Question

我正在尝试使用最近在 IOS9 中引入的 AVPictureInPictureController 播放视频，使用此代码：

AVPlayer *_AVPlayer = [AVPlayer playerWithURL:url];
AVPlayerLayer *_layer = [AVPlayerLayer playerLayerWithPlayer:_AVPlayer];
_layer.frame = [[UIApplication sharedApplication] delegate].window.bounds;
AVPictureInPictureController *_AVPictureInPictureController = [[AVPictureInPictureController alloc] initWithPlayerLayer:_layer];
_AVPictureInPictureController.delegate = self;

但是如何在屏幕上显示_AVPictureInPictureController？我试过了

[self presentViewController:_AVPictureInPictureController animated:YES completion:nil];

和

[self presentMoviePlayerViewControllerAnimated:_AVPictureInPictureController];

但它不起作用）：

我也试过

[self.view.layer addSublayer: layer];

但我只在屏幕上显示没有按钮或控件的AVPlayer ..

我曾经使用过 MPMoviePlayerViewController ，但由于它已在iOS 9中正式弃用，我不能再使用它了。

你能帮我展示 _AVPictureInPictureController !!

提前致谢

Answer 1

当我查看关于AVPictureInPictureController的文档以及关于AVPictureInPictureController的Swift中的Apple示例代码时。没有球员。在doc中，您需要创建一个Button。并且您需要检查当前视频是否为AVPictureInPictureController或不符合以下内容。

拳头你需要设置AVAudioSessionCategoryPlayback。您需要为项目执行Xcode功能视图，在后台模式部分选择音频和AirPlay 。

在您的app appate中，您需要设置以下代码：

  [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
  [[AVAudioSession sharedInstance] setActive: YES error: nil];

现在您需要使用以下代码执行使用AVPlayer播放视频的代码：

- (void)viewDidLoad {
    [super viewDidLoad];

    NSString *path = [[NSBundle mainBundle] pathForResource:@"samplemovie" ofType:@"mov"];
    NSURL *url = [NSURL fileURLWithPath:path];
    self.AVPlayer = [AVPlayer playerWithURL:url];
    self.layer = [AVPlayerLayer playerLayerWithPlayer:_AVPlayer];
    //_layer.frame = [[UIApplication sharedApplication] delegate].window.bounds;

    [self.layer setFrame:CGRectMake(0, 0, self.view.frame.size.width-100, self.view.frame.size.height-72)];
    [self.layer setVideoGravity:AVLayerVideoGravityResize];
    [self.view.layer addSublayer:_layer];

    [_AVPlayer play];
    [self setupSuport];   //Here you need to check that `AVPictureInPictureController` is supported or not with another method


}


-(void)setupSuport
{
    if([AVPictureInPictureController isPictureInPictureSupported])
    {

      _AVPictureInPictureController =  [[AVPictureInPictureController alloc] initWithPlayerLayer:_layer];
        _AVPictureInPictureController.delegate = self;

    }
    else
    {        
     // not supported PIP start button desable here
    }

}

如果支持，这是PIP的按钮切换代码：

-(IBAction)actionPIPStart:(UIButton*)sender
{

    if (_AVPictureInPictureController.pictureInPictureActive) {
        [_AVPictureInPictureController stopPictureInPicture];
    }
    else {
        [_AVPictureInPictureController startPictureInPicture];
    }
}

您现在可以查看其代表：

- (void)pictureInPictureController:(AVPictureInPictureController *)pictureInPictureController restoreUserInterfaceForPictureInPictureStopWithCompletionHandler:(void (^)(BOOL restored))completionHandler;
- (void)pictureInPictureControllerDidStopPictureInPicture:(AVPictureInPictureController *)pictureInPictureController;
- (void)pictureInPictureControllerDidStartPictureInPicture:(AVPictureInPictureController *)pictureInPictureController;
- (void)pictureInPictureControllerWillStopPictureInPicture:(AVPictureInPictureController *)pictureInPictureController;
- (void)pictureInPictureController:(AVPictureInPictureController *)pictureInPictureController failedToStartPictureInPictureWithError:(NSError *)error;
- (void)pictureInPictureControllerWillStartPictureInPicture:(AVPictureInPictureController *)pictureInPictureController;

注意：以上代码仅供参考，可能是您的视频屏幕未完整填写设备屏幕。

希望信息对您有所帮助，可能是您的问题需要解决更深层次的阅读苹果文档。 AVPictureInPictureController

Answer 2

只需使用AVPlayerViewController instread，详情请查看https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/AdoptingMultitaskingOniPad/QuickStartForPictureInPicture.html

如何显示AVPictureInPictureController？

2 个答案: