Null pointer error with hideSoftInputFromWindow

Question

I get a null pointer exception at this row:

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


        

Answer 1

It can show error if instance of InputMethodManager is null. Try the below code it worked for me.

void hideKeyboard() {
InputMethodManager inputManager = (InputMethodManager) 
getActivity().getSystemService(
        Context.INPUT_METHOD_SERVICE);
View focusedView = getActivity().getCurrentFocus();

if (focusedView != null) {

    try{
    assert inputManager != null;
    inputManager.hideSoftInputFromWindow(focusedView.getWindowToken(),
            InputMethodManager.HIDE_NOT_ALWAYS);
}catch(AssertionError e{
     e.printStackTrace();
    }
  }
}