对tabbar进行隐藏和显示-对于需要tabbar的项目

可以在基础类中实现以下方法即可

- (void)viewDidAppear:(BOOL)animated{
    
    [super viewDidAppear:YES];
    
    self.hidesBottomBarWhenPushed = YES;//隐藏
    
}

- (void)viewDidDisappear:(BOOL)animated{
    
    [super viewDidDisappear:YES];
    
    self.hidesBottomBarWhenPushed = NO;//显示

}