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Hello world example for Android.

examples/hello_android/README.md

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Hello world example for Android.

Desktop pre-requisites

Android application require you to have toolchains and Android SDK installed:

  1. rustup target add armv7-linux-androideabi aarch64-linux-android - install targets for android
  2. Set environment variables (these variables are required each time for cargo apk):
sh
export ANDROID_HOME="$HOME/tools/android"
export ANDROID_NDK_ROOT="${ANDROID_HOME}/ndk/29.0.14206865"
export PATH="$PATH:${ANDROID_NDK_ROOT}:${ANDROID_HOME}/build-tools/${BUILDTOOLS_VERSION}:${ANDROID_HOME}/cmdline-tools/bin"
  1. Install command line tools:
sh
mkdir -p "${ANDROID_HOME}/cmdline-tools"
curl -sLo /tmp/clt.zip https://dl.google.com/android/repository/commandlinetools-linux-14742923_latest.zip
unzip -d "${ANDROID_HOME}" /tmp/clt.zip
  1. Install SDK components: sdkmanager --sdk_root="${ANDROID_HOME}" --install "build-tools;36.0.0" "ndk;29.0.14206865" "platforms;android-35"

You may need to change SDK versions

  1. Install cargo-apk: cargo install --git https://github.com/parasyte/cargo-apk.git --rev 282639508eeed7d73f2e1eaeea042da2716436d5 cargo-apk

There was a bug in the upstream, so the above installs a patched version.

Build & run

Use cargo-apk to build and run:

  1. On android: cargo apk run -p hello_android --lib
  2. On desktop: cargo run -p hello_android