Build Android app before turning on emulator on Android #1464
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| - name: Build Android app | ||
| working-directory: example/android | ||
| run: ./gradlew assembleDebug |
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If this takes 20 minutes, I would build in a separate job, publish the APK as artifact and then download the artifact separately, or use Gradle cache to make sure the whole building running FROM-CACHE.
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makes a lot of sense
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It looks like the latest version now omits starting the Emulator - but wouldn't we need another build file / step that starts and runs the emulator? Or I'm I misunderstanding that we already have this...? (🫣)
| run: ./gradlew assembleDebug | ||
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| - name: SKDs - download required images | ||
| run: $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager "system-images;android-30;default;x86_64" |
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According to docs the emulator startup time can be greatly reduced by caching, see reactivecircus/android-emulator-runner
Any reason doing this manually?
.github/workflows/android.yml
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| uses: reactivecircus/android-emulator-runner@v2 | ||
| with: | ||
| api-level: 29 | ||
| script: ./gradlew connectedCheck |
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This will still do a full build before deploying the APK and running tests. But I'll leave it up to the team to figure out what you want :)
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@chrfalch This is finally ready for review. It splits the Android build and test into two jobs. That way, if the emulator crashes, which seems to happen on Github actions, we can just restart the testing job without rebuilding the apk. |
Lately the Android Github action has been extremely flaky and it seems like many open source projects are affected by the same issue (see mockito/mockito#2903).
More specifically, the issue if that once we finished to build the app, the emulator is not responsive anymore.
While there doesn't seem to be any great solution for this yet, I was wondering if we should build the app before starting the emulator. One possible cause of this problem is that the github image is so constraint in resources that it may crash the emulator. Overall I think it is good to build the app first anyways, if the CI fails because of a build error, we will get the error much faster.
Another suggestion was to downgrade the Android API version.