UITextField成为firstResponder仅工作一次

Question

In my app, there is the ability for the user to input their name.

A UITextField is added to the view and becomeFirstResponder is called. In the textFieldShouldReturn method, resignFirstResponder is called. Then in textFieldShouldEndEditing, the UITextField is removed from the view.

This all works fine, but the problem is that when the user tries to input their name a second time, the UITextField shows but keyboard does not.

I have tried lots of things, like moving around become/resign firstresponder or retaining/not retaining the textfield, but I just cant seem to get it to work. Any ideas? Thanks

Answer 1

尝试在textFieldDidEndEditing中进行工作，当您第二次点击文本字段时，控件应进入textFieldShouldBeginEditing中，尝试检查是否有断点，否则不会出现问题，那就是您的文本字段没有分配任何内存，如果有进入此功能时，将此文本字段设置为第一响应者。

Answer 2

如果为该UITextField设置了属性，请确保在将其从视图中删除后将其设置为nil。