播放完成后如何自动关闭 AVPlayer？

Question

我有一个使用 AVPlayerViewController 播放本地视频的应用程序。但是当视频播放完毕后，我希望它自动关闭（就像 MPMoviePlayerViewController 曾经做的那样）。

发布这个问题后，我设法解决了这个问题，部分归功于下面的答案，部分来自 Apples "Guides and Sample code"。

这是对我有用的代码：

#import "ViewController.h"
@import AVFoundation;
@import AVKit;


@interface ViewController ()

@property(nonatomic, readonly) AVPlayerItem *currentItem;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(void)playerItemDidReachEnd:(NSNotification *) notification {
    //remove the player
   [self dismissViewControllerAnimated:YES completion:nil];
}

- (IBAction)playVideo:(id)sender {

    // grab a local URL to our video
    NSURL *videoURL = [[NSBundle mainBundle]URLForResource:@"bagare" withExtension:@"mp4"];

    // create an AVPlayer
    AVPlayer *player = [AVPlayer playerWithURL:videoURL];

    // create a player view controller
    AVPlayerViewController *controller = [[AVPlayerViewController alloc]init];
    controller.player = player;
    [player play];
    [self presentViewController:controller animated:YES completion:nil];

    // show the view controller
      controller.view.frame = self.view.frame;

    [[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(playerItemDidReachEnd:)
    name:AVPlayerItemDidPlayToEndTimeNotification
    object:_currentItem];

  }

@end

Answer 1

这应该有效：

[[NSNotificationCenter defaultCenter] addObserver:self 
    selector:@selector(videoDidFinish:) 
    name:AVPlayerItemDidPlayToEndTimeNotification
    object:[controller.player currentItem]];

- (void)videoDidFinish:(id)notification
{
    AVPlayerItem *p = [notification object];
    //do something with player if you want

    [[NSNotificationCenter defaultCenter] removeObserver:self];

    //fade out / remove subview
}

Answer 2

NSURL *url=[NSURL URLWithString:@"URLLINK"];
AVAsset *avAsset = [AVAsset assetWithURL:url];
AVPlayerItem *playerItem = [[AVPlayerItem alloc]initWithAsset:avAsset];

订阅 AVPlayerItem 的 DidPlayToEndTime 通知。

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(itemDidFinishPlaying:) name:AVPlayerItemDidPlayToEndTimeNotification object:playerItem];

将 AVPlayerItem 传递给新玩家

 AVPlayer *player = [AVPlayer playerWithURL:videoURL]
   AVPlayerViewController *controller=[[AVPlayerViewController alloc]init];
    controller.player=player;
    [player play];
    [self presentViewController:controller animated:YES completion:nil];

此处删除播放器关闭或播放器添加视图

-(void)itemDidFinishPlaying:(NSNotification *) notification {
[self dismissViewControllerAnimated:YES completion:nil];
    [[NSNotificationCenter defaultCenter]removeObserver:self name:AVPlayerItemDidPlayToEndTimeNotification object:playerItem];
}

Answer 3

在 .h 文件中

@property(nonatomic, strong)AVPlayerViewController *controller;

在 .m 文件中：

  - (IBAction)playVideo:(id)sender {

    // grab a local URL to our video
    NSURL *videoURL = [[NSBundle mainBundle]URLForResource:@"bagare" withExtension:@"mp4"];

    // create an AVPlayer
    AVPlayer *player = [AVPlayer playerWithURL:videoURL];

    // create a player view controller
    self.controller = [[AVPlayerViewController alloc]init];
    controller.player = player;
    [player play];
    [self presentViewController:controller animated:YES completion:nil];

    // show the view controller
      controller.view.frame = self.view.frame;

    [[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(playerItemDidReachEnd:)
    name:AVPlayerItemDidPlayToEndTimeNotification
    object:_currentItem];

  }

解雇：

- (void)playerItemDidReachEnd:(NSNotification *)notification {
    [self.controller dismissViewControllerAnimated:YES completion:nil];
}

播放完成后如何自动关闭 AVPlayer？

How do I dismiss the AVPlayer automatically when playback has completed?

objective-c

ios

avplayer

avkit

avplayerviewcontroller