如何在iOS Obj-C中隐藏键盘触摸UITableView

Posted 2021-04-10

我是ios开发的新手。我想在TextField外面敲击时隐藏键盘。我的TextField在UITableView的一个牢房里。

我试图关注其中的一些链接，但没有任何成功 -

Dismiss keyboard on touch anywhere outside UITextField

Dismiss keyboard by touching background of UITableView

Hide keyboard when scroll UITableView

我试图找到最简单的方法。提前致谢

答案

这是解除键盘的最简单方法

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard)];
    [tableView addGestureRecognizer:gestureRecognizer];
}
- (void)hideKeyboard
{
    [self.view endEditing:YES];
}

另一答案

这不是关于触摸，只是在滚动时工作

TableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;

也有

UIScrollViewKeyboardDismissModeInteractive //键盘跟随拖动触摸屏幕，并可能再次向上拉以取消关闭

另一答案

添加委托类UITextFieldDelegate

-(BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

另一答案

您需要添加一个UITapGestureRecogniser并将其分配给视图，然后在其选择器的文本字段上调用resign first responder。

另一答案

你可以使用Tap手势来隐藏键盘。

- (void) tapGesture : (UIGestureRecognizer *) gestureRecognizer {   
    for (UIView *subview in view.subviews) {
        if([subview isKindOfClass : [UITextField class]] ) {
            UITextField *tf = (UITextField *) subview;
            [tf resignFirstResponder];
        } 
    }
}

另一答案

尝试此代码在viewDidLoad中编写以下代码，并在.h文件中添加UIGestureRecognizerDelegate。

    UITapGestureRecognizer *singleFingerTap =
[[UITapGestureRecognizer alloc] initWithTarget:self
                                        action:@selector(handleSingleTap:)];
[singleFingerTap setDelegate:self];
[self.view addGestureRecognizer:singleFingerTap];

// 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];

键盘代表出现和失踪

- (void)keyboardDidShow: (NSNotification *) notif{
 // Do something here
  tblview.tag = 1;
}
- (void)keyboardDidHide: (NSNotification *) notif{
// Do something here
tblview.tag = 0;
}

用于隐藏键盘的UITapGestureRecognizer事件函数

- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer {
   blview.tag = 0;
  [self.view endEditing:YES];
 }

UIGestureRecognizer委托

-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
if(tblview.tag == 1){
    return TRUE;
}
else{
    return FALSE;
   }
}

另一答案

我将解决方案分为两部分：

要在tableview / collectionview上关闭键盘，请点击：

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

（不要忘记cancelsTouchesInView设置为NO以获取tableview / collection视图的触摸事件）

要在滚动时关闭键盘（因为tableview / collectionview是UIScrollView的子类）：

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
     [self.view endEditing:YES];
}

希望它对某人有帮助。

另一答案

这会对你有所帮助..

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

另一答案

最简单的方法是在viewDidLoad中分配一个tap Gesture，然后隐藏键盘

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard)];
    [_tableView addGestureRecognizer:gestureRecognizer];
}
- (void)hideKeyboard
{
    [self.view endEditing:YES];
}

或者在github上你肯定找到了一个隐藏键盘的库