Soft Keyboard shows up on EditText focus ONLY once

Try to open and hide inside a Runnable as,

TO OPEN

                 ettext.requestFocus();
                 ettext.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        InputMethodManager keyboard = (InputMethodManager)
                        getSystemService(Context.INPUT_METHOD_SERVICE);
                        keyboard.showSoftInput(ettext, 0);
                    }
                },200);

TO CLOSE

                    ettext.requestFocus();
                    ettext.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        InputMethodManager keyboard = (InputMethodManager)
                        getSystemService(Context.INPUT_METHOD_SERVICE);
                        keyboard.hideSoftInputFromWindow(ettext.
                                                         getWindowToken(), 0);
                    }
                },200);