Example to build apk with android sdk

Dockerfile

@@ -0,0 +1,10 @@
+FROM beigirad/tiny-android
+RUN apt-get update -qq && apt-get install -y --no-install-recommends \
+    cmake ninja-build openjdk-11-jdk wget unzip python3 && apt-get clean && rm -rf /var/lib/apt/lists/*
+# Install Gradle 7.5 (compatible with Android Gradle plugin 7.2.1)
+RUN wget -q https://services.gradle.org/distributions/gradle-7.5-bin.zip -O /tmp/gradle.zip && \
+    unzip -q /tmp/gradle.zip -d /opt && \
+    rm /tmp/gradle.zip
+ENV GRADLE_HOME=/opt/gradle-7.5
+ENV PATH=$PATH:$GRADLE_HOME/bin
+WORKDIR /workspace

Source/Application/CMakeLists.txt

@@ -1,8 +1,12 @@
 # Include source files.
 file (GLOB_RECURSE SOURCE_FILES *.h *.cpp)
 
-# Add dynamic or static library.
-add_library (${APP_PLUGIN_NAME} ${SOURCE_FILES})
+if (ANDROID)
+    add_library(${APP_PLUGIN_NAME} STATIC ${SOURCE_FILES})
+    target_compile_definitions(${APP_PLUGIN_NAME} PRIVATE URHO3D_STATIC=1)
+else()
+    add_library(${APP_PLUGIN_NAME} ${SOURCE_FILES})
+endif ()
 
 # Link the engine and dependencies.
 target_link_libraries (${APP_PLUGIN_NAME} PRIVATE

android/assets/Cache/common_cache.txt

@@ -0,0 +1 @@
+When editor import files it will place assets in the Cache folder.

android/assets/ResourceRoot.ini

@@ -0,0 +1,3 @@
+CoreData=CoreData
+Data=Data
+Cache=Cache

android/build.gradle

@@ -2,9 +2,10 @@ apply plugin: 'com.android.application'
 
 // Relative path to engine source code directory. Modify as required.
 def projectSourceDir = '..'
-// Relative path to project source code directory. Modify as required.
-def rbfxSourceDir = '../3rdParty/rbfx'
+// Relative path to engine source code directory. Modify as required.
+def sdkPath = '../rebelfork-sdk-android-clang-arm64-dll-latest'
 // Minimum required CMake version. This is same as in ../CMakeLists.txt.
+def cmakeSdkPath = '"$projectDir/../../../rebelfork-sdk-android-clang-arm64-dll-latest"'
 def cmakeVersion = '3.22.0.0+'
 
 buildscript {
@@ -28,12 +29,15 @@ android {
         minSdkVersion 17
         targetSdkVersion 32
         ndk {
-            abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86_64'
+            abiFilters 'arm64-v8a'
         }
         externalNativeBuild {
             cmake {
-                arguments '-DANDROID_STL=c++_static', '-DANDROID_PLATFORM=android-21', '-DANDROID=1',
-                          '-DANDROID_ARM_MODE=arm', '-DBUILD_SHARED_LIBS=OFF'
+                arguments '-DANDROID_STL=c++_shared', '-DANDROID_PLATFORM=android-21', '-DANDROID=1',
+                          '-DANDROID_ARM_MODE=arm', '-DBUILD_SHARED_LIBS=ON',
+                          '-DCMAKE_PREFIX_PATH=' + new File(projectDir, '../rebelfork-sdk-android-clang-arm64-dll-latest/share').absolutePath,
+                          '-DUrho3D_DIR=' + new File(projectDir, '../rebelfork-sdk-android-clang-arm64-dll-latest/share/Urho3D/CMake').absolutePath,
+                          '-DPACKAGE_TOOL_EXECUTABLE=python3 ' + new File(projectDir, '../rebelfork-sdk-android-clang-arm64-dll-latest/bin/PackageTool.py').absolutePath
             }
         }
     }
@@ -52,7 +56,7 @@ android {
     }
     sourceSets.main {
         manifest.srcFile 'AndroidManifest.xml'
-        java.srcDirs = ['src', "${rbfxSourceDir}/Source/ThirdParty/SDL/android-project/app/src/main/java"]
+        java.srcDirs = ['src', "${sdkPath}/share/Urho3D/Android/java"]
         res.srcDirs = ['res', "${projectSourceDir}/StoreArt/Android/Icons"]
         assets.srcDirs = ['assets', "${projectSourceDir}/Project"]
     }

build-android.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+set -e
+
+echo "=== RebelFork Android Build ==="
+
+if [ ! -f "CMakeLists.txt" ] || [ ! -d "android" ]; then
+    echo "Error: run from project root"
+    exit 1
+fi
+
+# Download SDK only if not already extracted
+SDK_DIR="rebelfork-sdk-android-clang-arm64-dll-latest"
+if [ ! -d "$SDK_DIR" ]; then
+    echo "Downloading SDK..."
+    rm -f rebelfork-sdk-android-clang-arm64-dll-latest.7z
+    if command -v wget >/dev/null 2>&1; then
+        wget -q https://github.com/rbfx/rbfx/releases/download/latest/rebelfork-sdk-android-clang-arm64-dll-latest.7z -O rebelfork-sdk-android.7z
+    elif command -v curl >/dev/null 2>&1; then
+        curl -sL https://github.com/rbfx/rbfx/releases/download/latest/rebelfork-sdk-android-clang-arm64-dll-latest.7z -o rebelfork-sdk-android.7z
+    else
+        echo "Error: wget or curl required"
+        exit 1
+    fi
+    echo "Extracting SDK..."
+    7z x rebelfork-sdk-android.7z -o. -y > /dev/null
+    rm -f rebelfork-sdk-android.7z
+else
+    echo "SDK already present, skipping download"
+fi
+
+# Add coredata (should this be part of the SDK?)
+cp -r ../rbfx/bin/CoreData Project/
+
+# Docker
+if ! command -v docker >/dev/null 2>&1; then
+    echo "Error: docker not found"
+    exit 1
+fi
+
+# Build Docker image
+echo "Building Docker image..."
+docker build -t rbfx-android-builder-slim .
+
+# Submodules
+if [ -f ".gitmodules" ]; then
+    git submodule sync
+    git submodule update --init --recursive
+fi
+
+# Build
+echo "Building..."
+docker run --rm \
+  -v "$PWD:/workspace" \
+  -w /workspace \
+  rbfx-android-builder-slim \
+  bash -c "
+    set -e
+    cd android
+    gradle assembleDebug
+    chown -R $(id -u):$(id -g) /workspace
+  "
+
+# Report
+echo "=== Result ==="
+find android -name "*.apk" 2>/dev/null && echo "Build succeeded" || echo "No APK found"