AVAdioPlayer方法介绍及相关知识介绍

1.导入AVFoundation.framework

2.在头部导入

#import <AVFoundation/AVFoundation.h>

3.创建一个继承AVAudioPlayer的工具类

//MyAVAudioPlayer.h
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface MyAVAudioPlayer : AVAudioPlayer

@property(nonatomic,strong) AVAudioPlayer *player;

-(instancetype)init;
+(instancetype)sharedAVAudioPlayer;
//通过传递的歌曲名称进行播放
-(void)playMusicWithMusicName:(NSString *)musicName;
//开始或暂停
-(void)playOrStopMusic;

@end

//MyAVAudioPlayer.m
#import "MyAVAudioPlayer.h"

@implementation MyAVAudioPlayer

static NSMutableDictionary *_players;

-(instancetype)init{
    if (self == [super init]) {
        
    }
    return self;
}
#pragma mark 单例模式(避免同时播放多首歌)
+(instancetype)sharedAVAudioPlayer{
    static MyAVAudioPlayer *sharedAccountManagerInstance = nil;
    static dispatch_once_t predicate;
    dispatch_once(&predicate, ^{
        sharedAccountManagerInstance = [[self alloc] init];
    });
    return sharedAccountManagerInstance;
}
#pragma mark 通过音乐名称播放音乐
-(void)playMusicWithMusicName:(NSString *)musicName{
    

    // 2.1.获取对应音乐资源
    NSURL *fileUrl = [[NSBundle mainBundle] URLForResource:musicName withExtension:@"mp3"];
    
    if (fileUrl == nil) return;
    
    // 2.2.创建对应的播放器
    _player = [[AVAudioPlayer alloc] initWithContentsOfURL:fileUrl error:nil];
    // 2.4.准备播放
    [_player prepareToPlay];

    // 3.播放音乐
    [_player play];
}
-(void)playOrStopMusic{
    if ([_player isPlaying]) {
        [_player pause];
        return;
    }
    [_player play];
}

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