define kLrcTableView 10001 pragma mark - pragma mark dataSource pragma mark - pragma mark UITableView Delegate pragma mark - pragma mark AVAudioPlayer Delegate pragma mark - pragma mark 方法回调 pragma mark 得到歌词 pragma mark 动态显示歌词 pragma mark 动态更新歌词表歌词" /> define kLrcTableView 10001 pragma mark - pragma mark dataSource pragma mark - pragma mark UITableView Delegate pragma mark - pragma mark AVAudioPlayer Delegate pragma mark - pragma mark 方法回调 pragma mark 得到歌词 pragma mark 动态显示歌词 pragma mark 动态更新歌词表歌词 - 亿夏网" />
您的位置: 首页  >  IT文章  >  音乐播放器（主界面） import import import "MjMusicViewController.h" import "DXSemiViewControllerCategory.h" import define kLrcTableView 10001 pragma mark - pragma mark dataSource pragma mark - pragma mark UITableView Delegate pragma mark - pragma mark AVAudioPlayer Delegate pragma mark - pragma mark 方法回调 pragma mark 得到歌词 pragma mark 动态显示歌词 pragma mark 动态更新歌词表歌词

音乐播放器（主界面） import import import "MjMusicViewController.h" import "DXSemiViewControllerCategory.h" import define kLrcTableView 10001 pragma mark - pragma mark dataSource pragma mark - pragma mark UITableView Delegate pragma mark - pragma mark AVAudioPlayer Delegate pragma mark - pragma mark 方法回调 pragma mark 得到歌词 pragma mark 动态显示歌词 pragma mark 动态更新歌词表歌词

分类: IT文章 • 2022-07-18 18:41:43

import <AVFoundation/AVFoundation.h>

@interface MjMusicViewController : UIViewController<UITableViewDataSource,UITableViewDelegate,AVAudioPlayerDelegate>
{
NSInteger controlPlayStyle;
NSInteger controlPlay;
NSMutableArray *timeArray;
NSMutableDictionary *LRCDictionary;
NSUInteger lrcLineNumber;
}

@end

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import <AVFoundation/AVFoundation.h>

define kLrcTableView 10001

//#define kPlaySequent 1;
//#define kPlayRandom 2;
//#define kPlayCircle 3;

static NSString *songIdentify = @"songIdentify";
@interface MjMusicViewController ()

@property (retain, nonatomic) IBOutlet UIView *controlView;
@property (retain, nonatomic) IBOutlet UIImageView *imageView;
@property (nonatomic,retain)AVAudioPlayer *audioPlayer;
@property (retain, nonatomic) IBOutlet UIButton *songBtn;
@property (retain, nonatomic) IBOutlet UIButton *playStyleBtn;
@property (retain, nonatomic) IBOutlet UISlider *sliderProgress;
@property (retain, nonatomic) IBOutlet UIButton *controlBtn;
@property (retain, nonatomic) IBOutlet UIButton *priorSongBtn;
@property (retain, nonatomic) IBOutlet UIButton *nextSongBtn;
@property (retain, nonatomic) IBOutlet UILabel *labelAllTime;
@property (retain, nonatomic) IBOutlet UILabel *labelProgressTime;
@property (retain, nonatomic) IBOutlet UISlider *sliderVolume;
@property (retain, nonatomic) IBOutlet UILabel *songNameLabel;
@property (retain, nonatomic) IBOutlet UITableView *lrcTableView;

@property (nonatomic,retain)NSArray *songsDataSource;
@property (nonatomic,assign)NSInteger musicNum;
@property (nonatomic,retain)NSString *currentSong;
@property (nonatomic ,retain)UITableView *songTableView;
@property (nonatomic,retain)NSURL *soundURL;

@end

@implementation MjMusicViewController

  • (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
    {
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
    // Custom initialization
    self.songsDataSource = @[@"光辉岁月",@"Never Give Up",@"怒放的生命",@"你给我听好",@"You Belong With Me",@"Stay Beautiful",@"我只在乎你",@"泡沫"];

    }
    return self;
    }

  • (void)viewDidLoad
    {
    [super viewDidLoad];
    controlPlayStyle = 2;
    controlPlay = 1;
    self.controlView.alpha = 0.6f;
    self.controlView.backgroundColor = [UIColor lightGrayColor];
    self.view.backgroundColor = [UIColor lightGrayColor];
    self.navigationController.navigationBarHidden = YES;

    self.imageView.animationImages = @[[UIImage imageNamed:@"scene1.jpg"],
    [UIImage imageNamed:@"scene2.jpg"],
    [UIImage imageNamed:@"scene3.jpg"],
    [UIImage imageNamed:@"scene4.jpg"],
    [UIImage imageNamed:@"scene5.jpg"],
    ];

    self.imageView.animationDuration = 20.0;
    [self.imageView stopAnimating];
    [self.view addSubview:self.imageView];
    [self.imageView addSubview:self.songNameLabel];
    [self.imageView addSubview:self.labelProgressTime];
    [self.imageView addSubview:self.labelAllTime];
    [self.imageView addSubview:self.sliderProgress];
    [self.imageView addSubview:self.controlView];
    [self.imageView addSubview:self.lrcTableView];

// 为了显示歌词

self.lrcTableView.tag = 10001;
self.lrcTableView.backgroundColor = [UIColor clearColor];
self.lrcTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
self.lrcTableView.dataSource = self;
self.lrcTableView.delegate =self;
lrcLineNumber = 0;

timeArray = [[NSMutableArray alloc] initWithCapacity:10];
LRCDictionary = [[NSMutableDictionary alloc] initWithCapacity:10];

// 初始化歌词
[self initLRC];

[NSTimer scheduledTimerWithTimeInterval:0.1
                                 target:self
                               selector:@selector(onTimer:)
                               userInfo:nil repeats:YES];
self.soundURL = [[NSBundle mainBundle] URLForResource:@"光辉岁月" withExtension:@"mp3"];
self.musicNum = 0;
NSError *error = nil;
self.audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:self.soundURL error:&error];
self.audioPlayer.delegate = self;
self.audioPlayer.numberOfLoops = 0;

if (nil != error) {
    NSLog(@"Error:%@",error);
}

[self.audioPlayer prepareToPlay];

[self.controlBtn setBackgroundImage:[UIImage imageNamed:@"play"]
                           forState:UIControlStateNormal];
[self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_orderplay"]
                             forState:UIControlStateNormal];
self.songNameLabel.text = @"光辉岁月";

// 初始化Slider
self.sliderProgress.minimumValue = 0.0;
self.sliderProgress.maximumValue = self.audioPlayer.duration;
[self.sliderProgress setThumbImage:[UIImage imageNamed:@"mv_voiceSliderThumb"] forState:UIControlStateNormal];
[self.sliderVolume setThumbImage:[UIImage imageNamed:@"mv_voiceSliderThumb"] forState:UIControlStateNormal];
//格式化label显示时间
[self ruleTimeLabel:self.labelAllTime andTime:self.audioPlayer.duration];

//添加UISongTableView
CGRect songTableFrame = CGRectMake(320, 50, 300, 430);
self.songTableView = [[UITableView alloc ]initWithFrame:songTableFrame
                                                  style:UITableViewStylePlain];
self.songTableView.alpha = 0.6f;
self.songTableView.dataSource = self;
self.songTableView.delegate = self;
[self.songTableView registerClass:[UITableViewCell class]
           forCellReuseIdentifier:songIdentify];

// 添加手势
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc ]
initWithTarget:self
action:@selector(onSingleTap:)];
// 表示多点触摸时的手指数量
tapGesture.numberOfTouchesRequired = 1;
// 表示轻拍的次数，现在一个手指轻拍一次，也就是单击的动作
tapGesture.numberOfTapsRequired = 1;
// 为视图view添加上手势的动作处理
[self.imageView addGestureRecognizer:tapGesture];

}

pragma mark -

pragma mark dataSource

  • (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {
    if (tableView.tag == kLrcTableView) {
    return timeArray.count;
    }else{
    return self.songsDataSource.count;
    }

}

  • (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
    static NSString *cellIdentifier = @"LRCCell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    if (tableView.tag == kLrcTableView) {
    if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
    reuseIdentifier:cellIdentifier];
    }
    cell.selectionStyle = UITableViewCellSelectionStyleNone;//该表格选中后没有颜色
    cell.backgroundColor = [UIColor clearColor];
    if (indexPath.row == lrcLineNumber) {
    cell.textLabel.text = LRCDictionary[timeArray[indexPath.row]];
    cell.textLabel.textColor = [UIColor orangeColor];
    cell.textLabel.font = [UIFont systemFontOfSize:15];
    } else {
    cell.textLabel.text = LRCDictionary[timeArray[indexPath.row]];
    cell.textLabel.textColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5];
    cell.textLabel.font = [UIFont systemFontOfSize:13];
    }
    cell.textLabel.backgroundColor = [UIColor clearColor];
    cell.textLabel.textAlignment = NSTextAlignmentCenter;
    }else
    {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
    reuseIdentifier:cellIdentifier];
    cell.textLabel.text = self.songsDataSource[indexPath.row];
    cell.textLabel.textAlignment = NSTextAlignmentLeft;

    }

    return cell;

}
//行高

  • (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 35;
    }

pragma mark -

pragma mark UITableView Delegate

  • (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    {
    if (tableView.tag == kLrcTableView) {

    }else{
    self.currentSong = self.songsDataSource[indexPath.row];
    self.musicNum = indexPath.row;
    [self initLRC];
    self.songNameLabel.text = self.songsDataSource[indexPath.row];
    self.soundURL = [[NSBundle mainBundle] URLForResource:self.currentSong withExtension:@"mp3"];

    if ([self.audioPlayer isPlaying]) {
    [self.audioPlayer stop];
    [self changeSongs];
    [self.audioPlayer play];
    }
    else
    {
    [self changeSongs];
    [self.audioPlayer play];
    [self.controlBtn setBackgroundImage:[UIImage imageNamed:@"pause"]
    forState:UIControlStateNormal];
    }
    }

}

pragma mark -

pragma mark AVAudioPlayer Delegate

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

// if (!controlPlayStyle) {
// [self sequencePlay];
// self.audioPlayer.delegate = self;
// [self.audioPlayer play];
// }else{
// [self randomPlay];
// self.audioPlayer.delegate = self;
// [self.audioPlayer play];
// }
switch (controlPlay) {
case 1:
[self sequencePlay];
self.audioPlayer.delegate = self;
[self.audioPlayer play];
break;
case 2:
[self randomPlay];
self.audioPlayer.delegate = self;
[self.audioPlayer play];
break;
case 3:
self.audioPlayer.numberOfLoops = -1;
self.audioPlayer.delegate = self;
[self.audioPlayer play];
break;

    default:
        break;
}

}

pragma mark -

pragma mark 方法回调

  • (void)onTimer:(NSTimer *)timer
    {
    self.sliderProgress.value = self.audioPlayer.currentTime;
    [self ruleTimeLabel:self.labelProgressTime andTime:self.audioPlayer.currentTime];
    //调用歌词函数
    [self displaySondWord:self.audioPlayer.currentTime];
    }

  • (IBAction)sliderProgressBtn:(UISlider *)sender {
    self.audioPlayer.currentTime = self.sliderProgress.value;
    self.sliderProgress.value =sender.value;
    }

  • (IBAction)onSliderVolumeBtn:(UISlider*)sender {
    self.audioPlayer.volume = sender.value;
    }

//播放暂停控制按钮

  • (IBAction)onControlBtn:(id)sender {
    if ([self.audioPlayer isPlaying]) {
    [self.controlBtn setBackgroundImage:[UIImage imageNamed:@"play"]
    forState:UIControlStateNormal];
    [self.audioPlayer pause];
    }else{
    [self.controlBtn setBackgroundImage:[UIImage imageNamed:@"pause"]
    forState:UIControlStateNormal];
    [self.audioPlayer play];
    }
    }

//得到歌曲列表

  • (IBAction)onSongsBtn:(id)sender {
    [UIView beginAnimations:@"animation" context:nil];
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    [UIView setAnimationDuration:0.2];
    CGRect frame = self.songTableView.frame;
    frame.origin.x = 80;
    self.songTableView.frame = frame;
    [self.view addSubview:self.songTableView];
    [UIView commitAnimations];

}

//上一首歌

  • (IBAction)onPriorBtn:(id)sender {
    if (self.musicNum == 0) {
    self.musicNum = self.songsDataSource.count - 1;
    [self changeToPlay];
    }else{
    self.musicNum -= 1;
    [self changeToPlay];

    }

}

//下一首歌

  • (IBAction)onNextBtn:(id)sender {
    if (self.musicNum == self.songsDataSource.count - 1) {
    self.musicNum = 0;
    [self changeToPlay];
    }else{
    self.musicNum += 1;
    [self changeToPlay];

    }
    NSLog(@"%ld",(long)self.musicNum);
    }

//随机播放

  • (IBAction)onSongRudomBtn:(id)sender {
    // if (controlPlayStyle == 2) {
    // controlPlayStyle = YES;
    // [self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_randplay"]
    // forState:UIControlStateNormal];
    // }else if(controlPlayStyle == 3)
    // {
    // controlPlayStyle = NO;
    // [self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_orderplay"]
    // forState:UIControlStateNormal];
    // }
    switch (controlPlayStyle) {
    case 1:
    [self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_orderplay"]
    forState:UIControlStateNormal];
    controlPlay = 1;
    controlPlayStyle = 2;
    break;
    case 2:
    [self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_randplay"]
    forState:UIControlStateNormal];
    controlPlay = 2;
    controlPlayStyle = 3;
    break;
    case 3:
    [self.playStyleBtn setBackgroundImage:[UIImage imageNamed:@"mode_repeatlist"]
    forState:UIControlStateNormal];
    controlPlay = 3;
    controlPlayStyle = 1;
    break;
    default:
    break;
    }
    }

//手势

  • (void)onSingleTap:(UITapGestureRecognizer *)singleTap
    {
    [self.songTableView removeFromSuperview];
    }

  • (void)viewWillAppear:(BOOL)animated
    {
    [super viewWillAppear:animated];
    [self.imageView startAnimating];
    }

  • (void)viewDidDisappear:(BOOL)animated
    {
    [super viewDidDisappear:YES];
    [self.imageView stopAnimating];
    }

//顺序播放

  • (void)sequencePlay
    {

      if (self.musicNum == self.songsDataSource.count - 1) {
      self.musicNum = 0;
      [self changeToPlay];
     
  }else{
      self.musicNum += 1;
      [self changeToPlay];
      
  }

}

//随机播放

  • (void)randomPlay
    {
    // if (self.audioPlayer.currentTime >= self.audioPlayer.duration-1.05) {
    NSInteger number = arc4random()%self.songsDataSource.count;
    self.musicNum = number;
    [self changeToPlay];

}

//切歌播放

  • (void)changeToPlay
    {
    self.currentSong = self.songsDataSource[self.musicNum];
    self.soundURL =[[NSBundle mainBundle] URLForResource:self.currentSong withExtension:@"mp3"];
    timeArray = [[NSMutableArray alloc] initWithCapacity:10];
    LRCDictionary = [[NSMutableDictionary alloc] initWithCapacity:10];
    [self initLRC];
    self.songNameLabel.text = self.songsDataSource[self.musicNum];
    if ([self.audioPlayer isPlaying]) {
    [self.audioPlayer stop];
    [self changeSongs];
    [self.audioPlayer play];
    }else{
    [self changeSongs];
    }
    self.audioPlayer.delegate = self;

}

//切歌

  • (void)changeSongs
    {
    NSError *error = nil;
    self.audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:self.soundURL
    error:&error];

    [self ruleTimeLabel:self.labelAllTime andTime:self.audioPlayer.duration];
    self.sliderProgress.minimumValue = 0.0;
    self.sliderProgress.maximumValue = self.audioPlayer.duration;
    if (nil != error) {
    NSLog(@"Error:%@",error);
    }

    [self.audioPlayer prepareToPlay];

}

//时间格式

  • (void)ruleTimeLabel:(UILabel *)label andTime:(float)time
    {
    NSDateFormatter *date = [[NSDateFormatter alloc]init];
    [date setDateFormat:@"mm:ss"];

    label.text = [date stringFromDate:[NSDate dateWithTimeIntervalSince1970:time]];

}

pragma mark 得到歌词

  • (void)initLRC {
    NSString *LRCPath = [[NSBundle mainBundle] pathForResource:self.songsDataSource[self.musicNum] ofType:@"lrc"];
    NSString *contentStr = [NSString stringWithContentsOfFile:LRCPath encoding:NSUTF8StringEncoding error:nil];
    // NSLog(@"contentStr = %@",contentStr);
    NSArray *array = [contentStr componentsSeparatedByString:@" "];
    for (int i = 0; i < [array count]; i++) {
    NSString *linStr = [array objectAtIndex:i];
    NSArray *lineArray = [linStr componentsSeparatedByString:@"]"];
    if ([lineArray[0] length] > 8) {
    NSString *str1 = [linStr substringWithRange:NSMakeRange(3, 1)];
    NSString *str2 = [linStr substringWithRange:NSMakeRange(6, 1)];
    if ([str1 isEqualToString:@":"] && [str2 isEqualToString:@"."]) {
    NSString *lrcStr = [lineArray objectAtIndex:1];
    NSString *timeStr = [[lineArray objectAtIndex:0] substringWithRange:NSMakeRange(1, 5)];//分割区间求歌词时间
    //把时间 和 歌词 加入词典
    [LRCDictionary setObject:lrcStr forKey:timeStr];
    [timeArray addObject:timeStr];//timeArray的count就是行数
    }
    }
    }
    }

pragma mark 动态显示歌词

  • (void)displaySondWord:(NSUInteger)time {
    // NSLog(@"time = %u",time);
    for (int i = 0; i < [timeArray count]; i++) {

      NSArray *array = [timeArray[i] componentsSeparatedByString:@":"];//把时间转换成秒
  NSUInteger currentTime = [array[0] intValue] * 60 + [array[1] intValue];
  if (i == [timeArray count]-1) {
      //求最后一句歌词的时间点
      NSArray *array1 = [timeArray[timeArray.count-1] componentsSeparatedByString:@":"];
      NSUInteger currentTime1 = [array1[0] intValue] * 60 + [array1[1] intValue];
      if (time > currentTime1) {
          [self updateLrcTableView:i];
          break;
      }
  } else {
      //求出第一句的时间点，在第一句显示前的时间内一直加载第一句
      NSArray *array2 = [timeArray[0] componentsSeparatedByString:@":"];
      NSUInteger currentTime2 = [array2[0] intValue] * 60 + [array2[1] intValue];
      if (time < currentTime2) {
          [self updateLrcTableView:0];
          //                NSLog(@"马上到第一句");
          break;
      }
      //求出下一步的歌词时间点，然后计算区间
      NSArray *array3 = [timeArray[i+1] componentsSeparatedByString:@":"];
      NSUInteger currentTime3 = [array3[0] intValue] * 60 + [array3[1] intValue];
      if (time >= currentTime && time <= currentTime3) {
          [self updateLrcTableView:i];
          break;
      }
      
  }

    }
    }

pragma mark 动态更新歌词表歌词

  • (void)updateLrcTableView:(NSUInteger)lineNumber {
    // NSLog(@"lrc = %@", [LRCDictionary objectForKey:[timeArray objectAtIndex:lineNumber]]);
    //重新载入 歌词列表lrcTabView
    lrcLineNumber = lineNumber;
    [self.lrcTableView reloadData];
    //使被选中的行移到中间
    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:lineNumber inSection:0];
    [self.lrcTableView selectRowAtIndexPath:indexPath
    animated:YES
    scrollPosition:UITableViewScrollPositionMiddle];
    // NSLog(@"%i",lineNumber);
    }

  • (void)didReceiveMemoryWarning
    {
    [super didReceiveMemoryWarning];

}

@end

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