how to sign android packages

[louiesun]

I use github actions.

name: CI
on:
  pull_request:
  push:
    branches:
      - main  # update to match the default branch for your repo

# Cancel active CI runs for a PR before starting another run
concurrency:
  group: ${{ github.workflow}}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

env:
  FORCE_COLOR: "1"

defaults:
  run:
    shell: bash

jobs:
  ci:
    name: Test and Package
    runs-on: ${{ matrix.runs-on }}
    strategy:
      fail-fast: false
      matrix:
        target: [ "Android"]
        include:
          - target: "Android"
            output-format: "Gradle"
            runs-on: "ubuntu-latest"
            pre-command: |
              # Enable KVM permissions for the emulator
              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
            briefcase-run-args: >-
              --device '{"avd":"beePhone"}'
              --shutdown-on-exit
              --Xemulator=-no-window
              --Xemulator=-no-snapshot
              --Xemulator=-no-audio
              --Xemulator=-no-boot-anim

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.12"  # update with your targeted Python version

      - name: Install Briefcase
        run: |
          python -m pip install -U pip setuptools wheel
          python -m pip install briefcase

      - name: Setup Environment
        run: |
          # Use GitHub's preinstalled JDK 17 for Android builds
          echo JAVA_HOME="${JAVA_HOME_17_X64:-$JAVA_HOME_17_arm64}" | tee -a ${GITHUB_ENV}
          ${{ matrix.pre-command }}

      - name: Build App
        run: |
          ${{ matrix.briefcase-build-prefix }} \
          briefcase build \
            ${{ matrix.platform || matrix.target }} \
            ${{ matrix.output-format }} \
            --test --no-input --log \
            ${{ matrix.briefcase-args }} \
            ${{ matrix.briefcase-build-args }}

      - name: Test App
        run: |
          ${{ matrix.briefcase-run-prefix }} \
          briefcase run \
            ${{ matrix.platform || matrix.target }} \
            ${{ matrix.output-format }} \
            --test --no-input --log \
            ${{ matrix.briefcase-args }} \
            ${{ matrix.briefcase-run-args }}

      - name: Package App
        run: |
          ${{ matrix.briefcase-package-prefix }} \
          briefcase package \
            ${{ matrix.platform || matrix.target }} \
            ${{ matrix.output-format }} \
            --update --adhoc-sign --no-input --log \
            ${{ matrix.briefcase-args }} \
            ${{ matrix.briefcase-package-args }}

      - name: Upload App
        # Briefcase cannot create iOS artefacts; instead, apps
        # must be packaged and published for iOS through Xcode.
        if: matrix.target != 'iOS'
        uses: actions/upload-artifact@v4
        with:
          name: App-${{ matrix.target }}
          path: dist
          if-no-files-found: error

      - name: Upload Log
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: Log-Failure-${{ matrix.target }}
          path: logs/*

I use varieties of programmes to sign the apk but it says passwork is wrong.
When i install it on my device, it says info is null.

[louiesun]

Failed to install on miui even after signed.

Pachage info is null 

[rmartin16]

Some directions for signing Android packages is available on Briefcase RTD:

https://briefcase.readthedocs.io/en/stable/how-to/code-signing/android.html

Largely, though, this information is contained in Google's Android documentation.

[louiesun]

But I failed to isntall it on MIUI.
I can't provide it since it's too large I think.
The aab is from here

[rmartin16]

You will need to explain exactly what you are trying to and exactly what is not working. Saying "it failed" and "doesn't work" doesn't provide any information we can really respond to meaningfully. Provide the commands and steps you are completing to sign your Android package and any information about the install. Additionally, since MIUI is a custom version of Android, perhaps Xiaomi's docs have more information about signing and installing packages. Finally, the AAB package is for submitting your app to the Google Play Store. If you need a version of your app to sideload on to a device, I would try using an APK.

[louiesun]

I use apk. I first conver aab to pks and extract a apk (arm v8a) from it.

[louiesun]

This is the command to sign.

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore D:\APPS\AndroidFrag\.android\upload-key-helloworld.jks  TLSfragment-0.0.1.aab upload-key -storepass android   

[Lanius-collaris]

Please use apksigner of Android SDK. briefcase has downloaded it when building. 🤦jarsigner doesn't support APK signature scheme v2 and v3, and Android 11 no longer supports APK Signature Scheme v1.

[louiesun]

upload-key-helloworld.jks.txt

this is the jws file(delete .txt)

[louiesun]

adb: failed to install C:\Users\Dev C\Desktop\TLSfragment.apk: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Failed to collect certificates from /data/app/vmdl474590255.tmp/base.apk: Attempt to get length of null array]

I don't think it is caused by signature since this is the error information when I install it with adb.

[rmartin16]

This error says the APK is not signed. Did you sign the APK? The command above is for signing an AAB.

[louiesun]

Uploading TLSfragment.apk.zip…
apk file.