private void RefreshWidget(DataSourceObject result) {
 Intent intent = new Intent(context, activity_main.class);
    String str = result != null ? String.valueOf(result.getid()) : "0";
    intent.putExtra("xmlKeyByWidgetProvider", str);
    PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
            intent, 0);

    RemoteViews myRemoteViews = new RemoteViews(context.getPackageName(),
            R.layout.widget);
    myRemoteViews.setOnClickPendingIntent(R.id.widgetLayout, pendingIntent);
    myRemoteViews.setTextViewText(R.id.widgetEnText,
            result.getdatasource_En());
    myRemoteViews.setTextViewText(R.id.widgetCnText,
            result.getdatasource_Cn());
    ComponentName mComponentName = new ComponentName(context,
            WidgetProvider.class);
    AppWidgetManager myAppWidgetManager = AppWidgetManager
            .getInstance(context);
    myAppWidgetManager.updateAppWidget(mComponentName, myRemoteViews);

}

这是我在BroadcastReceiver里面刷新AppWidgetManager的代码，在Activity里面我写了这样的代码用于获取值。
@Override

protected void onResume() {
    super.onResume();

    Intent intent = this.getIntent();
    if (intent == null)
        return;

    if (intent.hasExtra("xmlKeyByWidgetProvider")) {
        String str = intent.getStringExtra("xmlKeyByWidgetProvider");
        Log.i("ssss", str);
        gallery.setSelection(Integer.parseInt(str));
    }

}

但是Intent并没有获取到AppWidgetManager传过来的值。