Add Android support

.github/workflows/test.yml

@@ -26,14 +26,18 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
         # Latest stable and MSRV. We only run checks with all features enabled
         # for the MSRV build to keep CI fast, since other configurations should also work.
-        rust_version: [stable, "1.71.0"]
+        rust_version: [stable, "1.77.0"]
     steps:
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: ${{ matrix.rust_version }}
           components: clippy
       - uses: actions/checkout@v4
 
+      - name: Add Android target
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: rustup target add x86_64-linux-android
+
       - name: Run `cargo clippy` with no features
         if: ${{ matrix.rust_version == 'stable' }}
         run: cargo clippy --verbose --no-default-features -- -D warnings -D clippy::dbg_macro
@@ -48,6 +52,14 @@ jobs:
 
       - name: Run `cargo clippy` with all features
         run: cargo clippy --verbose --all-features -- -D warnings -D clippy::dbg_macro
+
+      - name: Run `cargo clippy` with no features on Android
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: cargo clippy --target x86_64-linux-android --verbose --no-default-features -- -D warnings -D clippy::dbg_macro
+
+      - name: Run `cargo clippy` with `image-data` feature on Android
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: cargo clippy --target x86_64-linux-android --verbose --no-default-features --features image-data -- -D warnings -D clippy::dbg_macro
 
       - name: Run `cargo clippy` with dependency version checks
         if: ${{ matrix.rust_version == 'stable' }}
@@ -89,7 +101,7 @@ jobs:
     steps:
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
-          toolchain: nightly-2023-10-08
+          toolchain: nightly-2024-01-08
           components: miri
 
       - name: Checkout
@@ -104,3 +116,56 @@ jobs:
     - uses: actions/checkout@v4
     - name: Check semver
       uses: obi1kenobi/cargo-semver-checks-action@v2
+
+  android_emulator:
+    needs: clippy
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: Install `cargo-apk`
+        run: cargo install cargo-apk
+
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Gradle cache
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: AVD cache
+        uses: actions/cache@v4
+        id: avd-cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-29
+
+      - name: create AVD and generate snapshot for caching
+        if: steps.avd-cache.outputs.cache-hit != 'true'
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 29
+          arch: x86_64
+          target: default
+          profile: Nexus 6
+          force-avd-creation: false
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: false
+          script: echo "Generated AVD snapshot for caching."
+
+      - name: Run android example
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 29
+          force-avd-creation: false
+          arch: x86_64
+          target: default
+          profile: Nexus 6
+          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: true
+          script: ./tools/android_test.sh