PageViewController中特定視圖控制器的隱藏/顯示狀態欄

Question

我有一個UIPageViewController包含3個視圖控制器。我想隱藏前兩個視圖控制器的狀態欄並顯示最後一個視圖控制器的狀態欄。什麼是最好的方法來做到這一點？

Answer 1

在你的PageViewController的代理中添加這個。

- (BOOL)prefersStatusBarHidden 
{ 
    PageContentViewController *controller = self.pageViewController.viewControllers[0]; 
    if (controller.pageIndex == 2) { 
     return NO; 
    } else { 
     return YES; 
    } 
} 

- (void)pageViewController:(UIPageViewController *)pageViewController didFinishAnimating:(BOOL)finished previousViewControllers:(NSArray *)previousViewControllers transitionCompleted:(BOOL)completed 
{ 
    if (completed) { 
     PageContentViewController *controller = self.pageViewController.viewControllers[0]; 
     NSUInteger pageIndex = controller.pageIndex; 

     // only update status bar when transition is between page 2 and page 3 
     if (pageIndex == 1 || pageIndex == 2) { 
      [self setNeedsStatusBarAppearanceUpdate]; 
     } 
    } 
}