Android Position Estimator

An Android app that performs numerical integration to estimate a device's real-time position.

Project setup

• Install Android Studio
• Install Rust
• Install build toolchains for Android

rustup target add aarch64-linux-android x86_64-linux-android

• Install cargo-ndk

cargo install cargo-ndk

• Specify path to NDK by setting ANDROID_NDK_HOME env variable
• Install sscache for significantly shorter build time

cargo install sccache --locked

• Define build.rustc-wrapper in the cargo configuration file. Add the following to $HOME/.cargo/config.toml or %USERPROFILE%\.cargo\config.toml:

[build]
rustc-wrapper = "~/.cargo/bin/sccache"

Build

Android build is managed by cargo-ndk-android-gradle. Simply click Run 'app' in Android Studio.

It is essentially running the following commands under the hood:

cargo ndk -t arm64-v8a -o app/src/main/jniLibs/  build
./gradlew.bat build
./gradlew.bat installDebug
adb shell am start -n com.mrjohn6774.androidpositionestimator/.MainActivity

Build and run on desktop

cargo run --features="desktop"