🚀 RPDev Launcher: Lean AOSP Desktop Orchestrator

High-performance, privacy-first Android home screen experience built on modern AOSP foundations with Android 16 parity.

• Live Showcase: launcher.iamrp.dev
• User Documentation: wiki.iamrp.dev/launcher/
• Source Repository: github.com/RPDevs-Builds/RPDev-Launcher

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⚡ Architectural Innovations

1. DataStore Reactive State Synchronization

RPDev Launcher utilizes Jetpack DataStore for all user preferences, desktop grid configurations, and gesture mappings:

• Pure asynchronous Kotlin StateFlow streams replace legacy blocking SharedPreferences.
• Main-thread operations are strictly guarded via IO dispatchers, ensuring zero frame drops during orientation changes or app launches.

2. Recursive Nested Folders & Cycle Detection

To support complex organization while preventing infinite loops in hierarchical desktop configurations, the folder manager implements a cycle-safe Depth-First Search (DFS) traversal algorithm:

fun hasCycle(folderId: String, visited: MutableSet<String>): Boolean {
    if (visited.contains(folderId)) return true
    visited.add(folderId)
    val children = getSubFolderIds(folderId)
    for (child in children) {
        if (hasCycle(child, visited)) return true
    }
    visited.remove(folderId)
    return false
}

3. AIDL Overlay Client (WINDOW_OVERLAY)

The launcher implements Google’s standard ILauncherOverlay client interface, binding dynamically to RPDev Feed:

• Detects horizontal drag gestures on page 0.
• Transmits normalized horizontal scroll progress (0.0f to 1.0f) over IPC.
• Delegates overlay rendering to the companion service without sharing process memory.