AVAudioPlayer播放音乐

1:首先创建一个新的项目，继承自UIViewController

2:导入框架AVFoundation.framework

右键工程名，在Build Phases的Link Binary With Libraries中的＋号，找到AVFoundation.framework添加即可

3，导入音乐

4:添加代理AVAudioPlayerDelegate

5代码如下

//

//  ViewController.m

//  PlayMusic

//

//  Created by summer on 16/4/4.

//  Copyright © 2016年 summer. All rights reserved.

//

#import "ViewController.h"

#import <AVFoundation/AVFoundation.h>

@interface ViewController ()<AVAudioPlayerDelegate>

@property(nonatomic,strong)AVAudioPlayer *player;

@property(nonatomic,strong)NSTimer *timer;

@property(nonatomic,strong) UISlider *slider;

@property(nonatomic,strong)UIProgressView *progress;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

//添加音乐

NSURL *url=[[NSBundle mainBundle]URLForResource:@"Need You Now.wav" withExtension:Nil];

NSLog(@"%@",url);

self.player=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:Nil];

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil ];

//设置音量大小

self.player.volume=5;

//设置循环次数－1是无限循环，1就是1次

self.player.numberOfLoops=1;

//设置代理

self.player.delegate=self;

//准备播放

[self.player prepareToPlay];

//添加3个button，和响应事件

UIButton *btnPlay=[[UIButton alloc]initWithFrame:CGRectMake(100, 100, 120, 50)];

btnPlay.backgroundColor=[UIColor cyanColor];

[btnPlay.layer setMasksToBounds:YES];

[btnPlay.layer  setCornerRadius:5];

[btnPlay setTitle:@"点击播放音乐" forState:UIControlStateNormal];

[btnPlay addTarget:self action:@selector(PlayMusic) forControlEvents:UIControlEventTouchUpInside];

UIButton *btnSuspend=[[UIButton alloc]initWithFrame:CGRectMake(100, 200, 120, 50)];

btnSuspend.backgroundColor=[UIColor cyanColor];

[btnSuspend.layer setMasksToBounds:YES];

[btnSuspend.layer  setCornerRadius:5];

[btnSuspend setTitle:@"点击暂停音乐" forState:UIControlStateNormal];

[btnSuspend addTarget:self action:@selector(SuspendMusic) forControlEvents:UIControlEventTouchUpInside];

UIButton *btnStop=[[UIButton alloc]initWithFrame:CGRectMake(100, 300, 120, 50)];

btnStop.backgroundColor=[UIColor cyanColor];

[btnStop.layer setMasksToBounds:YES];

[btnStop.layer setCornerRadius:5];

[btnStop setTitle:@"点击停止音乐" forState:UIControlStateNormal];

[btnStop addTarget:self action:@selector(StopMusic) forControlEvents:UIControlEventTouchUpInside];

//设置一个switch，添加事件

UISwitch *swi=[[UISwitch alloc]initWithFrame:CGRectMake(100, 380, 100, 40)];

swi.on=YES;

[swi addTarget:self action:@selector(switchChange:) forControlEvents:UIControlEventValueChanged];

//设置一个进度条，用 NStimer来更新进度条

self.progress=[[UIProgressView alloc]initWithFrame:CGRectMake(100, 430, 200, 30)];

self.timer=[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(playProgress) userInfo:nil repeats:YES];

//设置一个音量空的slider，并添加响应事件

self.slider=[[UISlider alloc]initWithFrame:CGRectMake(100, 480, 200, 20)];

[self.slider  addTarget:self action:@selector(volumeChange) forControlEvents:UIControlEventValueChanged];

//设置声音的最小值

self.slider.minimumValue=0.0f;

//设置声音的最大值

self.slider.maximumValue=10.0f;

//设置声音的当前值

self.slider.value=5.0f;

//加入视图中显示

[self.view addSubview:self.slider];

[self.view addSubview:self.progress];

[self.view addSubview:swi];

[self.view addSubview:btnPlay];

[self.view addSubview:btnSuspend];

[self.view addSubview:btnStop];

//AudioServicesPlaySystemSound(sound);

// Do any additional setup after loading the view, typically from a nib.

}

-(void) PlayMusic{

//开始播放

[self.player play];

}

-(void)SuspendMusic{

//暂停音乐

[self.player pause];

}

-(void)StopMusic{

//停止播放，音乐播放时间置为0

self.player.currentTime=0;

[self.player stop];

}

-(void)playProgress{

//进度条的时间是当前时间／音乐的总时间

self.progress.progress=self.player.currentTime/self.player.duration;

}

-(void)switchChange:(UISwitch *)sender{

self.player.volume=sender.on;

}

-(void)volumeChange{

self.player.volume=self.slider.value;

}

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{

//音乐播放完时调用的事件，都清空

[self.timer invalidate];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end