隐藏导航栏和标签栏后 UICollectionView 框架发生变化

Posted 2023-03-22

【中文标题】隐藏导航栏和标签栏后 UICollectionView 框架发生变化

【英文标题】：UICollectionView frame changes after hide Nav Bar and Tab Bar

【发布时间】：2014-04-17 10:50:24

【问题描述】：

我试图保留我用作照片库的Collection View 的frame。但是在视图中隐藏UITabBarController 和UINavigationController 后，它的框架发生了变化。

这是我用来隐藏两者的代码：

- (void)hideTabBar:(UITabBarController *) tabbarcontroller

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0];


    if(IS_IPHONE_5)
    
        for(UIView *view in tabbarcontroller.view.subviews)
        
            if([view isKindOfClass:[UITabBar class]])
            
                [view setFrame:CGRectMake(view.frame.origin.x, 568, view.frame.size.width, view.frame.size.height)];
            
            else
            
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 568)];
            
        

    
    else
    
        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)];
            
        

    


    [UIView commitAnimations];


- (void)showTabBar:(UITabBarController *) tabbarcontroller

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0];

    if(IS_IPHONE_5)
    
        for(UIView *view in tabbarcontroller.view.subviews)
        
            if([view isKindOfClass:[UITabBar class]])
            
                [view setFrame:CGRectMake(view.frame.origin.x, 519, view.frame.size.width, view.frame.size.height)];

            
            else
            
                [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 519)];
            
        

    
    else
    
        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)];
            
        

    



    [UIView commitAnimations];


- (void)hideNavBar:(UINavigationController *) navBarController

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0];

    [self.navigationController setNavigationBarHidden:YES];

    [UIView commitAnimations];


- (void)showNavBar:(UINavigationController *) navBarController

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:0];
   [self.navigationController setNavigationBarHidden:NO];

    [UIView commitAnimations];

这是我的问题的图片：

非常感谢您的帮助

【参考方案1】：

我假设您正在使用 ScrollView 来展示照片。我在您的视图控制器中遇到了类似的问题并进行了设置 self.automaticallyAdjustsScrollViewInsets = NO; 应该有帮助。

默认值为YES，允许视图控制器调整 它的滚动视图插入以响应所消耗的屏幕区域 状态栏、导航栏和工具栏或标签栏。如果你设置为 NO 想要自己管理滚动视图插图调整...

【讨论】：

当使用self.tabBarController.tabBar.hidden = YES;隐藏标签栏时，此解决方案也有效。