Fix Android Actions (#3)

* Add android

* Update android pipeline

* Update JDK

* set up toolchain

* Update abi

* More deps

* Add more target

.github/workflows/build.yml

@@ -25,24 +25,35 @@ jobs:
           path: hello/target/HelloFFI.xcframework
           retention-days: 7
 
-  # build_android:
-  #   runs-on: ubuntu-latest
-  #   steps:
-  #     - uses: actions/checkout@v2
-  #       with:
-  #         lfs: true
-  #     - uses: actions/setup-java@v2
-  #       with:
-  #         distribution: 'microsoft'
-  #         java-version: '11'
-  #     - name: Setup Android SDK
-  #       uses: android-actions/setup-android@v2
-  #     - uses: nttld/setup-ndk@v1
-  #       with:
-  #         ndk-version: r21e
-  #     - name: "Build Android library"
-  #       env:
-  #         ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
-  #       run: |
-  #         cd hello/platforms/android/UniffiRustExample
-  #         ./gradlew cargoBuild --info
+  build_android:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          lfs: true
+      - uses: actions/setup-java@v2
+        with:
+          distribution: 'temurin'
+          java-version: 11
+          cache: 'gradle'
+          # Reference: https://github.com/mozilla/rust-android-gradle/blob/master/.github/workflows/check.yml
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v2
+      - uses: nttld/setup-ndk@v1
+        with:
+          ndk-version: r21e
+      - uses: actions-rs/toolchain@v1
+        # Reference: https://github.com/rust-windowing/android-ndk-rs/blob/master/.github/workflows/rust.yml
+        with:
+          toolchain: stable
+          override: true
+          target: aarch64-linux-android
+      - name: "More dependencies"
+        run: |
+          make prepare-android
+      - name: "Build Android library"
+        env:
+          ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
+        run: |
+          cd hello/platforms/android/UniffiRustExample
+          ./gradlew cargoBuild --info

Makefile

@@ -3,4 +3,16 @@ prepare-apple:
 	rustup toolchain install nightly
 	rustup target add aarch64-apple-ios-sim --toolchain nightly && rustup target add aarch64-apple-ios x86_64-apple-ios
 	rustup component add rust-src --toolchain nightly
-	cargo install uniffi_bindgen
+	make install-uniffi-bindgen
+
+prepare-android:
+	rustup toolchain install stable
+	rustup target add x86_64-linux-android
+	rustup target add x86_64-unknown-linux-gnu
+	rustup target add aarch64-linux-android
+	rustup target add armv7-linux-androideabi
+	rustup target add i686-linux-android
+	make install-uniffi-bindgen
+
+install-uniffi-bindgen:
+	cargo install uniffi_bindgen --version 0.17.0