AVAudioPlayer进行音乐播放

导入

#import <AVFoundation/AVFoundation.h>

代理

@interface ViewController ()<AVAudioPlayerDelegate>

@property (nonatomic, strong) AVAudioPlayer *player; // 播放对象属性

切换按钮状态

self.playMusic.selected = !self.playMusic.selected;

开始播放

[self.player play];

暂停播放

[self.player pause];

获得已经播放的时间

NSTimeInterval currentTime = self.player.currentTime;

获得歌曲剩余时间

NSTimeInterval endTime = self.player.duration - currentTime;

音乐的长度

 self.player.duration;

获得音乐路径（URL）

    NSString *filePath = [[NSBundle mainBundle] pathForResource:musicName ofType:@"mp3"];

    NSURL *URL = [NSURL fileURLWithPath:filePath];

初始化播放对象

    self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:URL error:nil];

    self.player.delegate = self;

准备播放

    [self.player prepareToPlay];

完整代码

#import "ViewController.h"

#import <AVFoundation/AVFoundation.h>

@interface ViewController ()<AVAudioPlayerDelegate>

@property (nonatomic, strong) AVAudioPlayer *player; // 播放对象属性

@property (nonatomic, strong) NSArray *musicNameArray; // 名称数组

- (NSArray *)musicNameArray {

    if (!_musicNameArray) {

        _musicNameArray = @[@"被情所伤害过的人-伤感中文慢摇",@"Deemo Title Song - Website Version",@"Release My Soul",@"李克勤 - 月半小夜曲"];

    }

    return _musicNameArray;

}

     // 切换按钮状态

     self.playMusic.selected = !self.playMusic.selected;

        // 开始播放

        [self.player play];

        // 暂停播放

        [self.player pause];

     

 // 按钮状态

    if (![self.player isPlaying]) 

        self.playMusic.selected = NO;

     // 获得已经播放的时间

    NSTimeInterval currentTime = self.player.currentTime;

    // 计算分钟数

    NSInteger minute = currentTime / 60;

    // 计算秒数

    NSInteger second = (NSInteger)currentTime % 60;

    // 赋值

    self.playTimeLabel.text = [NSString stringWithFormat:@"%02ld:%02ld",minute,second];

    

    // 获得歌曲剩余时间

    NSTimeInterval endTime = self.player.duration - currentTime;

  

    // 音乐的长度

 self.player.duration;

    // 第一步：获得音乐路径（URL）

    NSString *filePath = [[NSBundle mainBundle] pathForResource:musicName ofType:@"mp3"];

    NSURL *URL = [NSURL fileURLWithPath:filePath];

    // 屏蔽地址异常

    if (!URL) {

        return;

    }

    // 初始化播放对象

    self.player = [[AVAudioPlayer alloc] initWithContentsOfURL:URL error:nil];

    self.player.delegate = self;

    // 准备播放

    [self.player prepareToPlay];