I update my widget from within my app, when I delete/add entries to a
list. To do this, I have a method (updateWidget) and a static String
(UPDATE_ACTION). My updateWidget() method sends a broadcast which is
received by the widget class and then calls onUpdate() with the
appropriate params:
private void updateWidget() {
Intent i = new Intent(this, TVWidget.class);
i.setAction(TVWidget.UPDATE_ACTION);
sendBroadcast(i);
}
In TVWidget class:
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action != null && action.equals(UPDATE_ACTION)) {
final AppWidgetManager manager = AppWidgetManager.getInstance
(context);
onUpdate(context, manager,
manager.getAppWidgetIds(new ComponentName(
context, TVWidget.class)
)
);
}
else {
super.onReceive(context, intent);
}
}
This seems to work fine.
Cached
