How to delay opening of the keyboard on Android, put these methods in your activity.

showdelayedkeyboard.java

private void showDelayedKeyboard (final View view) {
    showDelayedKeyboard(view, 100);
}

private void showDelayedKeyboard (final View view, final int delay) {
    new AsyncTask<Void, Void, Void>() {
        @Override
        protected Void doInBackground(Void... params) {
            try {
                Thread.sleep(delay);
            } catch (InterruptedException e) {
            }

            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            InputMethodManager imm = (InputMethodManager) getSystemService(
                    Context.INPUT_METHOD_SERVICE);
            imm.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);
        }

    }.execute();
}

/*
Usage:

showDelayedKeyboard(textField);
showDelayedKeyboard(textField, 300); // Delay in milliseconds
*/