检测不在 UITextField 上的触摸（隐藏键盘）

Question

我有一些 UITextFields 可以打开键盘。

我的问题是，如何检测屏幕上不在任何 UITextField 中的触摸

我需要的伪代码：

if(screen is touched)
   if(touched view is NOT a UITextField)
      [self.view endEditing:YES];

有没有简单的方法可以做到这一点？或者在未触摸 UITextField 时隐藏键盘的另一种更简单的方法？

谢谢！

Answer 1

您实际上可以使用 touches begind 方法。

查看文档here。

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    view.endEditing(true)
}

来自文档-

If you override this method without calling super (a common use pattern), you must also override the other methods for handling touch events, if only as stub (empty) implementations.

Answer 2

只需将 UITapGestureRecognizer 添加到您的视图并使用 [self.view endEditing:YES];

- (void)addTapGesutre {
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]  initWithTarget:self
                                                                             action:@selector(handleTapGesture:)];
    tapGesture.numberOfTapsRequired = 1;
    [self.view addGestureRecognizer:tapGesture];
}

- (void)handleTapGesture:(UITapGestureRecognizer *)tap {
    if (tap.state == UIGestureRecognizerStateEnded) {
        [self keyboardDismiss];
    }
}

- (void)keyboardDismiss {
    [self.view endEditing:YES];
}

检测不在 UITextField 上的触摸（隐藏键盘）

Detecting a touch NOT on a UITextField (to make keyboard hide)

keyboard

objective-c

ios