self.parentViewController.music=self.music[indexPath.row];

 YYMusicTool.h文件 // //  YYMusicTool.h // #import <Foundation/Foundation.h> @class YYMusicModel; @interface YYMusicTool : NSObject /**  *  返回所有的歌曲  */ + (NSArray *)musics; /**  *  返回正在播放的歌曲  */ + (YYMusicModel *)playingMusic; + (void)setPlayingMusic:(YYMusicModel *)playingMusic; /**  *  下一首歌曲  */ + (YYMusicModel *)nextMusic; /**  *  上一首歌曲  */ + (YYMusicModel *)previousMusic; @end

// //  YYMusicTool.m // #import "YYMusicTool.h" #import "YYMusicModel.h" #import "MJExtension.h" @implementation YYMusicTool static NSArray *_musics; static  YYMusicModel *_playingMusic; /**  *  @return 返回所有的歌曲  */ +(NSArray *)musics {     if (_musics==nil) {         _musics=[YYMusicModel objectArrayWithFilename:@"Musics.plist"];     }     return _musics; } +(void)setPlayingMusic:(YYMusicModel *)playingMusic {     /*      *如果没有传入需要播放的歌曲，或者是传入的歌曲名不在音乐库中，那么就直接返回       如果需要播放的歌曲就是当前正在播放的歌曲，那么直接返回      */     if (!playingMusic || ![[self musics]containsObject:playingMusic]) return;     if (_playingMusic == playingMusic) return;     _playingMusic=playingMusic; } /**  *  返回正在播放的歌曲  */ +(YYMusicModel *)playingMusic {     return _playingMusic; } /**  *  下一首歌曲  */ +(YYMusicModel *)nextMusic {     //设定一个初值     int nextIndex = 0;     if (_playingMusic) {         //获取当前播放音乐的索引         int playingIndex = [[self musics] indexOfObject:_playingMusic];         //设置下一首音乐的索引         nextIndex = playingIndex+1;         //检查数组越界，如果下一首音乐是最后一首，那么重置为0         if (nextIndex>=[self musics].count) {             nextIndex=0;         }     }     return [self musics][nextIndex]; } /**  *  上一首歌曲  */ +(YYMusicModel *)previousMusic {     //设定一个初值     int previousIndex = 0;     if (_playingMusic) {         //获取当前播放音乐的索引         int playingIndex = [[self musics] indexOfObject:_playingMusic];         //设置下一首音乐的索引         previousIndex = playingIndex-1;         //检查数组越界，如果下一首音乐是最后一首，那么重置为0         if (previousIndex<0) {             previousIndex=[self musics].count-1;         }     }     return [self musics][previousIndex]; } @end

// //  YYAudioTool.h // #import <Foundation/Foundation.h> #import <AVFoundation/AVFoundation.h> @interface YYAudioTool : NSObject /**  *播放音乐文件  */ +(BOOL)playMusic:(NSString *)filename; /**  *暂停播放  */ +(void)pauseMusic:(NSString *)filename; /**  *播放音乐文件  */ +(void)stopMusic:(NSString *)filename; /**  *播放音效文件  */ +(void)playSound:(NSString *)filename; /**  *销毁音效  */ +(void)disposeSound:(NSString *)filename; @end

// //  YYAudioTool.m // #import "YYAudioTool.h" @implementation YYAudioTool /**  *存放所有的音乐播放器  */ static NSMutableDictionary *_musicPlayers; +(NSMutableDictionary *)musicPlayers {     if (_musicPlayers==nil) {         _musicPlayers=[NSMutableDictionary dictionary];     }     return _musicPlayers; } /**  *存放所有的音效ID  */ static NSMutableDictionary *_soundIDs; +(NSMutableDictionary *)soundIDs {     if (_soundIDs==nil) {         _soundIDs=[NSMutableDictionary dictionary];     }     return _soundIDs; } /**  *播放音乐  */ +(BOOL)playMusic:(NSString *)filename {     if (!filename) return NO;//如果没有传入文件名，那么直接返回     //1.取出对应的播放器     AVAudioPlayer *player=[self musicPlayers][filename];         //2.如果播放器没有创建，那么就进行初始化     if (!player) {         //2.1音频文件的URL         NSURL *url=[[NSBundle mainBundle]URLForResource:filename withExtension:nil];         if (!url) return NO;//如果url为空，那么直接返回                 //2.2创建播放器         player=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:nil];                 //2.3缓冲         if (![player prepareToPlay]) return NO;//如果缓冲失败，那么就直接返回                 //2.4存入字典         [self musicPlayers][filename]=player;     }         //3.播放     if (![player isPlaying]) {         //如果当前没处于播放状态，那么就播放         return [player play];     }     return YES;//正在播放，那么就返回YES } +(void)pauseMusic:(NSString *)filename {     if (!filename) return;//如果没有传入文件名，那么就直接返回         //1.取出对应的播放器     AVAudioPlayer *player=[self musicPlayers][filename];         //2.暂停     [player pause];//如果palyer为空，那相当于[nil pause]，因此这里可以不用做处理 } +(void)stopMusic:(NSString *)filename {     if (!filename) return;//如果没有传入文件名，那么就直接返回         //1.取出对应的播放器     AVAudioPlayer *player=[self musicPlayers][filename];         //2.停止     [player stop];         //3.将播放器从字典中移除     [[self musicPlayers] removeObjectForKey:filename]; } //播放音效 +(void)playSound:(NSString *)filename {     if (!filename) return;     //1.取出对应的音效     SystemSoundID soundID=[[self soundIDs][filename] unsignedIntegerValue];         //2.播放音效     //2.1如果音效ID不存在，那么就创建     if (!soundID) {                 //音效文件的URL         NSURL *url=[[NSBundle mainBundle]URLForResource:filename withExtension:nil];         if (!url) return;//如果URL不存在，那么就直接返回                 OSStatus status = AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &soundID);         NSLog(@"%ld",status);         //存入到字典中         [self soundIDs][filename]=@(soundID);     }         //2.2有音效ID后，播放音效     AudioServicesPlaySystemSound(soundID); } //销毁音效 +(void)disposeSound:(NSString *)filename {     //如果传入的文件名为空，那么就直接返回     if (!filename) return;         //1.取出对应的音效     SystemSoundID soundID=[[self soundIDs][filename] unsignedIntegerValue];         //2.销毁     if (soundID) {         AudioServicesDisposeSystemSoundID(soundID);                 //2.1销毁后，从字典中移除         [[self soundIDs]removeObjectForKey:filename];     } } @end

// //  YYPlayingViewController.m // #import "YYPlayingViewController.h" #import "YYMusicTool.h" #import "YYMusicModel.h" #import "YYAudioTool.h" @interface YYPlayingViewController () @property (weak, nonatomic) IBOutlet UIImageView *iconView; @property (weak, nonatomic) IBOutlet UILabel *songLabel; @property (weak, nonatomic) IBOutlet UILabel *singerLabel; @property (weak, nonatomic) IBOutlet UILabel *durationLabel; @property(nonatomic,strong)YYMusicModel *playingMusic; - (IBAction)exit; @end

@implementation YYPlayingViewController #pragma mark-公共方法 -(void)show {     //1.禁用整个app的点击事件     UIWindow *window=[UIApplication sharedApplication].keyWindow;     window.userInteractionEnabled=NO;         //2.添加播放界面     //设置View的大小为覆盖整个窗口     self.view.frame=window.bounds;     //设置view显示     self.view.hidden=NO;     //把View添加到窗口上     [window addSubview:self.view];         //3.检测是否换了歌曲     if (self.playingMusic!=[YYMusicTool playingMusic]) {         [self RresetPlayingMusic];     }         //4.使用动画让View显示     self.view.y=self.view.height;     [UIView animateWithDuration:0.25 animations:^{         self.view.y=0;     } completion:^(BOOL finished) {                 //设置音乐数据         [self starPlayingMusic];         window.userInteractionEnabled=YES;     }]; } #pragma mark-私有方法 //重置正在播放的音乐 -(void)RresetPlayingMusic {     //1.重置界面数据     self.iconView.image=[UIImage imageNamed:@"play_cover_pic_bg"];     self.songLabel.text=nil;     self.singerLabel.text=nil;         //2.停止播放     [YYAudioTool stopMusic:self.playingMusic.filename]; } //开始播放音乐数据 -(void)starPlayingMusic {     //1.设置界面数据         //取出当前正在播放的音乐 //    YYMusicModel *playingMusic=[YYMusicTool playingMusic];         //如果当前播放的音乐就是传入的音乐，那么就直接返回     if (self.playingMusic==[YYMusicTool playingMusic]) return;     //存取音乐     self.playingMusic=[YYMusicTool playingMusic];     self.iconView.image=[UIImage imageNamed:self.playingMusic.icon];     self.songLabel.text=self.playingMusic.name;     self.singerLabel.text=self.playingMusic.singer;         //2.开始播放     [YYAudioTool playMusic:self.playingMusic.filename];     } #pragma mark-内部的按钮监听方法 //返回按钮 - (IBAction)exit {     //1.禁用整个app的点击事件     UIWindow *window=[UIApplication sharedApplication].keyWindow;     window.userInteractionEnabled=NO;         //2.动画隐藏View     [UIView animateWithDuration:0.25 animations:^{         self.view.y=window.height;     } completion:^(BOOL finished) {         window.userInteractionEnabled=YES;         //设置view隐藏能够节省一些性能         self.view.hidden=YES;     }]; } @end

// //  YYMusicsViewController.m // #import "YYMusicsViewController.h" #import "YYMusicModel.h" #import "MJExtension.h" #import "YYMusicCell.h" #import "YYPlayingViewController.h" #import "YYMusicTool.h" @interface YYMusicsViewController () @property(nonatomic,strong)YYPlayingViewController *playingViewController; @end

@implementation YYMusicsViewController #pragma mark-懒加载 -(YYPlayingViewController *)playingViewController {     if (_playingViewController==nil) {         _playingViewController=[[YYPlayingViewController alloc]init];     }     return _playingViewController; } - (void)viewDidLoad {     [super viewDidLoad]; } #pragma mark - Table view data source /**  *一共多少组  */ -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {     return 1; } /**  *每组多少行  */ -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {     return [YYMusicTool musics].count; } /**  *每组每行的cell  */ -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {     YYMusicCell *cell=[YYMusicCell cellWithTableView:tableView];     cell.music=[YYMusicTool musics][indexPath.row];     return cell; } /**  *  设置每个cell的高度  */ -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {     return 70; } /**  *  cell的点击事件  */ -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {     //1.取消选中被点击的这行     [tableView deselectRowAtIndexPath:indexPath animated:YES];         //2.设置正在播放的歌曲     [YYMusicTool setPlayingMusic:[YYMusicTool musics][indexPath.row]];     //调用公共方法     [self.playingViewController show];     //    //执行segue跳转 //    [self performSegueWithIdentifier:@"music2playing" sender:nil]; } @end

// //  YYPlayingViewController.m //  20-音频处理（音乐播放器1） // //  Created by apple on 14-8-13. //  Copyright (c) 2014年 yangyong. All rights reserved. // #import "YYPlayingViewController.h" #import "YYMusicTool.h" #import "YYMusicModel.h" #import "YYAudioTool.h" @interface YYPlayingViewController () //进度条 @property (weak, nonatomic) IBOutlet UIView *progressView; //滑块 @property (weak, nonatomic) IBOutlet UIButton *slider; @property (weak, nonatomic) IBOutlet UIImageView *iconView; @property (weak, nonatomic) IBOutlet UILabel *songLabel; @property (weak, nonatomic) IBOutlet UILabel *singerLabel; //当前播放的音乐的时长 @property (weak, nonatomic) IBOutlet UILabel *durationLabel; //正在播放的音乐 @property(nonatomic,strong)YYMusicModel *playingMusic; //音乐播放器对象 @property(nonatomic,strong)AVAudioPlayer *player; //定时器 @property(nonatomic,strong)NSTimer *CurrentTimeTimer; - (IBAction)exit; - (IBAction)tapProgressBg:(UITapGestureRecognizer *)sender; - (IBAction)panSlider:(UIPanGestureRecognizer *)sender; @end

@implementation YYPlayingViewController #pragma mark-公共方法 -(void)show {     //1.禁用整个app的点击事件     UIWindow *window=[UIApplication sharedApplication].keyWindow;     window.userInteractionEnabled=NO;         //2.添加播放界面     //设置View的大小为覆盖整个窗口     self.view.frame=window.bounds;     //设置view显示     self.view.hidden=NO;     //把View添加到窗口上     [window addSubview:self.view];         //3.检测是否换了歌曲     if (self.playingMusic!=[YYMusicTool playingMusic]) {         [self RresetPlayingMusic];     }         //4.使用动画让View显示     self.view.y=self.view.height;     [UIView animateWithDuration:0.25 animations:^{         self.view.y=0;     } completion:^(BOOL finished) {                 //设置音乐数据         [self starPlayingMusic];         window.userInteractionEnabled=YES;     }]; } #pragma mark-私有方法 //重置正在播放的音乐 -(void)RresetPlayingMusic {     //1.重置界面数据     self.iconView.image=[UIImage imageNamed:@"play_cover_pic_bg"];     self.songLabel.text=nil;     self.singerLabel.text=nil;         //2.停止播放     [YYAudioTool stopMusic:self.playingMusic.filename];     //把播放器进行清空     self.player=nil;         //3.停止定时器     [self removeCurrentTime]; } //开始播放音乐数据 -(void)starPlayingMusic {     //1.设置界面数据         //如果当前播放的音乐就是传入的音乐，那么就直接返回     if (self.playingMusic==[YYMusicTool playingMusic])     {         //把定时器加进去         [self addCurrentTimeTimer];         return;     }     //存取音乐     self.playingMusic=[YYMusicTool playingMusic];     self.iconView.image=[UIImage imageNamed:self.playingMusic.icon];     self.songLabel.text=self.playingMusic.name;     self.singerLabel.text=self.playingMusic.singer;         //2.开始播放     self.player = [YYAudioTool playMusic:self.playingMusic.filename];         //3.设置时长     //self.player.duration;  播放器正在播放的音乐文件的时间长度     self.durationLabel.text=[self strWithTime:self.player.duration];         //4.添加定时器     [self addCurrentTimeTimer];     } /**  *把时间长度-->时间字符串  */ -(NSString *)strWithTime:(NSTimeInterval)time {     int minute=time / 60;     int second=(int)time % 60;     return [NSString stringWithFormat:@"%d:%d",minute,second]; } #pragma mark-定时器控制 /**  *  添加一个定时器  */ -(void)addCurrentTimeTimer {     //提前先调用一次进度更新，以保证定时器的工作时及时的     [self updateCurrentTime];         //创建一个定时器，每一秒钟调用一次     self.CurrentTimeTimer=[NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateCurrentTime) userInfo:nil repeats:YES];     //把定时器加入到运行时中     [[NSRunLoop mainRunLoop]addTimer:self.CurrentTimeTimer forMode:NSRunLoopCommonModes]; } /**  *移除一个定时器  */ -(void)removeCurrentTime {     [self.CurrentTimeTimer invalidate];         //把定时器清空     self.CurrentTimeTimer=nil; } /**  *  更新播放进度  */ -(void)updateCurrentTime {     //1.计算进度值     double progress=self.player.currentTime/self.player.duration;         //2.计算滑块的x值     // 滑块的最大的x值     CGFloat sliderMaxX=self.view.width-self.slider.width;     self.slider.x=sliderMaxX*progress;     //设置滑块上的当前播放时间     [self.slider setTitle:[self strWithTime:self.player.currentTime] forState:UIControlStateNormal];         //3.设置进度条的宽度     self.progressView.width=self.slider.center.x;     } #pragma mark-内部的按钮监听方法 //返回按钮 - (IBAction)exit {         //0.移除定时器     [self  removeCurrentTime];     //1.禁用整个app的点击事件     UIWindow *window=[UIApplication sharedApplication].keyWindow;     window.userInteractionEnabled=NO;         //2.动画隐藏View     [UIView animateWithDuration:0.25 animations:^{         self.view.y=window.height;     } completion:^(BOOL finished) {         window.userInteractionEnabled=YES;         //设置view隐藏能够节省一些性能         self.view.hidden=YES;     }]; } /**  *点击了进度条  */ - (IBAction)tapProgressBg:(UITapGestureRecognizer *)sender {     //获取当前单击的点     CGPoint point=[sender locationInView:sender.view];     //切换歌曲的当前播放时间     self.player.currentTime=(point.x/sender.view.width)*self.player.duration;     //更新播放进度     [self updateCurrentTime]; } - (IBAction)panSlider:(UIPanGestureRecognizer *)sender {         //1.获得挪动的距离     CGPoint t=[sender translationInView:sender.view];     //把挪动清零     [sender setTranslation:CGPointZero inView:sender.view];         //2.控制滑块和进度条的frame     self.slider.x+=t.x;     //设置进度条的宽度     self.progressView.width=self.slider.center.x;         //3.设置时间值     CGFloat sliderMaxX=self.view.width-self.slider.width;     double progress=self.slider.x/sliderMaxX;     //当前的时间值=音乐的时长*当前的进度值     NSTimeInterval time=self.player.duration*progress;     [self .slider setTitle:[self strWithTime:time] forState:UIControlStateNormal];         //4.如果开始拖动，那么就停止定时器     if (sender.state==UIGestureRecognizerStateBegan) {         //停止定时器         [self removeCurrentTime];     }else if(sender.state==UIGestureRecognizerStateEnded)     {         //设置播放器播放的时间         self.player.currentTime=time;         //开启定时器         [self addCurrentTimeTimer];     } } @end

/**  *播放音乐  */ +(AVAudioPlayer *)playMusic:(NSString *)filename {     if (!filename) return nil;//如果没有传入文件名，那么直接返回     //1.取出对应的播放器     AVAudioPlayer *player=[self musicPlayers][filename];         //2.如果播放器没有创建，那么就进行初始化     if (!player) {         //2.1音频文件的URL         NSURL *url=[[NSBundle mainBundle]URLForResource:filename withExtension:nil];         if (!url) return nil;//如果url为空，那么直接返回                 //2.2创建播放器         player=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:nil];                 //2.3缓冲         if (![player prepareToPlay]) return nil;//如果缓冲失败，那么就直接返回                 //2.4存入字典         [self musicPlayers][filename]=player;     }         //3.播放     if (![player isPlaying]) {         //如果当前没处于播放状态，那么就播放          [player play];     }     return player;//正在播放，那么就返回YES }

/**  *把时间长度-->时间字符串  */ -(NSString *)strWithTime:(NSTimeInterval)time {     int minute=time / 60;     int second=(int)time % 60;     return [NSString stringWithFormat:@"%d:%d",minute,second]; }

/**  *移除一个定时器  */ -(void)removeCurrentTime {     [self.CurrentTimeTimer invalidate];         //把定时器清空     self.CurrentTimeTimer=nil; }

/**  *点击了进度条  */ - (IBAction)tapProgressBg:(UITapGestureRecognizer *)sender {     //获取当前单击的点     CGPoint point=[sender locationInView:sender.view];     //切换歌曲的当前播放时间     self.player.currentTime=(point.x/sender.view.width)*self.player.duration;     //更新播放进度     [self updateCurrentTime]; }

/**  *拖动滑块  */ - (IBAction)panSlider:(UIPanGestureRecognizer *)sender {         //1.获得挪动的距离     CGPoint t=[sender translationInView:sender.view];     //把挪动清零     [sender setTranslation:CGPointZero inView:sender.view];         //2.控制滑块和进度条的frame     self.slider.x+=t.x;     //设置进度条的宽度     self.progressView.width=self.slider.center.x;         //3.设置时间值     CGFloat sliderMaxX=self.view.width-self.slider.width;     double progress=self.slider.x/sliderMaxX;     //当前的时间值=音乐的时长*当前的进度值     NSTimeInterval time=self.player.duration*progress;     [self .slider setTitle:[self strWithTime:time] forState:UIControlStateNormal];         //4.如果开始拖动，那么就停止定时器     if (sender.state==UIGestureRecognizerStateBegan) {         //停止定时器         [self removeCurrentTime];     }else if(sender.state==UIGestureRecognizerStateEnded)     {         //设置播放器播放的时间         self.player.currentTime=time;         //开启定时器         [self addCurrentTimeTimer];     } }