iOS 13 UITabBar 重新定位到顶部

Question

我已按照将我的标签栏重新定位到页面顶部。在 iOS 13 发布之前，它一直运行良好。在 iOS 13 中，标签栏在屏幕底部可见。我应该使用任何其他解决方法吗？

有没有人遇到同样的问题？

更新：

下面是我在我的应用程序中使用的一段代码：

- (void) viewWillLayoutSubviews {
    [super viewWillLayoutSubviews];
    [self.tabBar invalidateIntrinsicContentSize];

    // Just a quick fix for making this to happen for iOS versions between 11.0 to 11.1
    // Updating the frame in Main queue.
    dispatch_async(dispatch_get_main_queue(), ^{
        [self changeTabBarPosition];
    });

    // Set the translucent property to NO then back to YES to
    // force the UITabBar to reblur, otherwise part of the
    // new frame will be completely transparent if we rotate
    // from a landscape orientation to a portrait orientation.

    self.tabBar.translucent = NO;
    self.tabBar.translucent = YES;
}

- (void)changeTabBarPosition {
    CGFloat tabSize = 44.0;
    UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
    if (UIInterfaceOrientationIsLandscape(orientation)) {
        tabSize = 32.0;
    }
    CGRect tabFrame = self.tabBar.frame;
    tabFrame.size.height = tabSize;
    tabFrame.origin.y = [UIApplication sharedApplication].statusBarFrame.size.height;
    self.tabBar.frame = tabFrame;
}

Answer 1

我只是在 iOS 13 上测试了下面的代码。它仍然有效。

- (void)viewDidLayoutSubviews {
  [super viewDidLayoutSubviews];
  self.tabBarController.tabBar.frame = CGRectMake(0, 0, self.view.frame.size.width, self.tabBarController.tabBar.frame.size.height);
}

Answer 2

我在 his/her 回答中提到的@Thanh Vu 的帮助下找到了解决方案。下面的一段代码解决了我的问题。

- (void) viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];

    [self.tabBar invalidateIntrinsicContentSize];

    CGRect tabFrame = self.tabBar.frame;
    tabFrame.size.height = 44.0;
    tabFrame.origin.y = 0;
    self.tabBar.frame = tabFrame;

    // Set the translucent property to NO then back to YES to
    // force the UITabBar to reblur, otherwise part of the
    // new frame will be completely transparent if we rotate
    // from a landscape orientation to a portrait orientation.
    self.tabBar.translucent = NO;
    self.tabBar.translucent = YES;
}

Answer 3

经过一番努力，我也得到了这个解决方案，使用 Swift 5 + IOS13.2 Sdk。 .

class MyUITabBarController:UITabBarController{
    override func viewDidLayoutSubviews(){
        super.viewDidLayoutSubviews()
        var frame = self.tabBar.frame
        frame.origin.y = 0
        self.tabBar.frame = frame
    }
}

iOS 13 UITabBar 重新定位到顶部

iOS 13 UITabBar RePosition to Top

objective-c

ios

ios13

xcode11