播放音效

#import <AVFoundation/AVFoundation.h>

//1.獲取資源文件的URL
    NSURL *url = [[NSBundle mainBundle]URLForResource:@"m_03.wav" withExtension:nil];
    
    //2.創(chuàng)建音效ID,一個音效文件對應(yīng)一個SoundID
    SystemSoundID soundID;
    AudioServicesCreateSystemSoundID(CFBridgingRetain(url), &soundID);
    
    //播放音效并震動(真機)
    //    AudioServicesPlayAlertSound(soundID);
    //3.播放音效
    AudioServicesPlaySystemSound(soundID);

音效工具類

#import "SoundTool.h"
#import <AVFoundation/AVFoundation.h>
@interface SoundTool()
//字典
//@property (nonatomic,strong)NSMutableDictionary *dict;
@end

@implementation SoundTool
static NSMutableDictionary *_dict;
//加載類的時候調(diào)用,只會在第一次使用的時候調(diào)用(導(dǎo)入類就會調(diào)用)
+(void)load {
    _dict = [NSMutableDictionary dictionary];
}
//使用類時才會調(diào)用
+(void)initialize{}
+(void)playSoundWithFileName:(NSString *)fileName{
    //key:fileName value:soundID
    //1.判斷fileName是否有值
    if(fileName.length == 0) return;
    //2.判斷soundID是否有值
    //2.1獲取sundID
    SystemSoundID soundID = [_dict[fileName] unsignedIntValue];
    //判斷
    if(!soundID){
        //3.創(chuàng)建soundID
        NSURL *url = [[NSBundle mainBundle]URLForResource:fileName withExtension:nil];
        AudioServicesCreateSystemSoundID(CFBridgingRetain(url), &soundID);
        if(!url) return;
        //加入到字典
        _dict[fileName] = @(soundID);
    }
    //4.播放音效
    AudioServicesPlaySystemSound(soundID);
}
+(void)disposeSoundIDWithFileName:(NSString *)fileName{
    if(fileName.length == 0) return;
    //獲取soundID
    SystemSoundID soundID = [_dict[fileName] unsignedIntValue];
    //判斷是否有值
    if(soundID){
        AudioServicesDisposeSystemSoundID(soundID);
        //從字典移除
        [_dict removeObjectForKey:fileName];
    }
}
@end

音樂

@property(nonatomic,strong)AVAudioPlayer *audioPlayer;
    //0.創(chuàng)建音頻播放的url
    NSURL *url = [[NSBundle mainBundle]URLForResource:@"童話.mp3" withExtension:nil];
    //1,創(chuàng)建音頻播放對象
    AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
    self.audioPlayer = audioPlayer;
    //2.準備播放 開辟內(nèi)存空間,做播放前的準備工作 如果不調(diào)用,默認在播放時調(diào)用
    [audioPlayer prepareToPlay];
    //3.播放
    [audioPlayer play];