iOS 加载网络视频之（AVFoundation.framewor）的MPMoviePlayerController

//引用 AVFoundation.framework

#import "FirstViewController.h"

#import <MediaPlayer/MediaPlayer.h>

@interfaceFirstViewController ()

//视频播放器

@property (strong,nonatomic)MPMoviePlayerController *player;

@property (strong,nonatomic)UIImageView *imageView;

@end

@implementation FirstViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    

}

- (void)viewWillAppear:(BOOL)animated {

    

}

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

    // 本地视频

//        NSURL *url = [[NSBundle mainBundle]URLForResource:@"1" withExtension:@"mp4"];

//        url = [NSURL URLWithString:@"http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8"];

    // 网络视频

   //   提示：如果url中包含中文，需要添加百分号。

    NSString *urlString =@"http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8";

    NSURL *url = [NSURLURLWithString:[urlStringstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

    

   //实例化视频播放器

    self.player = [[MPMoviePlayerControlleralloc]initWithContentURL:url];

   //1设置播放器的大小

    [self.player.viewsetFrame:CGRectMake(0,200,self.view.frame.size.width,180)];//16:9是主流媒体的样式

   //2将播放器视图添加到根视图

    [self.viewaddSubview:self.player.view];

    

   //异步视频截图,可以在attimes指定一个或者多个时间。

    [self.playerrequestThumbnailImagesAtTimes:@[@10.0f,@20.0f]timeOption:MPMovieTimeOptionNearestKeyFrame];

    

//    UIImageView *thumbnailImageView = [[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 160, 90)];

//    self.imageView = thumbnailImageView;

//    [self.view addSubview:thumbnailImageView];

   //视频播放是流媒体的播放模式，所谓流媒体就是把视频数据像流水一样，边加载，边播放。

    //4播放

    //    [self.player play];

    //暂停

    //    [self.player stop];

   //通过通知中心，以观察者模式监听视频播放状态

    //1 监听播放状态

    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(stateChange)name:MPMoviePlayerPlaybackStateDidChangeNotificationobject:nil];

    //2 监听播放完成

    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(finishedPlay)name:MPMoviePlayerPlaybackDidFinishNotificationobject:nil];

    //3视频截图

    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(caputerImage:)name:MPMoviePlayerThumbnailImageRequestDidFinishNotificationobject:nil];

    //3视频截图

    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(caputerImage:)name:MPMoviePlayerThumbnailImageRequestDidFinishNotificationobject:nil];

    

    //4退出全屏通知

    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(exitFullScreen)name:MPMoviePlayerDidExitFullscreenNotificationobject:nil];

}

#pragma mark 退出全屏

- (void)exitFullScreen {

    NSLog(@"退出全屏");

}

#pragma mark -播放器事件监听

#pragma mark 视频截图这个方法是异步方法

- (void)caputerImage:(NSNotification *)notification {

    NSLog(@"截图 %@", notification);

    UIImage *image = notification.userInfo[@"MPMoviePlayerThumbnailImageKey"];

    [self.imageViewsetImage:image];

}

#pragma mark 播放器事件监听

#pragma mark 播放完成

- (void)finishedPlay {

    NSLog(@"播放完成");

}

#pragma mark 播放器视频的监听

#pragma mark 播放状态变化

/*

 MPMoviePlaybackStateStopped,  //停止

 MPMoviePlaybackStatePlaying,  //播放

 MPMoviePlaybackStatePaused,   //暂停

 MPMoviePlaybackStateInterrupted,  //中断

 MPMoviePlaybackStateSeekingForward, //快进

 MPMoviePlaybackStateSeekingBackward  //快退

 */

- (void)stateChange {

    switch (self.player.playbackState) {

        case MPMoviePlaybackStatePaused:

            NSLog(@"暂停");

            break;

        case MPMoviePlaybackStatePlaying:

            //设置全屏播放

            [self.playersetFullscreen:YESanimated:YES];

            NSLog(@"播放");

            break;

        case MPMoviePlaybackStateStopped:

           //注意：正常播放完成，是不会触发MPMoviePlaybackStateStopped事件的。

           //调用[self.player stop];方法可以触发此事件。

            NSLog(@"停止");

            break;

        default:

            break;

    }

}

@end