点击任何 UIControl 对象时关闭键盘 [英] dismiss keyboard on tapping on any UIControl objects

问题描述

我有多个键盘触发元素...UITextField、UITextView 和 UISearchBar.

I have multiple keyboard provoking elements...UITextField, UITextView and UISearchBar.

我想在触摸除键盘和当前活动的文本编辑"元素之外的任何地方时关闭 UIKeyboard.

I would like to dismiss UIKeyboard upon touch anywhere except keyboard and currently active "text editing" element.

我已经实施了

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
    searchBar.resignFirstResponder()
    name.resignFirstResponder() //UITextField
    notes.resignFirstResponder() //UITextView
    self.view.endEditing(true)
}

如果用户点击惰性"元素...背景或 userDisabledView...，这会起作用...但我的大部分视图都是由活动"元素组成的，例如 UITableView 和 UIButtons...

This works if user taps on an "inert" element...background or userDisabledView... but most of my View is made up of "active" elements like UITableView and UIButtons...

有没有办法让这一切成为可能，无论在何处进行点击.

Is there a way to make this possible, regardless where the tap is made.

我所知道的唯一方法是使用一个大的不可见按钮，每当 UIKeyboard 出现时，它就会在视图上滑动，它调用 self.view.endEditing(true)，然后缩回到屏幕外.

The only way I know of is to use a large invisible button that slides over the view whenever UIKeyboard is presented, which calls self.view.endEditing(true), then retracts to offscreen.

有什么帮助吗?

推荐答案

您可以为视图内的每个控件附加点击手势， tapGestRecog.cancelsTouchesInView=NO 防止点击识别器成为唯一一个捕捉所有点击然后在 tapAction 上退出键盘的识别器.

首先在您的 viewDidLoad 中，添加键盘通知:-

First in your viewDidLoad, add keyboard notification:-

// Listen for keyboard appearances and disappearances
[[NSNotificationCenter defaultCenter] addObserver:self 
                                         selector:@selector(keyboardDidShow:)
                                             name:UIKeyboardDidShowNotification
                                           object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(keyboardDidHide:)
                                             name:UIKeyboardDidHideNotification
                                           object:nil];

现在设置一个 BOOL 值，以设置一个值是否存在键盘

Now set a BOOL value , to set a value whether keyboard is present or not

- (void)keyboardDidShow: (NSNotification *) notif{
     isKeyboardPresent=TRUE;
    // Do something here
}

- (void)keyboardDidHide: (NSNotification *) notif{
     isKeyboardPresent=False;
    // Do something here
}

现在，为所有控件添加点击手势

Now, add tap gesture to all your controls

for(UIView *vw in [self.view subviews])
     {
         UITapGestureRecognizer *tapGestRecog = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(controlTapAction)];
         tapGestRecog.delegate=self;
         [tapGestRecog setNumberOfTapsRequired:1];
         tapGestRecog.cancelsTouchesInView = NO;
         [vw addGestureRecognizer:tapGestRecog];

     }
-(IBAction) controlTapAction
{
  if(isKeyboardPresent)
   {
       [self.view endEditing:TRUE];
  } 
}

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