What are the options for adding voice or video calling functionality to my Android application?
Adding voice or video calling functionality to your Android application is possible through various options. Here are the most common ones: 1. Android Multimedia Framework: The Android Multimedia Framework provides native APIs for managing multimedia content, including audio and video. You can utilize the MediaRecorder and MediaPlayback classes to record and play audio or video streams within your app. However, building a full-fledged voice or video calling system from scratch using these APIs requires significant development effort. 2. Android Camera API: If you want to add video calling specifically, the Android Camera API allows you to access and control device cameras. You can use this API to capture video frames, show a live video preview, and process video streams. It provides low-level control, but implementing a complete calling system requires additional work. 3. WebRTC: WebRTC (Web Real-Time Communication) is a popular open-source project that enables real-time communication capabilities in web browsers and mobile applications. It offers APIs for building voice and video calling features, including