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

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
    }
}

其他回答

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;
}

在你的故事板上选择UIViewController,取消选中顶部栏下的扩展边。 为我工作。 : )

请注意:这适用于以下配置:

屏幕顶部没有导航栏(表视图满足状态栏) 表视图不可滚动

如果以上两个要求不满足,您的里程可能会有所不同。

最初的发布

我以编程方式创建了我的视图,这最终为我工作:

- (void) viewDidLayoutSubviews {
    // only works for iOS 7+
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        CGRect viewBounds = self.view.bounds;
        CGFloat topBarOffset = self.topLayoutGuide.length;

        // snaps the view under the status bar (iOS 6 style)
        viewBounds.origin.y = topBarOffset * -1;

        // shrink the bounds of your view to compensate for the offset
        viewBounds.size.height = viewBounds.size.height + (topBarOffset * -1);
        self.view.bounds = viewBounds;
    }
}

来源(在第39页底部的topLayoutGuide部分)。

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。

- (void) viewDidLayoutSubviews {
    if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
        self.navigationController.navigationBar.barStyle = UIBarStyleBlackOpaque;
        if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
            self.edgesForExtendedLayout = UIRectEdgeNone;   // iOS 7 specific
        CGRect viewBounds = self.view.bounds;
        CGFloat topBarOffset = self.topLayoutGuide.length;
        viewBounds.origin.y = topBarOffset * -1;
        self.view.bounds = viewBounds;
        self.navigationController.navigationBar.translucent = NO;
    }
}

https://developer.apple.com/library/ios/documentation/userexperience/conceptual/TransitionGuide/SupportingEarlieriOS.html#//apple_ref/doc/uid/TP40013174-CH14-SW1