yumoqing
f14d47b5c8
- PlayerNSView: AVPlayerLayer as sublayer (not layer= replacement) NSView internally manages a sublayer array; replacing the backing layer directly causes dangling refs during autorelease pool drain - cleanup(): only pause + remove observers, no replaceCurrentItem CoreMedia internal state gets corrupted when item is replaced during view teardown; let it release naturally with deinit
83 lines
2.1 KiB
Swift
83 lines
2.1 KiB
Swift
import SwiftUI
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import AVFoundation
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// MARK: - 跨平台AVPlayer渲染
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#if os(iOS)
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import UIKit
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struct VideoPlayerRepresentable: UIViewRepresentable {
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let player: AVPlayer
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func makeUIView(context: Context) -> PlayerUIView {
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let view = PlayerUIView()
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view.player = player
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return view
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}
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func updateUIView(_ uiView: PlayerUIView, context: Context) {
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uiView.player = player
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}
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}
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class PlayerUIView: UIView {
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override static var layerClass: AnyClass { AVPlayerLayer.self }
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var player: AVPlayer? {
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get { (layer as? AVPlayerLayer)?.player }
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set { (layer as? AVPlayerLayer)?.player = newValue }
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}
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override var contentMode: UIView.ContentMode {
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get { (layer as? AVPlayerLayer)?.videoGravity == .resizeAspectFill ? .scaleAspectFill : .scaleAspectFit }
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set {
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(layer as? AVPlayerLayer)?.videoGravity = newValue == .scaleAspectFill ? .resizeAspectFill : .resizeAspect
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}
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}
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}
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#elseif os(macOS)
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import AppKit
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struct VideoPlayerRepresentable: NSViewRepresentable {
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let player: AVPlayer
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func makeNSView(context: Context) -> PlayerNSView {
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let view = PlayerNSView()
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view.player = player
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return view
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}
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func updateNSView(_ nsView: PlayerNSView, context: Context) {
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nsView.player = player
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}
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}
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class PlayerNSView: NSView {
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private let playerLayer = AVPlayerLayer()
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override init(frame: NSRect) {
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super.init(frame: frame)
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wantsLayer = true
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playerLayer.videoGravity = .resizeAspect
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}
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required init?(coder: NSCoder) { fatalError() }
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override func layout() {
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super.layout()
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// 确保 playerLayer 作为 sublayer 存在（不要在 init 中 addSublayer，
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// 因为 wantsLayer=true 后 layer 可能还没创建）
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if playerLayer.superlayer !== layer {
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layer?.addSublayer(playerLayer)
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}
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playerLayer.frame = bounds
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}
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var player: AVPlayer? {
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get { playerLayer.player }
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set { playerLayer.player = newValue }
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}
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}
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#endif
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