iOS 7 UISearchDisplayController搜索栏在搜索时重叠状态栏

Question

我正在为iOS 7更新我的应用程序,并且我正在调整所有视图以考虑新的透明状态栏(我的应用程序仍将使用不透明的导航栏).

在每个视图中调整状态栏相对容易,除了我在一个视图控制器中连接到UISearchDisplayController的UISearchBar时遇到的一个主要问题.

搜索栏似乎正常显示,如下所示:

搜索栏http://imageshack.us/a/img163/9128/06vx.png

问题是,一旦我开始搜索,导航栏就会消失(应该如此),但其他一切也会向上移动以重叠状态栏:

破碎的搜索栏http://imageshack.us/a/img11/8237/corh.png

这似乎没有按预期工作,因为屏幕变暗发生在搜索栏下方20个像素处,搜索栏应该在此处结束.

在iOS 7中是否有针对此的内置解决方案？每次用户开始和结束搜索时,我不必为每个视图手动调整帧.

谢谢!

Answer 1

将以下行放在viewDidLoad中为我修复它:

self.edgesForExtendedLayout = UIRectEdgeNone;

Answer 2

感谢您带领我走上正轨!您的解决方案有效,除了它只移动了搜索栏的框架,使我的其他子视图处于错误的位置.我唯一改变的是在视图中移动所有子视图,并为其制作动画.

谢谢!

-(void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        CGRect statusBarFrame =  [[UIApplication sharedApplication] statusBarFrame];
        [UIView animateWithDuration:0.25 animations:^{
            for (UIView *subview in self.view.subviews)
                subview.transform = CGAffineTransformMakeTranslation(0, statusBarFrame.size.height);
        }];
    }
}

-(void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller {
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        [UIView animateWithDuration:0.25 animations:^{
            for (UIView *subview in self.view.subviews)
                subview.transform = CGAffineTransformIdentity;
        }];
    }
}

Answer 3

您可能没有使用半透明导航栏？如果是这样,这将解决它.

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
    self.navigationController.navigationBar.translucent = YES;
}

- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller {
    self.navigationController.navigationBar.translucent = NO;
}

Answer 4

只需将以下代码放入- (void)ViewDidLoad即可.它适用于iOS 7及更高版本

if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
    self.edgesForExtendedLayout = UIRectEdgeNone;
}

更新:

if(SYSTEM_VERSION_GREATER_THAN(@"6.1")) {
    self.edgesForExtendedLayout = UIRectEdgeNone;
}

Answer 5

这似乎描述了我遇到的问题; 希望它会帮助我以前的位置.

1. 将已添加到UIViewController/UITablewViewController的SearchDisplayController子类化,

2. 在其实现中添加以下内容:

    - (void)setActive:(BOOL)visible animated:(BOOL)animated
   {
       [super setActive:visible animated:animated];
   
       [self.searchContentsController.navigationController setNavigationBarHidden: NO animated: NO];
   
       CGRect frame = self.searchResultsTableView.frame;
       frame.origin.y = CGRectGetHeight(self.searchContentsController.navigationController.navigationBar.frame);
   
       frame.size.height = CGRectGetHeight(frame) - CGRectGetMinY(frame);
   
       self.searchResultsTableView.frame = frame;
   
       frame = self.searchBar.frame;
       self.searchBar.frame = frame;
   
       [self.searchContentsController.view insertSubview:self.searchBar aboveSubview:self.searchResultsTableView];
   
   }
   

Answer 6

我在下面的代码中解决了这个问题.

    - (void) viewDidLayoutSubviews
{
         if(floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1)
        {
            CGRect viewBounds = self.view.bounds;
            CGFloat topBarOffset = self.topLayoutGuide.length;
            viewBounds.origin.y = topBarOffset * -1;
            self.view.bounds = viewBounds;
        }
}

Answer 7

我想也许将它添加到viewDidLoad会有所帮助:

if([self respondsToSelector:@selector(setEdgesForExtendedLayout:)])
{
    self.edgesForExtendedLayout = UIRectEdgeNone;

}