音乐播放AVPlayer

在控制器中，引入

//引入音频、视频库
#import <AVFoundation/AVFoundation.h>

声明一个player变量

@interface ViewController ()
@property (nonatomic , strong) AVPlayer *player;

@end

导入歌曲到项目：

demo.png

播放本地音乐：

//播放音乐
    AVAudioSession *session = [AVAudioSession sharedInstance];//它是一个单例，管理音视频
    [session setActive:YES error:nil];
    [session setCategory:AVAudioSessionCategoryPlayback error:nil];
    
    //1资源
    NSBundle *boundle = [NSBundle mainBundle];
    //url 路径
    NSURL *url = [boundle URLForResource:@"冰雨" withExtension:@"mp3"];
    _player = [[AVPlayer alloc]initWithURL:url];//初始化播放对象
    [_player setVolume:1.0];//设置声音大小 最大1.0
    [_player play];
    

播放下一首歌曲：
1，初始化_player

    //1资源
    NSBundle *boundle = [NSBundle mainBundle];
    //url 路径
    NSURL *url = [boundle URLForResource:@"冰雨" withExtension:@"mp3"];
    AVPlayerItem *item = [[AVPlayerItem alloc]initWithURL:url];
    _player = [[AVPlayer alloc]initWithPlayerItem:item];//[[AVPlayer alloc]initWithURL:url];//初始化播放对象
    [_player setVolume:1.0];//设置声音大小 最大1.0
    [_player play];

2,播放下一首：

 //1资源
        NSBundle *boundle = [NSBundle mainBundle];
        //url 路径
        NSURL *url = [boundle URLForResource:@"董小姐" withExtension:@"mp3"];
        AVPlayerItem *item = [[AVPlayerItem alloc]initWithURL:url];
        
        //播放下一首歌曲
        [_player replaceCurrentItemWithPlayerItem:item];