Null pointer error with hideSoftInputFromWindow

Question

I get a null pointer exception at this row:

public void hideKeyboard(){ 
InputMethodManager inputManager = (InputMethodManager)            
            this.         


        

Answer 1

Everybody above correctly pointed that the getWindowToken() was returning null.

I was using the default code getCurrentFocus().getWindowToken() to hide keyboard when I encountered the same issue.

I then realized that as there's no View obtaining the focus I got the NullPointerException.

We can change the above to:

anyView.getWindowToken()

where anyView is simply any view in your layout.