iOS 表单键盘不消失

Question

我知道我必须打电话

- (BOOL)disablesAutomaticKeyboardDismissal {
    return NO;
}
//this dismiss keyboard on ios
- (BOOL) textViewShouldBeginEditing:(UITextView *)textView {
    [self.comments resignFirstResponder];
    return YES;
}

为了关闭表单上的键盘，我还知道我必须在导航 Controller 中调用 disablesAutomaticKeyboardDismissal(如果有的话)。

问题是:我以编程方式创建带有导航 Controller 的表单表:

UIStoryboard*  sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:[NSBundle mainBundle]];
SettingsViewController *settingsVC = [sb instantiateViewControllerWithIdentifier:@"settingsViewController"];
//add navigation controller 
UINavigationController *modalViewNavController= [[UINavigationController alloc] initWithRootViewController:settingsVC];
modalViewNavController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
modalViewNavController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:modalViewNavController animated:YES];

所以我没有用于表单的导航 Controller 类，在这种情况下如何关闭键盘？

我必须创建一个导航 View Controller 吗？

更新:::::::::::::::::::::::::::::::::::::::::::::::::

最终在 Storyboard 中创建一个导航 Controller 并在导航 Controller 的 View Controller 中调用 disablesAutomaticKeyboardDismissal，这解决了问题，但我仍然想知道如何在不创建导航 Controller 类的情况下执行此操作。

欢迎任何输入......

Answer 1

你能不能试试下面的代码；

- (void)viewDidLoad {
    [super viewDidLoad];

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

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