Build an Android and iOS Video Calling App With React Native

Building a mobile cross-platform audio and video calling app using a single code base with React Native allows for efficient development and maintenance, as it can be deployed on both iOS and Android devices. This guide demonstrates the process, starting with setting up development tools like VS Code, Xcode, and Android Studio, and configuring React Native for both platforms. The tutorial utilizes Stream's React Native Video SDK to implement features such as picture-in-picture and group calling, while also detailing the necessary permissions and Java configurations for each platform. The setup involves creating a React Native project, installing core and peer dependencies like Incall Manager and NetInfo, and configuring camera and microphone permissions. The guide walks through creating home and call screens with sample TypeScript code and highlights the importance of generating a user token for authentication. Finally, it advises testing on actual devices instead of simulators to ensure functionality, providing a comprehensive overview of developing a robust video calling app akin to WhatsApp.