iOS在线播放视频 AVPlayer （简单就好）

.h文件
//第一步:引用AVFoundation框架，添加播放器属性 声明对象

#import   <AVFoundation/AVFoundation.h>

//创建对象

@property (nonatomic,strong)AVPlayer *player;//播放器对象

@property (nonatomic, strong) AVPlayerLayer *playerLayer;

@property (nonatomic,strong)AVPlayerItem *currentPlayerItem;

@property (nonatomic,strong)UIView *containerView;

.m

 // 2.创建AVPlayerItem

    _currentPlayerItem = [AVPlayerItem playerItemWithURL:url];

    //通过KVO来观察status属性的变化，来获得播放之前的错误信息

    [_currentPlayerItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];

context:nil];

    // 3.创建AVPlayer

    _player = [AVPlayer playerWithPlayerItem:_currentPlayerItem];

 // 4.添加AVPlayerLayer

    _playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];

      self.playerLayer.backgroundColor = [UIColor blackColor].CGColor;

    self.playerLayer.frame = CGRectMake( 0, 104, self.view.frame.size.width, self.view.frame.size.height/2.2);

    self.playerLayer.videoGravity = AVLayerVideoGravityResize;

    [self.view.layer addSublayer:self.playerLayer];

//此处可以直接播放但是建议在监听方法中播放

// [_playerplay];

//监听状态回调方法

- (void)observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object change:

(NSDictionary *)change context:(void*)context

    if([keyPathisEqualToString:@"status"]) {

        //取出status的新值

        AVPlayerItemStatus status = [change[NSKeyValueChangeNewKey]intValue];

        switch(status) {

            case AVPlayerItemStatusFailed:

//失败 做相关失败操作

                break;

            case AVPlayerItemStatusReadyToPlay:

//成功开始播放

                [_playerplay];

                break;

            case AVPlayerItemStatusUnknown:

                NSLog(@"视频资源出现未知错误");

                break;

            default:

                break;

        }

    }

    //移除监听（观察者）

    [objectremoveObserver:self forKeyPath:@"status"];

}