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:
我最终使用了一个额外的背景视图，添加在TableView之后，放在状态栏下:
self.CoverView = [[UIView alloc]init];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
self.CoverView.frame = CGRectMake(0,0,self.view.bounds.size.width,20);
}
self.CoverView.backgroundColor = [UIColor whiteColor];
self.TableView = [[UITableView alloc]initWithFrame:CGRectMake(0,
self.CoverView.bounds.size.height,XXX, YYY)];
[self.view addSubview:self.TableView];
[self.view addSubview:self.CoverView];
它不是很漂亮，但它是一个相当简单的解决方案，如果你需要使用xib-less视图，同时适用于IOS6和IOS7
如果你用编程的方式做事情，并且使用一个没有UINavigationController的UITableViewController，你最好的选择是在viewDidLoad中做以下事情:
斯威夫特3
self.tableView.contentInset = UIEdgeInsets(top: 20, left: 0, bottom: 0, right: 0)
早些时候,迅速
self.tableView.contentInset = UIEdgeInsetsMake(20.0f, 0.0f, 0.0f, 0.0f);
UITableViewController仍然会滚动到状态栏后面，但当滚动到顶部时，不会在状态栏下面。
适用于swift 3 - In viewDidLoad();
let statusBarHeight = UIApplication.shared.statusBarFrame.height
let insets = UIEdgeInsets(top: statusBarHeight, left: 0, bottom: 0, right: 0)
tableView.contentInset = insets
tableView.scrollIndicatorInsets = insets
这段代码:
1. 获取状态栏的高度
2. 为表视图的顶部提供一个与状态栏高度相等的内容插入。
3.为滚动指示器提供相同的插入，因此它出现在状态栏的下方。
对于那些像我一样不愿意在UIViewController中嵌入UITableViewController的人来说，试试这个:
一个自定义的UITableViewController子类可以附加一个掩码视图到tableView的父视图。在viewDidAppear上添加蒙版，并在viewWillDisappear上删除蒙版。
private var statusBarMaskView: UIView!
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
if let superview = self.tableView.superview {
self.statusBarMaskView = UIView(frame: CGRect.zero)
superview.insertSubview(self.statusBarMaskView, aboveSubview: self.tableView)
self.statusBarMaskView.backgroundColor = self.tableView.backgroundColor
// using a nice constraint layout library to set the frame
self.statusBarMaskView.pinTop(to: superview)
self.statusBarMaskView.pinLeft(to: superview)
self.statusBarMaskView.pinRight(to: superview)
self.statusBarMaskView.addHeightConstraint(with: 22.0)
////
}
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.statusBarMaskView.removeFromSuperview()
self.statusBarMaskView = nil
}
