iOS UITextField-解雇自定义inputView [英] iOS UITextField- dismissing custom inputView

问题描述

我正在为某些文本字段使用自定义inputView，但是当我在文本字段上调用resignFirstResponder时，自定义输入视图不会忽略...任何建议？

I am using a custom inputView for some textfield, however when i call resignFirstResponder on the textfield, the custom input view does not dismiss...any suggestions?

UITextField *f=[[UITextfield alloc] init];
 UIView *view=[[UIView alloc] initWithFrame..];
   [f setInputView:view]; //random example of how to set a textfields input view to a custom view

经过一些研究，这个只有在使用模态视图中显示的viewController时才会出现问题......否则它会正常工作......

After some research, this issue only occurs when working with a viewController thats presented in a modal view...it works ok otherwise...

谢谢

-Daniel

推荐答案

而不是调用 resignFirstResponder ，你应该在视图本身或其任何超级视图上调用 endEditing：。 endEditing：将搜索所有具有第一响应者状态的视图的子视图，并要求其辞职。

Instead of calling resignFirstResponder, you should call endEditing: on the view itself or any of its superviews. endEditing: will search all subviews for any view that has first responder status, and ask it to resign.

endEditing：将布尔标志作为参数。如果设置，它将强制第一响应者辞职;否则，您可以允许它保持焦点（例如，如果输入无效）。对于UITextField，这由委托的 shouldEndEditing：方法决定。

endEditing: takes a boolean flag as a parameter. If set, it will force the first responder to resign; otherwise, you can allow it to keep focus (if input is invalid, for example). For a UITextField, this is determined by the delegate's shouldEndEditing: method.

一般来说，一个好的模式可以使用是：

In general, a good pattern to use is:

- (void)saveAction:(id)sender
{
    if ([self.view endEditing:NO]) {
        NSString *text = self.textField.text;
        // save text, login, do whatever
    } else {
        // show an alert (or rely on whatever refused to resign to inform the user why)
    }
}

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