: The keyPath sort by
+    ///   - ascending: If true, the results will be in ascending order
+    func sort<Root, Value>(by keyPath: KeyPath<Root, Value>, ascending: Bool = true) -> Self {
+        var descriptors = sortDescriptors ?? []
+        descriptors.append(NSSortDescriptor(keyPath: keyPath, ascending: ascending))
+        self.sortDescriptors = descriptors
+        return self
+    }
+
+    /// Appends the specified predicate to the current list of predicates.
+    /// - Parameter predicate: The predicate to append
+    func filter(_ predicate: NSPredicate) -> Self {
+        let predicates = [predicate, self.predicate].compactMap { $0 }
+        self.predicate = NSCompoundPredicate(andPredicateWithSubpredicates: predicates)
+        return self
+    }
+
+    /// Replaces the sort descriptors.
+    /// - Parameter sortDescriptors: The descriptors to sort results
+    func sortDescriptors(_ sortDescriptors: [NSSortDescriptor]) -> Self {
+        self.sortDescriptors = sortDescriptors
+        return self
+    }
+
+    /// Replaces the predicate.
+    /// - Parameter predicate: The predicate to filter results
+    func predicate(_ predicate: NSPredicate) -> Self {
+        self.predicate = predicate
+        return self
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Core/PHObject+Identifiable.swift

@@ -0,0 +1,6 @@
+import SwiftUI
+import Photos
+
+extension PHObject: Identifiable {
+    public var id: String { localIdentifier }
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Fetch/FetchAsset.swift

@@ -0,0 +1,60 @@
+import Photos
+import SwiftUI
+
+/// Fetches a single asset
+@propertyWrapper
+struct FetchAsset: DynamicProperty {
+
+    @ObservedObject
+    internal private(set) var observer: AssetObserver
+
+    /// Represents the fetched asset
+    public var wrappedValue: MediaAsset {
+        MediaAsset(asset: observer.asset)
+    }
+
+}
+
+internal extension FetchAsset {
+
+    /// Instantiates the fetch with an existing `PHAsset`
+    /// - Parameter asset: The asset
+    init(_ asset: PHAsset) {
+        let observer = AssetObserver(asset: asset)
+        self.init(observer: observer)
+    }
+
+}
+
+/// Represents the result of a `FetchAsset` request.
+struct MediaAsset {
+
+    public private(set) var asset: PHAsset?
+
+    public init(asset: PHAsset?) {
+        self.asset = asset
+    }
+
+}
+
+internal final class AssetObserver: NSObject, ObservableObject, PHPhotoLibraryChangeObserver {
+
+    @Published
+    internal var asset: PHAsset?
+
+    deinit {
+        PHPhotoLibrary.shared().unregisterChangeObserver(self)
+    }
+
+    init(asset: PHAsset) {
+        self.asset = asset
+        super.init()
+        PHPhotoLibrary.shared().register(self)
+    }
+
+    func photoLibraryDidChange(_ changeInstance: PHChange) {
+        guard let asset = asset else { return }
+        self.asset = changeInstance.changeDetails(for: asset)?.objectAfterChanges
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Fetch/FetchAssetCollection.swift

@@ -0,0 +1,95 @@
+import Photos
+import SwiftUI
+
+/// Fetches a set of asset collections from the `Photos` framework
+@propertyWrapper
+internal struct FetchAssetCollection<Result>: DynamicProperty where Result: PHAssetCollection {
+
+    @ObservedObject
+    internal private(set) var observer: ResultsObserver<Result>
+
+    /// Represents the results of the fetch
+    public var wrappedValue: MediaResults<Result> {
+        get { MediaResults(observer.result) }
+        set { observer.result = newValue.result }
+    }
+
+}
+
+internal extension FetchAssetCollection {
+
+    /// Instantiates a fetch with an existing `PHFetchResult<Result>` instance
+    init(result: PHFetchResult<Result>) {
+        self.init(observer: ResultsObserver(result: result))
+    }
+
+    /// Instantiates a fetch with a custom `PHFetchOptions` instance
+    init(_ options: PHFetchOptions? = nil) {
+        let result = PHAssetCollection.fetchTopLevelUserCollections(with: options)
+        self.init(observer: ResultsObserver(result: result as! PHFetchResult<Result>))
+    }
+
+    /// Instantiates a fetch with a filter and sort options
+    /// - Parameters:
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    init<Value>(filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHAssetCollection, Value>, ascending: Bool)]) {
+        let options = PHFetchOptions()
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        self.init(options)
+    }
+
+}
+
+internal extension FetchAssetCollection {
+
+    /// Instantiates a fetch for the specified album type and subtype
+    /// - Parameters:
+    ///   - album: The album type to fetch
+    ///   - kind: The album subtype to fetch
+    ///   - options: Any additional options to apply to the fetch
+    init(album: PHAssetCollectionType,
+                kind: PHAssetCollectionSubtype = .any,
+                options: PHFetchOptions? = nil) {
+        let result = PHAssetCollection.fetchAssetCollections(with: album, subtype: kind, options: options)
+        self.init(observer: ResultsObserver(result: result as! PHFetchResult<Result>))
+    }
+
+    /// Instantiates a fetch for the specified album type and subtype
+    /// - Parameters:
+    ///   - album: The album type to fetch
+    ///   - kind: The album subtype to fetch
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    init(album: PHAssetCollectionType,
+                kind: PHAssetCollectionSubtype = .any,
+                fetchLimit: Int = 0,
+                filter: NSPredicate? = nil) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.predicate = filter
+        self.init(album: album, kind: kind, options: options)
+    }
+
+    /// Instantiates a fetch for the specified album type and subtype
+    /// - Parameters:
+    ///   - album: The album type to fetch
+    ///   - kind: The album subtype to fetch
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    init<Value>(album: PHAssetCollectionType,
+                       kind: PHAssetCollectionSubtype = .any,
+                       fetchLimit: Int = 0,
+                       filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHAssetCollection, Value>, ascending: Bool)]) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        self.init(album: album, kind: kind, options: options)
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Fetch/FetchAssetList.swift

@@ -0,0 +1,116 @@
+import Photos
+import SwiftUI
+
+/// Fetches a set of assets from the `Photos` framework
+@propertyWrapper
+internal struct FetchAssetList<Result>: DynamicProperty where Result: PHAsset {
+
+    @ObservedObject
+    internal private(set) var observer: ResultsObserver<Result>
+
+    /// Represents the results of the fetch
+    public var wrappedValue: MediaResults<Result> {
+        get { MediaResults(observer.result) }
+        set { observer.result = newValue.result }
+    }
+
+}
+
+internal extension FetchAssetList {
+
+    /// Instantiates a fetch with an existing `PHFetchResult<Result>` instance
+    init(_ result: PHFetchResult<PHAsset>) {
+        observer = ResultsObserver(result: result as! PHFetchResult<Result>)
+    }
+
+    /// Instantiates a fetch with a custom `PHFetchOptions` instance
+    init(_ options: PHFetchOptions? = nil) {
+        let result = PHAsset.fetchAssets(with: options)
+        observer = ResultsObserver(result: result as! PHFetchResult<Result>)
+    }
+
+    /// Instantiates a fetch by applying the specified sort and filter options
+    /// - Parameters:
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    ///   - sourceTypes: The sourceTypes to include in the results
+    ///   - includeAllBurstAssets: If true, burst assets will be included in the results
+    ///   - includeHiddenAssets: If true, hidden assets will be included in the results
+    init<Value>(filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHAsset, Value>, ascending: Bool)],
+                       sourceTypes: PHAssetSourceType = [.typeCloudShared, .typeUserLibrary, .typeiTunesSynced],
+                       includeAllBurstAssets: Bool = false,
+                       includeHiddenAssets: Bool = false) {
+        let options = PHFetchOptions()
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        options.includeAssetSourceTypes = sourceTypes
+        options.includeHiddenAssets = includeHiddenAssets
+        options.includeAllBurstAssets = includeAllBurstAssets
+        self.init(options)
+    }
+
+}
+
+internal extension FetchAssetList {
+
+    /// Fetches all assets in the specified collection
+    /// - Parameters:
+    ///   - collection: The asset collection to filter by
+    ///   - options: Any additional options to apply to the request
+    init(in collection: PHAssetCollection,
+                options: PHFetchOptions? = nil) {
+        let result = PHAsset.fetchAssets(in: collection, options: options)
+        self.init(observer: ResultsObserver(result: result as! PHFetchResult<Result>))
+    }
+
+    /// Fetches all assets in the specified collection
+    /// - Parameters:
+    ///   - collection: The asset collection to filter by
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sourceTypes: The sourceTypes to include in the results
+    ///   - includeAllBurstAssets: If true, burst assets will be included in the results
+    ///   - includeHiddenAssets: If true, hidden assets will be included in the results
+    init(in collection: PHAssetCollection,
+                fetchLimit: Int = 0,
+                filter: NSPredicate? = nil,
+                sourceTypes: PHAssetSourceType = [.typeCloudShared, .typeUserLibrary, .typeiTunesSynced],
+                includeAllBurstAssets: Bool = false,
+                includeHiddenAssets: Bool = false) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.predicate = filter
+        options.includeAssetSourceTypes = sourceTypes
+        options.includeHiddenAssets = includeHiddenAssets
+        options.includeAllBurstAssets = includeAllBurstAssets
+        self.init(in: collection, options: options)
+    }
+
+    /// Fetches all assets in the specified collection
+    /// - Parameters:
+    ///   - collection: The asset collection to filter by
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    ///   - sourceTypes: The sourceTypes to include in the results
+    ///   - includeAllBurstAssets: If true, burst assets will be included in the results
+    ///   - includeHiddenAssets: If true, hidden assets will be included in the results
+    init<Value>(in collection: PHAssetCollection,
+                       fetchLimit: Int = 0,
+                       filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHAsset, Value>, ascending: Bool)],
+                       sourceTypes: PHAssetSourceType = [.typeCloudShared, .typeUserLibrary, .typeiTunesSynced],
+                       includeAllBurstAssets: Bool = false,
+                       includeHiddenAssets: Bool = false) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        options.includeAssetSourceTypes = sourceTypes
+        options.includeHiddenAssets = includeHiddenAssets
+        options.includeAllBurstAssets = includeAllBurstAssets
+        self.init(in: collection, options: options)
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Fetch/FetchCollectionList.swift

@@ -0,0 +1,105 @@
+import Photos
+import SwiftUI
+
+@propertyWrapper
+internal struct FetchCollectionList<Result>: DynamicProperty where Result: PHCollectionList {
+
+    @ObservedObject
+    internal private(set) var observer: ResultsObserver<Result>
+
+    public var wrappedValue: MediaResults<Result> {
+        get { MediaResults(observer.result) }
+        set { observer.result = newValue.result }
+    }
+
+}
+
+internal extension FetchCollectionList {
+
+    /// Instantiates a fetch with an existing `PHFetchResult<Result>` instance
+    init(_ result: PHFetchResult<PHAsset>) {
+        observer = ResultsObserver(result: result as! PHFetchResult<Result>)
+    }
+
+    /// Instantiates a fetch with a custom `PHFetchOptions` instance
+    init(_ options: PHFetchOptions?) {
+        let result = PHCollectionList.fetchTopLevelUserCollections(with: options)
+        self.init(observer: ResultsObserver(result: result as! PHFetchResult<Result>))
+    }
+
+    /// Instantiates a fetch by applying the specified sort and filter options
+    /// - Parameters:
+    ///   - filter: The predicate to apply when filtering the results
+    init(filter: NSPredicate? = nil) {
+        let options = PHFetchOptions()
+        options.predicate = filter
+        self.init(options)
+    }
+
+    /// Instantiates a fetch by applying the specified sort and filter options
+    /// - Parameters:
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    init<Value>(fetchLimit: Int = 0,
+                       filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHCollectionList, Value>, ascending: Bool)]) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        self.init(options)
+    }
+
+}
+
+internal extension FetchCollectionList {
+
+    /// Fetches all lists of the specified type and subtyle
+    /// - Parameters:
+    ///   - list: The list type to filter by
+    ///   - kind: The list subtype to filter by
+    ///   - options: Any additional options to apply to the request
+    init(list: PHCollectionListType,
+                kind: PHCollectionListSubtype = .any,
+                options: PHFetchOptions? = nil) {
+        let result = PHCollectionList.fetchCollectionLists(with: list, subtype: kind, options: options)
+        self.init(observer: ResultsObserver(result: result as! PHFetchResult<Result>))
+    }
+
+    /// Fetches all lists of the specified type and subtyle
+    /// - Parameters:
+    ///   - list: The list type to filter by
+    ///   - kind: The list subtype to filter by
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    init(list: PHCollectionListType,
+                kind: PHCollectionListSubtype = .any,
+                fetchLimit: Int = 0,
+                filter: NSPredicate) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.predicate = filter
+        self.init(list: list, kind: kind, options: options)
+    }
+
+    /// Fetches all lists of the specified type and subtyle
+    /// - Parameters:
+    ///   - list: The list type to filter by
+    ///   - kind: The list subtype to filter by
+    ///   - fetchLimit: The fetch limit to apply to the fetch, this may improve performance but limits results
+    ///   - filter: The predicate to apply when filtering the results
+    ///   - sort: The keyPaths to apply when sorting the results
+    init<Value>(list: PHCollectionListType,
+                       kind: PHCollectionListSubtype = .any,
+                       fetchLimit: Int = 0,
+                       filter: NSPredicate? = nil,
+                       sort: [(KeyPath<PHCollectionList, Value>, ascending: Bool)]) {
+        let options = PHFetchOptions()
+        options.fetchLimit = fetchLimit
+        options.sortDescriptors = sort.map { NSSortDescriptor(keyPath: $0.0, ascending: $0.ascending) }
+        options.predicate = filter
+        self.init(list: list, kind: kind, options: options)
+    }
+
+}

Sources/SwiftUIBackports/Shared/PhotosPicker/Hosts.swift

@@ -1,231 +0,0 @@
-#if os(iOS)
-import SwiftUI
-import PhotosUI
-
-internal extension View {
-    @ViewBuilder
-    func _photoPicker(
-        isPresented: Binding<Bool>,
-        selection: Binding<[Backport<Any>.PhotosPickerItem]>,
-        filter: Backport<Any>.PHPickerFilter?,
-        maxSelectionCount: Int?,
-        selectionBehavior: Backport<Any>.PhotosPickerSelectionBehavior,
-        preferredItemEncoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy,
-        library: PHPhotoLibrary
-    ) -> some View {
-        if #available(iOS 14, *) {
-            sheet(isPresented: isPresented) {
-
-            }
-//            var config = PHPickerConfiguration(photoLibrary: library)
-//            config.preferredAssetRepresentationMode = preferredItemEncoding.mode
-//            config.selectionLimit = maxSelectionCount ?? 0
-//            //        config.filter = filter.filter
-//
-//            if #available(iOS 15, *) {
-//                config.selection = selectionBehavior.behaviour
-//            }
-//
-//            PickerViewController(
-//                isPresented: isPresented,
-//                selection: selection,
-//                configuration: config
-//            )
-        } else {
-            backport.background {
-                LegacyPhotosViewController(isPresented: isPresented, selection: selection, filter: filter)
-            }
-        }
-    }
-}
-
-@available(iOS 14, *)
-private struct PhotosViewController: UIViewControllerRepresentable {
-    @Binding var isPresented: Bool
-    @Binding var selection: [Backport<Any>.PhotosPickerItem]
-
-    let configuration: PHPickerConfiguration
-
-    func makeUIViewController(context: Context) -> Representable {
-        Representable(
-            isPresented: $isPresented,
-            selection: $selection,
-            configuration: configuration
-        )
-    }
-
-
-    func updateUIViewController(_ controller: Representable, context: Context) {
-        controller.selection = $selection
-        controller.configuration = configuration
-    }
-}
-
-@available(iOS 14, *)
-private extension PhotosViewController {
-    final class Representable: UIViewController, PHPickerViewControllerDelegate, UIAdaptivePresentationControllerDelegate {
-        private weak var controller: PHPickerViewController?
-
-        var isPresented: Binding<Bool> {
-            didSet {
-                updateControllerLifecycle(
-                    from: oldValue.wrappedValue,
-                    to: isPresented.wrappedValue
-                )
-            }
-        }
-
-        var selection: Binding<[Backport<Any>.PhotosPickerItem]>
-        var configuration: PHPickerConfiguration
-
-        init(isPresented: Binding<Bool>, selection: Binding<[Backport<Any>.PhotosPickerItem]>, configuration: PHPickerConfiguration) {
-            self.isPresented = isPresented
-            self.selection = selection
-            self.configuration = configuration
-
-            super.init(nibName: nil, bundle: nil)
-        }
-
-        required init?(coder: NSCoder) {
-            fatalError("init(coder:) has not been implemented")
-        }
-
-        private func updateControllerLifecycle(from oldValue: Bool, to newValue: Bool) {
-            switch (oldValue, newValue) {
-            case (false, true):
-                presentController()
-            case (true, false):
-                dismissController()
-            case (true, true), (false, false):
-                break
-            }
-        }
-
-        private func presentController() {
-            let controller = PHPickerViewController(configuration: configuration)
-            controller.presentationController?.delegate = self
-            controller.delegate = self
-            present(controller, animated: true)
-            self.controller = controller
-        }
-
-        private func dismissController() {
-            isPresented.wrappedValue = false
-            guard let controller else { return }
-            controller.presentedViewController?.dismiss(animated: true)
-        }
-
-        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
-            print(results)
-            dismissController()
-        }
-
-        func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
-            dismissController()
-        }
-    }
-}
-
-@available(iOS 13, *)
-private struct LegacyPhotosViewController: UIViewControllerRepresentable {
-    @Binding var isPresented: Bool
-    @Binding var selection: [Backport<Any>.PhotosPickerItem]
-
-    let filter: Backport<Any>.PHPickerFilter?
-
-    func makeUIViewController(context: Context) -> Representable {
-        Representable(
-            isPresented: $isPresented,
-            selection: $selection,
-            filter: filter
-        )
-    }
-
-
-    func updateUIViewController(_ controller: Representable, context: Context) {
-        controller.selection = $selection
-        controller.filter = filter
-    }
-}
-
-@available(iOS 13, *)
-private extension LegacyPhotosViewController {
-    final class Representable: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UIAdaptivePresentationControllerDelegate {
-        private weak var controller: UIImagePickerController?
-
-        var isPresented: Binding<Bool> {
-            didSet {
-                updateControllerLifecycle(
-                    from: oldValue.wrappedValue,
-                    to: isPresented.wrappedValue
-                )
-            }
-        }
-
-        var selection: Binding<[Backport<Any>.PhotosPickerItem]>
-        var filter: Backport<Any>.PHPickerFilter?
-
-        init(isPresented: Binding<Bool>, selection: Binding<[Backport<Any>.PhotosPickerItem]>, filter: Backport<Any>.PHPickerFilter?) {
-            self.isPresented = isPresented
-            self.selection = selection
-            self.filter = filter
-
-            super.init(nibName: nil, bundle: nil)
-        }
-
-        required init?(coder: NSCoder) {
-            fatalError("init(coder:) has not been implemented")
-        }
-
-        private func updateControllerLifecycle(from oldValue: Bool, to newValue: Bool) {
-            switch (oldValue, newValue) {
-            case (false, true):
-                presentController()
-            case (true, false):
-                dismissController()
-            case (true, true), (false, false):
-                break
-            }
-        }
-
-        private func presentController() {
-            let controller = UIImagePickerController()
-
-            if let filter {
-                controller.mediaTypes = filter.mediaTypes
-            } else if let types = UIImagePickerController.availableMediaTypes(for: .photoLibrary) {
-                controller.mediaTypes = types
-            }
-
-            controller.allowsEditing = false
-            controller.sourceType = .photoLibrary
-            controller.videoQuality = .typeHigh
-            controller.presentationController?.delegate = self
-            controller.delegate = self
-
-            present(controller, animated: true)
-            self.controller = controller
-        }
-
-        private func dismissController() {
-            isPresented.wrappedValue = false
-            guard let controller else { return }
-            controller.presentedViewController?.dismiss(animated: true)
-        }
-
-        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
-            print("TBD")
-            print(info)
-            dismissController()
-        }
-
-        func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
-            dismissController()
-        }
-
-        func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
-            dismissController()
-        }
-    }
-}
-#endif

Sources/SwiftUIBackports/Shared/PhotosPicker/PhotosPicker+View.swift

@@ -1,96 +1,80 @@
-//#if os(iOS)
-//import SwiftUI
-//import PhotosUI
-//
-//@available(iOS, deprecated: 16.0)
-//extension Backport where Wrapped: View {
-//    /// Presents a Photos picker that selects a `PhotosPickerItem`.
-//    ///
-//    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
-//    ///
-//    /// - Parameters:
-//    ///     - isPresented: The binding to whether the Photos picker should be shown.
-//    ///     - selection: The item being shown and selected in the Photos picker.
-//    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
-//    ///     - preferredItemEncoding: The encoding disambiguation policy of the selected item. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
-//    public func photosPicker(
-//        isPresented: Binding<Bool>,
-//        selection: Binding<PhotosPickerItem?>,
-//        matching filter: PHPickerFilter? = nil,
-//        preferredItemEncoding: PhotosPickerItem.EncodingDisambiguationPolicy = .automatic
-//    ) -> some View {
-//        
-//    }
-//
-//
-//    /// Presents a Photos picker that selects a collection of `PhotosPickerItem`.
-//    ///
-//    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
-//    ///
-//    /// - Parameters:
-//    ///     - isPresented: The binding to whether the Photos picker should be shown.
-//    ///     - selection: All items being shown and selected in the Photos picker.
-//    ///     - maxSelectionCount: The maximum number of items that can be selected. Default is `nil`. Setting it to `nil` means maximum supported by the system.
-//    ///     - selectionBehavior: The selection behavior of the Photos picker. Default is `.default`.
-//    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
-//    ///     - preferredItemEncoding: The encoding disambiguation policy of selected items. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
-//    public func photosPicker(
-//        isPresented: Binding<Bool>,
-//        selection: Binding<[PhotosPickerItem]>,
-//        maxSelectionCount: Int? = nil,
-//        selectionBehavior: PhotosPickerSelectionBehavior = .default,
-//        matching filter: PHPickerFilter? = nil,
-//        preferredItemEncoding: PhotosPickerItem.EncodingDisambiguationPolicy = .automatic
-//    ) -> some View {
-//
-//    }
-//
-//
-//    /// Presents a Photos picker that selects a `PhotosPickerItem` from a given photo library.
-//    ///
-//    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
-//    ///
-//    /// - Parameters:
-//    ///     - isPresented: The binding to whether the Photos picker should be shown.
-//    ///     - selection: The item being shown and selected in the Photos picker.
-//    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
-//    ///     - preferredItemEncoding: The encoding disambiguation policy of the selected item. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
-//    ///     - photoLibrary: The photo library to choose from.
-//    public func photosPicker(
-//        isPresented: Binding<Bool>,
-//        selection: Binding<PhotosPickerItem?>,
-//        matching filter: PHPickerFilter? = nil,
-//        preferredItemEncoding: PhotosPickerItem.EncodingDisambiguationPolicy = .automatic,
-//        photoLibrary: PHPhotoLibrary
-//    ) -> some View {
-//
-//    }
-//
-//
-//    /// Presents a Photos picker that selects a collection of `PhotosPickerItem` from a given photo library.
-//    ///
-//    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
-//    ///
-//    /// - Parameters:
-//    ///     - isPresented: The binding to whether the Photos picker should be shown.
-//    ///     - selection: All items being shown and selected in the Photos picker.
-//    ///     - maxSelectionCount: The maximum number of items that can be selected. Default is `nil`. Setting it to `nil` means maximum supported by the system.
-//    ///     - selectionBehavior: The selection behavior of the Photos picker. Default is `.default`.
-//    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
-//    ///     - preferredItemEncoding: The encoding disambiguation policy of selected items. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
-//    ///     - photoLibrary: The photo library to choose from.
-//    public func photosPicker(
-//        isPresented: Binding<Bool>,
-//        selection: Binding<[PhotosPickerItem]>,
-//        maxSelectionCount: Int? = nil,
-//        selectionBehavior: PhotosPickerSelectionBehavior = .default,
-//        matching filter: PHPickerFilter? = nil,
-//        preferredItemEncoding: PhotosPickerItem.EncodingDisambiguationPolicy = .automatic,
-//        photoLibrary: PHPhotoLibrary
-//    ) -> some View {
-//
-//    }
-//
-//}
-//
-//#endif
+#if os(iOS)
+import SwiftUI
+import PhotosUI
+
+@available(iOS, deprecated: 16.0)
+public extension Backport where Wrapped: View {
+    /// Presents a Photos picker that selects a `PhotosPickerItem` from a given photo library.
+    ///
+    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
+    ///
+    /// - Parameters:
+    ///     - isPresented: The binding to whether the Photos picker should be shown.
+    ///     - selection: The item being shown and selected in the Photos picker.
+    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
+    ///     - preferredItemEncoding: The encoding disambiguation policy of the selected item. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
+    ///     - photoLibrary: The photo library to choose from.
+    func photosPicker(
+        isPresented: Binding<Bool>,
+        selection: Binding<Backport<Any>.PhotosPickerItem?>,
+        matching filter: Backport<Any>.PHPickerFilter? = nil,
+        preferredItemEncoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy = .automatic,
+        photoLibrary: PHPhotoLibrary = .shared()
+    ) -> some View {
+        let binding = Binding(
+            get: {
+                [selection.wrappedValue].compactMap { $0 }
+            },
+            set: { newValue in
+                selection.wrappedValue = newValue.first
+            }
+        )
+
+        return content.sheet(isPresented: isPresented) {
+            PhotosPickerView(
+                selection: binding,
+                filter: filter,
+                maxSelection: 1,
+                selectionBehavior: .default,
+                encoding: preferredItemEncoding,
+                library: photoLibrary
+            )
+        }
+    }
+
+
+    /// Presents a Photos picker that selects a collection of `PhotosPickerItem` from a given photo library.
+    ///
+    /// The user explicitly grants access only to items they choose, so photo library access authorization is not needed.
+    ///
+    /// - Parameters:
+    ///     - isPresented: The binding to whether the Photos picker should be shown.
+    ///     - selection: All items being shown and selected in the Photos picker.
+    ///     - maxSelectionCount: The maximum number of items that can be selected. Default is `nil`. Setting it to `nil` means maximum supported by the system.
+    ///     - selectionBehavior: The selection behavior of the Photos picker. Default is `.default`.
+    ///     - filter: Types of items that can be shown. Default is `nil`. Setting it to `nil` means all supported types can be shown.
+    ///     - preferredItemEncoding: The encoding disambiguation policy of selected items. Default is `.automatic`. Setting it to `.automatic` means the best encoding determined by the system will be used.
+    ///     - photoLibrary: The photo library to choose from.
+    func photosPicker(
+        isPresented: Binding<Bool>,
+        selection: Binding<[Backport<Any>.PhotosPickerItem]>,
+        maxSelectionCount: Int? = nil,
+        selectionBehavior: Backport<Any>.PhotosPickerSelectionBehavior = .default,
+        matching filter: Backport<Any>.PHPickerFilter? = nil,
+        preferredItemEncoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy = .automatic,
+        photoLibrary: PHPhotoLibrary = .shared()
+    ) -> some View {
+        content.sheet(isPresented: isPresented) {
+            PhotosPickerView(
+                selection: selection,
+                filter: filter,
+                maxSelection: maxSelectionCount,
+                selectionBehavior: selectionBehavior,
+                encoding: preferredItemEncoding,
+                library: photoLibrary
+            )
+        }
+    }
+}
+
+#endif

Sources/SwiftUIBackports/Shared/PhotosPicker/PhotosPicker.swift

@@ -25,89 +25,19 @@ public extension Backport<Any> {
             } label: {
                 label
             }
-            ._photoPicker(
+            .backport.photosPicker(
                 isPresented: $isPresented,
                 selection: $selection,
-                filter: filter,
                 maxSelectionCount: maxSelection,
                 selectionBehavior: selectionBehavior,
+                matching: filter,
                 preferredItemEncoding: encoding,
-                library: library
+                photoLibrary: library
             )
         }
     }
 }
 
-@available(iOS, introduced: 13, deprecated: 14)
-public extension Backport<Any>.PhotosPicker {
-    init(
-        selection: Binding<Backport.PhotosPickerItem?>,
-        matching filter: Backport.PHPickerFilter? = nil,
-        @ViewBuilder label: () -> Label
-    ) {
-        _selection = .init(
-            get: {
-                [selection.wrappedValue].compactMap { $0 }
-            },
-            set: { newValue in
-                selection.wrappedValue = newValue.first
-            }
-        )
-        self.filter = filter
-        self.maxSelection = 1
-        self.selectionBehavior = .default
-        self.encoding = .automatic
-        self.library = .shared()
-        self.label = label()
-    }
-}
-
-@available(iOS, introduced: 13, deprecated: 14)
-public extension Backport<Any>.PhotosPicker<Text> {
-    init(
-        _ titleKey: LocalizedStringKey,
-        selection: Binding<Backport.PhotosPickerItem?>,
-        matching filter: Backport.PHPickerFilter? = nil
-    ) {
-        _selection = .init(
-            get: {
-                [selection.wrappedValue].compactMap { $0 }
-            },
-            set: { newValue in
-                selection.wrappedValue = newValue.first
-            }
-        )
-        self.filter = filter
-        self.maxSelection = 1
-        self.selectionBehavior = .default
-        self.encoding = .automatic
-        self.library = .shared()
-        self.label = Text(titleKey)
-    }
-
-    init<S>(
-        _ title: S,
-        selection: Binding<Backport.PhotosPickerItem?>,
-        matching filter: Backport.PHPickerFilter? = nil
-    ) where S: StringProtocol {
-        _selection = .init(
-            get: {
-                [selection.wrappedValue].compactMap { $0 }
-            },
-            set: { newValue in
-                selection.wrappedValue = newValue.first
-            }
-        )
-        self.filter = filter
-        self.maxSelection = 1
-        self.selectionBehavior = .default
-        self.encoding = .automatic
-        self.library = .shared()
-        self.label = Text(title)
-    }
-}
-
-@available(iOS 14, *)
 public extension Backport<Any>.PhotosPicker {
     /// Creates a Photos picker that selects a `PhotosPickerItem`.
     ///
@@ -176,7 +106,6 @@ public extension Backport<Any>.PhotosPicker {
 
 // MARK: Single selection
 
-@available(iOS 14, *)
 public extension Backport<Any>.PhotosPicker<Text> {
     /// Creates a Photos picker with its label generated from a localized string key that selects a `PhotosPickerItem`.
     ///
@@ -309,7 +238,6 @@ public extension Backport<Any>.PhotosPicker<Text> {
 
 // MARK: Multiple selection
 
-@available(iOS 15, *)
 public extension Backport<Any>.PhotosPicker {
     /// Creates a Photos picker that selects a collection of `PhotosPickerItem`.
     ///
@@ -370,7 +298,6 @@ public extension Backport<Any>.PhotosPicker {
     }
 }
 
-@available(iOS 15, *)
 public extension Backport<Any>.PhotosPicker<Text> {
     /// Creates a Photos picker with its label generated from a localized string key that selects a collection of `PhotosPickerItem`.
     ///

Sources/SwiftUIBackports/Shared/PhotosPicker/PhotosPickerItem.swift

@@ -36,14 +36,6 @@ public extension Backport where Wrapped == Any {
         /// All supported content types of the item, in order of most preferred to least preferred.
         public let supportedContentTypes: [String]
 
-//        internal let provider: NSItemProvider?
-//
-//        internal init(itemIdentifier: String, provider: NSItemProvider) {
-//            self.itemIdentifier = itemIdentifier
-//            self.provider = provider
-//            supportedContentTypes = provider.registeredTypeIdentifiers
-//        }
-
         /// Creates an item without any representation using an identifier.
         ///
         /// - Parameters:

Sources/SwiftUIBackports/Shared/PhotosPicker/PickerFilter.swift

@@ -8,17 +8,9 @@ public extension Backport where Wrapped == Any {
     /// A filter that restricts which types of assets to show
     struct PHPickerFilter: Equatable, Hashable {
         internal let predicate: NSPredicate
-        // this enables us to support iOS 13 for images vs videos
-        internal let mediaTypes: [String]
-
-        internal init(mediaTypes: [String]) {
-            self.predicate = .init(value: true)
-            self.mediaTypes = mediaTypes
-        }
 
         internal init(predicate: NSPredicate) {
             self.predicate = predicate
-            self.mediaTypes = []
         }
     }
 }
@@ -27,34 +19,19 @@ public extension Backport where Wrapped == Any {
 public extension Backport<Any>.PHPickerFilter {
     /// The filter for images.
     static var images: Self {
-        if #available(iOS 14, *) {
-            return .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaType.image]))
-        } else {
-            return .init(mediaTypes: [String(kUTTypeImage)])
-        }
+        .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaType.image]))
     }
 
     /// The filter for videos.
     static var videos: Self {
-        if #available(iOS 14, *) {
-            return .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaType.video]))
-        } else {
-            return .init(mediaTypes: [String(kUTTypeMovie)])
-        }
+        .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaType.video]))
     }
 
     /// The filter for live photos.
     static var livePhotos: Self {
-        if #available(iOS 14, *) {
-            return .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaSubtype.photoLive]))
-        } else {
-            return .init(mediaTypes: [String(kUTTypeMovie), String(kUTTypeLivePhoto)])
-        }
+        .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaSubtype.photoLive]))
     }
-}
 
-@available(iOS 14, *)
-public extension Backport<Any>.PHPickerFilter {
     /// The filter for Depth Effect photos.
     static var depthEffectPhotos: Self {
         .init(predicate: NSPredicate(format: "(mediaSubtypes & %d) != 0", argumentArray: [PHAssetMediaSubtype.photoDepthEffect]))
@@ -81,7 +58,6 @@ public extension Backport<Any>.PHPickerFilter {
     }
 
     /// Returns a new filter based on the asset playback style.
-#warning("NEEDS TESTING!")
     static func playbackStyle(_ playbackStyle: PHAsset.PlaybackStyle) -> Self {
         .init(predicate: NSPredicate(format: "(playbackStyle & %d) != 0", argumentArray: [playbackStyle.rawValue]))
     }

Sources/SwiftUIBackports/Shared/PhotosPicker/PickerObserver.swift

@@ -1,48 +0,0 @@
-#if os(iOS)
-import SwiftUI
-import PhotosUI
-
-/// An observer used to observe changes on a `PHFetchResult`
-internal final class PickerObserver<Result>: NSObject, ObservableObject, PHPhotoLibraryChangeObserver {
-    @Published
-    internal var result: PHFetchResult<PHAsset>
-
-    deinit {
-        PHPhotoLibrary.shared().unregisterChangeObserver(self)
-    }
-
-    init(maxSelectionCount: Int?, filter: Backport<Any>.PHPickerFilter) {
-        let options = PHFetchOptions()
-        options.includeAssetSourceTypes = [.typeCloudShared, .typeUserLibrary, .typeiTunesSynced]
-        result = PHAsset.fetchAssets(with: options)
-        super.init()
-        PHPhotoLibrary.shared().register(self)
-    }
-
-    func photoLibraryDidChange(_ changeInstance: PHChange) {
-        result = changeInstance.changeDetails(for: result)?.fetchResultAfterChanges ?? result
-    }
-}
-
-/// Represents a `PHFetchResult` that can be used as a `RandomAccessCollection` in a SwiftUI view such as `List`, `ForEach`, etc...
-internal struct MediaResults: RandomAccessCollection {
-    /// Represents the underlying results
-    private let result: PHFetchResult<PHAsset>
-    private let playbackStyle: PHAsset.PlaybackStyle
-
-    public var element: [Backport<Any>.PhotosPickerItem] {
-        filter { $0.playbackStyle == playbackStyle }
-            .map { Backport<Any>.PhotosPickerItem(itemIdentifier: $0.localIdentifier) }
-    }
-
-    /// Instantiates a new instance with the specified result
-    public init(_ result: PHFetchResult<PHAsset>, playbackStyle: PHAsset.PlaybackStyle) {
-        self.result = result
-        self.playbackStyle = playbackStyle
-    }
-
-    public var startIndex: Int { 0 }
-    public var endIndex: Int { result.count }
-    public subscript(position: Int) -> PHAsset { result.object(at: position) }
-}
-#endif

Sources/SwiftUIBackports/Shared/PhotosPicker/UI/Hosts.swift

@@ -0,0 +1,239 @@
+//#if os(iOS)
+//import SwiftUI
+//import PhotosUI
+//
+//internal extension View {
+//    @ViewBuilder
+//    func _photoPicker(
+//        isPresented: Binding<Bool>,
+//        selection: Binding<[Backport<Any>.PhotosPickerItem]>,
+//        filter: Backport<Any>.PHPickerFilter?,
+//        maxSelectionCount: Int?,
+//        selectionBehavior: Backport<Any>.PhotosPickerSelectionBehavior,
+//        preferredItemEncoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy,
+//        library: PHPhotoLibrary
+//    ) -> some View {
+//        if #available(iOS 14, *) {
+//            backport.background {
+//                PhotosViewController(
+//                    isPresented: isPresented,
+//                    selection: selection,
+//                    filter: filter,
+//                    maxSelectionCount: maxSelectionCount,
+//                    selectionBehavior: selectionBehavior,
+//                    preferredItemEncoding: preferredItemEncoding,
+//                    library: library
+//                )
+//            }
+//        } else {
+//            backport.background {
+//                LegacyPhotosViewController(isPresented: isPresented, selection: selection, filter: filter)
+//            }
+//        }
+//    }
+//}
+//
+//@available(iOS 14, *)
+//private struct PhotosViewController: UIViewControllerRepresentable {
+//    @Binding var isPresented: Bool
+//    @Binding var selection: [Backport<Any>.PhotosPickerItem]
+//
+//    let options: PHFetchOptions
+//
+//    init(isPresented: Binding<Bool>, selection: Binding<[Backport<Any>.PhotosPickerItem]>, filter: Backport<Any>.PHPickerFilter?, maxSelectionCount: Int?, selectionBehavior: Backport<Any>.PhotosPickerSelectionBehavior, preferredItemEncoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy, library: PHPhotoLibrary) {
+//        _isPresented = isPresented
+//        _selection = selection
+//
+//        options = PHFetchOptions()
+//        options.predicate = filter?.predicate
+//
+//        if #available(iOS 15, *) {
+//            configuration.selection = selectionBehavior.behaviour
+//        }
+//
+//        self.configuration = configuration
+//    }
+//
+//    func makeUIViewController(context: Context) -> Representable {
+//        Representable(
+//            isPresented: $isPresented,
+//            selection: $selection,
+//            configuration: configuration
+//        )
+//    }
+//
+//
+//    func updateUIViewController(_ controller: Representable, context: Context) {
+//        controller.selection = $selection
+//        controller.configuration = configuration
+//    }
+//}
+//
+//@available(iOS 14, *)
+//private extension PhotosViewController {
+//    final class Representable: UIViewController, PHPickerViewControllerDelegate, UIAdaptivePresentationControllerDelegate {
+//        private weak var controller: PHPickerViewController?
+//
+//        var isPresented: Binding<Bool> {
+//            didSet {
+//                updateControllerLifecycle(
+//                    from: oldValue.wrappedValue,
+//                    to: isPresented.wrappedValue
+//                )
+//            }
+//        }
+//
+//        var selection: Binding<[Backport<Any>.PhotosPickerItem]>
+//        var configuration: PHPickerConfiguration
+//
+//        init(isPresented: Binding<Bool>, selection: Binding<[Backport<Any>.PhotosPickerItem]>, configuration: PHPickerConfiguration) {
+//            self.isPresented = isPresented
+//            self.selection = selection
+//            self.configuration = configuration
+//
+//            super.init(nibName: nil, bundle: nil)
+//        }
+//
+//        required init?(coder: NSCoder) {
+//            fatalError("init(coder:) has not been implemented")
+//        }
+//
+//        private func updateControllerLifecycle(from oldValue: Bool, to newValue: Bool) {
+//            switch (oldValue, newValue) {
+//            case (false, true):
+//                presentController()
+//            case (true, false):
+//                dismissController()
+//            case (true, true), (false, false):
+//                break
+//            }
+//        }
+//
+//        private func presentController() {
+//            let controller = PHPickerViewController(configuration: configuration)
+//            controller.presentationController?.delegate = self
+//            controller.delegate = self
+//            present(controller, animated: true)
+//            self.controller = controller
+//        }
+//
+//        private func dismissController() {
+//            isPresented.wrappedValue = false
+//            guard let controller else { return }
+//            controller.presentedViewController?.dismiss(animated: true)
+//        }
+//
+//        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
+//            print(results)
+//            dismissController()
+//        }
+//
+//        func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
+//            dismissController()
+//        }
+//    }
+//}
+//
+//@available(iOS 13, *)
+//private struct LegacyPhotosViewController: UIViewControllerRepresentable {
+//    @Binding var isPresented: Bool
+//    @Binding var selection: [Backport<Any>.PhotosPickerItem]
+//
+//    let filter: Backport<Any>.PHPickerFilter?
+//
+//    func makeUIViewController(context: Context) -> Representable {
+//        Representable(
+//            isPresented: $isPresented,
+//            selection: $selection,
+//            filter: filter
+//        )
+//    }
+//
+//
+//    func updateUIViewController(_ controller: Representable, context: Context) {
+//        controller.selection = $selection
+//        controller.filter = filter
+//    }
+//}
+//
+//@available(iOS 13, *)
+//private extension LegacyPhotosViewController {
+//    final class Representable: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UIAdaptivePresentationControllerDelegate {
+//        private weak var controller: UIImagePickerController?
+//
+//        var isPresented: Binding<Bool> {
+//            didSet {
+//                updateControllerLifecycle(
+//                    from: oldValue.wrappedValue,
+//                    to: isPresented.wrappedValue
+//                )
+//            }
+//        }
+//
+//        var selection: Binding<[Backport<Any>.PhotosPickerItem]>
+//        var filter: Backport<Any>.PHPickerFilter?
+//
+//        init(isPresented: Binding<Bool>, selection: Binding<[Backport<Any>.PhotosPickerItem]>, filter: Backport<Any>.PHPickerFilter?) {
+//            self.isPresented = isPresented
+//            self.selection = selection
+//            self.filter = filter
+//
+//            super.init(nibName: nil, bundle: nil)
+//        }
+//
+//        required init?(coder: NSCoder) {
+//            fatalError("init(coder:) has not been implemented")
+//        }
+//
+//        private func updateControllerLifecycle(from oldValue: Bool, to newValue: Bool) {
+//            switch (oldValue, newValue) {
+//            case (false, true):
+//                presentController()
+//            case (true, false):
+//                dismissController()
+//            case (true, true), (false, false):
+//                break
+//            }
+//        }
+//
+//        private func presentController() {
+//            let controller = UIImagePickerController()
+//
+//            if let filter {
+//                controller.mediaTypes = filter.mediaTypes
+//            } else if let types = UIImagePickerController.availableMediaTypes(for: .photoLibrary) {
+//                controller.mediaTypes = types
+//            }
+//
+//            controller.allowsEditing = false
+//            controller.sourceType = .photoLibrary
+//            controller.videoQuality = .typeHigh
+//            controller.presentationController?.delegate = self
+//            controller.delegate = self
+//
+//            present(controller, animated: true)
+//            self.controller = controller
+//        }
+//
+//        private func dismissController() {
+//            isPresented.wrappedValue = false
+//            guard let controller else { return }
+//            controller.presentedViewController?.dismiss(animated: true)
+//        }
+//
+//        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
+//            print("TBD")
+//            print(info)
+//            dismissController()
+//        }
+//
+//        func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
+//            dismissController()
+//        }
+//
+//        func presentationControllerDidDismiss(_ presentationController: UIPresentationController) {
+//            dismissController()
+//        }
+//    }
+//}
+//#endif

Sources/SwiftUIBackports/Shared/PhotosPicker/UI/PhotosPickerView.swift

@@ -0,0 +1,93 @@
+#if os(iOS)
+import SwiftUI
+import PhotosUI
+
+internal struct PhotosPickerView: View {
+    @Environment(\.backportDismiss) private var dismiss
+    @Binding var selection: [Backport<Any>.PhotosPickerItem]
+
+    let filter: Backport<Any>.PHPickerFilter?
+    let maxSelection: Int?
+    let selectionBehavior: Backport<Any>.PhotosPickerSelectionBehavior
+    let encoding: Backport<Any>.PhotosPickerItem.EncodingDisambiguationPolicy
+    let library: PHPhotoLibrary
+
+    private enum Source: String, CaseIterable, Identifiable {
+        var id: Self { self }
+        case photos = "Photos"
+        case albums = "Albums"
+    }
+
+    @State private var source: Source = .photos
+
+    var body: some View {
+        NavigationView {
+            List {
+
+            }
+            .navigationBarTitle(Text("Photos"), displayMode: .inline)
+            .backport.toolbar {
+                Backport.ToolbarItem(placement: .primaryAction) {
+                    Text("Done")
+                }
+
+                Backport.ToolbarItem(placement: .cancellationAction) {
+                    Text("Cancel")
+                }
+
+                Backport.ToolbarItem(placement: .principal) {
+                    Text("Principal")
+                }
+            }
+//            .backport.toolbar {
+//                picker
+//            } leading: {
+//                Button("Cancel") {
+//                    dismiss()
+//                }
+//            } trailing: {
+//                Button("Add") {
+//
+//                }
+//                .font(.body.weight(.semibold))
+//                .disabled(selection.isEmpty)
+//                .opacity(maxSelection == 1 ? 0 : 1)
+//            }
+//            .controller { controller in
+//                if #available(iOS 14, *) { } else {
+//                    guard controller?.navigationItem.titleView == nil else { return }
+//                    controller?.navigationItem.titleView = UIHostingController(rootView: picker, ignoreSafeArea: false).view
+//                }
+//            }
+        }
+        .backport.interactiveDismissDisabled()
+    }
+
+    private var picker: some View {
+        Picker("", selection: $source) {
+            ForEach(Source.allCases) { source in
+                Text(source.rawValue)
+                    .tag(source)
+            }
+        }
+        .pickerStyle(.segmented)
+        .fixedSize()
+    }
+}
+
+//private extension Backport where Wrapped: View {
+//    @ViewBuilder
+//    func toolbar<Leading: View, Trailing: View, Principal: View>(@ViewBuilder principal: () -> Principal, @ViewBuilder leading: () -> Leading, @ViewBuilder trailing: () -> Trailing) -> some View {
+//        if #available(iOS 14, *) {
+//            content.toolbar {
+////                ToolbarItem(placement: .navigationBarLeading, content: leading)
+////                ToolbarItem(placement: .navigationBarTrailing, content: trailing)
+////                ToolbarItem(placement: .principal, content: principal)
+//            }
+//        } else {
+//            content
+//                .navigationBarItems(leading: leading(), trailing: trailing())
+//        }
+//    }
+//}
+#endif

Sources/SwiftUIBackports/Shared/Toolbar/Toolbar.swift

@@ -0,0 +1,122 @@
+#if os(iOS)
+import SwiftUI
+
+public extension Backport<Any> {
+    enum ToolbarItemPlacement {
+        case automatic
+        case primaryAction
+        case confirmationAction
+        case cancellationAction
+        case destructiveAction
+        case principal
+
+        var isLeading: Bool {
+            switch self {
+            case .cancellationAction:
+                return true
+            default:
+                return false
+            }
+        }
+
+        var isTrailing: Bool {
+            switch self {
+            case .automatic, .primaryAction, .confirmationAction, .destructiveAction:
+                return true
+            default:
+                return false
+            }
+        }
+    }
+
+    struct ToolbarItem: View {
+        let placement: Backport.ToolbarItemPlacement
+        let content: AnyView
+
+        public init<Content: View>(placement: Backport.ToolbarItemPlacement, @ViewBuilder content: () -> Content) {
+            self.placement = placement
+            self.content = AnyView(content())
+        }
+
+        public var body: some View {
+            content
+        }
+    }
+}
+
+extension Collection where Element == Backport<Any>.ToolbarItem, Indices: RandomAccessCollection, Indices.Index: Hashable {
+    @ViewBuilder var content: some View {
+        if !isEmpty {
+            HStack {
+                ForEach(indices, id: \.self) { index in
+                    self[index].content
+                }
+            }
+        }
+    }
+}
+
+@available(iOS, introduced: 13, deprecated: 14)
+public extension Backport where Wrapped: View {
+    @ViewBuilder
+    func toolbar(@BackportToolbarContentBuilder _ items: () -> [Backport<Any>.ToolbarItem]) -> some View {
+        let items = items()
+        content
+            .navigationBarItems(leading: items.filter { $0.placement.isLeading }.content, trailing: items.filter { $0.placement.isTrailing }.content)
+            .controller { controller in
+                controller?.navigationItem.titleView = UIHostingController(
+                    rootView: items.filter { $0.placement == .principal }.content,
+                    ignoreSafeArea: false
+                ).view
+            }
+    }
+}
+
+@resultBuilder
+public struct BackportToolbarContentBuilder { }
+public extension BackportToolbarContentBuilder {
+    static func buildBlock() -> [Backport<Any>.ToolbarItem] {
+        [Backport<Any>.ToolbarItem(placement: .automatic, content: { EmptyView() })]
+    }
+
+    static func buildBlock(_ content: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [content]
+    }
+
+    static func buildIf(_ content: Backport<Any>.ToolbarItem?) -> [Backport<Any>.ToolbarItem?] {
+        [content].compactMap { $0 }
+    }
+
+    static func buildEither(first: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [first]
+    }
+
+    static func buildEither(second: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [second]
+    }
+
+    static func buildLimitedAvailability(_ content: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [content]
+    }
+
+    static func buildBlock(_ c0: Backport<Any>.ToolbarItem, _ c1: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [c0, c1]
+    }
+
+    static func buildBlock(_ c0: Backport<Any>.ToolbarItem, _ c1: Backport<Any>.ToolbarItem, _ c2: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [c0, c1, c2]
+    }
+
+    static func buildBlock(_ c0: Backport<Any>.ToolbarItem, _ c1: Backport<Any>.ToolbarItem, _ c2: Backport<Any>.ToolbarItem, _ c3: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [c0, c1, c2, c3]
+    }
+
+    static func buildBlock(_ c0: Backport<Any>.ToolbarItem, _ c1: Backport<Any>.ToolbarItem, _ c2: Backport<Any>.ToolbarItem, _ c3: Backport<Any>.ToolbarItem, _ c4: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [c0, c1, c2, c3, c4]
+    }
+
+    static func buildBlock(_ c0: Backport<Any>.ToolbarItem, _ c1: Backport<Any>.ToolbarItem, _ c2: Backport<Any>.ToolbarItem, _ c3: Backport<Any>.ToolbarItem, _ c4: Backport<Any>.ToolbarItem, _ c5: Backport<Any>.ToolbarItem) -> [Backport<Any>.ToolbarItem] {
+        [c0, c1, c2, c3, c4, c5]
+    }
+}
+#endif

Sources/SwiftUIBackports/iOS/PresentationDetents/InteractiveDismiss.swift

@@ -74,11 +74,7 @@ public extension Backport where Wrapped: View {
     @available(watchOS, deprecated: 9)
     func interactiveDismissDisabled(_ isDisabled: Bool = true) -> some View {
         #if os(iOS)
-        if #available(iOS 15, *) {
-            content.background(Backport<Any>.Representable(isModal: isDisabled, onAttempt: nil))
-        } else {
-            content
-        }
+        content.background(Backport<Any>.Representable(isModal: isDisabled, onAttempt: nil))
         #else
         content
         #endif
@@ -154,11 +150,7 @@ public extension Backport where Wrapped: View {
     @ViewBuilder
     func interactiveDismissDisabled(_ isDisabled: Bool = true, onAttempt: @escaping () -> Void) -> some View {
         #if os(iOS)
-        if #available(iOS 15, *) {
-            content.background(Backport<Any>.Representable(isModal: isDisabled, onAttempt: onAttempt))
-        } else {
-            content
-        }
+        content.background(Backport<Any>.Representable(isModal: isDisabled, onAttempt: onAttempt))
         #else
         content
         #endif