在导航栏取消按钮

在导航栏取消按钮

本文介绍了搜索栏 - 在导航栏取消按钮的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我在做导航栏搜索栏。当我编辑我没有在导航栏右侧的取消按钮。

试过:

  FUNC searchBarTextDidBeginEditing(搜索栏:的UISearchBar){    VAR barButton =的UIBarButtonItem(标题:取消,风格:UIBarButtonItemStyle.Done,目标:自我,行动​​:)
    self.navigationItem.rightBarButtonItem = barButton
}

编辑:

我添加了搜索栏导航栏是这样的:

 懒VAR搜索栏:=的UISearchBar的UISearchBar(帧:CGRectMake(0,0,300,20))        sea​​rchBar.placeholder =Hľadať
        sea​​rchBar.barStyle = UIBarStyle.BlackTranslucent
        VAR leftNavBarButton =的UIBarButtonItem(customView:搜索栏)
        self.navigationItem.leftBarButtonItem = leftNavBarButton


解决方案

做到这一点是这样的:

  FUNC searchBarShouldBeginEditing(搜索栏:的UISearchBar) -  GT;布尔{
    VAR cancelSearchBarButtonItem =的UIBarButtonItem(标题:取消,风格:UIBarButtonItemStyle.Plain,目标:自我,动作:cancelBarButtonItemClicked)
    self.navigationItem.setRightBarButtonItem(cancelSearchBarButtonItem,动画:真)
    返回true
}

而在取消处理程序:

  FUNC searchBarCancelButtonClicked(搜索栏:的UISearchBar){
    //关闭键盘
    sea​​rchBar.resignFirstResponder()    //如果您使用的是搜索控制器
    // self.searchDisplayControllerCustom.setActive(假,动画:真)    //删除取消按钮
    self.navigationItem.setRightBarButtonItem(零,动画:真)
}FUNC cancelBarButtonItemClicked(){
    self.searchBarCancelButtonClicked(self.searchBar)
}

和设置正确的颜色导航栏标题文字:

  //这将设置文本颜色为应用程序的所有导航栏
//在启动应用程序的委托执行此操作
UINavigationBar.appearance()titleTextAttributes = [NSForegroundColorAttributeName:UIColor.whiteColor()]

和添加代理:

  searchBar.delegate =自

I'm doing Search Bar in Navigation Bar. When I'm editing I don't have Cancel Button on right side of navigation Bar.

Tried:

func searchBarTextDidBeginEditing(searchBar: UISearchBar) {

    var barButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Done, target: self, action: "")
    self.navigationItem.rightBarButtonItem = barButton
}

EDIT:

I added search bar to nav bar like this:

lazy var searchBar:UISearchBar = UISearchBar(frame: CGRectMake(0, 0, 300, 20))

        searchBar.placeholder = "Hľadať"
        searchBar.barStyle = UIBarStyle.BlackTranslucent
        var leftNavBarButton = UIBarButtonItem(customView:searchBar)
        self.navigationItem.leftBarButtonItem = leftNavBarButton
解决方案

Do it in this way:

func searchBarShouldBeginEditing(searchBar: UISearchBar) -> Bool {
    var cancelSearchBarButtonItem = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Plain, target: self, action: "cancelBarButtonItemClicked")
    self.navigationItem.setRightBarButtonItem(cancelSearchBarButtonItem, animated: true)
    return true
}

And in the "Cancel" handler:

func searchBarCancelButtonClicked(searchBar: UISearchBar) {
    // closes the keyboard
    searchBar.resignFirstResponder()

    // If you are using a search controller
    // self.searchDisplayControllerCustom.setActive(false, animated: true)

    // remove the cancel button
    self.navigationItem.setRightBarButtonItem(nil, animated: true)
}

func cancelBarButtonItemClicked() {
    self.searchBarCancelButtonClicked(self.searchBar)
}

And set the correct color for the navigation bar title text:

// This sets the textcolor for all navigation bars in the app
// Do this in the app delegate on startup
UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName : UIColor.whiteColor()]

And add the delegate:

searchBar.delegate = self

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08-12 14:54