templates/c/set-protocol/ports/android/README.md

Android port

Android.mk builds libsetprotocol.so from the same C99 sources used by MCU and desktop builds. setprotocol_jni.c contains only JNI marshalling; protocol rules remain in the core. Add the Kotlin directory as an Android source directory and include this Android.mk from the application NDK build.

The JNI streaming parser returns fixed 15-byte records SEQ | FLAGS | CAN_ID_LE | DLC | DATA[8]. Dynamic allocation is confined to the Android adapter for protocol operations; the portable protocol core remains allocation free.

nativeSpectrum calls the shared host DSP module set_spectrum.c (bounded heap workspace, up to 2×16384 doubles). trends/SpectrumAnalyzer maps timestamps and errors but does not duplicate FFT/filter math. Run it off the UI thread. trends/PlotViewport is a toolkit-free normalized zoom/pan model.