Disassemble a target Android APK into Smali bytecode, native library trees (lib/), resources (res/), and a decoded AndroidManifest.xml using apktool. Returns a manifest summary: package name, main/entry Activity, Application class, min/target SDKs, detected native ABIs, and a file manifest.

Scan a decompiled APK workspace to identify optimal injection hooks for Flutter runtime initialization: Application class presence (android:name), entry Activity, JNI loading sites, pre-existing Flutter classes, native ABIs, and recommended Smali patch points.

Compile a source Flutter project and extract the runtime artifacts required for injection: libflutter.so (Flutter engine), libapp.so (Dart AOT snapshot), the flutter_assets bundle, and ICU data. Produces a payload directory ready to merge into a decompiled APK workspace.

Inject Flutter engine assets, native libraries, and Smali glue code into a decompiled APK tree. Generates an InjectedApplication (FlutterEngine init + libflutter/libapp loading), a cached-engine bootstrap, an optional FlutterOverlayActivity (activity_overlay mode), and an optional two-way Smali<->Dart MethodChannel bridge. Returns a detailed patch report.

Patch the decoded AndroidManifest.xml with Flutter runtime requirements: INTERNET/WAKE_LOCK permissions, custom Application class override, FlutterActivity entry (activity_overlay), engine-id metadata, and optional usesCleartextTraffic. Returns a validation status for the patched manifest.

Repack the decompiled APK workspace with apktool, run zipalign for 4-byte alignment, and sign with apksigner using V1/V2/V3 schemes. Uses an auto-generated debug keystore unless a custom keystoreConfig is provided. Returns the verified, aligned, installable APK path.