AVFoundation 爲 UIButton 添加音效
1.向項目中添加AVFoundation.framework
2.向目標文件中添加方法:
- (void) playCoinSound {
//創建SystemSoundID對象,用於綁定聲音文件
SystemSoundID soundFileObj;
//獲取聲音文件的路徑
NSString *sourcePath = [[NSBundle mainBundle] pathForResource:@"CoinSound" ofType:@"mp3"];
//將string轉爲url
NSURL *sourceUrl = [NSURL fileURLWithPath:sourcePath];
//將聲音文件和SystemSoundID綁定
AudioServicesCreateSystemSoundID((__bridge CFURLRef _Nonnull)(sourceUrl), &soundFileObj);
//播放聲音,但此方法只能播放30s以內的文件
AudioServicesPlaySystemSound(soundFileObj);
}
3.在UIButton動作方法中調用上面的方法:
- (IBAction)editButtonClick:(id)sender {
[self playCoinSound];
}
4.如果很多地方都設置按鈕聲音,可以爲UIButton添加子類或分類,並在其中複寫- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent*)event方法:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[self playCoinSound];
[super touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event];
}
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