搜索栏与iOS 11上的状态栏重叠 [英] Search bar overlaps with status bar on iOS 11

问题描述

我正在使用UISearchController和UISearchResultsController来实现搜索功能。

I am using a UISearchController and a UISearchResultsController to implement search functionality.

MySearchResultsController实现了UISearchResultsUpdating和UISearchBarDelegate：

MySearchResultsController implements UISearchResultsUpdating and UISearchBarDelegate:

override open func viewDidLoad() {
    super.viewDidLoad()
    self.edgesForExtendedLayout = [];
    self.automaticallyAdjustsScrollViewInsets = false;
}

我在tableHeader中的MyTableViewController中显示搜索栏，

I display the searchbar in the tableHeader like this in MyTableViewController:

- (void)viewDidLoad {
    [super viewDidLoad];

    self.searchController = [[UISearchController alloc] initWithSearchResultsController:self.searchResultsController];
    self.searchController.searchResultsUpdater = self.searchResultsController;
    self.searchController.searchBar.delegate = self.searchResultsController;
    self.searchController.searchBar.scopeButtonTitles = @[NSLocalizedString(@"SEARCH_SCOPE_TEMPERATURES", nil), NSLocalizedString(@"SEARCH_SCOPE_KNOWHOW", nil)];
    self.tableView.tableHeaderView = self.searchController.searchBar;
    self.definesPresentationContext = YES;
}

这在以前非常有效，但是在iOS 11下，搜索栏与状态重叠轻按一下即可看到它（请参见屏幕截图）。我尝试了许多其他方法来使其正确显示，但尚未找到解决方案。

This worked perfectly before, but under iOS 11 the search bar overlaps with the status bar as soon as I tap into it (see screenshots). I tried lots of different things to get it to display correctly but haven't found a solution yet.

推荐答案

我发现问题在于呈现视图控制器也设置了

I found that the problem was that the presenting view Controller also sets

override open func viewDidLoad() {
    super.viewDidLoad()
    self.edgesForExtendedLayout = [];
    self.automaticallyAdjustsScrollViewInsets = false;
}

我必须这样做，因为表视图实际上并没有完全扩展

I have to do this because the table view does not actually extend all the way to the top.

我在演示视图控制器中这样解决了这个问题：

I solved this like that in my presenting view Controller:

override open func viewDidLoad() {
    super.viewDidLoad()
    self.automaticallyAdjustsScrollViewInsets = false;
    if (@available(iOS 11.0, *)) {
        //NSLog(@"iOS 11.0");
    } else {
        self.edgesForExtendedLayout = UIRectEdgeNone;
        //NSLog(@"iOS < 11.0");
    }
}

似乎是iOS 11错误，或者至少是奇怪的行为……

Seems to be an iOS 11 bug, or at least an odd behavior…

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