iOS tableView 点击空白处关闭窗口

一：添加手势

 UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(ClickScreen)];
 tap.cancelsTouchesInView = NO;//防止嵌套的点击事件互相影响
 [self.tableView2 addGestureRecognizer:tap];

二：处理事件

-(void)ClickScreen{
    if(self.moreView.hidden == false){
        self.moreView.hidden = true;
    }
    
    if(self.moreView2.hidden == false){
        self.moreView2.hidden = true;
    }
}