iphone - IOS播放短促的声音

Question

我正在尝试在我的 iPhone 应用程序中播放短促的警报声我正在使用我找到的这段代码，但它不会播放任何声音。

NSString *toneFilename = [[NSBundle mainBundle] pathForResource:@"alarm" ofType:@"wav"];
    NSURL *toneURLRef = [NSURL fileURLWithPath:toneFilename];
    SystemSoundID Sound;

    AudioServicesCreateSystemSoundID(
                                     (__bridge CFURLRef) toneURLRef,
                                     &camerSound
                                     );

    AudioServicesPlaySystemSound(Sound);

当我尝试使振动起作用时:

AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);

谢谢

Answer 1

使用 AVFoundationFramework

将 AVFoundation.framework 添加到项目中。

#import <AVFoundation/AVFoundation.h>

NSString *toneFilename = [[NSBundle mainBundle] pathForResource:@"alarm" ofType:@"wav"];
NSURL *toneURLRef = [NSURL fileURLWithPath:toneFilename];
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL: toneURLRef error: nil];
player.currentTime = 0;
player.volume = 1.0f;
[player play];