ios - 如何在自定义键盘中播放键盘点击声音？

Question

我用 UIView 创建了自定义键盘。但是，我没有听到键盘的咔嗒声。所以我尝试了以下代码，但我什么也听不到。如何播放键盘敲击声？

NSURL* musicFile = [NSURL fileURLWithPath:[[NSBundle mainBundle] 
                                               pathForResource:@"Tock"
                                               ofType:@"aiff"]];
    AVAudioPlayer *click = [[AVAudioPlayer alloc] initWithContentsOfURL:musicFile error:nil];
    [click setVolume:0.15f];
    [click play];

我也试过这个:

AudioServicesPlaySystemSound(0x450);

我怎样才能做到这一点？

Answer 1

试试这个:

[[UIDevice currentDevice] playInputClick];

注意

Use this method to play the standard system keyboard click in response to a user tapping in a custom input or keyboard accessory view. A click plays only if the user has enabled keyboard clicks in Settings > Sounds, and only if the input view is itself enabled and visible.

To enable a custom input or accessory view for input clicks, perform the following two steps:

Adopt the UIInputViewAudioFeedback protocol in your input view class. Implement the enableInputClicksWhenVisible delegate method to return YES.