android:selectAllOnFocus="true"

editText.setSelectAllOnFocus(true);

            editText.requestFocus();
            editText.postDelayed(new Runnable() {
                @Override
                public void run() {
                    InputMethodManager keyboard = (InputMethodManager) catalougeJobDetailFragment
                            .getActivity().getSystemService(
                                    Context.INPUT_METHOD_SERVICE);
                    keyboard.showSoftInput(commentEt, 0);
                }
            }, 20);