i used flickr Json data downloading to the app using AsyncTask I made http request and got Json data and parsed it RecyclerView and RecyclerViewAdaper I used callback functions I used picasso library to download images I used RecyclerView.OnItemTouchListener interface and its methods to detect some clicks. I implementted GestureDetectorCompat interface I used GestureDetectorCompat class to detect clicks and implemented its methods . I transferred data between actyivities using putExtra I used searchManager to allow the user to search for an image - View it on GitHub