解除从UIScrollView NumberPad键盘

问题描述：

我有一个应用程序与UIScrollView作为UIView的子视图添加。此滚动视图有一个键盘类型设置为numberPad的文本框。现在的问题是，我想关闭键盘，当我点击滚动视图中的任何其他地方。我怎样才能做到这一点 ... ？解除从UIScrollView NumberPad键盘

答

只需在触摸处理程序中调用textField的resignFirstResponder即可。

 
(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { 
    [myTextField resignFirstResponder]; 
}

thanx的解决方案..我一直在努力很长一段时间做这样的事情，它并没有让我觉得这很简单 – 2011-04-01 07:52:26

答

当我加入了手势的UIScrollView一个子类，我是有在我看来树的各种手势相互干扰，如能够点击子视图，滚动视图的问题，并有键盘在任何情况下都会关闭。我想出了这个解决方案，可以从UIScrollView或UIViewController的超类设置。

DismissKeyboardTapGesture类使用ARC，可与视图下的任何文本字段一起使用，并且不会从按钮等子视图中接受任何点击。还利用iOS7滚动效果来关闭键盘。

从UISScrollView超设置：

_dismissKeyboard = [[DismissKeyboardTapGesture alloc] initWithView:self];

或UIViewController中：

_dismissKeyboard = [[DismissKeyboardTapGesture alloc] initWithView:self.view];

这里是类：

@interface DismissKeyboardTapGesture : NSObject <UIGestureRecognizerDelegate> 

@end 

@implementation DismissKeyboardTapGesture 

- (id)initWithView:(UIView *)view 
{ 
    self = [super init]; 
    if (self) { 
     UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)]; 
     singleTap.cancelsTouchesInView = NO; 
     singleTap.delegate = self; 
     [view addGestureRecognizer:singleTap]; 

     if ([view respondsToSelector:@selector(setKeyboardDismissMode:)]) { 
      // Bonus effect to dismiss keyboard by scrolling 
      ((UIScrollView *)view).keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive; 
     } 
    } 
    return self; 
} 

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer 
{ 
    // Don't stop any existing gestures in our view from working 
    if (otherGestureRecognizer.view == gestureRecognizer.view) { 
     return YES; 
    } 
    return NO; 
} 

- (void)singleTap:(UIGestureRecognizer*)gestureRecognizer 
{ 
    // Close keyboard for any text edit views that are children of the main view 
    [gestureRecognizer.view endEditing:YES]; 
} 

@end

解除从UIScrollView NumberPad键盘

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