How to show video with transparent background?

My current task is to show an object in motion over a standard desktop. If it was static I'd better u开发者_高级运维se a PNG image format with transparent background. But what to do if an object must move over icons and widgets? And the thing is that an object should be realistic (not like in cartoons). Several frames with transparency don't match either.

I suggest you read the documentation on how to create a live wallpaper and review the live wallpaper sample in the documentation.

As far as I know, there is no way to overlay things on the home screen, unless you're using a custom widget like you can use in Android 3.x.

Hope this helps.