1.介绍

播放视频文件。

2.iOS9.0以前使用

2.1框架

#import <MediaPlayer/MediaPlayer.h>
控制器类 ：MPMoviePlayerViewController
播放视图类：MPMoviePlayerController

2.1 MPMoviePlayerViewController 视频弹出控制器方式

//第一种弹出控制器方式
- (void)loadMovie{
    //1.创建URL
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video1.mp4" withExtension:nil];
    //2.创建视频播放控制器
    MPMoviePlayerViewController *vc = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
    //3.弹出视频播放控制器
    [self presentMoviePlayerViewControllerAnimated:vc];
    //4.视频播放器代码退出 -- 在视频播放完之后退出
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        //让窗口消失
        [self dismissMoviePlayerViewControllerAnimated];
    });
}

//第二种弹出控制器方式
- (void)loadMovie{
    //1.创建URL
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video1.mp4" withExtension:nil];
    //2.创建视频播放控制器
    MPMoviePlayerViewController *vc = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
    //3.弹出视频播放控制器
    [self presentViewController:vc animated:YES completion:nil];
    //4.视频播放器代码退出 -- 在视频播放完之后退出
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(4.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        //让窗口消失
        [self dismissViewControllerAnimated:YES completion:nil];
    });
}

3.2 MPMoviePlayerController 在某个View中播放

- (void)loadMovie{
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video4.mp4" withExtension:nil];
    self.mpc = [[MPMoviePlayerController alloc] initWithContentURL:url];
    // 注意: 需要配置frame值, 否则有可能看不到
    self.mpc.view.frame = self.tempView.bounds;
    //将播放视频View添加当前的某个View上
    [self.tempView addSubview:self.mpc.view];
    // 播放视频
    [self.mpc play];
}

设置MPMoviePlayerController显示的一些属性

- (void)loadMovie{
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video4.mp4" withExtension:nil];
    self.mpc = [[MPMoviePlayerController alloc] initWithContentURL:url];
    // 注意: 需要配置frame值, 否则有可能看不到
    self.mpc.view.frame = self.tempView.bounds;
    [self.tempView addSubview:self.mpc.view];
    //控制栏样式
    /**
     MPMovieControlStyleNone,       没有控制界面
     MPMovieControlStyleEmbedded,   嵌入的控制界面
     MPMovieControlStyleFullscreen,     全屏的控制界面
     */
    self.mpc.controlStyle = MPMovieControlStyleEmbedded;    // 默认
    //视频拉伸模式
    /**
     MPMovieScalingModeNone,       没有拉伸
     MPMovieScalingModeAspectFit,  保持比例拉伸
     MPMovieScalingModeAspectFill,   保持比例填充
     MPMovieScalingModeFill         拉伸填充
     */
    self.mpc.scalingMode = MPMovieScalingModeAspectFit; // 默认
    // 视频准备并且播放
    [self.mpc prepareToPlay];
    // 视频播放
    // [self.mpc play];
    // 视频暂停
    // [self.mpc pause];
    // 视频停止
    // [self.mpc stop];
}

2.3视频播放完成的通知

// 监听播放完成的通知
- (void)registerNotification{
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didFinishAction:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
}
- (void)didFinishAction:(NSNotification *)notification{
    NSLog(@"播放完成, %@", notification);
    MPMovieFinishReason reason = [notification.userInfo[MPMoviePlayerPlaybackDidFinishReasonUserInfoKey] integerValue];
    /**
     MPMovieFinishReasonPlaybackEnded, 播放结束
     MPMovieFinishReasonPlaybackError, 播放完成
     MPMovieFinishReasonUserExited 播放退出
     */
    if (reason == MPMovieFinishReasonPlaybackEnded) {
        //播放结束
    }
}
// 移除通知
- (void)dealloc{
    [[NSNotificationCenter defaultCenter] removeObserver:self name:
     MPMoviePlayerPlaybackDidFinishNotification object:nil];
}

3.iOS9.0以后

3.1在View中播放

3.1.1框架

#import <AVFoundation/AVFoundation.h>
类: AVPlayer

3.1.2使用流程

- (void)avplayerLayerTest
{
    //1.获得视频的URL
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video2.mp4" withExtension:nil];
    //2.创建播放器
    AVPlayer *player = [[AVPlayer alloc] initWithURL:url];
    //3.创建播放显示Layer
    self.layer = [AVPlayerLayer playerLayerWithPlayer:player];
    //4.将播放Layer添加到View中
    [self.tempView.layer addSublayer:self.layer];
    //5.设置显示layer的frame
    self.layer.frame = self.tempView.bounds;
    //6.视频的拉伸样式
    /**
     AVLayerVideoGravityResize, more
     AVLayerVideoGravityResizeAspect 保持比例
     AVLayerVideoGravityResizeAspectFill 拉伸样式
     */
    self.layer.videoGravity = AVLayerVideoGravityResizeAspectFill;
    //7.视频播放
    [self.layer.player play];
}

3.1.3视频播放其它

- (void)vedioPauseOrPlay{
    //rate 播放比率
    if (self.layer.player.rate == 0.0) {
        // 没有播放
        [self.layer.player play];
    } else if(self.layer.player.rate == 1.0) {
        // 正常播放
        [self.layer.player pause];
    }
}

3.2控制器播放

3.2.1框架

#import <AVKit/AVKit.h>
类: AVPlayerViewController

3.2.2使用流程

- (void)videoController{
    //1.创建控制器
    AVPlayerViewController *pvc = [[AVPlayerViewController alloc] init];
    //2.获得视频的URL
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"video2.mp4" withExtension:nil];
    //3.创建播放类
    AVPlayer *player = [[AVPlayer alloc] initWithURL:url];
    //4.对播放控制器赋值
    pvc.player = player;
    //5.弹出控制器
    [self presentViewController:pvc animated:YES completion:nil];
    //6.开始播放  注意:player必须手动调用, 才会播放视频
    [pvc.player play];
}