#import <AVFoundation/AVFoundation.h>头文件
注意:要在真机上调试
下面是ipad上的调试效果
下面是代码,代码中都有注释:
// // RootViewController.h // SoundDemo // // Created by on 13-6-21. // Copyright (c) 2013年 DoubleMan. All rights reserved. // #import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> #import <MediaPlayer/MediaPlayer.h> @interface RootViewController : UIViewController <AVAudioPlayerDelegate> { AVAudioPlayer *player; } @property (nonatomic, retain) AVAudioPlayer *player; @property (nonatomic, retain) UISlider *slider; @property (nonatomic, retain) NSTimer *timer; @end
// // RootViewController.m // SoundDemo // // Created by on 13-6-21. // Copyright (c) 2013年 DoubleMan. All rights reserved. // #import "RootViewController.h" @interface RootViewController () @end @implementation RootViewController @synthesize player; @synthesize slider; @synthesize timer; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; UIButton *musicPlay = [UIButton buttonWithType:UIButtonTypeRoundedRect]; musicPlay.frame = CGRectMake(10, 10, 90, 35); [musicPlay setTitle:@"Play" forState:UIControlStateNormal]; [musicPlay addTarget:self action:@selector(playMusic) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:musicPlay]; UIButton *pause = [UIButton buttonWithType:UIButtonTypeRoundedRect]; pause.frame = CGRectMake(115, 10, 90, 35); [pause setTitle:@"Pause" forState:UIControlStateNormal]; [pause addTarget:self action:@selector(pause) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:pause]; UIButton *stop = [UIButton buttonWithType:UIButtonTypeRoundedRect]; stop.frame = CGRectMake(220, 10, 90, 35); [stop setTitle:@"stop" forState:UIControlStateNormal]; [stop addTarget:self action:@selector(stop) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:stop]; slider = [[UISlider alloc] initWithFrame:CGRectMake(10, 65, 300, 20)]; [slider addTarget:self action:@selector(sliderValueChange:) forControlEvents:UIControlEventValueChanged]; [self.view addSubview:slider]; // NSString *path = [[NSBundle mainBundle] pathForResource:@"找一个相爱的理由-晨熙-艾歌" ofType:@"wav"]; NSURL *url = [NSURL fileURLWithPath:path]; player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil]; // 设置循环次数,-1为一直循环 player.numberOfLoops = -1; // 准备播放 [player prepareToPlay]; // 设置播放音量 player.volume = 50; // 当前播放位置,即从currentTime处开始播放,相关于android里面的seekTo方法 player.currentTime = 15; // 设置代理 player.delegate = self; int dur = player.duration; slider.maximumValue = dur; // 一秒一次更新播放进度 timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(updateSlider) userInfo:nil repeats:YES]; // 从ipod库中读出音乐文件 // MPMediaQuery *everything = [[MPMediaQuery alloc] init]; // // 读取条件 // MPMediaPropertyPredicate *albumNamePredicate = // [MPMediaPropertyPredicate predicateWithValue:[NSNumber numberWithInt:MPMediaTypeMusic ] forProperty: MPMediaItemPropertyMediaType]; // [everything addFilterPredicate:albumNamePredicate]; // // NSLog(@"Logging items from a generic query..."); // NSArray *itemsFromGenericQuery = [everything items]; // for (MPMediaItem *song in itemsFromGenericQuery) { // NSString *songTitle = [song valueForProperty: MPMediaItemPropertyTitle]; // NSLog (@"%@", songTitle); // } // // [everything release]; } // 更新播放进度 - (void)updateSlider { slider.value = player.currentTime; } // 进度滑块变化时,跳转到进度播放 - (void)sliderValueChange:(UISlider *)mSlider { player.currentTime = mSlider.value; NSLog(@"value: %.0f", mSlider.value); } // 停止 - (void)stop { player.currentTime = 0; [player stop]; } // 暂停 - (void)pause { [player pause]; NSLog(@"pause"); } // 开始播放 - (void)playMusic { NSLog(@"start play"); [player play]; } #pragma mark - AVAudioPlayerDelegate - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag { // 播放完成时调用 只有当播放结束时才会调用,循环播放时不会调 [timer invalidate]; NSLog(@"audioPlayerDidFinishPlaying"); } /* if an error occurs while decoding it will be reported to the delegate. */ - (void)audioPlayerDecodeErrorDidOccur:(AVAudioPlayer *)player error:(NSError *)error { // 解码出错时调用 } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)dealloc { [player stop]; [player release]; [slider release]; [timer release]; [super dealloc]; } @end