模态对话框不会关闭键盘

Question

我遇到了一个问题,即离开时,键盘不会被解雇UITextField或UITextView在UIModalPresentationFormSheet.另外,我创建了一个大按钮作为视图的背景,因此如果用户点击字段之外它会被触发.我在常规视图控制器中使用相同的代码,它按预期工作.在模态视图控制器中它什么都不做.任何建议,将不胜感激.

- (BOOL)textFieldShouldReturn:(id)sender {  
 [titleTextField resignFirstResponder];
 return YES;
}

- (BOOL)textViewShouldReturn:(id)sender {  
 [synopsisTextView resignFirstResponder];
 return YES;
}

- (IBAction)textFieldDoneEditing:(id)sender {  
 [sender resignFirstResponder];
} 

- (IBAction)textViewDoneEditing:(id)sender {  
 [sender resignFirstResponder];
} 

- (IBAction)backgroundClick:(id)sender {  
 [titleTextField resignFirstResponder];
 [synopsisTextView resignFirstResponder];
}

Answer 1

覆盖disablesAutomaticKeyboardDismissal如下返回NO修复了我的同样问题.您应该将此代码放入视图控制器,从中启动键盘:

- (BOOL)disablesAutomaticKeyboardDismissal {
    return NO;
}

另外,如果您想获得详细说明,请查看此SO问题.

Answer 2

对于那些遇到问题的人UINavigationController,我认为有一个比一个类别更好的解决方案UIViewController.我们应该改变行为UINavigationController来询问它topViewController(在我看来,这就是所有ViewController容器应该如何处理它).

@implementation UINavigationController (DelegateAutomaticDismissKeyboard)
- (BOOL)disablesAutomaticKeyboardDismissal {
    return [self.topViewController disablesAutomaticKeyboardDismissal];
}