# Over-simplistic instructions to building the Android package from source ## In a Container The easiest way to build things is using our container. The following script will download and build the dependencies on the first run of the container, and from there on in re-use the same container to speed up build time: ```.sh #!/bin/bash # Change these to match your setup SUBSURFACE_ROOT= GIT_NAME="" GIT_EMAIL="" CONTAINER_NAME=android-builder-docker # Check if our container exists CONTAINER_ID=$(docker container ls -a -q -f name=${CONTAINER_NAME}) # Create the image if it does not exist if [[ -z "${CONTAINER_ID}" ]]; then docker create -v ${SUBSURFACE_ROOT}:/android/subsurface --name=${CONTAINER_NAME} subsurface/android-build:5.15.2 sleep infinity fi docker start ${CONTAINER_NAME} BUILD_PARAMETERS="" if [[ -n "${CONTAINER_ID}" ]]; then BUILD_PARAMETERS="-quick" else # Prepare the image for first use # Set the git id docker exec -t ${CONTAINER_NAME} git config --global user.name "${GIT_NAME}" docker exec -t ${CONTAINER_NAME} git config --global user.email "${GIT_EMAIL}" fi # Build. Do not rebuild the dependencies if this is not the first build docker exec -e OUTPUT_DIR="/android/subsurface/android-debug" -t ${CONTAINER_NAME} /bin/bash -x ./subsurface/packaging/android/qmake-build.sh ${BUILD_PARAMETERS} # Stop the container docker stop ${CONTAINER_NAME} ``` _Caveat:_ With this build script `libdivecomputer` is pulled from git in the version specified in the submodule, so if you have changed `libdivecomputer` make sure to commit any changes and update the git submodule version before building. ## On a Linux host alternatively you can build locally without the help of our container. Setup your build environment on a Ubuntu 20.04 Linux box I think these packages should be enough: ```.sh sudo apt-get update sudo apt-get install -y \ autoconf \ automake \ cmake \ git \ libtool-bin \ make \ wget \ unzip \ python \ python3-pip \ bzip2 \ pkg-config \ libx11-xcb1 \ libgl1-mesa-glx \ libglib2.0-0 \ openjdk-8-jdk \ curl \ coreutils \ p7zip-full sudo mkdir /android sudo chown `id -un` /android cd /android wget https://dl.google.com/android/repository/commandlinetools-linux-6858069_latest.zip unzip commandlinetools-linux-*.zip git clone https://github.com/subsurface/subsurface # now get the SDK, NDK, Qt, everything that's needed bash /android/subsurface/packaging/android/android-build-setup.sh ``` Once this has completed, you should have a working build environment. ```.sh bash -x subsurface/packaging/android/qmake-build.sh ``` should build a working .aab as well as a .apk that can be installed on your attached device: ```.sh ./platform-tools/adb install ./subsurface-mobile-build/android-build/build/outputs/apk/debug/android-build-debug.apk ``` Note that since you don't have the same signing key that I have, you'll have to uninstalled the 'official' Subsurface-mobile binary in order for this to work. And likewise you have to uninstall yours before you'll be able to install an official binary again.