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copied!<p>The reason why the <code>CalledFromWrongThreadException</code> is raised, is because the <code>OnChangeListener</code> is not supposed to be called from the <code>IntentService</code>.</p> <p>What you could do though, is sending a Broadcast (where you can actually include the value as well).</p> <p>In case you are only using the <code>SharedPreference</code> for communication, you can replace it entirely (and I would recommend this, as SharedPreferences are wasting Write Cycles).</p> <p>You could use a code like this for sending a Broadcast:</p> <pre><code>/** * Send an Intent with the Broadcast, a permission and a Bundle * * @param context * A context to use * @param broadcast * String to use, eg. "de.bulling.smstalk.ENABLE" * @param permission * Permission needed for receiving * @param bundle * Extras to attach */ public static void send_broadcast(Context context, String broadcast, String permission, Bundle bundle) { //SettingsClass.log_me(tag, "Sending broadcast " + broadcast); Intent i = new Intent(); i.setAction(broadcast); if (bundle != null) { i.putExtras(bundle); } if (permission != null) { context.sendBroadcast(i, permission); } else { context.sendBroadcast(i); } } </code></pre> <p>You should include a custom permission as well, so other apps don't get the Broadcast, but it is not necessarily needed.</p> <p>To receive the Broadcast, register a Receiver in your Activity, eg</p> <pre><code>private final BroadcastReceiver receiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Bundle b = intent.getExtras(); doSomething(); } }; @Override public void onCreate(Bundle bundle) { super.onCreate(bundle); IntentFilter filter = new IntentFilter(); filter.addAction(YOURBROADCAST); registerReceiver(receiver, filter); [...] } @Override public void onDestroy() { unregisterReceiver(receiver); super.onDestroy(); } </code></pre> <p>Also you should consider using <code>Handler</code>s, so your methods in the OnChangeListener call are run by the MainUI thread.</p> <p>Example:</p> <pre><code>Handler mHandler = new Handler(); Runnable myCode = new Runnable(){ @Override protected void onRun() { yourCode(); } }; mHandler.run(myCode); </code></pre> <p>This has also the advantage of running the code delayed with <code>runDelayed()</code>, so you don't have to use <code>sleep</code>, and you UI will be still responding.</p>

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