swift - 如何更改导航栏(UISearchController)的文本？

Question

我用 UISearchController 创建了一个导航栏。

下面是我的代码:

@IBAction func showSearchController(sender: AnyObject) {
    let searchController = UISearchController(searchResultsController: searchResultController)
    searchController.searchBar.delegate = self
    /*
    searchController.searchBar.placeholder = "hhhhhhhhhhh"
    searchController.navigationItem.title = "hhhhhhhhhhh"
    searchController.navigationController?.navigationBar.topItem?.title = "hhhhhhhh"    -->i try these codes for to change*/

    self.presentViewController(searchController, animated: true, completion: nil)
}

但我无法更改文本。

Answer 1

var searchTextField = searchController.searchBar.valueForKey("_searchField") as! UITextField
searchTextField.placeholder = "Your Custom Text"

使用它来更改您的占位符文本