Android Build

1. get android ndk (I used r25b) and sdk, gradle also needs to be installed
2. clone

git clone https://github.com/Bauumm/SSVOpenHexagon.git --recursive
cd SSVOpenHexagon
git checkout android_test
git submodule update --recursive

3. build

cd buildlx
cmake -DCMAKE_SYSTEM_NAME=Android -DCMAKE_ANDROID_NDK=path/to/ndk -DCMAKE_ANDROID_ARCH_ABI=armeabi-v7a -DCMAKE_ANDROID_STL_TYPE=c++_static -DCMAKE_BUILD_TYPE=Debug -DVRM_PP_INCLUDE_DIR=../extlibs/vrm_pp/include -DSSVUTILS_INCLUDE_DIR=../extlibs/SSVUtils/include -DSSVMENUSYSTEM_INCLUDE_DIR=../extlibs/SSVMenuSystem/include -DSSVSTART_INCLUDE_DIR=../extlibs/SSVStart/include ..

add JNIEXPORT in front of void ANativeActivity_onCreate in _deps/sfml-src/src/SFML/Main/SFMLActivity.cpp at line 135.

JNIEXPORT void ANativeActivity_onCreate(ANativeActivity* activity, void* savedState, std::size_t savedStateSize)

then run make

4. modify android example

cd _deps/sfml-src/examples/android/

modify build.gradle: classpath 'com.android.tools.build:gradle:3.0.0' to classpath 'com.android.tools.build:gradle:7.1.0' ceate local.properties:

ndk.dir=path/to/ndk
sdk.dir=path/to/sdk

then

cd app

modify build.gradle and remove:

 29     externalNativeBuild {
 30         ndkBuild {
 31             path "src/main/jni/Android.mk"
 32
 33         }
 34     }

(since we want to bundle prebuilt libs and not build with gradle)
also in the same file change compileSdkVersion to 30 and targetSdkVersion to 30 so gradle won't complain, then

cd src/main

modify AndroidManifest.xml to this:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.sfmldev.android"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-feature android:glEsVersion="0x00010001" />

    <application android:label="@string/app_name"
                 android:icon="@drawable/sfml_logo"
                 android:hasCode="false"
                 android:allowBackup="true">

    <activity android:name="android.app.NativeActivity"
              android:label="@string/app_name"
              android:icon="@drawable/sfml_logo"
              android:configChanges="keyboardHidden|orientation|screenSize">

        <meta-data android:name="android.app.lib_name" android:value="sfml-activity-d" />
        <meta-data android:name="sfml.app.lib_name" android:value="SSVOpenHexagon" />

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    </application>
</manifest>

remove example assets and copy our own

cd assets
rm *
cp -r path/To/OH/Assets .
cd ..

Remove example code

rm -r jni

Put in the libs

mkdir jniLibs
mkdir jniLibs/armeabi-v7a
cd jniLibs/armeabi-v7a
cp path/to/oh/buildlx/_deps/sfml-build/lib/libsfml-*.so .
cp path/to/oh/Downloads/ohandrepro/buildlx/_deps/libsodium-cmake-build/libsodium.so .
cp path/to/oh/Downloads/ohandrepro/buildlx/_deps/luajit-build/src/libluajit.so .
cp path/to/oh/Downloads/ohandrepro/buildlx/_deps/sfml-src/extlibs/libs-android/armeabi-v7a/libopenal.so .
cp path/to/oh/Downloads/ohandrepro/buildlx/_deps/zlib-build/libz.so .
cp path/to/oh/Downloads/ohandrepro/buildlx/SSVOpenHexagon libSSVOpenHexagon.so
cd ../../../../..

and finally

gradle build

apk is now at app/build/outputs/apk/debug/app-debug.apk
make sure to copy the Assets and the Packs folder to /storage/self/primary/Android/data/org.sfmldev.android/files otherwise the app will just crash