The first screen of my application is a UITableViewController without a navigation bar, which means that the content flows under the status bar so there's a lot of text collisions. I've adjusted both the properties for Under top bars and Adjust scroll view insets which do actually stop it from scrolling under, but at the cost of keeping the top of the table view under. I've attempted to set the UITableView frame to offset by 20 pixels, but it doesn't appear to take effect and as I currently need the app to be compatible with iOS 6 I can't jump to iOS 7 Storyboards to force autolayout to use the top height guide. Has anyone found a solution that works for both versions?

我尝试过的事情:设置edgesForExtendedLayout,在Storyboard中更改顶部栏下的设置和调整滚动视图,迫使框架到一个新的区域。

一图胜千言万语:


当前回答

我这样做的视网膜/非视网膜显示

BOOL isRetina = FALSE;

if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
    if ([[UIScreen mainScreen] scale] == 2.0) {
        isRetina = TRUE;
    } else {
        isRetina = FALSE;
    }
}

if (isRetina) {
    self.edgesForExtendedLayout=UIRectEdgeNone;
    self.extendedLayoutIncludesOpaqueBars=NO;
    self.automaticallyAdjustsScrollViewInsets=NO;
}

其他回答

我使用一个UISplitViewController与一个导航控制器和一个tableviewcontroller。在尝试了许多解决方案后,这对我来说很有效:

float systemVersion = [[[UIDevice currentDevice] systemVersion] floatValue];
if (systemVersion >= 7.0f) {

    // Move the view down 20 pixels
    CGRect bounds = self.view.bounds;
    bounds.origin.y -= 20.0;
    [self.navigationController.view setBounds:bounds];

    // Create a solid color background for the status bar
    CGRect statusFrame = CGRectMake(0.0, -20.0, bounds.size.width, 20);
    UIView* statusBar = [[UIView alloc] initWithFrame:statusFrame];
    statusBar.backgroundColor = [UIColor whiteColor];
    [statusBar setAlpha:1.0f];
    [statusBar setOpaque:YES];
    [self.navigationController.view addSubview:statusBar];
}

它类似于Hot Licks的解决方案,但将子视图应用到navigationController。

这将修复一个UITableViewController(没有任何神奇的数字)。我唯一不能让它修复的是如果你在打电话,在这种情况下,tableView的顶部被下推太多。如果有人知道如何解决这个问题,请告诉我们。

class MyTableViewController: UITableViewController {

    override func viewDidLoad() {
        super.viewDidLoad()    
        configureTableViewTop()
    }

    override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator) {
        super.viewWillTransitionToSize(size, withTransitionCoordinator: coordinator)
        coordinator.animateAlongsideTransition({ (context) -> Void in
            }, completion: { (context) -> Void in
                self.configureTableViewTop()
        })
    }

    func configureTableViewTop() { 
        tableView.contentInset.top = UIApplication.sharedApplication().statusBarFrame.height
    }
}

如果你还需要支持iOS 6,你必须有条件地把它下移。也就是说,在iOS 7中,你只需要将它向下移动20个点(通过帧操作或使用自动布局),而在iOS 6中,你可以不动它。我不相信你们能在IB中做这个,所以你们必须在代码中做。

EDIT

你可以在IB中,通过使用iOS6/iOS7增量。在iOS 7中设置你的位置,然后在iOS 6中设置Y为-20点。更多信息请参见这个SO问题。

我在ios 11中遇到了这个问题,但ios 8 - 10.3.3的布局是正确的。对于我的案例,我设置垂直空间约束为Superview。Top Margin代替Superview。顶部适用于ios 8 - 11。

我这样做的视网膜/非视网膜显示

BOOL isRetina = FALSE;

if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
    if ([[UIScreen mainScreen] scale] == 2.0) {
        isRetina = TRUE;
    } else {
        isRetina = FALSE;
    }
}

if (isRetina) {
    self.edgesForExtendedLayout=UIRectEdgeNone;
    self.extendedLayoutIncludesOpaqueBars=NO;
    self.automaticallyAdjustsScrollViewInsets=NO;
}