ios – 从UITapGestureRecognizer中排除子视图

概述我有一个子视图和一个超级视图. superview附加了一个UITapGestureRecognizer. UIView *superview = [[UIView alloc] initWithFrame:CGRectMake:(0, 0, 320, 480);UIView *subview = [[UIView alloc] initWithFrame:CGRectMake:(100, 10 我有一个子视图和一个超级视图. supervIEw附加了一个UITapGestureRecognizer.

UIVIEw *supervIEw = [[UIVIEw alloc] initWithFrame:CGRectMake:(0,320,480);UIVIEw *subvIEw = [[UIVIEw alloc] initWithFrame:CGRectMake:(100,100,100);UIPanGestureRecognizer *recognizer = [[UIPanGestureRecognizer alloc] initWithTarget: self action: @selector(handleTap);supervIEw.userInteractionEnabled = YES;subvIEw.userInteractionEnabled = NO;[supervIEw addGestureRecognizer:recognizer];[self addSubvIEw:supervIEw];[supervIEw addSubvIEw:subvIEw];

识别器也会在子视图中触发,有没有办法从子视图中排除识别器？

我知道之前已经问过这个问题,但我没有找到一个好的答案.

解决方法 您可以使用手势识别器委托来限制可以识别触摸的区域,类似于此示例：

recognizer.delegate = self;...- (BOol)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceivetouch:(UItouch *)touch{    CGPoint touchPoint = [touch locationInVIEw:supervIEw];    return !CGRectContainsPoint(subvIEw.frame,touchPoint);}

请注意,您需要保持对父视图和子视图的引用(使它们成为实例变量？)才能在委托方法中使用它们

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