MPMoviePlayerController的视图无法识别触摸

问题描述

这是我的代码：

_mediaPlayer = [[MPMoviePlayerController alloc] init];
_mediaPlayer.controlStyle = MPMovieControlStyleNone;
_mediaPlayer.shouldAutoplay = NO;
[_mediaPlayer.view setFrame: CGRectMake(5, 5, 600,400)];
[playerHolder addSubview: _mediaPlayer.view];
//
[self prepareScreenContentToPlay];
//
UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleRollTap:)];
singleFingerTap.numberOfTapsRequired = 1;
[_mediaPlayer.view addGestureRecognizer:singleFingerTap];
[singleFingerTap release];

手势识别器的动作方法：

And action method for gesture recognizer:

-(void)handleRollTap:(UITapGestureRecognizer*)sender{
    NSLog(@"%@", @"touch");
}

MPMoviePlayerController工作正常。另外我想处理MPMoviePlayerController视图上的触摸，但 handleRollTap 从未调用过。为什么MPMoviePlayerController的视图不适用于UITapGestureRecognizer？

MPMoviePlayerController works fine. In addition I want to handle touch on MPMoviePlayerController view but handleRollTap never called. Why MPMoviePlayerController's view not works with UITapGestureRecognizer?

好的。如果 singleFingerTap.numberOfTapsRequired = 2; 那么一切正常。但没有什么可以单击...

OK. If singleFingerTap.numberOfTapsRequired = 2; then all works fine as well. But nothing for single tap..

推荐答案

实际上，答案很简单：

• 将自己设置为UIGestureRecognizer委托


• 为委托方法返回YES：

例如

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture)];
tapGestureRecognizer.delegate = self;

以及代码中的其他地方：

and somewhere else in the code:

#pragma mark - gesture delegate
// this allows you to dispatch touches
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
return YES;
}
// this enables you to handle multiple recognizers on single view
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
return YES;
}

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