android_multi_display 0.1.1

Flutter plugin for managing multiple external displays on Android, with presentation rendering and real-time data communication between screens.

android_multi_display

Android Flutter plugin for managing multiple external displays with independent UI rendering and real-time data communication between screens.

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✨ Features

• Support up to 3 ordered displays (primary + secondary + tertiary)
• Render independent Flutter UI on each screen
• Real-time bidirectional messaging (host ↔ panels)
• Fine control over display ordering and attachment

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📸 Preview

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🧠 How it works

• Main app = Host (primary display)

• External screens = Panels (secondary / tertiary)

• Communication:

  • Host → Panels: broadcast
  • Panels → Host: panelBridge

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🔧 Basic Usage

final controller = PanelController();

await controller.bootstrap(
  secondaryEntrypoint: 'secondaryDisplayMain',
  tertiaryEntrypoint: 'tertiaryDisplayMain', //Optional
);

await controller.activatePanels();

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🔄 Messaging

Host → Panels (send from main app)

await controller.broadcast(
  action: 'demo_message',
  payload: {'tick': DateTime.now().millisecondsSinceEpoch},
);

Receive on panel entrypoint (secondaryDisplayMain / tertiaryDisplayMain):

import 'package:android_multi_display/panel_bridge.dart';

void _incoming({required String action, dynamic payload}) {
  debugPrint('from host: $action $payload');
}

@override
void initState() {
  super.initState();
  panelBridge.addListener(_incoming);
}

@override
void dispose() {
  panelBridge.removeListener(_incoming);
  super.dispose();
}

Panels → Host (send from panel)

await panelBridge.publish(
  action: 'panel_ping',
  payload: {'label': 'Panel A'},
);

Receive on host:

void _listenHostPayload({required String action, dynamic payload}) {
  debugPrint('from panel: $action $payload');
}

@override
void initState() {
  super.initState();
  controller.watchMessages(_listenHostPayload);
}

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🧩 Panel Plugins

If you need to use Flutter plugins inside panel screens (like path_provider), you must register them during bootstrap.

await controller.bootstrap(
  secondaryEntrypoint: 'secondaryDisplayMain',
  tertiaryEntrypoint: 'tertiaryDisplayMain',  //Optional
  panelPluginClassNames: const [
    'io.flutter.plugins.pathprovider.PathProviderPlugin',
  ],
);

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🤝 Contributing

Contributions are welcome!

If you have ideas, improvements, or bug fixes, feel free to open an issue or pull request on GitHub.

This plugin was partly inspired by external_display but redesigned with a focus on multi-display orchestration and messaging.

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☕ Support / Donate

If this plugin helped you, consider supporting development:

💳 Card Payment

https://yekpay.io/en/azemdev

🪙 Crypto

USDT (TRC20): TJnFcaM8v4s5RVfo9H3jc38tH1HwdA2PkV

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📄 License

MIT License