Updating AppWidget

Question

I'm launching an activity on a buttonclick from AppWidget. The user enters some data on the activity and when user closes the activity, I want to update the data user entered in a TextView on AppWidget. Any idea how to do that? I have successfully launched activity from AppWidget, only problem being updating the AppWidget.

score 4 · Accepted Answer · answered Jul 30 '10 at 15:46

4

You can use RemoteViews and the AppWidgetManager:

AppWidgetManager manager = AppWidgetManager.getInstance(context);

RemoteViews remoteViews = new RemoteViews(
    context.getPackageName(), R.layout.widget);
remoteViews.setTextViewText(R.id.textBoxId, "new textbox content");

manager.updateAppWidget(appWidgetId, remoteViews);

answered Jul 30 '10 at 15:46

Josef Pfleger

74,165
16
97
99

In which method of my class extending AppWidgetProvider should I add this? – Amit Chintawar Jul 31 '10 at 15:46
The snippet will update a `TextView` in your widget. You wrote that you want to update your widget when the user closes an `Activity` so that `Activity`'s `onPause` method would be a good place for example. – Josef Pfleger Jul 31 '10 at 16:39
@AmitChintawar where does the appWidgetId come from ? – ChristopheCVB Jan 30 '12 at 21:19

rdmc · Answer 2 · 2018-07-16T20:31:41.113

0

You can call the appwidget update method from the host application activity or fragment.

This is how I have done it:

    int[] ids = AppWidgetManager.getInstance(getApplication()).
    getAppWidgetIds(new ComponentName(getApplication(), MyWidget.class));
    MyWidget myWidget = new MyWidget();
    myWidget.onUpdate(this, AppWidgetManager.getInstance(this),ids);

edited Jul 16 '18 at 20:31

answered Jul 16 '18 at 17:44

rdmc

21
5

Updating AppWidget

2 Answers2