feat: Add Android support (#72)

Author: DataTriny

.github/workflows/ci.yml

@@ -27,6 +27,16 @@ jobs:
         with:
           clang-format-version: 15
 
+      - uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+
+      - name: check Java formatting
+        uses: axel-op/googlejavaformat-action@v4
+        with:
+          args: "--aosp --set-exit-if-changed"
+
   clippy:
     runs-on: ${{ matrix.os }}
     strategy:
@@ -70,6 +80,8 @@ jobs:
           - target: x86_64-pc-windows-msvc
           - target: x86_64-unknown-linux-gnu
           - target: x86_64-unknown-linux-musl
+          - target: aarch64-linux-android
+          - target: x86_64-linux-android
 
     name: cargo-deny ${{ matrix.target }}
     runs-on: ubuntu-22.04

.github/workflows/publish.yml

@@ -51,6 +51,14 @@ jobs:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
             path: linux/x86_64
+          - os: ubuntu-latest
+            target: aarch64-linux-android
+            cmake-options: -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-28
+            path: android/arm64-v8a
+          - os: ubuntu-latest
+            target: x86_64-linux-android
+            cmake-options: -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake -DANDROID_ABI=x86_64 -DANDROID_PLATFORM=android-28
+            path: android/x86_64
 
     name: Build
     steps:

.gitignore

@@ -1,3 +1,4 @@
 build
 lib
 target
+.cxx

CMakeLists.txt

@@ -4,6 +4,7 @@ project(accesskit-c)
 
 option(ACCESSKIT_BUILD_HEADERS "Whether to build header files" OFF)
 option(ACCESSKIT_BUILD_LIBRARIES "Whether to build libraries" ON)
+option(ACCESSKIT_ANDROID_EMBEDDED_DEX "Whether to embed the classes.dex file in the library (Android only)" OFF)
 
 if (ACCESSKIT_BUILD_LIBRARIES)
     include(FetchContent)
@@ -19,6 +20,9 @@ if (ACCESSKIT_BUILD_LIBRARIES)
     set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
     set(CMAKE_PDB_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
     corrosion_import_crate(MANIFEST_PATH Cargo.toml)
+    if (ACCESSKIT_ANDROID_EMBEDDED_DEX)
+        corrosion_set_features(accesskit FEATURES android-embedded-dex)
+    endif()
 endif()
 
 if (ACCESSKIT_BUILD_HEADERS)