iOS开发之APP启动视频

#import 

@interface ECGNCAppStartVideo ()

/** 关闭视频按钮*/
@property (strong, nonatomic) UIButton *closeButton;
/** 播放视频vc*/
@property (strong, nonatomic) AVPlayerViewController *playLayerVC;

@end

@implementation ECGNCAppStartVideo

/** 显示启动视频*/
- (void)showAppStartVideoInVC:(UIViewController *)showVC
{
    CGSize size = showVC.view.bounds.size;
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(size.width-80, 40, 50, 50);
　　//设置按钮图标
    [button setImage:[UIImage imageNamed:@"ecgnc_skip_video_button"] forState:UIControlStateNormal];
    [button addTarget:self action:@selector(videoPlayEnd) forControlEvents:UIControlEventTouchUpInside];
　　　//关闭按钮添加在window上
    [[UIApplication sharedApplication].delegate.window addSubview:button];
    _closeButton = button;
    
　　//设置视频资源url
    NSString *urlStr = [[NSBundle mainBundle] pathForResource:@"appStart.mp4" ofType:nil];
    NSURL * url = [NSURL fileURLWithPath:urlStr];
    AVPlayer *player = [[AVPlayer alloc] initWithURL:url];
    AVPlayerViewController *vc = [[AVPlayerViewController alloc] init];
    vc.showsPlaybackControls = NO;
    vc.videoGravity = AVLayerVideoGravityResizeAspectFill;
    vc.player = player;
    vc.view.frame = showVC.view.bounds;
    [showVC addChildViewController:vc];
    [showVC.view addSubview:vc.view];
    _playLayerVC = vc;
    [vc.player play];
    //注册播放结束监听
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(videoPlayEnd) name:AVPlayerItemDidPlayToEndTimeNotification object:nil];
}

/** 播放视频结束*/
- (void)videoPlayEnd
{
    //移除通知监听
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    //移除视频
    [_playLayerVC.view removeFromSuperview];
    //移除button
    [_closeButton removeFromSuperview];
}