Case Study
Mobile
ScreenCast Pro
A Flutter-based advanced screen casting application that wirelessly streams an Android device’s live screen to Mac, Windows PC, Smart TVs, and web browsers over a local WiFi network. The system utilizes Android’s native MediaProjection API through a foreground service to capture the entire OS display (home screen, apps, and notifications) in real time.
ScreenCast Pro offers a highly versatile casting experience by providing multiple streaming modes:
- Browser Casting (No Receiver Needed): Turns the Android device into a local MJPEG HTTP server, allowing any device with a web browser to view the cast via a simple URL, a scannable QR Code, or an instant native Quick Share / AirDrop popup.
- App-to-App: Discovers receiver devices using custom UDP broadcasts and streams low-latency JPEG frames over WebSockets.
- Smart TV Casting: Uses SSDP/UPnP to discover LG webOS, Samsung, and DLNA-compatible Smart TVs, directly sending a stream URL for native TV playback.
Flutter / DartKotlinAndroid MediaProjection & Foreground ServicesUDP BroadcastSSDP / UPnPWebSocketCustom Local HTTP ServerDLNA and SSAPGetX
mobile
screen-mirroring
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See It In Action
Real screens from the shipped product crafted for an intuitive, smooth, and delightful user experience.
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Key Features
01
Smart Device Auto-Discovery :
- Automation : Automatically scans the local network to locate and catalog nearby receiver devices.
- Protocols : Combines parallel UDP broadcasts for app receivers with SSDP for Smart TVs.
- Convenience : Populates a unified device list instantly without requiring manual IP configuration.
02
Browser Casting (App-Free) :
- Architecture : Hosts a lightweight, mobile-optimized MJPEG HTTP server directly on the handset.
- Compatibility : Allows any modern web browser on Mac, PC, iPhone, or TV to tune into the stream.
- Simplicity : Eliminates client-side installation requirements by using a simple local web URL.
03
Smart TV Direct Casting :
- Discovery : Natively discovers DLNA-compliant screens, LG webOS, and Samsung Tizen TVs.
- Automation : Triggers target televisions to open their integrated web browsers directly.
- Integration : Launches the live stream channel on the TV screen without manual remote input.
04
Quick Share and QR Integration :
- Proximity : Deploys native system share sheets to push instant stream links via Android Quick Share or AirDrop.
- Scanning : Generates a high-contrast on-screen QR Code for fast mobile camera recognition.
- Frictionless : Optimizes the client onboarding experience to eliminate manual URL typing.
05
System-Level Screen Capture :
- Capture : Uses Android’s MediaProjection API to record the display environment at the OS layer.
- Capability : Bypasses framework widget restrictions to show home screens, notifications, and background apps.
- Completeness : Transmits an exact, uncompromised duplicate of the entire mobile device display.
06
Real-Time Dual-Protocol Streaming :
- Optimization : Compresses display capture into heavily optimized, low-bandwidth JPEG frames.
- WebSockets : Routes high-frequency data packets to native receiver apps for low-latency playback.
- HTTP Server : Employs multipart HTTP stream mechanics to maintain universal browser compatibility.
07
Manual IP Fallback & Security Tuning :
- Override : Features a manual connection method using unicast UDP probes to bypass isolated subnets.
- Networking : Automatically provisions dynamic WebSocket ports to prevent software resource conflicts.
- Reliability : Ensures a stable transmission bridge even behind strict corporate router configurations.
08
Permission-Based Security :
- Compliance : Enforces platform security protocols before initializing internal servers or recording.
- Consent : Requires explicit approval via the native Android system-level capture prompt.
- Protection : Safeguards user data by ensuring streaming cannot launch silently in the background.
09
Live Session Dashboard :
- Telemetry : Monitizes real-time performance attributes including active frame rates (FPS).
- Auditing : Tracks current connection health states alongside an active viewer count for public streams.
- Visibility : Displays a running session timer to keep users informed of total elapsed broadcast time.
10
Extensible MVC Architecture :
- Structure : Segregates network protocols, platform-specific channels, and views into a clean MVC pattern.
- Management : Powered by GetX state management for predictable data streams and decoupled components.
- Scalability : Simplifies codebase maintenance to facilitate rapid future updates and feature expansions.
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Third Party SDKs & Libraries
Carefully selected integrations powering this project's core functionality.
GetX
network_info_plus
connectivity_plus
permission_handler
wakelock_plus
share_plus
qr_flutter
7 integrations used in this project
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