Question

隐藏IOS7中的标签栏显示非正式行为

当我使用

时

self.tabBarController.tabBar.hidden = YES;

上面的代码隐藏了tabBar，但我的底部视图不会保持交互式

但是当我在导航中推送viewController之前使用它时

someViewController.hidesBottomBarWhenPushed = YES
[self.navigationController pushViewController:someViewController animated:YES];

它隐藏了tabbar以及从底部查看也是交互式的。但是在这种情况下的问题是，当我们弹出viewController时，它会在tabbar上方显示黑条几秒钟。

Answer 1

我希望你能得到解决方案。只是为了确保，你有没有尝试

 self.edgesForExtendedLayout = UIRectEdgeBottom;

Answer 2

我认为你们两个问题都是由于没有明确定义/缺少autoresizingMask或缺少自动布局限制（无论你使用哪个）。

隐藏标签栏时UITabBarController的作用是拉伸view足以使其tabBar在屏幕外。你包含的视图控制器＆＃39;反过来，视图应适当拉伸以使用新空间，否则您将获得空白区域和/或非交互区域。

修改

刚才意识到隐藏标签栏不在默认SDK中，而是在很久以前的category中。

无论如何，拉伸UITabBarController的视图框架在我看来是最优雅的方式来隐藏＆＃34;标签栏（实际上将其移离屏幕），因为您不必处理子视图或直接搜索标签栏框架。

Answer 3

试试这个，如果你想隐藏/显示视图的UITabBarController：

隐藏标签栏：

 - (void)hideTabBar:(UITabBarController *) tabbarcontroller
 {
     for(UIView *view in tabbarcontroller.view.subviews)
     {
        if([view isKindOfClass:[UITabBar class]])
       {
           [view setFrame:CGRectMake(view.frame.origin.x, 480, view.frame.size.width, view.frame.size.height)];
        }
        else
        {
           [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 480)];
        }
     }
  }

显示标签栏：

   - (void)showTabBar:(UITabBarController *) tabbarcontroller
     {

         for(UIView *view in tabbarcontroller.view.subviews)
         {
            if([view isKindOfClass:[UITabBar class]])
            {
               [view setFrame:CGRectMake(view.frame.origin.x, 431, view.frame.size.width, view.frame.size.height)];
            }
            else
            {
               [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 431)];
            }
         }
      }

可能会有所帮助。

Answer 4

所以我把一些用Objective-C编写的答案改写成Swift 3.0，认为它会起作用。这是代码：

func hideTabBar() {
    let tabBarControllerView = self.tabBarController?.view
    if let tabBarControllerSubviews = tabBarControllerView?.subviews {
        for view in tabBarControllerSubviews {
            if view is UITabBar {
                view.frame = CGRect(
                    x: view.frame.origin.x,
                    y: (UIScreen.main.bounds.size.height == 568 ? 568 : 480) + 20,
                    width: self.view.frame.size.width,
                    height: self.view.frame.size.height
                )
            } else {
                view.frame = CGRect(
                    x: view.frame.origin.x,
                    y: view.frame.origin.y,
                    width: self.view.frame.size.width,
                    height: UIScreen.main.bounds.size.height == 568 ? 568 : 480
                )
            }
        }
    }
}

func showTabBar() {
    let tabBarControllerView = self.tabBarController?.view
    if let tabBarControllerSubviews = tabBarControllerView?.subviews {
        for view in tabBarControllerSubviews {
            if view is UITabBar {
                view.frame = CGRect(
                    x: view.frame.origin.x,
                    y: (UIScreen.main.bounds.size.height == 568 ? 519 : 431),
                    width: self.view.frame.size.width,
                    height: self.view.frame.size.height
                )
            } else {
                view.frame = CGRect(
                    x: view.frame.origin.x,
                    y: view.frame.origin.y,
                    width: self.view.frame.size.width,
                    height: UIScreen.main.bounds.size.height == 568 ? 519 : 431
                )
            }
        }
    }
}

Answer 5

使用以下代码解决您的问题

隐藏：

-(void)hideTabBar:(UITabBarController *)tabbarcontroller
    {
        CGRect screenRect = [[UIScreen mainScreen] bounds];

        float fHeight = screenRect.size.height;
        if(  UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
        {
            fHeight = screenRect.size.width;
        }

        for(UIView *view in tabbarcontroller.view.subviews)
        {
            if([view isKindOfClass:[UITabBar class]])
            {
                [view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
            }
            else
            {
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
                view.backgroundColor = [UIColor blackColor];
            }
        }
    }

显示：

-(void)showTabBar:(UITabBarController *) tabbarcontroller
{
    CGRect screenRect = [[UIScreen mainScreen] bounds];
    float fHeight = screenRect.size.height - 49.0;

    if(  UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
    {
        fHeight = screenRect.size.width - 49.0;
    }
    for(UIView *view in tabbarcontroller.view.subviews)
    {
        if([view isKindOfClass:[UITabBar class]])
        {
            [view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
        }
        else
        {
            [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
        }
    }
}

根据您的要求在viewWillAppear和设备旋转方法中使用此方法

IOS 7隐藏tabbar问题

5 个答案: