Question

我有一个tabbarcontroller作为主控制器，当一个视图被推动时我想隐藏它。我使用hidesBottomBarWhenPushed但不工作。感谢。

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.hidesBottomBarWhenPushed = YES;
    }
    return self;
}

Answer 1

尝试在您的父视图控制器中按下此控制器时添加此行：

    YourViewController *controller = [[YourViewController alloc]init....];
    controller.hidesBottomBarWhenPushed = YES;
    //then push the view controller

祝你好运

Answer 2

这仅在tabBarController的viewControllers之一是UINavigationController时才有效。仅当视图控制器被推入UINavigationController的堆栈时才会遵守hidesBottomBarWhenPushed属性，如果它是根视图控制器则不会做太多。

Answer 3

我已经实现了我自己的自定义tabBarController（它扩展了原来的 UITabBarController ），因为我需要在某些情况下（如设备轮换）以编程方式切换条形图，这是我的实现（评论解释如何它有效）：

- (void)hideBottomBar:(BOOL)hide
{
    @try 
    {
        // UITabBarController has 2 subviews:
        // - the first (index:0) is that one containing the active view controller's view
        // - the second (index:1) is that one containing the UITabBar (self.tabBar)
        UIView *topView = [self.view.subviews objectAtIndex:0];
        UIView *bottomView = [self.view.subviews objectAtIndex:1];

        // hide tabs container if necessary
        [bottomView setHidden:hide];

        // adjust frame
        if (hide) 
        {
            // expand main view to fit available space
            [topView setFrame:self.view.bounds];
        }
        else
        {
            // restore main view frame
            CGRect frame = topView.frame;
            frame.size.height -= bottomView.frame.size.height;
            [topView setFrame:frame];
        }
    }
    @catch (NSException *exception) 
    {
        [[GTMLogger sharedLogger] logError:@"Error occured adjusting tabs view: %@", exception.description];
    }
}

xcode无法隐藏tabbarcontroller

3 个答案: