Android：单击窗口小部件时活动未启动

Question

I have a widget whose layout has two buttons. My code follows,

public void onReceive(Context context, Intent i) {

    AppWidgetManager mgr = AppWidgetManager.getInstance(context);

    Intent intent = new Intent(context, Activity1.class);
    PendingIntent pendingLayout = PendingIntent.getActivity(context, 0, intent, 0);


    Intent searchIntent = new Intent(context, Activity2.class);
    PendingIntent searchPendingLayout = PendingIntent.getActivity(context, 0, searchIntent, 0);

    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.searchwidget);

    views.setOnClickPendingIntent(R.id.widgetbutton, pendingLayout);
    views.setOnClickPendingIntent(R.id.widgetsearch, searchPendingLayout);

    ComponentName comp = new ComponentName(context,
            RecentTaskWidget.class.getName());

    mgr.updateAppWidget(comp, views);
}

The widgetbutton and the widgetsearch are the two views in the layout. I am getting the corresponding views from the remoteviews object and adding the pending layout to each of them. However, the activities are not starting. Is there anything wrong with the code?

Thx!

Answer 1

Override onUpdate() method of your AppWidgetProvider and add this code to it's body:

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
    AppWidgetManager mgr = AppWidgetManager.getInstance(context);
    Intent intent = new Intent(context, Activity1.class);
    PendingIntent pendingLayout = PendingIntent.getActivity(context, 0, intent, 0);
    Intent searchIntent = new Intent(context, Activity2.class);
    PendingIntent searchPendingLayout = PendingIntent.getActivity(context, 0, searchIntent, 0);
    RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.searchwidget);
    views.setOnClickPendingIntent(R.id.widgetbutton, pendingLayout);
    views.setOnClickPendingIntent(R.id.widgetsearch, searchPendingLayout);
    ...
    appWidgetManager.updateAppWidget(appWidgetIds, views);
}       

You can see this page for more details.