Ios 丰富的推送通知-视频赢得'；无法在通知内容扩展中播放

我正在开发rich notification的

通知内容扩展

，并且能够成功加载

图像

和

gif

，如下图所示：

现在我正在尝试播放视频，我正在为播放它做以下代码

- (void)didReceiveNotification:(UNNotification *)notification {
    //self.label.text = @"HELLO world";//notification.request.content.body;

    if(notification.request.content.attachments.count > 0)
    {

        UNNotificationAttachment *Attachen = notification.request.content.attachments.firstObject;


        NSLog(@"====url %@",Attachen.URL);
        AVAsset *asset = [AVAsset assetWithURL:Attachen.URL];
        AVPlayerItem *item = [AVPlayerItem playerItemWithAsset:asset];

        AVPlayer  *player = [AVPlayer playerWithPlayerItem:item];
        AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
        playerLayer.contentsGravity = AVLayerVideoGravityResizeAspect;
        player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
        playerLayer.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);

            [self.VideoPlayerView.layer addSublayer:playerLayer];
        [player play];
    }
}

在NSLog中，我还获得了视频的文件url。但这不起作用。如果有人有这样的解决方案，请给予帮助

---

谢谢。

这是我在代码中犯的一个很小的错误。如果我执行以下代码，我们必须与

startAccessingSecurityScopedResource检查

- (void)didReceiveNotification:(UNNotification *)notification {

    if(notification.request.content.attachments.count > 0)
    {
            UNNotificationAttachment *Attachen = notification.request.content.attachments.firstObject;

            if(Attachen.URL.startAccessingSecurityScopedResource)
            {

                NSLog(@"====url %@",Attachen.URL);
                AVAsset *asset = [AVAsset assetWithURL:Attachen.URL];
                AVPlayerItem *item = [AVPlayerItem playerItemWithAsset:asset];

                AVPlayer  *player = [AVPlayer playerWithPlayerItem:item];
                AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
                playerLayer.contentsGravity = AVLayerVideoGravityResizeAspect;
                player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
                playerLayer.frame = CGRectMake(0, 0, self.VideoPlayerView.frame.size.width, self.VideoPlayerView.frame.size.height);

                [self.VideoPlayerView.layer addSublayer:playerLayer];
                [player play];

            }                
        }
}

视频正在播放。呜呜

检查你的代码。确保资源已下载到您的磁盘
如果你想播放一个url，你应该从通知用户信息中获取url并在你的内容扩展中播放
要解决Ankur patel在评论中提出的问题，请执行以下操作：

您应该创建通知内容扩展
-（void）direceivenotification:（UNNotification*）通知
是一个未通知的ContentExtension协议
以下是在Swift 5中播放通知中的视频的解决方案

func didReceive(_ notification: UNNotification) {
    let content = notification.request.content
    titleLabel.text = content.title
    subtitleLabel.text = content.body
    
    playerController = AVPlayerViewController()
    preferredContentSize.height = 475
    
    // fetch your url string from notification payload.
    let urlString = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ForBiggerBlazes.mp4"
    if let url = URL(string: urlString) {
        guard let playerController = self.playerController else { return }
        let player = AVPlayer(url: url)
        playerController.player = player
        playerController.view.frame = self.playerBackgroundView.bounds
        playerBackgroundView.addSubview(playerController.view)
        addChild(playerController)
        playerController.didMove(toParent: self)
        player.play()
    }
}

使用通知内容扩展还有一些条件，我希望您能遵守所有这些条件。
大家好，我可以在通知服务扩展中播放视频吗。如果是，那么如何进行（void）didReceiveNotification:（UNNotification*）notification您在NotificationService.h或Appdelegate.h中使用此方法了吗？我仍然无法使用notification Service Extension成功下载视频，但无法播放video@Nitin嘿，我需要你的帮助。你能帮我吗？当然可以连接skype nitin。Gohel10avLayerViewController（）未知。很多事情都没有被描述。请描述一下。你可以查看我的文章以了解全部细节。这是有效的解决办法。此外，本文还附带了完整的代码。