Modify a Codecanyon project

It's Android project and its link is given below. [login to view URL] In this game, instead of black block I want to replace it with an image from gallery or from Camera. I'll provide you with code of game and code of image picker and camera written in native android. You've to merge that code in the game code. Game code is written in LibGDX , that's why I'm facing problem to merge code. Game code is well written and have option to replace block with user image. If you've never used LibGDX , please don't bid. If you've any confusion , please write it down while bidding. I'll explain in message.