?一、環境
要實現畫中畫 ios系統必須是 iOS14+
本文開發環境
xcode14.2
二、權限配置
- 在項目導航器中單擊項目，然后單擊Signing & Capabilities。
- 單擊
+ Capabilit - 搜索
Background Modes，然后雙擊將其添加為功能。 - 在新添加的
Background Modes部分，選中Audio, AirPlay, and Picture in Picture復選框。
三、實例
import Foundation
import SwiftUI
import AVKit
struct VideoPlayerView: UIViewControllerRepresentable {var videoURL: URL?// 創建UIViewControllerfunc makeUIViewController(context: Context) -> AVPlayerViewController {let controller = AVPlayerViewController()controller.player = AVPlayer(url: videoURL!)controller.allowsPictureInPicturePlayback = truecontroller.delegate = context.coordinatorreturn controller}// 更新UIViewControllerfunc updateUIViewController(_ uiViewController: AVPlayerViewController, context: Context) {uiViewController.player = AVPlayer(url: videoURL!)uiViewController.allowsPictureInPicturePlayback = trueuiViewController.showsPlaybackControls = true // 顯示控制層if #available(iOS 14.2, *) {//進入后臺時是否自動打開
// uiViewController.canStartPictureInPictureAutomaticallyFromInline = true} else {// Fallback on earlier versions}}func makeCoordinator() -> Coordinator {Coordinator(self)}class Coordinator: NSObject, AVPlayerViewControllerDelegate {var playerView: VideoPlayerViewinit(_ playerView: VideoPlayerView) {self.playerView = playerView}func playerViewController(_ playerViewController: AVPlayerViewController, restoreUserInterfaceForPictureInPictureStopWithCompletionHandler completionHandler: @escaping (Bool) -> Void) {// 在這里，你可以決定在退出畫中畫模式后是否保持在當前視圖。// 這個例子中我們選擇保持在當前視圖。completionHandler(true)}}
}struct playView: View {var body: some View {VStack {VideoPlayerView(videoURL: URL(string: "http://devimages.apple.com.edgekey.net/streaming/examples/bipbop_4x3/bipbop_4x3_variant.m3u8")!).frame(height: 400)}
// .onAppear {
// player.play()
// }
// .onDisappear {
// player.pause()
// }}
}注意：畫中畫只能在真機上運行，xcode上的模擬器沒有畫中畫功能
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