iOS 音视频开发之mp3播放功能开发教程

1.创建播放控件

2.代码

#import "ViewController.h"
#import 
@interface ViewController ()
@property (nonatomic, strong) AVAudioPlayer *audioPlayer;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    //在AppDelegate - application: didFinishLaunchingWithOptions:必须设置,否则真机测试没有声音
//    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];

    // 1.加载本地的音乐文件
    NSURL *url = [[NSBundle mainBundle] URLForResource:@"西游记.mp3" withExtension:nil];
    // 2. 创建音乐播放对象
    self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
    // 3.准备播放 (音乐播放的内存空间的开辟等功能)  不写这行代码直接播放也会默认调用prepareToPlay
    [self.audioPlayer prepareToPlay];
}
// 播放
- (IBAction)playMusic{
    [self.audioPlayer play];
}
// 暂停
- (IBAction)pause{
    [self.audioPlayer pause];
}
// 停止
- (IBAction)stop{
    // 停止的效果和暂停是相同
    [self.audioPlayer stop];
}

@end