Iphone 在UITextView上失去焦点时隐藏键盘

所以我有一个UITextView，我用它来允许用户提交一些文本

我的问题是，我似乎不知道如何允许用户通过点击离开UITextView来“取消”。

在我的视图中：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];

    // pass touches up to viewController
    [self.nextResponder touchesBegan:touches withEvent:event];
}

在我的viewcontroller中：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [[event allTouches] anyObject];
    if (keyboardShown && [touch view] != self.TextView) 
    {
         [self.TextView resignFirstResponder];
    }
    [super touchesBegan:touches withEvent:event];
}

- (void)keyboardWasShown:(NSNotification*)aNotification
{    
        keyboardShown = YES;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [[event allTouches] anyObject];
    if ([myTextView isFirstResponder] && [touch view] != myTextView) {
        [myTextView resignFirstResponder];
    }
    [super touchesBegan:touches withEvent:event];
}

@property (weak, nonatomic) IBOutlet UITextView *yourTextView;

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    if ([self.yourTextView isFirstResponder]) {
      [self.yourTextView resignFirstResponder];
    }
}

简化： 以下插座在您的xib中正确连接

    IBOutlet UITextView *myTextView;

在视图控制器中使用此选项：

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [[event allTouches] anyObject];
    if (keyboardShown && [touch view] != self.TextView) 
    {
         [self.TextView resignFirstResponder];
    }
    [super touchesBegan:touches withEvent:event];
}

- (void)keyboardWasShown:(NSNotification*)aNotification
{    
        keyboardShown = YES;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [[event allTouches] anyObject];
    if ([myTextView isFirstResponder] && [touch view] != myTextView) {
        [myTextView resignFirstResponder];
    }
    [super touchesBegan:touches withEvent:event];
}

@property (weak, nonatomic) IBOutlet UITextView *yourTextView;

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    if ([self.yourTextView isFirstResponder]) {
      [self.yourTextView resignFirstResponder];
    }
}

---

点击文本视图之外的视图控制器视图，第一响应者将退出，关闭键盘。

我在使用UITableView、搜索栏和键盘时经常使用的另一种方法是，我认为您可以将其应用于文本字段

UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard)];
[self.tableView addGestureRecognizer:gestureRecognizer];
gestureRecognizer.cancelsTouchesInView = NO;  // this prevents the gesture recognizers to 'block' touches
[gestureRecognizer release];

然后，这里是一个简单的回调函数

- (void)hideKeyboard {
    [myTextField resignFirstResponder];
}

---

希望它能有所帮助

我想要一个版本，可以从任何视图辞职，而不需要为每个视图指定具体的出口。。这是我的解决方案，我把它放在我的一个标准容器视图中

它使用的是MonoTouch C#，不过如何将其转换为Objective-C应该是显而易见的

    private void findAndResignFirstResponder(UIView node=null) {
        if (node == null) { return; }
        if (node.IsFirstResponder) {
            node.ResignFirstResponder();
            return;
        }

        foreach (UIView view in node.Subviews) {
            findAndResignFirstResponder(node:view);
        }
    }

    private bool haveDrag = false;
    public override void TouchesEnded(NSSet touches, UIEvent evt) {
        if (!haveDrag) {
            UITouch touch = (UITouch)evt.AllTouches.AnyObject;
            if (!touch.View.CanBecomeFirstResponder) {
                this.findAndResignFirstResponder(this);
                Console.WriteLine("resign");
            }
        }
        base.TouchesEnded (touches, evt);
    }
    public override void TouchesMoved(NSSet touches, UIEvent evt) {
        haveDrag = true;
        base.TouchesMoved (touches, evt);
    }

    public override void TouchesBegan(NSSet touches, UIEvent evt) {
        haveDrag = false;
        base.TouchesBegan (touches, evt);
    }

---

这里有一个更好的解决方案，它不依赖于插座，并且可以处理控制器中任意数量的UITextField对象

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [[event allTouches] anyObject];

    if (![[touch view] isKindOfClass:[UITextField class]]) {
        [self.view endEditing:YES];
    }
    [super touchesBegan:touches withEvent:event];
}

我的方法是

• 在ViewController的@界面中添加对TextView的引用：

  - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
  
      UITouch *touch = [[event allTouches] anyObject];
      if (keyboardShown && [touch view] != self.TextView) 
      {
           [self.TextView resignFirstResponder];
      }
      [super touchesBegan:touches withEvent:event];
  }
  
  - (void)keyboardWasShown:(NSNotification*)aNotification
  {    
          keyboardShown = YES;
  }
  

  - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
  
      UITouch *touch = [[event allTouches] anyObject];
      if ([myTextView isFirstResponder] && [touch view] != myTextView) {
          [myTextView resignFirstResponder];
      }
      [super touchesBegan:touches withEvent:event];
  }
  

  @property (weak, nonatomic) IBOutlet UITextView *yourTextView;
  

  - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
  {
      if ([self.yourTextView isFirstResponder]) {
        [self.yourTextView resignFirstResponder];
      }
  }
  

• 在ViewController的@implementation中重写此方法：

  - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
  
      UITouch *touch = [[event allTouches] anyObject];
      if (keyboardShown && [touch view] != self.TextView) 
      {
           [self.TextView resignFirstResponder];
      }
      [super touchesBegan:touches withEvent:event];
  }
  
  - (void)keyboardWasShown:(NSNotification*)aNotification
  {    
          keyboardShown = YES;
  }
  

  - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
  
      UITouch *touch = [[event allTouches] anyObject];
      if ([myTextView isFirstResponder] && [touch view] != myTextView) {
          [myTextView resignFirstResponder];
      }
      [super touchesBegan:touches withEvent:event];
  }
  

  @property (weak, nonatomic) IBOutlet UITextView *yourTextView;
  

  - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
  {
      if ([self.yourTextView isFirstResponder]) {
        [self.yourTextView resignFirstResponder];
      }
  }
  

非常简单

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self.view endEditing:YES];
}

---

这是一篇老文章，但我在实现这个解决方案时发现了一些更简单的东西（当时可能没有）

[self.myTextView endEditing:是]

我使用的是UITableView，所以我将这一行放在didSelectRowatineXpath:方法上。 到目前为止，一切都很好

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    var touch = event.allTouches()?.anyObject() as UITouch

    if( textfield.isFirstResponder() && touch.view != textfield) {
        textfield.resignFirstResponder()
        NSLog("Resigning first responder since touches began outside")
    }

    super.touchesBegan(touches, withEvent: event)
}

---

奥霍洛布的回答对我也有用。这是简单的swift等价物

这是swift 3代码

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        if textField.isFirstResponder && touch.view != textField {
            textField.resignFirstResponder()
        }
    }
    super.touchesBegan(touches, with: event)
}

override func touchsbegind（touch:Set，带有事件：UIEvent？）{
如果让触摸=先触摸{
如果textField.isFirstResponder&&touch.view！=textField{
textField.resignFirstResponder（）辞职
}
}
super.touchesbeated（touches，with:event）
}

如何将touchesbearth方法添加到我已创建的UIViewController的self.view子视图的UITableView中。我是否必须将UITableView子类化，即@interface TouchableTableView:UITableView？或者，是否有一种更简单的方法来完成它，而不必子类化UITableView？如果这对他们不起作用，我很乐意帮助他们。。只需留下评论或开始一个新问题并在此处链接即可。ohhorob，如果我们点击任何其他考虑中的渠道，此解决方案不起作用，您能帮我吗？以防有人仍在查看此。。。我有一个问题，我的根视图的大部分被UIScrollView覆盖。如果我直接在UIView上点击边距，键盘将关闭，但如果我点击UIScrollView，键盘将不会关闭。如果使用ViewController，您可以添加到[self view]。不，它不会工作，表格和滚动视图有它们自己的交互。这个答案是最好的。当我将tapGestureRecognizer添加到self.view时，它也适用于滚动视图中的一组文本字段。这解决了问题。这里的关键是第三行，它允许其他触摸事件也发生（通过不阻塞）。它也适用于表视图。（在我的例子中，搜索栏位于表视图单元格内，这不允许有出口。在这种情况下，您可以执行

self.view.endEditing（true）

而不是辞职FirstResponder。不要认为你需要检查UITextField-即使你不加区别地编辑：在文本字段之间切换仍然有效，键盘也不会启动