iOS/Swift跳转界面时隐藏tabBar的方法

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

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;

//注意：在push后设置self.hidesBottomBarWhenPushed=NO;
//这样back回来的时候，tabBar会恢复正常显示，不然就。。。哈哈。

let detailCtrl = ScanViewController(nibName: "ScanViewController", bundle: nil);
//detailCtrl.hidesBottomBarWhenPushed = true
self.hidesBottomBarWhenPushed = true
self.navigationController?.pushViewController(detailCtrl, animated: true)
self.hidesBottomBarWhenPushed = false