iOS中视频播放器的简单封装详解

2020-01-18 16:55:21王振洲

CLFullViewController中设置可以旋转和旋转方向


- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
 return UIInterfaceOrientationMaskLandscape;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
 return YES;
}

全屏播放按钮点击事件


/** 全屏按钮点击事件 */
- (IBAction)fullViewBtnClick:(UIButton *)sender {
 sender.selected = !sender.selected;
 [self videoplayViewSwitchOrientation:sender.selected];
}
/** 弹出全屏播放器 */
- (void)videoplayViewSwitchOrientation:(BOOL)isFull
{
 if (isFull) {
  [self.contrainerViewController presentViewController:self.fullVc animated:NO completion:^{
   [self.fullVc.view addSubview:self];
   self.center = self.fullVc.view.center;

   [UIView animateWithDuration:0.15 delay:0.0 options:UIViewAnimationOptionLayoutSubviews animations:^{
    self.frame = self.fullVc.view.bounds;
   } completion:nil];
  }];
 } else {
  [self.fullVc dismissViewControllerAnimated:NO completion:^{
   [self.contrainerViewController.view addSubview:self];

   [UIView animateWithDuration:0.15 delay:0.0 options:UIViewAnimationOptionLayoutSubviews animations:^{
    self.frame = CGRectMake(0, 200, self.contrainerViewController.view.bounds.size.width, self.contrainerViewController.view.bounds.size.width * 9 / 16);
   } completion:nil];
  }];
 }
}

注意:这里需要拿到外面控制器来Moda出全屏播放控制器,所以给CLAVPlayerView添加contrainerViewController属性来拿到控制器。

简单封装

此时已经实现了播放器基本的功能,接下来考虑如何封装能使我们使用起来更加方便,其实我们已经将大部分封装完成,接下来需要做的就是提供简单易用的接口,使外部可以轻松调用实现播放器。

1、提供类方法快速创建播放器


+ (instancetype)videoPlayView
{
 return [[[NSBundle mainBundle]loadNibNamed:@"CLAVPlayerView" owner:nil options:nil]lastObject];
}

2、播放视频的资源应该由外部决定,因此我们提供urlString属性用来接收视频的资源,然后通过重写其set方法来播放视频
/** 需要播放的视频资源set方法 */


-(void)setUrlString:(NSString *)urlString
{
 _urlString = urlString;
 NSURL *url = [NSURL URLWithString:urlString];
 self.playerItem = [AVPlayerItem playerItemWithURL:url];
}

此时我们在外部使用播放器就非常简单了,无需考虑内部逻辑,只需快速创建CLAVPlayerView,添加到控制器View,设置其frame,然后指定其播放视频资源就可以了。


- (void)viewDidLoad {
 [super viewDidLoad];
 [self setUpVideoPlayView]; 
 self.playView.urlString = @"http://www.easck.com/resources/videos/minion_02.mp4";
}
-(void)setUpVideoPlayView
{
 self.playView = [CLAVPlayerView videoPlayView];
 self.playView.frame = CGRectMake(0, 200, self.view.frame.size.width, self.view.frame.size.width * 9 / 16);
 self.playView.contrainerViewController = self;
 [self.view addSubview:self.playView];
}