Avplayer音频仅在铃声打开时起作用
使用Swiftui，我有一个自动播放和循环视频的自定义Avplayer。问题是我是否特别告诉Avplayer取消静音，它仍然被静音。物理体积按钮无效。打开/关的静音的唯一方法是将铃声实际切换到静音（静音）或不静音（取消静音）。
这是父景观：
struct VideoCacheView: View {
@State private var avPlayer: AVPlayer? = nil
public let url: String
public let thumbnailURL: String
var body: some View {
if self.avPlayer != nil {
CustomVideoPlayer(player: Binding(self.$avPlayer)!)
.onAppear {
self.avPlayer?.isMuted = false
self.avPlayer?.play()
}
}
}
}
孩子：
struct CustomVideoPlayer: UIViewControllerRepresentable {
@EnvironmentObject var cvm: CameraViewModel
@Binding var player: AVPlayer
func makeCoordinator() -> Coordinator {
return Coordinator(self)
}
func makeUIViewController(context: Context) -> AVPlayerViewController {
let controller = AVPlayerViewController()
controller.player = self.player
controller.showsPlaybackControls = false
controller.videoGravity = self.cvm.videoGravity
player.actionAtItemEnd = .none
NotificationCenter.default.addObserver(context.coordinator, selector: #selector(context.coordinator.restartPlayback), name: .AVPlayerItemDidPlayToEndTime, object: player.currentItem)
return controller
}
func updateUIViewController(_ uiViewController: AVPlayerViewController, context: Context) { }
class Coordinator: NSObject {
public var parent: CustomVideoPlayer
init(_ parent: CustomVideoPlayer) {
self.parent = parent
}
@objc func restartPlayback () {
self.parent.player.seek(to: .zero)
}
}
}
为什么我的Avplayer拥有的唯一卷控制是物理静音开关？
With SwiftUI, I have a custom avplayer that auto plays and loops the video. The problem is whether or not I specifically tell avplayer to unmute, it is still muted. The physical volume buttons have no effect. The only way to toggle mute on/off is to physically switch the ringer to silent (muted) or not silent (unmute).
Here is the parent view:
struct VideoCacheView: View {
@State private var avPlayer: AVPlayer? = nil
public let url: String
public let thumbnailURL: String
var body: some View {
if self.avPlayer != nil {
CustomVideoPlayer(player: Binding(self.$avPlayer)!)
.onAppear {
self.avPlayer?.isMuted = false
self.avPlayer?.play()
}
}
}
}
and the child:
struct CustomVideoPlayer: UIViewControllerRepresentable {
@EnvironmentObject var cvm: CameraViewModel
@Binding var player: AVPlayer
func makeCoordinator() -> Coordinator {
return Coordinator(self)
}
func makeUIViewController(context: Context) -> AVPlayerViewController {
let controller = AVPlayerViewController()
controller.player = self.player
controller.showsPlaybackControls = false
controller.videoGravity = self.cvm.videoGravity
player.actionAtItemEnd = .none
NotificationCenter.default.addObserver(context.coordinator, selector: #selector(context.coordinator.restartPlayback), name: .AVPlayerItemDidPlayToEndTime, object: player.currentItem)
return controller
}
func updateUIViewController(_ uiViewController: AVPlayerViewController, context: Context) { }
class Coordinator: NSObject {
public var parent: CustomVideoPlayer
init(_ parent: CustomVideoPlayer) {
self.parent = parent
}
@objc func restartPlayback () {
self.parent.player.seek(to: .zero)
}
}
}
Why is the only volume control my avplayer has is with the physicaly silent switch?
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评论（2）
这可以通过将
avauioSession类别设置为.playback：另请参阅 avauiosession 类别来实现这一点。当设备处于静音模式时播放音频时，设备内部模式 - 模式 - ios-swift-ios swift
This can be accomplished by setting the
AVAudioSessioncategory to.playback:See also Play Audio when device in silent mode - ios swift
https://developer.apple.apple.com/documenter.com/documentation/documentation/avplayation/avflayation/avflayation/avflayer/139990127-13990127-1390127-音量
事实证明，当Ringer处于静音模式时，音量设置为0.0。默认情况下，将卷设置为1.0，始终存在卷。
添加了以下内容：
在Videogravity系列下方的儿童视图内部
https://developer.apple.com/documentation/avfoundation/avplayer/1390127-volume
Turns out that the volume is set to 0.0 when ringer is in silent mode. By setting the volume to 1.0 by default, there is volume all the time.
Added this:
inside of the child view below the videoGravity line