本次写的是一个简单的音乐播放器;
写播放器首先要下载一首歌, 和歌词, 然后解析你的歌词;把歌词部分和时间部分分别放到数组中.

解析的时候, 要注意有歌词格式的不同, 我下面解析的是一个常见歌词类型如图

屏幕快照

HandleDate.h文件

#import <Foundation/Foundation.h>
@interface HandleDate : NSObject
// 用来接收时间的可变数组
@property (nonatomic, retain) NSMutableArray *mArrOfTime;
// 用来接收歌词的可变数组
@property (nonatomic, retain) NSMutableArray *mArrOfLyric;

- (instancetype)init;
- (void)handleLyric;
@end

HandleDate.m文件

#import "HandleDate.h"
@implementation HandleDate
-(instancetype)init {
    self = [super init];
    if (self) {
        _mArrOfTime = [NSMutableArray array];
        _mArrOfLyric = [NSMutableArray array];
    }
    return self;
}

- (void)handleLyric {
// 获取歌词的路径
    NSString *path = [[NSBundle mainBundle] pathForResource:@"稻香" ofType:@"lrc"];
// 获取通过路径解析出来的结果
    NSString *result = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
//时间的格式一般是[00:00.00];的, 所以要以"["分割
    NSArray *arrayOfResult = [NSArray array];
    arrayOfResult = [result componentsSeparatedByString:@"["];
    NSArray *arrayOfLine = [NSArray array];
// 遍历分割后的数组
    for (NSString *stringOfline in arrayOfResult) {
        // 分割每一行的时间和歌词数组
        arrayOfLine = [stringOfline componentsSeparatedByString:@"] "];
        // 将时间加入时间数组
        [self.mArrOfTime addObject:[arrayOfLine firstObject]];
// 这个分情况, 看自己打印的歌词, 去掉不合适的对象
        [self.mArrOfTime removeObject:@""];
// 这个不知道为什么歌词的后面有\n这个符号, 去掉就行, 然后加入歌词数组
        if ([arrayOfLine lastObject] != 0) {
            NSString *str = [[[arrayOfLine lastObject] componentsSeparatedByString:@"\n"] firstObject];
            [self.mArrOfLyric addObject:str];
            [self.mArrOfLyric removeObject:@""];
        }
    }
}
@end

VC.m中(这个里面看重点, 和音乐播放的有关的)

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>
#import "HandleDate.h"
//#import "VCOfMV.h"
@interface ViewController ()
// 歌名
@property (nonnull, nonatomic, retain) UILabel *labelOfSongName;
// 下拉箭头
@property (nonatomic, retain) UIButton *buttonOfPull;
// 更多信息
@property (nonatomic, retain) UIButton *buttonOfMore;
// 歌星
@property (nonatomic, retain) UILabel *labelOfName;
// 小按钮
@property (nullable, nonatomic, retain) UIButton *buttonOfStandard;
@property (nullable, nonatomic, retain) UIButton *buttonOfSole;
@property (nullable, nonatomic, retain) UIButton *buttonOfMV;
@property (nullable, nonatomic, retain) UIButton *buttonOfOther;
// 歌名图片
@property (nullable, nonatomic, retain) UIImageView *imageViewOfSong;
// 图片上的button
@property (nonatomic, retain) UIButton *buttonOfWatchMV;
// 歌词
@property (nonatomic, retain) UILabel *labelOfLyric;
// 分页控制器
@property (nullable, nonatomic, retain) UIPageControl *pageControl;
// 进度条
@property (nonnull, nonatomic, retain) UISlider *slider;
// 时间
@property (nonatomic, retain) UILabel *labelOfMin;
@property (nonatomic, retain) UILabel *labelOfMax;
// 暂停, 上/下一首键
@property (nonnull, nonatomic, retain) UIButton *buttonOfLast;
@property (nonnull, nonatomic, retain) UIButton *buttonOfPause;
@property (nonnull, nonatomic, retain) UIButton *buttonOfNext;
// 横屏键
@property (nonatomic, retain) UIButton *buttonOfHorizontal;
// 最下面一栏
@property (nonatomic, retain) UIButton *buttonOfLike;
@property (nonatomic, retain) UIButton *buttonOfType;
@property (nonatomic, retain) UIButton *buttonOfLoad;
@property (nonatomic, retain) UIButton *buttonOfShare;
@property (nonatomic, retain) UIButton *buttonOfListen;
// 播放器
@property (nonatomic, retain) AVAudioPlayer *player;
@property (nonatomic, retain) NSTimer *firstTimer;
@property (nonatomic, retain) HandleDate *handleDate;
@end
@implementation ViewController
- (void)dealloc
{
    [_labelOfSongName release];
    [_buttonOfPull release];
    [_buttonOfMore release];
    [_labelOfName release];
    [_buttonOfStandard release];
    [_buttonOfSole release];
    [_buttonOfMV release];
    [_buttonOfOther release];
    [_imageViewOfSong release];
    [_buttonOfWatchMV release];
    [_labelOfLyric release];
    [_pageControl release];
    [_slider release];
    [_buttonOfLast release];
    [_buttonOfPause release];
    [_buttonOfNext release];
    [_buttonOfHorizontal release];
    [_buttonOfLike release];
    [_buttonOfShare release];
    [_buttonOfLoad release];
    [_buttonOfType release];
    [_buttonOfListen release];
    [_player release];
    [_firstTimer release];
    [_labelOfMin release];
    [_labelOfMax release];
    [_handleDate release];
    
    [super dealloc];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
     
    UIImageView *imageViewOfBackGround = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    imageViewOfBackGround.image = [UIImage imageNamed:@"player_albumblur_default"];
    [self.view addSubview:imageViewOfBackGround];
    [imageViewOfBackGround release];
    
    [self createSubViews];
    [self createPlayer];    
}


- (void)createSubViews {
    
    // 下拉箭头
    _buttonOfPull = [UIButton buttonWithType:UIButtonTypeCustom];
    _buttonOfPull.frame = CGRectMake(10, 30, 40, 40);
    [_buttonOfPull setImage:[UIImage imageNamed:@"miniplayer_btn_playlist_close-1"] forState:UIControlStateNormal];
    [self.view addSubview:_buttonOfPull];
    
    // 歌名
    _labelOfSongName = [[UILabel alloc] initWithFrame:CGRectMake(50, 30, self.view.frame.size.width - 100, 40)];
    [self.view addSubview:_labelOfSongName];
    [_labelOfSongName release];
    _labelOfSongName.text = @"稻香";
    _labelOfSongName.textColor = [UIColor whiteColor];
    _labelOfSongName.textAlignment = NSTextAlignmentCenter;
    _labelOfSongName.font = [UIFont systemFontOfSize:20.0f];
    
    // 更多设置
    _buttonOfMore = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.view addSubview:_buttonOfMore];
    _buttonOfMore.frame = CGRectMake(self.view.frame.size.width - 50, 30, 40, 40);
    [_buttonOfMore setImage:[UIImage imageNamed:@"main_tab_more"] forState:UIControlStateNormal];
    
    // 歌星
    _labelOfName = [[UILabel alloc] initWithFrame:CGRectMake(100, 70, self.view.frame.size.width - 200, 30)];
    [self.view addSubview:_labelOfName];
    [_labelOfName release];
    _labelOfName.textAlignment = NSTextAlignmentCenter;
    _labelOfName.textColor = [UIColor whiteColor];
    _labelOfName.text = @"——  周杰伦  ——";
    
    // 标签栏
    _buttonOfStandard = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.view addSubview:_buttonOfStandard];
    _buttonOfStandard.frame = CGRectMake(75, 110, 60, 30);
    _buttonOfStandard.backgroundColor = [UIColor redColor];
    [_buttonOfStandard setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfSole = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.view addSubview:_buttonOfSole];
    _buttonOfSole.frame = CGRectMake(145, 110, 60, 30);
    _buttonOfSole.backgroundColor = [UIColor redColor];
    [_buttonOfSole setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfMV = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.view addSubview:_buttonOfMV];
    _buttonOfMV.frame = CGRectMake(215, 110, 60, 30);
    _buttonOfMV.backgroundColor = [UIColor redColor];
    [_buttonOfMV setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfOther = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.view addSubview:_buttonOfOther];
    _buttonOfOther.frame = CGRectMake(285, 110, 60, 30);
    _buttonOfOther.backgroundColor = [UIColor redColor];
    [_buttonOfOther setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    // 中间圆图
    _imageViewOfSong = [[UIImageView alloc] initWithFrame:CGRectMake(70, 160, self.view.frame.size.width - 140, self.view.frame.size.width - 140)];
    [self.view addSubview:_imageViewOfSong];
    [_imageViewOfSong release];
    _imageViewOfSong.backgroundColor = [UIColor cyanColor];
    [_imageViewOfSong setImage:[UIImage imageNamed:@"song"]];
    _imageViewOfSong.layer.masksToBounds = YES;
    _imageViewOfSong.layer.cornerRadius = _imageViewOfSong.frame.size.width / 2;
    _imageViewOfSong.layer.borderWidth = 10;
    _imageViewOfSong.layer.borderColor = [UIColor colorWithRed:0.16 green:0.11 blue:0.05 alpha:0.8].CGColor;
    
    // 歌词栏
    _labelOfLyric = [[UILabel alloc] initWithFrame:CGRectMake(50, 435, self.view.frame.size.width - 100, 40)];
    [self.view addSubview:_labelOfLyric];
    [_labelOfLyric release];
    _labelOfLyric.text = @"曲: 周杰伦";
    _labelOfLyric.textColor = [UIColor whiteColor];
    _labelOfLyric.textAlignment = NSTextAlignmentCenter;
    
    // 观看MV按钮
    _buttonOfWatchMV = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfWatchMV];
    _buttonOfWatchMV.frame = CGRectMake(150, 380, self.view.frame.size.width - 300, 40);
    [_buttonOfWatchMV setTitle:@"观看MV" forState:UIControlStateNormal];
    [_buttonOfWatchMV setTintColor:[UIColor whiteColor]];
    [_buttonOfWatchMV addTarget:self action:@selector(watchMV:) forControlEvents:UIControlEventTouchUpInside];
    
    // 分段控制器
    _pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(100, 475, self.view.frame.size.width - 200, 20)];
    [self.view addSubview:_pageControl];
    [_pageControl release];
    _pageControl.numberOfPages = 3;
    _pageControl.currentPage = 1;
    
    // 进度条
    _slider = [[UISlider alloc] initWithFrame:CGRectMake(50, 520, self.view.frame.size.width - 100, 20)];
    [self.view addSubview:_slider];
    [_slider release];
    [_slider setMinimumTrackImage:[UIImage imageNamed:@"player_slider_playback_left"] forState:UIControlStateNormal];
    [_slider setMaximumTrackImage:[UIImage imageNamed:@"player_slider_playback_right"] forState:UIControlStateNormal];
    [_slider setThumbImage:[UIImage imageNamed:@"player_slider_playback_thumb"] forState:UIControlStateNormal];
    
    // 进度条两边的时间
    self.labelOfMin = [[UILabel alloc] initWithFrame:CGRectMake(0, 520, 50, 20)];
    [self.view addSubview:_labelOfMin];
    [_labelOfMin release];
    _labelOfMin.textColor = [UIColor whiteColor];
    _labelOfMin.textAlignment = NSTextAlignmentCenter;
    
    self.labelOfMax = [[UILabel alloc] initWithFrame:CGRectMake(self.view.frame.size.width - 50, 520, 50, 20)];
    [self.view addSubview:_labelOfMax];
    [_labelOfMax release];
    _labelOfMax.textColor = [UIColor whiteColor];
    _labelOfMax.textAlignment = NSTextAlignmentCenter;
    // 上一曲
    _buttonOfLast = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfLast];
    _buttonOfLast.frame = CGRectMake(70, 570, 50, 50);
    _buttonOfLast.backgroundColor = [UIColor grayColor];
    _buttonOfLast.layer.cornerRadius = 25;
    
    // 暂停/播放键
    _buttonOfPause = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfPause];
    _buttonOfPause.frame = CGRectMake(170, 560, self.view.frame.size.width - 340, self.view.frame.size.width - 340);
    _buttonOfPause.backgroundColor = [UIColor grayColor];
    _buttonOfPause.layer.cornerRadius = (self.view.frame.size.width - 340) / 2;
    [_buttonOfPause setTitle:@"播放" forState:UIControlStateNormal];
    [_buttonOfPause addTarget:self action:@selector(playSong:) forControlEvents:UIControlEventTouchUpInside];
    
    // 下一曲
    _buttonOfNext = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfNext];
    _buttonOfNext.frame = CGRectMake(self.view.frame.size.width - 120, 570, 50, 50);
    _buttonOfNext.backgroundColor = [UIColor grayColor];
    _buttonOfNext.layer.cornerRadius = 25;
    
    
    // 横屏键
    _buttonOfHorizontal = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfHorizontal];
    _buttonOfHorizontal.frame = CGRectMake(self.view.frame.size.width - 50, 580, 40, 30);
    _buttonOfHorizontal.backgroundColor = [UIColor grayColor];
    
    // 最小面的按钮
    _buttonOfLike = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfLike];
    _buttonOfLike.frame = CGRectMake(0, self.view.frame.size.height - 70, self.view.frame.size.width / 5, 70);
    _buttonOfLike.backgroundColor = [UIColor purpleColor];
    [_buttonOfLike setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfType = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfType];
    _buttonOfType.frame = CGRectMake(self.view.frame.size.width * 1 / 5, self.view.frame.size.height - 70, self.view.frame.size.width / 5, 70);
    _buttonOfType.backgroundColor = [UIColor cyanColor];
    [_buttonOfType setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfLoad = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfLoad];
    _buttonOfLoad.frame = CGRectMake(self.view.frame.size.width * 2 / 5, self.view.frame.size.height - 70, self.view.frame.size.width / 5, 70);
    _buttonOfLoad.backgroundColor = [UIColor greenColor];
    [_buttonOfLoad setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfShare = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfShare];
    _buttonOfShare.frame = CGRectMake(self.view.frame.size.width * 3 / 5, self.view.frame.size.height - 70, self.view.frame.size.width / 5, 70);
    _buttonOfShare.backgroundColor = [UIColor orangeColor];
    [_buttonOfShare setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];
    
    _buttonOfListen = [UIButton buttonWithType:UIButtonTypeSystem];
    [self.view addSubview:_buttonOfListen];
    _buttonOfListen.frame = CGRectMake(self.view.frame.size.width * 4 / 5, self.view.frame.size.height - 70, self.view.frame.size.width / 5, 70);
    _buttonOfListen.backgroundColor = [UIColor whiteColor];
    [_buttonOfListen setImage:[UIImage imageNamed:@""] forState:UIControlStateNormal];

}
#pragma mark ------------  观看MV  -----------
- (void)watchMV:(UIButton *)button {
    VCOfMV *vc = [[VCOfMV alloc] init];
    [self presentViewController:vc animated:YES completion:^{
        
    }];
    [self.player pause];
}
- (void)createPlayer {

    #pragma mark ------------  创建播放器  -----------
    NSString *path = [[NSBundle mainBundle] pathForResource:@"周杰伦 - 稻香" ofType:@"mp3"];
    NSURL *url = [NSURL fileURLWithPath:path];
    self.player = [[[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil] autorelease];
    /** slider的设置 */
    _slider.minimumValue = 0.0f;
    _slider.maximumValue = self.player.duration;
    [_slider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
    // 定时器 让slider随player播放移动
    self.firstTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(changeTime:) userInfo:nil repeats:YES];
 
    // 进度条两边的时间
    _labelOfMin.text = @"00:00";
    
    NSInteger allTime = self.player.duration;
    if (allTime / 60 < 10) {
        
    _labelOfMax.text = [NSString stringWithFormat:@"0%ld:%ld", allTime / 60, allTime % 60];
    } else if (allTime / 60 > 10) {
    
        _labelOfMax.text = [NSString stringWithFormat:@"%ld:%ld", allTime / 60, allTime % 60];
    }
}
// 暂停和播放
- (void)playSong:(UIButton *)button {
   
    [self.player play];
    [button removeTarget:self action:@selector(playSong:) forControlEvents:UIControlEventTouchUpInside];
    [button addTarget:self action:@selector(pauseSong:) forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:@"暂停" forState:UIControlStateNormal];
}

- (void)pauseSong:(UIButton *)button {
  
    [self.player pause];
    [button removeTarget:self action:@selector(pauseSong:) forControlEvents:UIControlEventTouchUpInside];
    [button addTarget:self action:@selector(playSong:) forControlEvents:UIControlEventTouchUpInside];
    [button setTitle:@"播放" forState:UIControlStateNormal];
}
// 进度条
- (void)sliderAction:(UISlider *)slider {
    self.player.currentTime = self.slider.value;
}
// 定时器
- (void)changeTime:(NSTimer *)timer {
    
    self.slider.value = self.player.currentTime;
    // 时间跟着走
    NSInteger currentTime = self.player.currentTime;
    if (currentTime / 60 < 10) {
        if (currentTime % 60 < 10) {
            
    _labelOfMin.text = [NSString stringWithFormat:@"0%ld:0%ld", currentTime / 60, currentTime % 60];
        } else if (currentTime % 60 > 10) {
         _labelOfMin.text = [NSString stringWithFormat:@"0%ld:%ld", currentTime / 60, currentTime % 60];
        }
    } else if (currentTime / 60 > 10) {
        if (currentTime % 60 < 10) {
            
            _labelOfMin.text = [NSString stringWithFormat:@"%ld:0%ld", currentTime / 60, currentTime % 60];
        } else if (currentTime % 60 > 10) {
            _labelOfMin.text = [NSString stringWithFormat:@"%ld:%ld", currentTime / 60, currentTime % 60];
        }
    }
    self.handleDate = [[[HandleDate alloc] init] autorelease];
    [self.handleDate handleLyric];
   
    for (int i = 0; i < self.handleDate.mArrOfTime.count; i++) {
         NSArray *arr = [self.handleDate.mArrOfTime[i] componentsSeparatedByString:@":"];
        int lyricTime = [[arr firstObject] intValue] * 60 + [[arr lastObject] intValue];
        int stardand = self.player.currentTime;
        if (lyricTime == stardand) {
            
            _labelOfLyric.text = _handleDate.mArrOfLyric[i];
        }   
    }   
}
#pragma mark ------------  改变状态栏的颜色  -----------
- (UIStatusBarStyle)preferredStatusBarStyle {
    return UIStatusBarStyleLightContent;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
@end