Android - Widget avec Scrollable Listview Manual Refresh

J'ai googlé et trouvé le code pour manipuler listview données à l'aide de RemoteViewsService et RemoteViewsService.RemoteViewsFactory. comme ci-dessous

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);

WidgetService.java contient

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);
    }
}

et écrit de tous les codes de l'extraction de données à partir d'un webservice dans le onCreate de WidgetViewsFactory implémente RemoteViewsService.RemoteViewsFactory

Pour la mise à jour des enregistrements manuellement ou automatiquement à chaque 5seconds, j'ai trouvé la mise à Jour via le Service méthodes mentionnées ci-dessous

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;
}
}
}

Comment mettre à jour la liste automatiquement.. je sais comment mettre à jour textview comme mentionné ci-dessus.

source d'informationauteur Vishal Khakhkhar