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README.android
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README.android
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Prerequisites (verified on Kubuntu 18.04.3):
- Build kstars from source according to https://indilib.org/forum/general/210-howto-building-latest-libindi-ekos.html
- Install Android SDK
- Download and install NDK version android-ndk-r17c.
- Install JDK java-8-openjdk-amd64:
sudo apt-get install openjdk-8-jdk
- Install Qt open source for Android (newest version 5.13.1) under your home directory to be writable.
- After installation of Qt, enter the correct paths to the NDK, JDK and SDK in Tools>Options>Devices>Android and make sure Qt shows no warnings regarding these paths.
- Qt does not work with the newest SDK Tools, you must use v25 as suggested here:
https://stackoverflow.com/questions/42754878/qt-creator-wont-list-any-available-android-build-sdks/42811774#42811774
Basically, download https://dl.google.com/android/repository/tools_r25.2.5-linux.zip and replace the ANDROID_SDK_DIR/tools directory,
or just use the Android SDK download tool to use this version.
- Some tools are needed for the compilation: sudo apt-get install dos2unix ccache subversion ant libconfig-yaml-perl
Edit /etc/environment and add the following environmental variables before building:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:$ANT_HOME/bin"
JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64"
QT_ANDROID="/$HOME/Qt/5.13.1/android_armv7"
CMAKE_ANDROID_NDK="/$HOME/Android/Sdk/ndk/android-ndk-r17c"
ANDROID_NDK="/$HOME/Android/Sdk/ndk/android-ndk-r17c"
ANDROID_SDK_ROOT="/$HOME/Android/Sdk"
ANDROID_API_LEVEL=17
ANDROID_PLATFORM=17
KSTARS_ROOT="/$HOME/Projects/kstars"
ANT_HOME="/usr/share/ant"
If you want to generate signed release package set the following variables:
export ANDROID_KEYSTORE=your_keystore_file
export ANDROID_KEYSTORE_ALIAS=your_keystore_alias
export KSTARS_ROOT=KStars Path (e.g. /$HOME/Projects/kstars)
Configure git (if you haven't done this already):
git config --global user.email "[email protected]"
git config --global user.name "Your Name"
Make a build directory in a separate location form source (e.g. /$HOME/Projects/build/kstars-android):
- Run build_kf5.sh and verify that the script builds everything without any problem.
NOTE: Ki18n often fails to build the first time, but it should succeeds when you rebuild kf5 again.
$KSTARS_ROOT/packaging/android/build_kf5.sh
Configure out-of-source build (MinSizeRel build type is recommended for Android):
cmake -B. -H$KSTARS_ROOT -DBUILD_KSTARS_LITE=ON -DCMAKE_TOOLCHAIN_FILE=$CMAKE_ANDROID_NDK/build/cmake/android.toolchain.cmake \
-DEIGEN3_INCLUDE_DIR=/usr/include/eigen3/ -DCMAKE_INSTALL_PREFIX=$(pwd)/android/export -DCMAKE_BUILD_TYPE=MinSizeRel \
-DECM_DIR=/usr/share/ECM/cmake/ -DCMAKE_PREFIX_PATH=$QT_ANDROID \
-DCMAKE_AR=${ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar
Compile:
make -j4
Download and convert the translations:
make convert_translations_to_android
Install:
make -j4 install
Generate the Android debug package:
make create-apk-debug-kstars
Install the Android debug package to your phone:
make install-apk-debug-kstars
Generate the Android release package:
make create-apk-release-kstars
To sign a release package:
make sign-apk-kstars