将图像从Android上传到Amazon S3？

I need to upload a bitmap to Amazon S3. I have never used S3, and the docs are proving less than helpful as I can't see anything to cover this specific requirement. Unfortunately I'm struggling to find time on this project to spend a whole day learning how it all hangs together so hoping one of you kind people can give me some pointers.I need to upload a bitmap to Amazon S3. I have