Create a Flutter .apk and .ipa file to upload it to Firebase App Distribution

README.md

• Put build.sh in ./your-flutter-project-directory/build.sh
• Put ExportOptions.plist in ./your-flutter-project-directory/ios/ExportOptions.plist
• Run ./build.sh

build.sh

flutter build apk
flutter build ios
rm -rf build/export
mkdir -p build/export
cp build/app/outputs/apk/release/app-release.apk build/export
cd ios
xcodebuild -workspace Runner.xcworkspace -scheme Runner -sdk iphoneos -configuration Release archive -archivePath $PWD/build/Runner.xcarchive
xcodebuild -exportArchive -archivePath $PWD/build/Runner.xcarchive -exportOptionsPlist ExportOptions.plist -exportPath $PWD/build/Runner.ipa -allowProvisioningUpdates
cd ..
cp ios/build/Runner.ipa/Runner.ipa build/export
open build/export

ExportOptions.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>method</key>
        <string>ad-hoc</string>
        <key>uploadBitcode</key>
        <false/>
        <key>uploadSymbols</key>
        <true/>
    </dict>
</plist>

Bad state: No element

The ExportOptions.plist is incomplete.