#import "AppDelegate.h" #import "FirstVC.h" @implementation AppDelegate - (void)dealloc {     [_window release];     [super dealloc]; } - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {     self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];     // Override point for customization after application launch.         FirstVC *firstVC = [[FirstVC alloc] init];     self.window.rootViewController = firstVC;     [firstVC release];         self.window.backgroundColor = [UIColor whiteColor];     [self.window makeKeyAndVisible];     return YES; }

#import <UIKit/UIKit.h> //要想使用封装好的音频类,导入框,导入类头文件,缺一不可; #import <AVFoundation/AVFoundation.h> @interface FirstVC : UIViewController<AVAudioPlayerDelegate> {     AVAudioPlayer *avAudioPlayer;   //播放器player     UIProgressView *progressV;      //播放进度     UISlider *volumeSlider;         //声音控制     NSTimer *timer;                 //监控音频播放进度 } @end

- (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view.     //初始化三个button     UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];     [button setFrame:CGRectMake(100, 100, 60, 40)];     [button setTitle:@"Play" forState:UIControlStateNormal];     [button addTarget:self action:@selector(play) forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:button];         UIButton *button1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];     [button1 setFrame:CGRectMake(100, 150, 60, 40)];     [button1 setTitle:@"pause" forState:UIControlStateNormal];     [button1 addTarget:self action:@selector(pause) forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:button1];         UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];     [button2 setFrame:CGRectMake(100, 200, 60, 40)];     [button2 setTitle:@"stop" forState:UIControlStateNormal];     [button2 addTarget:self action:@selector(stop) forControlEvents:UIControlEventTouchUpInside];     [self.view addSubview:button2];         //从budle路径下读取音频文件　　轻音乐 - 萨克斯回家 这个文件名是你的歌曲名字,mp3是你的音频格式     NSString *string = [[NSBundle mainBundle] pathForResource:@"轻音乐 - 萨克斯回家" ofType:@"mp3"];     //把音频文件转换成url格式     NSURL *url = [NSURL fileURLWithPath:string];     //初始化音频类 并且添加播放文件     avAudioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];     //设置代理     avAudioPlayer.delegate = self;         //设置初始音量大小    // avAudioPlayer.volume = 1;         //设置音乐播放次数  -1为一直循环     avAudioPlayer.numberOfLoops = -1;         //预播放     [avAudioPlayer prepareToPlay];         //初始化一个播放进度条     progressV = [[UIProgressView alloc] initWithFrame:CGRectMake(20, 50, 200, 20)];     [self.view addSubview:progressV];     [progressV release];         //用NSTimer来监控音频播放进度     timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self                                                      selector:@selector(playProgress)                                                      userInfo:nil repeats:YES];     //初始化音量控制     volumeSlider = [[UISlider alloc] initWithFrame:CGRectMake(20, 70, 200, 20)];     [volumeSlider addTarget:self action:@selector(volumeChange)                        forControlEvents:UIControlEventValueChanged];     //设置最小音量     volumeSlider.minimumValue = 0.0f;     //设置最大音量     volumeSlider.maximumValue = 10.0f;     //初始化音量为多少     volumeSlider.value = 5.0f;         [self.view addSubview:volumeSlider];     [volumeSlider release];     //声音开关控件(静音)     UISwitch *swith = [[UISwitch alloc] initWithFrame:CGRectMake(100, 20, 60, 40)];     [swith addTarget:self action:@selector(onOrOff:) forControlEvents:UIControlEventValueChanged];     //默认状态为打开     swith.on = YES;     [self.view addSubview:swith];     [swith  release]; }

//播放 - (void)play {      [avAudioPlayer play]; }     //暂停 - (void)pause {     [avAudioPlayer pause]; }     //停止 - (void)stop {     avAudioPlayer.currentTime = 0;  //当前播放时间设置为0     [avAudioPlayer stop]; } //播放进度条 - (void)playProgress {     //通过音频播放时长的百分比,给progressview进行赋值;     progressV.progress = avAudioPlayer.currentTime/avAudioPlayer.duration; } //声音开关(是否静音) - (void)onOrOff:(UISwitch *)sender {     avAudioPlayer.volume = sender.on; } //播放音量控制 - (void)volumeChange {    avAudioPlayer.volume = volumeSlider.value; } //播放完成时调用的方法  (代理里的方法),需要设置代理才可以调用 - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag {     [timer invalidate]; //NSTimer暂停   invalidate  使...无效; }

- (void)dealloc {     [avAudioPlayer release];     [progressV release];     [volumeSlider release];     [timer release];     [super dealloc]; }

NSString *urlStr = @"http://…………xxx.mp3";  NSURL *url = [[NSURL alloc]initWithString:urlStr];  NSData * audioData = [NSData dataWithContentsOfURL:url];    //将数据保存到本地指定位置           NSString *docDirPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];  NSString *filePath = [NSString stringWithFormat:@"%@/%@.mp3", docDirPath , @"temp"];  [audioData writeToFile:filePath atomically:YES];          //播放本地音乐            NSURL *fileURL = [NSURL fileURLWithPath:filePath];  player = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];  [player play];

[[AVAudioSession sharedInstance]setCategory:AVAudioSessionCategoryPlaybackerror:nil];