Load Activity and/or Application Logo Programmatically from Manifest

I am trying to load the logo associated with the current activity and/or its parent application from the definition in the manifest. This technique has already worked successfully on loading the title and icon associated with both, but the logo is always returning null or 0.

Here is the relevant info from the manifest I am working with:

<application
    android:icon="@drawable/ic_launcher"
    android:logo="@drawable/ad_logo"
    android:label="@string/app_name"
    android:hardwareAccelerated="true">

    <activity
        android:name=".MainActivity" 
        android:label="@string/app_name"
        android:logo="@drawable/ad_logo">

With activity being an instance of the above defined activity, I have tried the following (results annotated inline):

PackageManager pm = activity.getPackageManager();
ComponentName cn = activity.getComponentName();
ApplicationInfo ai = activity.getApplicationInfo();

//ACTIVITY LABEL: Works
pm.getActivityInfo(cn, PackageManager.GET_ACTIVITIES).loadLabel(pm);

//APPLICATION LABEL: Works
ai.loadLabel(pm);
//APPLICATION LABEL: Works
pm.getApplicationLabel(ai);

//ACTIVITY ICON: Works
pm.getActivityInfo(cn, PackageManager.GET_ACTIVITIES).loadIcon(pm);
//ACTIVITTY ICON: Works
pm.getActivityIcon(cn);

//APPLICATION ICON: Works
pm.getApplicationIcon(ai);
//APPLICATION ICON: Works
ai.loadIcon(pm);

//ACTIVITY LOGO: Does not work
pm.getActivityInfo(cn, PackageManager.GET_ACTIVITIES).loadLogo(pm);
//ACTIVITY LOGO: Does not work
pm.getActivityInfo(cn, PackageManager.GET_ACTIVITIES).logo
//ACTIVITY LOGO: Does not work
pm.getActivityLogo(cn);

//APPLICATION LOGO: Does not work
pm.getApplicationLogo(ai);
//APPLICATION LOGO: Does not work
pm.getApplicationLogo(activity.getApplication().getPackageName());
//APPLICATION LOGO: Does not work
ai.loadLogo(pm);

//APPLICATION LOGO: Does not work
pm.getApplicationInfo(ai.packageName, 0).loadLogo(pm);
//APPLICATION LOGO: Does not work
ai.logo;

Does anyone know how to properly load the logo for either or both of these targets?

edit: Для поддержки логотипа требуется уровень API 9. Устройства, на которых я тестирую, являются эмуляторами и физическими устройствами, на которых работает API уровня 10. Этот код никогда не будет выполняться на версиях 3.0+.