案例說明：點擊下圖子控件，會觸發(fā)父控件的點擊事件
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解決方法1：
給子控件添加空事件氯析、或者子控件實例為UIButton,添加空事件
解決方法2：事件攔截
tap.delegate = self;
#pragma mark - UIGestureRecognizerDelegate
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
// self.contentView為子控件
if ([touch.view isDescendantOfView:self.contentView]) {
return NO;
}
return YES;
}
解決方法3：控制點擊區(qū)域 使用RAC手勢為例
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]init];
tap.delegate = self;
[self addGestureRecognizer:tap];
@weakify(self);
[[tap rac_gestureSignal] subscribeNext:^(UITapGestureRecognizer *tap) {
@strongify(self);
if(CGRectContainsPoint(self.frame, [tap locationInView:self.contentView])) {
// 相當于點擊了子控件
} else{
// 相當于點擊了父控件
};
}];
