This is a mobile application that allows users to sign up, log in, and add friends. The app allows users to track the real-time location of their friends in the background and view their location on a map. Users can add friends using their unique user ID and change their profile image using Firebase Storage. The app was developed using the Xamarin framework, C#, and the MVVM design pattern. It utilizes Firebase technologies, including Firebase Authentication, Realtime Database, and Storage, as well as Xamarin Geolocation and Maps plugins.

• Sign up and log in using Firebase Authentication
• Add friends and track their real-time location in the background
• View friends' locations on a map
• Add friends using their unique user ID
• Change your profile image using Firebase Storage
• Share your location with friends using the Xamarin Plugin.Share

1. Clone or download the repository
2. Create a Firebase project and enable the Authentication, Realtime Database, and Storage services
3. Add your Firebase project configuration to the app
4. Open the solution file in Visual Studio
5. Build and run the application on an emulator or device

• Visual Studio with the Xamarin extension installed
• A device or emulator to run the app on
• A Firebase project

I hope this helps! If you have any other questions or need further assistance, don't hesitate to ask.