Add background image to android app

I have an android drawing app, and I want to add a bitmap to it that puts the image as a background to draw on and save the drawing .it already has save and other features implemented.I want the url of the image to be first referenced in a string variable the cast inside the bitmap that draws it on the [login to view URL] ok if when you press clear paint image that the whole screen turns [login to view URL] not its ok [login to view URL] let me know if you can do this and I will send project for you to look at