我在view加了tap手势, 点击空白，确实可以收起下拉筛选了，但是点击大table的cell不能跳转了！！！
`__weak typeof(self)weakSelf = self;
UITapGestureRecognizer *tableTap = [[UITapGestureRecognizer alloc] initWithActionBlock:^(id _Nonnull sender) {
[weakSelf foldHeaders];
[self.view addGestureRecognizer:tableTap];`
设置cancelsTouchesInView这个属性就行了:
` __weak typeof(self)weakSelf = self;
UITapGestureRecognizer *tableTap = [[UITapGestureRecognizer alloc] initWithActionBlock:^(id _Nonnull sender) {
[weakSelf foldHeaders];
tableTap.cancelsTouchesInView = NO;
[self.view addGestureRecognizer:tableTap];`
