http://www.cnblogs.com/snake-hand/p/3178070.html
重写 hitTest:t withEvent:
// 判断点在不在按钮上面
CGPoint childPoint = [self convertPoint:point toView:childView];
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
__block UIView *fitView = nil;
// 遍历子控件
[self.subviews enumerateObjectsUsingBlock:^(UIView *childView, NSUInteger idx, BOOL *stop) {
if ([childView isKindOfClass:[UIButton class]]) {
// 判断点在不在按钮上面
CGPoint childPoint = [self convertPoint:point toView:childView];
fitView = [childView hitTest:childPoint withEvent:event];
// if (fitView)
NSLog(@"%@",fitView);
}
}];
if (fitView == nil) {
fitView = self;
}
return fitView;
}
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