95 lines
3.4 KiB
Swift
95 lines
3.4 KiB
Swift
import Foundation
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import AVKit
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import Combine
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#if os(iOS)
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/// 画中画（Picture-in-Picture）控制器
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/// 封装 AVPictureInPictureController，管理 PiP 生命周期
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@MainActor
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final class PiPController: NSObject, ObservableObject {
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@Published var isPiPActive = false
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@Published var isPiPSupported = false
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private var pipController: AVPictureInPictureController?
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private weak var playerLayer: AVPlayerLayer?
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/// 用 AVPlayerLayer 初始化 PiP 控制器
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func setup(with playerLayer: AVPlayerLayer) {
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self.playerLayer = playerLayer
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guard AVPictureInPictureController.isPictureInPictureSupported() else {
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NSLog("[MiniPlayer] PiP not supported on this device")
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isPiPSupported = false
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return
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}
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isPiPSupported = true
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let pip = AVPictureInPictureController(playerLayer: playerLayer)
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pip?.delegate = self
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self.pipController = pip
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NSLog("[MiniPlayer] PiP controller initialized")
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}
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/// 切换画中画状态
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func togglePiP() {
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guard let pip = pipController else {
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NSLog("[MiniPlayer] PiP controller not initialized")
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return
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}
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if pip.isPictureInPictureActive {
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pip.stopPictureInPicture()
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} else if pip.isPictureInPicturePossible {
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pip.startPictureInPicture()
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} else {
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NSLog("[MiniPlayer] PiP not possible right now (player may not be ready)")
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}
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}
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/// 当前是否可以启动 PiP
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var canStartPiP: Bool {
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pipController?.isPictureInPicturePossible ?? false
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}
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deinit {
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pipController?.delegate = nil
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}
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}
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// MARK: - AVPictureInPictureControllerDelegate
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extension PiPController: AVPictureInPictureControllerDelegate {
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nonisolated func pictureInPictureControllerWillStartPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
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NSLog("[MiniPlayer] PiP will start")
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Task { @MainActor in self.isPiPActive = true }
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}
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nonisolated func pictureInPictureControllerDidStartPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
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NSLog("[MiniPlayer] PiP did start")
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}
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nonisolated func pictureInPictureControllerWillStopPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
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NSLog("[MiniPlayer] PiP will stop")
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}
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nonisolated func pictureInPictureControllerDidStopPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
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NSLog("[MiniPlayer] PiP did stop")
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Task { @MainActor in self.isPiPActive = false }
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}
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nonisolated func pictureInPictureController(_ pictureInPictureController: AVPictureInPictureController, failedToStartPictureInPictureWithError error: Error) {
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NSLog("[MiniPlayer] PiP failed to start: \(error.localizedDescription)")
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}
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nonisolated func pictureInPictureController(_ pictureInPictureController: AVPictureInPictureController, restoreUserInterfaceForPictureInPictureStopWithCompletionHandler completionHandler: @escaping (Bool) -> Void) {
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// 用户点击 PiP 窗口的恢复按钮时调用
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// 返回 true 表示我们已处理恢复（回到 app 内播放）
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NSLog("[MiniPlayer] PiP restore requested")
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completionHandler(true)
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}
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}
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#endif
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