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POCan't make a toast from thread in an AppWidgetProvider class
 

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    <p>I have an appwidget that can download some data from a web service (in a thread in <code>onReceive()</code> ) by clicking on it. After that is finished the GUI of the widget gets updated in <code>updateWidget(...)</code> (= re-drawn).</p> <p>I want to make a toast when this is done. I tried a lot like to make a toast at the end of <code>updateWidget(...)</code> by passing the context from the thread to the toast, but that didn't work. The problem seems to be the context. Because my class inherits from <code>AppWidgetProvider</code> and NOT from Activity I CANNOT use stuff like <code>getApplicationContext()</code>. I guess I just need to get the right context for the toast, but I have no idea how to do that. </p> <p>Here is the relevant code:</p> <pre><code>@Override public void onReceive(Context context, Intent intent) { // Name of the action of the intent final String action = intent.getAction(); // This way the context and the intent can be used in the thread final Context ctx = context; final Intent i = intent; if (action.equals(COUNT_DOWN) == true || action.equals(COUNT_UP) == true) { // Show toast to inform the user that this feature is only available in the full version Toast.makeText(context, R.string.no_groupchange, Toast.LENGTH_SHORT).show(); } // Update current group else if (action.equals(UPDATE_WIDGET)) { // Check for internet connection if (isOnline(context) == true) { // Show toast to inform the user that refreshing the data has started Toast.makeText(context, R.string.refreshing, Toast.LENGTH_SHORT).show(); // This way the complete internet communication is independent from the GUI // Also works at low speed internet connection Thread myThread = new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub int currentGroupOrderID = soapManager.getCurrentGroupOrderID(LEAGUE_SC); theGroup = soapManager.getGroup(currentGroupOrderID, LEAGUE_SC, SAISON); nextMatch = soapManager.getNextMatch(LEAGUE_SC); updateWidget(ctx, i); } }); myThread.start(); } else { Toast.makeText(context, R.string.no_internet, Toast.LENGTH_SHORT).show(); } } super.onReceive(context, intent); } public void updateWidget(Context context, Intent intent) { // Creating remoteViews for updating the widget RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_layout_simple); // Fill the textViews with text setTextViewsFromTheGroup(remoteViews); setNextMatchTextView(remoteViews); // Update the widget ComponentName widget = new ComponentName(context, SoccerWidgetProvider.class); AppWidgetManager awm = AppWidgetManager.getInstance(context); awm.updateAppWidget(widget, remoteViews); // This way the widget doesn't stop reacting after some time final int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) { attachIntents(context, remoteViews, appWidgetId); } // HERE I WANT TO MAKE A TOAST!!! } </code></pre>
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