iphone - 手势识别器 : shouldReceiveTouch: not getting called

Question

gestureRecognizer:shouldReceive Touch: 方法未被调用。我设置不当吗？

-(id) init 
{
UILongPressGestureRecognizer *touchHold = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleTouchHold:)];
touchHold.minimumPressDuration = 1.0f;
touchHold.numberOfTouchesRequired = 1;
[[CCDirector sharedDirector].openGLView addGestureRecognizer:touchHold];
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch 
{
     return NO;
}

即使我将 bool 设置为 no，仍会调用按住方法。

Answer 1

好像你还没有设置 delegate ？

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

是UIGestureRecognizerDelegate的一部分。所以你也应该设置委托(delegate)。

touchHold.delegate = self;

编辑:你应该告诉你的 View Controller 实现 UIGestureRecognizerDelegate。有点像

@interface YourViewController <UIGestureRecognizerDelegate>