ios - 触摸导航栏时隐藏键盘

Question

我有UITabBarController四个相关的观点。在其中一个视图中，有一个文本视图，它只为navigationbar: 我想做的是在navigationbar触摸时隐藏键盘。我怎样才能做到这一点？我应该重写的touchesBegan:方法UINavigationBar吗？

编辑

---

我发现这样做的最好方法是添加一个UITapGestureRecognizer

UITapGestureRecognizer* tapRecon = [[UITapGestureRecognizer alloc]
                                    initWithTarget:self action:@selector(navigationBarTap:)];
tapRecon.numberOfTapsRequired = 1;
[self.navigationController.navigationBar addGestureRecognizer:tapRecon];

调用方法

- (void)navigationBarTap:(UIGestureRecognizer*)recognizer { 
     [self.view endEditing:YES]; 
}

Answer 1

UITapGestureRecognizer* tapRecon = [[UITapGestureRecognizer alloc]
                                    initWithTarget:self action:@selector(navigationBarTap:)];
tapRecon.numberOfTapsRequired = 1;
[self.navigationController.navigationBar addGestureRecognizer:tapRecon];


- (void)navigationBarTap:(UIGestureRecognizer*)recognizer {
     [self.view endEditing:YES];

    // OR

    for (id view in self.view.subviews) {
        if ([view isKindOfClass:[UITextView class]] || [view isKindOfClass:[UITextField class]]) {
            [view resignFirstResponder];
        }
    }
}

愿这对你有帮助

Answer 2

在外部单击时，您可以使用此快速扩展来关闭键盘。用户可以点击导航栏或 viewcontroller 视图。

只需在 UIViewController 中调用一次hideKeyboardWhenTappedAround()

extension UIViewController {
    func hideKeyboardWhenTappedOutsides() {
       let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboard(_:)))
       tap.cancelsTouchesInView = false
       // On viewcontroller view
       view.addGestureRecognizer(tap)
       // On navigationcontroller view
       self.navigationController?.view.addGestureRecognizer(tap)
}

@objc func dismissKeyboard(_ sender: UITapGestureRecognizer) {
    view.endEditing(true)
    if let navController = self.navigationController {
        navController.view.endEditing(true)
    }
}

}

Answer 3

未测试。将点击手势添加到 UINavigationbar 和手势动作以辞职响应者。

 UITapGestureRecognizer *gestureRecognizer=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(hideKeyboard)];
    gestureRecognizer.numberOfTapsRequired=1;
    gestureRecognizer.cancelsTouchesInView = NO;
    [UInavigationbar addGestureRecognizer:gestureRecognizer];
    [gestureRecognizer release];

行动：

[Textfield resignfirstresponder]

Answer 4

在您的 touchesBegan 方法中，您可以 resignFirstResponder 使键盘消失。希望这会有所帮助，吉姆欢呼。

Answer 5

// 此方法将在导航到其他视图之前调用...

-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:YES];
    [yourTextField resignFirstResponder];
}

// 这将在导航到其他屏幕之前退出键盘..

我希望这能帮到您。