switching inputview for uitextfield

I am making a custom input view for my textfield in textFieldDidBeginEditing method using

textField.inputView =wView;

There is button using which I want to get back the keyboard instead of my custom input view. Any idea how to do that.

If there is no other go I wanted to try with resigning textfield as first responder and make it first responder again. But this would really complicate my project. I wanted to know if there is any other way!

I tried other post in stackoverflow but did not work.

Any help would be appreciated.

Thanks