For this task you will need to build a fully working prototype. This prototype needs to include all the features listed in the instructions section of this document but based on your own design and user interface layout. You must create a demonstration video showing the prototype running in an emulator. For the video, make sure that you show the app performing the following functions: $$ The user must be able to log in to the app using a username and password. $$ The user must be able to create categories that their collectables can belong to$.$ The user must be able to set a goal for the number of items that they want to own in each category. $$ The user must be able to add new items to their collection, specifying at least the category, description and $($if known$)$ the date of acquisition of each item. $$ The user must be able to view a list of all the items in the collection. $$ The user must be able to take and store a photograph of each item. The demonstration video must effectively demonstrate the features of the app and be fully professional. The video must include a voice over explaining what you are showing. Remember to compress the video to make uploading it to Learn easier and faster. The app must have a user friendly and appropriate user interface, that is able to handle invalid inputs made by the user without crashing. The app must be working with only minor bugs and errors