一、音頻播放
1.音效播放（短時間的音頻文件）
1> AudioServicesCreateSystemSoundID
2> AudioServicesPlaySystemSound

2.音樂播放（長時間的音頻文件）
1> AVAudioPlayer
只能播放本地的音頻文件
>MPMusicPlayerController
- (void)viewDidLoad {
??? [super viewDidLoad];
?? ?
??? VideoPlayView *viewPlayView = [VideoPlayView videoPlayView];
??? viewPlayView.frame = self.imageView.bounds;
??? [self.imageView addSubview:viewPlayView];
??? viewPlayView.delegate = self;
??? self.playView = viewPlayView;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
??? AVPlayerItem *item = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:@"xxxxxxxxxxxx"]];
??? [self.playView setPlayerItem:item];
}



2> AVPlayer
能播放本地、遠程的音頻、視頻文件
基于Layer顯示，得自己去編寫控制面板
?- (AVPlayer *)player
{
??? if (_player == nil) {
??????? // 1.獲取URL(遠程/本地)

??????? NSURL *url = [NSURL URLWithString:@"xxxxxxxxxxxxxx"];
?????? ?
??????? // 2.創(chuàng)建AVPlayerItem
??????? AVPlayerItem *item = [AVPlayerItem playerItemWithURL:url];
?????? ?
??????? // 3.創(chuàng)建AVPlayer
??????? _player = [AVPlayer playerWithPlayerItem:item];
?????? ?
??????? // 4.添加AVPlayerLayer
??????? AVPlayerLayer *layer = [AVPlayerLayer playerLayerWithPlayer:self.player];
??????? layer.frame = CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.width);
??????? [self.view.layer addSublayer:layer];
??? }
??? return _player;
}
ps:AVPlayer用于可以通過設置代理攔截發(fā)送請求，做到邊緩存邊播放功能，具體實現回頭po上源代碼。

3> MPMoviePlayerController
能播放本地、遠程的音頻、視頻文件
自帶播放控制面板（暫停、播放、播放進度、是否要全屏）
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
??? [self.playerController play];
}

#pragma mark - 懶加載代碼
- (MPMoviePlayerController *)playerController
{
??? if (_playerController == nil) {
??????? // 1.獲取視頻的URL
??????? NSURL *url = [NSURL URLWithString:@"xxxxxxxxxxx"];
?????? ?
??????? // 2.創(chuàng)建控制器
??????? _playerController = [[MPMoviePlayerController alloc] initWithContentURL:url];
?????? ?
??????? // 3.設置控制器的View的位置
??????? _playerController.view.frame = CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.width );
?????? ?
??????? // 4.將View添加到控制器上
??????? [self.view addSubview:_playerController.view];
?????? ?
??????? // 5.設置屬性
??????? _playerController.controlStyle = MPMovieControlStyleNone;
??? }
??? return _playerController;
}


4> MPMoviePlayerViewController
能播放本地、遠程的音頻、視頻文件
內部是封裝了MPMoviePlayerController
播放界面默認就是全屏的
如果播放功能比較簡單，僅僅是簡單地播放遠程、本地的視頻文件，建議用這個

?

- (IBAction)play {
??? [self presentMoviePlayerViewControllerAnimated:self.playerVc];
}

#pragma mark - 懶加載
- (MPMoviePlayerViewController *)playerVc
{
??? if (_playerVc == nil) {
??????? NSURL *url = [NSURL URLWithString:@"http://v1.mukewang.com/a45016f4-08d6-4277-abe6-bcfd5244c201/L.mp4"];
?????? ?
??????? _playerVc = [[MPMoviePlayerViewController alloc] initWithContentURL:url];;
??? }
??? return _playerVc;
}

轉載于:https://www.cnblogs.com/whutDaniel/p/6042807.html

《新程序員》：云原生和全面數字化實踐50位技術專家共同創(chuàng)作，文字、視頻、音頻交互閱讀

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