Create a wallpaper app for Android

Hi, I need an app for Android It will be a wallpaper app, there will be a folder with images in the project which must be loaded dynamically and shown at the first screen with an image gallery, once clicked on any image that image will be shown as full screen and will be a menu to share that image, set it as wallpaper... The app will consist in 2 pages. Main Page (Page 1) : - Will be a header with the text "Select Image" - Will show a vertical scrollable image (thumbnail) gallery (in 2 columns) - The images will be dynamically from /assets folder - When an image is clicked -> go to page 2 Detail Page (Page 2) - Will show the image selected in fullscreen - Sliding the image back or forward with go to the previous/next image (in the same page) - Can zoom in or out the picture with fingers - There will be 5 icons : Set as wallpaper, Share Image, Save Local (with confirmation messages), rate app and remove ads - The "remove ads" button will make a in-app purchase and set global variable ads_bought to true, when starting the app you will have to check if the ads are bought or not and set the variable accordingly. It's a small project so please bid accordingly. Smalled bid gets the project.