Android :: Embed An App Widget In An Activity?

I want to embed the analog clock in my application.

I use <AnalogClock android:layout_width="wrap_content" :layout_height="wrap_content" /> in my layout XML file, but the clock's appearance is different from the one added in Home screen. I know I can copy the AlarmClock's images to my project. And in xml file, set the android:dial, android:hand_hour,and android:hand_minute to my project's images. But I want to know is there a way to directly reference the resource in the AnalogClock?

second question, Can I add the app widget from code? I tried use following code to add a appwidget, but it seems the getAppWidgetIds don't work?

CODE:...................