Я регистрирую широковещательный получатель в операции предпочтения и отправляю ему (синхронизацию) широковещательную рассылку от (Wakeful) IntentService. Очевидно, onReceive работает в потоке службы. Это вина моей части? Это документированное поведение?

Предпочтительная деятельность:

public final class SettingsActivity extends BaseSettings {

    private static CharSequence sMasterKey;
    private CheckBoxPreference mMasterPref;
    // Receiver
    /** If the master preference is changed externally this reacts */
    private BroadcastReceiver mExternalChangeReceiver =
        new ExternalChangeReceiver();

    public static void notifyMonitoringStateChange(Context ctx,
            CharSequence action, boolean isToggling) {
        final LocalBroadcastManager lbm = LocalBroadcastManager
            .getInstance(ctx);
        Intent intent = new Intent(ctx, ExternalChangeReceiver.class);
        intent.setAction(action.toString());
        intent.putExtra(TOGGLING_MONITORING_IN_PROGRESS, isToggling);
        lbm.sendBroadcastSync(intent);
    }

    @Override
    protected void onStart() {
        super.onStart();
        final LocalBroadcastManager lbm = LocalBroadcastManager
            .getInstance(this);
        lbm.registerReceiver(mExternalChangeReceiver, new IntentFilter(
            ac_toggling.toString()));
    }

    @Override
    protected void onStop() {
        // may not be called in Froyo
        final LocalBroadcastManager lbm = LocalBroadcastManager
            .getInstance(this);
        lbm.unregisterReceiver(mExternalChangeReceiver);
        super.onStop();
    }

    private final class ExternalChangeReceiver extends BroadcastReceiver {

        ExternalChangeReceiver() {}

        @Override
        @SuppressWarnings("synthetic-access")
        public void onReceive(Context ctx, Intent intent) {
            if (sMasterKey == null || mMasterPref == null) return; // if
            // onPostReceive has not run this will be null
            final String action = intent.getAction();
            if (ac_toggling.equals(action)) {
                final boolean isToggling = intent.getBooleanExtra(
                    TOGGLING_MONITORING_IN_PROGRESS, false);
                Log.w(ExternalChangeReceiver.class.getSimpleName(),
                    "isToggling " + isToggling);
                mMasterPref.setEnabled(!isToggling); // line 168 !!!
                refreshMasterPreference(isToggling);
            }
        }
    }
}

IntentService (LocationMonitor):

SettingsActivity.notifyMonitoringStateChange(this, ac_toggling, true);

Исключение (E / AndroidRuntime):

FATAL EXCEPTION: IntentService[LocationMonitor]
android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
    at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:4746)
    at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:823)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.view.View.requestLayout(View.java:15473)
    at android.widget.AbsListView.requestLayout(AbsListView.java:1819)
    at android.widget.AdapterView$AdapterDataSetObserver.onChanged(AdapterView.java:813)
    at android.widget.AbsListView$AdapterDataSetObserver.onChanged(AbsListView.java:5958)
    at android.database.DataSetObservable.notifyChanged(DataSetObservable.java:37)
    at android.widget.BaseAdapter.notifyDataSetChanged(BaseAdapter.java:50)
    at android.preference.PreferenceGroupAdapter.onPreferenceChange(PreferenceGroupAdapter.java:238)
    at android.preference.Preference.notifyChanged(Preference.java:1099)
    at android.preference.Preference.setEnabled(Preference.java:726)
    at gr.uoa.di.monitoring.android.activities.SettingsActivity$ExternalChangeReceiver.onReceive(SettingsActivity.java:168)
    at android.support.v4.content.LocalBroadcastManager.executePendingBroadcasts(LocalBroadcastManager.java:297)
    at android.support.v4.content.LocalBroadcastManager.sendBroadcastSync(LocalBroadcastManager.java:278)
    at gr.uoa.di.monitoring.android.activities.SettingsActivity.notifyMonitoringStateChange(SettingsActivity.java:54)
    at gr.uoa.di.monitoring.android.services.Monitor.abort(Monitor.java:241)
    at gr.uoa.di.monitoring.android.services.LocationMonitor.doWakefulWork(LocationMonitor.java:103)
    at com.commonsware.cwac.wakeful.WakefulIntentService.onHandleIntent(WakefulIntentService.java:94)
    at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.os.HandlerThread.run(HandlerThread.java:60)

На эмуляторе API 17