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POAndroid - Widget with Scrollable Listview Manual Refresh
 

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    <p>I googled and found the code to manipulate listview data using <strong>RemoteViewsService</strong> and <strong>RemoteViewsService.RemoteViewsFactory.</strong> as below</p> <pre><code>Intent svcIntent = new Intent(context, WidgetService.class); svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,appWidgetIds[i]); svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME))); RemoteViews widget = new RemoteViews(context.getPackageName(),R.layout.widget_layout); widget.setRemoteAdapter(appWidgetIds[i], R.id.lstAppointments,svcIntent); </code></pre> <p>WidgetService.java contains</p> <pre><code>public class WidgetService extends RemoteViewsService { @Override public RemoteViewsFactory onGetViewFactory(Intent intent) { return (new WidgetViewsFactory(this.getApplicationContext(), intent)); } public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return super.onBind(intent); } } </code></pre> <p>and wrote all the codes for fetching data from webservice in onCreate of <strong>WidgetViewsFactory implements RemoteViewsService.RemoteViewsFactory</strong></p> <p>For updating records manually or automatically every 5seconds, I found Update via Service methods as below mentioned</p> <pre><code>public class WordWidget extends AppWidgetProvider { static int value = 1; Handler handler = new Handler(); MyRunnable myRunnable; @Override public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // To prevent any ANR timeouts, we perform the update in a service myRunnable = new MyRunnable(context); handler.postDelayed(myRunnable, 1000); } class MyRunnable implements Runnable { Context context; public MyRunnable(Context context) { this.context = context; } public void run() { context.startService(new Intent(context, UpdateService.class)); handler.postDelayed(myRunnable, 1000); } } public static class UpdateService extends Service { @Override public void onStart(Intent intent, int startId) { // Build the widget update for today RemoteViews updateViews = buildUpdate(this); // Push update for this widget to the home screen ComponentName thisWidget = new ComponentName(this, WordWidget.class); AppWidgetManager manager = AppWidgetManager.getInstance(this); manager.updateAppWidget(thisWidget, updateViews); } public RemoteViews buildUpdate(Context context) { RemoteViews updateViews; // Build an update that holds the updated widget contents updateViews = new RemoteViews(context.getPackageName(), R.layout.widget_word); Log.e("value", String.valueOf(value)); updateViews.setTextViewText(R.id.word_title, "Title"); updateViews.setTextViewText(R.id.word_type, String.valueOf(value)); updateViews.setTextViewText(R.id.definition, String.valueOf(value)); value += 1; // When user clicks on widget it opens www.google.com Intent defineIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.google.co.in/")); PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, defineIntent, 0); updateViews.setOnClickPendingIntent(R.id.widget, pendingIntent); return updateViews; } @Override public IBinder onBind(Intent intent) { // We don't need to bind to this service return null; } } } </code></pre> <p>How to update the listview automatically.. I know how to update textview as mentioned above.</p>
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