Build MultihandTracking AAR

source
https://github.com/google/mediapipe/blob/master//docs/getting_started/android_archive_library.md#steps-to-build-a-mediapipe-aar

build with
bazel build -c opt --fat_apk_cpu=arm64-v8a,armeabi-v7a mediapipe/examples/android/src/java/com/google/mediapipe/apps/multihandtrackinggpu_aar:mp_multi_hand_aar

.github/workflows/CI.yml

@@ -21,13 +21,14 @@ jobs:
         run: |
           export ANDROID_HOME=/Users/runner/Library/Android/sdk
           export ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle 
-          echo a | ./build_android_examples.sh
+          bazel build -c opt --fat_apk_cpu=arm64-v8a,armeabi-v7a mediapipe/examples/android/src/java/com/google/mediapipe/apps/multihandtrackinggpu_aar:mp_multi_hand_aar
       - name: Show result
         run: git status
-      - name: Archive APK
+      - name: Search AAR
+        run: find bazel-bin/mediapipe/ -name *.aar | xargs ls -la
+      - name: Archive AAR
         uses: actions/upload-artifact@v2.2.1
         if: ${{ always() }}
         with:
-          name: APKs
-          path: ./*.apk
-          if-no-files-found: error
+          name: AAR-library
+          path: bazel-bin/mediapipe//examples/android/src/java/com/google/mediapipe/apps/**/*.aar

mediapipe/examples/android/src/java/com/google/mediapipe/apps/multihandtrackinggpu_aar/BUILD

@@ -0,0 +1,6 @@
+load("//mediapipe/java/com/google/mediapipe:mediapipe_aar.bzl", "mediapipe_aar")
+
+mediapipe_aar(
+    name = "mp_multi_hand_aar",
+    calculators = ["//mediapipe/graphs/hand_tracking:mobile_calculators"],
+)