ios tabbar隐藏

//1.设置self.tabBarController.tabBar.hidden=YES; 

//2.如果在push跳转时需要隐藏tabBar，设置self.hidesBottomBarWhenPushed=YES;

 

    self.hidesBottomBarWhenPushed=YES;

    NextViewController *next=[[NextViewController alloc]init];

    [self.navigationController pushViewController:next animated:YES];

    self.hidesBottomBarWhenPushed=NO;

 

//并在push后设置self.hidesBottomBarWhenPushed=NO;

//这样back回来的时候，tabBar会恢复正常显示。