iOS阻止子视图相应父视图事件

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实现如下代理方法

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#pragma mark - UIGestureRecognizerDelegate
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    if ([touch.view isDescendantOfView:你想屏蔽点击事件的View]) {
        return NO;
    }
    return YES;
}