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Xamarin：iOS 13上自动关闭AVPlayer

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我正在尝试在AVPlayer上播放视频并自动关闭。

这里是AVPlayer POPS启动时的代码

if (asset != null)
            {
                string[] keys = { "playable","hasProtectedContent" };

               asset.LoadValuesAsynchronously(keys,() =>
                {
                    DispatchQueue.MainQueue.DispatchAsync(() =>
                    {
                        // Device.BeginInvokeonMainThread(() => { 
                        if (asset == null) return;

                        playerItem = new AVPlayerItem(asset);
                        player.ReplacecurrentitemWithPlayerItem(playerItem);
                        if (playerItem != null && Element.AutoPlay)
                            player.Play();
                    });
                });
            }

这是我仅在iOS 13上遇到的错误：

[plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x60000059c5a0> F8BB1C28-BAE8-11D6-9C31-00039315CD46
[] nw_endpoint_flow_copy_multipath_subflow_counts Called on non-Multipath connection
0000000A:  0100  4          4           66
00000016:  0101  4          4           66
00000022:  0102  3          6          110
0000002E:  011A  5          8          116
0000003A:  011B  5          8          124
00000046:  0128  3          2            3
00000052:  0131  2         12          132
0000005E:  0132  2         20          144
000000A6:  0100  4          4          256
000000B2:  0101  4          4          256
000000BE:  0102  3          6          266
000000CA:  0103  3          2            6
000000D6:  0106  3          2            6
000000E2:  0115  3          2            3
000000EE:  0201  4          4          272
000000FA:  0202  4          4         7818
0000000A:  0100  3          2         3840
00000016:  0101  3          2         2400
00000022:  0102  3          6          158
0000002E:  0106  3          2            2
0000003A:  0112  3          2            1

请让我知道我在这里想念什么。

这是我用于视频播放器渲染的代码

    public class VideoPlayerRenderer : ViewRenderer<VideoPlayer,UIView>
    {
        AVPlayer player;
        AVPlayerItem playerItem;
        AVPlayerViewController _playerViewController;       // solely for ViewController property
        AVAsset asset;
        NSObject didPlayToEndObserver;

        public override UIViewController ViewController => _playerViewController;

        protected override void OnElementChanged(ElementChangedEventArgs<VideoPlayer> e)
        {
            base.OnElementChanged(e);

            if (e.NewElement != null)
            {
                if (Control == null)
                {
                    // Create AVPlayerViewController
                    _playerViewController = new AVPlayerViewController();

                    // Set Player property to AVPlayer
                    player = new AVPlayer();
                    _playerViewController.Player = player;

                    UITapGestureRecognizer uiTapGestureRecognizer = new UITapGestureRecognizer(Tapaction);
                    _playerViewController.ContentOverlayView.GestureRecognizers = new UIGestureRecognizer[] { uiTapGestureRecognizer };

                    var x = _playerViewController.View;

                    // Use the View from the controller as the native control
                    SetNativeControl(_playerViewController.View);

                    didPlayToEndObserver = AVPlayerItem.Notifications.ObserveDidPlayToEndTime(AVPlayerItem_DidPlayToEndTimeNotification);
                }

由于无法将其发布到此处，我将其删除了其他内容

jsdyhy 回答：Xamarin：iOS 13上自动关闭AVPlayer

我使用您的代码，并且对我而言效果很好，我在上一个if语句中删除了Element.AutoPlay，因为我不知道Element是什么。项目启动后，它将成功播放video：

[assembly: ExportRenderer(typeof(myVideoPlayer),typeof(VideoPlayerRenderer))]
namespace App48.iOS
{
    public class VideoPlayerRenderer : ViewRenderer<myVideoPlayer,UIView>
    {
        AVPlayer player;
        AVPlayerItem playerItem;
        AVPlayerViewController _playerViewController;       // solely for ViewController property
        AVAsset asset;

        NSError err;

        public override UIViewController ViewController => _playerViewController;

        protected override void OnElementChanged(ElementChangedEventArgs<myVideoPlayer> e)
        {
            base.OnElementChanged(e);

            if (e.NewElement != null)
            {
                if (Control == null)
                {
                    // Create AVPlayerViewController
                    _playerViewController = new AVPlayerViewController();

                    // Set Player property to AVPlayer
                    player = new AVPlayer();
                    _playerViewController.Player = player;

                    // Use the View from the controller as the native control
                    SetNativeControl(_playerViewController.View);

                    asset = AVAsset.FromUrl(new NSUrl("https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"));
                    if (asset != null)
                    {
                        string[] keys = { "playable","hasProtectedContent" };

                        asset.LoadValuesAsynchronously(keys,() =>
                        {
                            DispatchQueue.MainQueue.DispatchAsync(() =>
                            {
                                // Device.BeginInvokeOnMainThread(() => { 
                                if (asset == null) return;

                                Console.WriteLine(asset.StatusOfValue("playable",out err));

                                playerItem = new AVPlayerItem(asset);
                                player.ReplaceCurrentItemWithPlayerItem(playerItem);
                                if (playerItem != null)
                                    player.Play();
                            });
                        });
                    }
                }
            }
        }

    }
}

在xamarin.forms中：

<StackLayout>
    <!-- Place new controls here -->
    <app48:myVideoPlayer
       HorizontalOptions="Center"
       VerticalOptions="CenterAndExpand" />
</StackLayout>

和

public class myVideoPlayer : View { 

}

注意：我在iOS模拟器13.1上进行了测试。

c#iosxamarin.formsxamarin.ios
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