Connecting Two Devices and Playing the Same Video Simultaneously on Android

Video synchronization across multiple devices on Android is a common requirement, especially when sharing entertainment or educational content. This guide explores various methods to achieve seamless multi-device streaming, ensuring that both screens display the same video in real-time. Whether you're using existing services or custom solutions, there's a method to accommodate your needs.

1. Using Streaming Apps

For a quick and straightforward solution, consider using streaming apps specifically designed for multiplayer viewing. These apps often have built-in features that allow for synchronized video playback and real-time interaction.

YouTube Together: This platform allows users to watch YouTube videos in sync with others, with features for chatting and sharing your thoughts. Teleparty (formerly Netflix Party): Ideal for watching Netflix or other streaming services together in sync. This browser extension enhances the viewing experience by synchronizing playback across multiple browsers.

2. Using Bluetooth Speakers

If your main concern is audio synchronization, a Bluetooth speaker that supports multi-device connections can be a viable option. However, this method won't ensure video synchronization across both devices.

3. Using Screen Mirroring

Screen mirroring applications can project one device's screen onto another, facilitating the display of the same video. Two popular methods include:

Google Cast: If both devices support it, you can cast video content directly from one device to another. Miracast: A wireless display protocol that enables screen mirroring between compatible Android devices.

4. Using Third-Party Apps

For more control over the streaming experience, third-party apps offer advanced features for synchronized viewing:

Kast: Stream videos and watch together with friends, complete with real-time command features like play, pause, and seek. Jitsi Meet: Create a meeting and share your screen with others to ensure synchronized video playback. It is also highly customizable for various uses.

5. Custom Solution Coding

For developers looking to build their own application, creating a custom solution using sockets or a server can provide precise control over video playback. Here's a basic outline for implementing a custom solution:

Set Up a Server: Create a server that both devices can connect to. Use WebSockets: Send real-time commands for play, pause, and seek to both devices. Sync Playback: Utilize timestamps to ensure both devices are playing the video in sync.

Example Code Using WebSockets:

// Pseudo-code for WebSocket connection
WebSocketClient webSocketClient  new WebSocketClient(new URI("server_address"));
();
@Override
public void onOpen(ServerHandshake handshakedata) {
    // Connection opened
}
@Override
public void onMessage(String message) {
    // Handle incoming messages play, pause, etc.
}

Conclusion

Choose the method that best fits your needs based on the devices you have and the level of synchronization required. For the simplest solution, using existing streaming apps or services is recommended. If you need more control over the playback experience, consider building a custom solution tailored to your specific requirements.