使 SearchBar 在导航栏中更高

Question

我尝试创建一个搜索栏，它现在工作正常，但我不知道如何让它稍微高一点，就在状态栏下面。搜索栏是以编程方式创建的，我使用了这段代码：

let searchController = UISearchController(searchResultsController: nil)




override func viewDidLoad() {
    super.viewDidLoad()

    searchController.searchResultsUpdater = self
    searchController.obscuresBackgroundDuringPresentation = false
    searchController.hidesNavigationBarDuringPresentation = false
    definesPresentationContext = true
    navigationItem.searchController = searchController
    navigationItem.hidesSearchBarWhenScrolling = false
}

Answer 1

你的意思是，你想要一个搜索栏放在导航栏的地方。如果是这种情况，请尝试在导航栏中添加搜索栏。

试试这个

var leftNavBarButton = UIBarButtonItem(customView:Yoursearchbar)
self.navigationItem.leftBarButtonItem = leftNavBarButton

你保持一个惰性的 UISearchBar 属性

lazy var searchBar:UISearchBar = UISearchBar(frame: CGRectMake(0, 0, 200, 20))

在viewDidLoad中

searchBar.placeholder = "Your placeholder"
var leftNavBarButton = UIBarButtonItem(customView:searchBar)
self.navigationItem.leftBarButtonItem = leftNavBarButton

如果你想使用故事板，只需将你的搜索栏拖动为出口，然后用你的出口搜索栏替换惰性属性

或简单地

// create the search bar programatically since you won't be
// able to drag one onto the navigation bar


searchBar = UISearchBar()  
searchBar.sizeToFit()


// the UIViewController comes with a navigationItem property
// this will automatically be initialized for you if when the
// view controller is added to a navigation controller's stack
// you just need to set the titleView to be the search bar

navigationItem.titleView = searchBar

使 SearchBar 在导航栏中更高

Make SearchBar higher in navigation bar

cocoa-touch

uinavigationbar

uisearchbar

uinavigationitem

uisearchcontroller