Bridge-老大 本地音乐播放器---持续更新（伴奏/原唱切换

最近看了《中国有嘻哈》听了Bridge的那首《老大》有点中毒，把以前在学校时写的音乐播放器Demo重新修改了一下，花了10元钱在淘宝去做了这首歌的伴奏，不过还是很坑，听了勿喷。下面进入正题

先来两张效果图压压惊，感觉个人审美还是不错的

老大 老大大

代码我在这里只贴几个部分功能，下面👇有Demo下载链接，歌曲、伴奏、歌词里面都有，还望喜欢的朋友给个Stare✨

引用库

引用库

AudioManager.h文件

// 伴奏
#define kBackGroundMusic @"老大伴奏"

// 原声
#define KBackGroundMusic1 @"Bridge - 老大"

#import <Foundation/Foundation.h>
#import <AVFoundation/AVFoundation.h>

@interface AudioManager : NSObject

@property (nonatomic, strong) NSArray *musicArray;
@property (strong, nonatomic) AVAudioPlayer *musicPlayer;


+(instancetype)defaultManager;
- (BOOL)playMusic:(NSString *)musicFileName;
//-(NSArray *)musicArray;
-(void)pause;///<暂停后继续播放 回到最初
-(void)stop;
-(BOOL)play;
-(BOOL)isPlaying;

AudioManager.m文件

#import "AudioManager.h"
@interface AudioManager()


@end
@implementation AudioManager


+(instancetype)defaultManager
{
    static AudioManager *manager = nil;
    @synchronized(self) {
        if (!manager) {
            manager = [[AudioManager alloc] init];
        }
    }
    return manager;
}
-(BOOL)playMusic:(NSString *)musicFileName
{
    NSURL *musicURL = [[NSBundle mainBundle]URLForResource:musicFileName withExtension:@"mp3"];
    if(!musicURL)
    {
        return NO;
    }
    NSError *error = nil;
    self.musicPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:musicURL error:&error];
    if(error)
    {
        NSLog(@"播放文件%@出错,错误为%@",musicFileName,error);
    }
//    self.musicPlayer.numberOfLoops = -1;///<音乐循环播放
    [self.musicPlayer play];
    return YES;
}

-(void)pause
{
    [self.musicPlayer pause];
}

-(void)stop
{
    [self.musicPlayer stop];
//    self.musicPlayer.currentTime = 0;
}

-(BOOL)play
{
    if([self.musicPlayer prepareToPlay])
    {
        [self.musicPlayer play];
        return YES;
    }
    return NO;
}

-(BOOL)isPlaying
{
    return self.musicPlayer.isPlaying;
}

暂停/播放、上一首、下一首按钮点击事件

#pragma mark - 点击左键事件
- (IBAction)leftBtn:(UIButton *)sender
{
    [self playPrev];
}

#pragma mark - 点击右键事件
- (IBAction)rightBtn:(UIButton *)sender
{
    [self playNext];
}

// 切换播放、暂停按钮
- (void) resumeOrPause{
    if(self.isPlayer.selected == YES)
    {
        self.isPlayer.selected = NO;
        [[AudioManager defaultManager]stop];
    }
    else if(self.isPlayer.selected == NO)
    {
        self.isPlayer.selected =YES;
        [[AudioManager defaultManager]play];
    }
}

歌词解析

/**
 * 解析歌词
 */
-(void)parselyric
{
    if([self.musicName.text isEqualToString:KBackGroundMusic1])
    {
        self.lyricPath = [[NSBundle mainBundle]pathForResource:@"老大歌词" ofType:@"lrc"];///<歌词文件路径
    }
    else if([self.musicName.text isEqualToString:kBackGroundMusic])
    {
        self.lyricPath = [[NSBundle mainBundle]pathForResource:@"老大歌词" ofType:@"lrc"];
    }
    if ([self.lyricPath length]) {
        
        //get the lyric string
        NSString *lyc = [NSString stringWithContentsOfFile:self.lyricPath encoding:NSUTF8StringEncoding error:nil];
        
        //init
        _musictime = [[NSMutableArray alloc]init];
        _lyrics = [[NSMutableArray alloc]init];
        self.musictime = [NSMutableArray arrayWithCapacity:0];
        self.lrcDic = [NSMutableDictionary dictionaryWithCapacity:0];
        
        NSArray *array = [lyc componentsSeparatedByString:@"\n"];
        
        for (int i = 0; i < array.count; i++)
        {
            
            NSString *lineString = [array objectAtIndex:i];
            
            NSArray *lineArray = [lineString componentsSeparatedByString:@"]"];
            
            if ([lineArray[0] length] > 7) {
                NSString *str1 = [lineString substringWithRange:NSMakeRange(3, 1)];
                NSString *str2 = [lineString substringWithRange:NSMakeRange(6, 1)];
                if ([str1 isEqualToString:@":"]&&[str2 isEqualToString:@"."])
                {
                    //截取歌词和时间;
                    NSString *timeStr = [lineString substringWithRange:NSMakeRange(1, 5)];
                    NSString *lrcStr = [lineString substringFromIndex:10   ];///<歌词字符串
                    [self.musictime addObject:timeStr];
                    [self.lrcDic setObject:lrcStr forKey:timeStr];

                }
 
            }
        }
    }
}

锁屏后台播放

授权

在AppDelegate中注册后台播放

AVAudioSession *session = [AVAudioSession sharedInstance];
    if ([session setCategory:AVAudioSessionCategoryPlayback error:nil]) {
        if ([session setActive:YES error:nil]) {
            NSLog(@"后台播放准备完毕");
        }
    }

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    [self becomeFirstResponder];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [[UIApplication sharedApplication] endReceivingRemoteControlEvents];
    [self resignFirstResponder];
}

在每一首音乐切换的时候调用

- (void)configPlayingInfo{
    if(NSClassFromString(@"MPNowPlayingInfoCenter")){
        NSMutableDictionary * dict = [[NSMutableDictionary alloc] init];
        
        [dict setObject:@"Bridge - 老大" forKey:MPMediaItemPropertyTitle];
        
        
        [dict setObject:@"Bridge" forKey:MPMediaItemPropertyArtist];
        
        
        [dict setObject:[[MPMediaItemArtwork alloc] initWithImage:[UIImage imageNamed:@"Bridge"]]  forKey:MPMediaItemPropertyArtwork];
        
        
        
        
        [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:nil];
        
        
        [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:dict];
    }
    
}

AVAudioPlayerDelegate

#pragma mark - AVAudioPlayerDelegate 
/**
 * 自动播放下一首
 */
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
    [self playNext];
}

- (void)audioPlayerDecodeErrorDidOccur:(AVAudioPlayer *)player error:(NSError * __nullable)error
{
    // 解码失败，自动播放下一首
    [self playNext];
}

//  音乐播放器被打断 (如开始 打、接电话)
- (void)audioPlayerBeginInterruption:(AVAudioPlayer *)player
{
    // 会自动暂停  do nothing ...
    NSLog(@"audioPlayerBeginInterruption---被打断");
}

//  音乐播放器打断终止 (如结束 打、接电话)
- (void)audioPlayerEndInterruption:(AVAudioPlayer *)player withOptions:(NSUInteger)flags
{
    // 手动恢复播放
    [player play];
    NSLog(@"audioPlayerEndInterruption---打断终止");
}

耳机线控

- (void)remoteControlReceivedWithEvent:(UIEvent*)event{
    if(event.type == UIEventTypeRemoteControl){
        switch(event.subtype){
                
                
            case UIEventSubtypeRemoteControlTogglePlayPause:
 
                [self resumeOrPause];
                // 切换播放、暂停按钮
                
                break;
                
            case UIEventSubtypeRemoteControlPreviousTrack:
                
                [self playPrev];
                // 播放上一曲按钮
                
                break;
                
            case UIEventSubtypeRemoteControlNextTrack:
                
                [self playNext];
                // 播放下一曲按钮
                
                break;
                
            default:
                
                
                break;
        }
    }
}

Demo下载地址 喜欢的记得给个Stare✨ 欢迎大家提交建议

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