title: Open EditTextPreference through code (programmatically)
body: <p>I have made the EditTextPreference 'textPasscode' dependant on a CheckBoxPreference 'checkBoxPasscode'. I want the 'textPasscode' to open up as soon as the user checks the check box.. Is it even possible? 
  If it is, what can I use in the <code>onSharedPreferenceChanged()</code> function? </p>
  
  <pre><code>public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
      if(key.contentEquals("checkBoxPasscode")){
         // ----some method to open edit text "textPasscode" ??
      }
  }
  </code></pre>