UISearchBar 中未显示取消按钮

Question

我有UICollectionView。单击 UINavigationBar 中的搜索按钮后，我将 UISearchController 的 searchbar 添加为 UINavigationItem 的标题视图。对于 iPhone 它工作正常。对于 iPad，cancel 按钮未显示。搜索栏单独占据了整个宽度。

谁能帮我解决这个问题？。提前致谢。

Answer 1

试试这个。添加显示取消按钮的复选标记。

Answer 2

iOS7 添加到导航时不显示取消按钮 bar.You 可以像这样将搜索栏放在另一个视图中。

UISearchBar *searchBar = [UISearchBar new];
searchBar.showsCancelButton = YES;
[searchBar sizeToFit];
UIView *viewForSearchBar = [[UIView alloc]initWithFrame:searchBar.bounds];
[viewForSearchBar addSubview:searchBar];
self.navigationItem.titleView = viewForSearchBar;

Answer 3

我遇到了同样的问题，在 iPhone 上搜索取消显示良好，但在 iPad 上却没有。

将 UISearchBar 包裹在另一个 UIView 中的解决方法对我来说效果不佳，因为它具有不同的外观和错误的旋转宽度。

我的解决方案很简单 - 使用不带取消的搜索，并将取消添加为 UIBarButtonItem。

Answer 4

Swift 版本：-

我尝试了@Nikita Khandelwal 方法，但它仍然不适合 ipad 视图。这是 swift 代码，已作为更正答案给出：-

let searchBar: UISearchBar = UISearchBar()
searchBar.showCancelButton = true
searchBar.placeholder = "Search Your Job Title"
searchBar.fitToSize()
searchBar.delegate = self //do not need if you delegate searchBar
let viewForSearchBar: UIView = UIView(frame: searchBar.bounds)
viewForSearchBar.addSubview(searchBar)
self.navigationItem.titleView = viewForSearchBar

********* 但还有另一种方法可以正确设置取消按钮并适合视图：-

将搜索栏设置为导航栏标题视图:-

let searchBar: UISearchBar = UISearchBar()
searchBar.showCancelButton = true
searchBar.placeholder = "Search Your Job Title"
searchBar.delegate = self //do not need if you delegate searchBar
self.navigationItem.titleView = searchBar

将 Bar 按钮拖放到视图控制器的右侧并将其命名为 Cancel。

然后将该按钮连接到此函数：-

@IBAction func iPadCancelButton(sender: AnyObject) {
       UIApplication.sharedApplication().sendAction("resignFirstResponder", to:nil, from:nil, forEvent:nil)
      self.dismissViewControllerAnimated(true, completion: nil)
}

Answer 5

Added rightBarButtonItem with selector will work fine for me. And adding searchBar inside view before setting to navigation title view was not showing properly.
Code:- 
self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.plain, target: self, action: #selector(self.dismissView))
func dismissView() {
        if self.controller?.navigationController?.popViewController(animated: true) == nil {
            self.controller?.dismiss(animated: true, completion: nil)
        }
    }

Answer 6

根据苹果文档 setShowsCancelButton

Cancel buttons are not displayed for apps running on iPad, even when you specify YES for the showsCancelButton parameter.

我不确定替代品，但这就是苹果为我们提供的。

Answer 7

对于使用Xcode11构建的iOS13，我需要手动设置取消按钮上的显示值，具体取决于搜索控制器是否可见

UISearchBar 中未显示取消按钮

Cancel button is not shown in UISearchBar

objective-c

uisearchbar

ios

uisearchcontroller