https://flutter.dev/docs/get-started/install/macos

Download Flutter for macOS
Extract

cd ~/development
unzip ~/Downloads/flutter_macos_v1.12.13+hotfix.9-stable.zip
mkdir -p $HOME/development
mv ./flutter $HOME/development/
code ~/.bash_profile

Add to PATH

export PATH="$HOME/development/flutter/bin:$PATH"

Note: Install Flutter this way instead in the polkawallet-flutter folder https://github.com/polkawallet-io/polkawallet-flutter/blob/master/.travis.yml#L15

git clone https://github.com/flutter/flutter.git -b stable
./flutter/bin/flutter doctor
./flutter/bin/flutter doctor --android-licenses

cd ./lib/js_service_kusama && yarn install && yarn run build && cd ../..
cd ./lib/js_service_acala && yarn install && yarn run build && cd ../..
cd ./lib/js_service_laminar && yarn install && yarn run build && cd ../..

Note: If you run git clone https://github.com/flutter/flutter.git -b beta or git clone https://github.com/flutter/flutter.git (master), then you may get errors when you run flutter run --flavor prod like:

../../../../.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:26: Error: Type 'DiagnosticableMixin' not found.
class PictureStream with DiagnosticableMixin {                          
                         ^^^^^^^^^^^^^^^^^^^                            
../../../../.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:44: Error: Type 'DiagnosticableMixin' not found.
abstract class PictureStreamCompleter with DiagnosticableMixin {        
                                           ^^^^^^^^^^^^^^^^^^^ 
...

Preferences > Languages & Frameworks > Dart SDK /Users/ls/code/src/ltfschoen/polkawallet-flutter/flutter/bin/cache/dart-sdk

Preferences > Languages & Frameworks > Flutter /Users/ls/code/src/ltfschoen/polkawallet-flutter/flutter

Refresh terminal

source ~/.bash_profile

Check for dependencies

flutter upgrade
flutter doctor
flutter doctor --android-licenses

Install Android Studio - https://developer.android.com/studio
Open Android Studio
- Open Android Studio > Configure > Plugins > search for "Flutter" and "Dart" and install both
Download Android Command Line Tools - https://developer.android.com/studio/index.html#downloads
Add to PATH

# export ANDROID_HOME=$HOME/.android
export ANDROID_HOME=$HOME/Library/Android/sdk
export ANDROID_SDK_ROOT=$HOME/Library/Android/sdk
export PATH="$ANDROID_SDK_ROOT/tools/bin:$ANDROID_SDK_ROOT/platform-tools:$PATH"

source ~/.bash_profile
echo $ANDROID_HOME
sdkmanager --help
adb --help

Install Xcode
Install Cocoapods

brew reinstall cocoapods
brew link --overwrite cocoapods

Install Dart-Flutter VSCode extension

code --install-extension Dart-Code.flutter

On device do the following otherwise will get error Device xyz is not authorized.
- USB debugging checkbox "enabled"
- Developer Options > Revoke USB Debugging Authorizations
- Default USB configuration > USB tethering
  - Click "OK" in alert that appears labelled "Allow USB debugging?" and select checkbox "Always allow from this computer"
Reconnect device, then agree to RSA Fingerprint verification window
Check if device connected

flutter devices -v
flutter devices

Build according the Polkawallet Flutter README
- babel/babel#11216

nvm use v13.12.0
cd ./lib/js_service_kusama && rm yarn.lock && yarn && yarn run build && cd ../../
cd ./lib/js_service_acala && rm yarn.lock && yarn && yarn run build && cd ../../
cd ./lib/js_service_laminar && rm yarn.lock && yarn && yarn run build && cd ../../

flutter doctor -v
flutter clean
flutter run -v

Uninstall any existing versions of app from the device
Run on the specific device that is connected, where flutter devices returns and id.

flutter run -d 988a1644544349575a30 -v
flutter run -d 988a1644544349575a30 -v --observatory-port 8888 --disable-service-auth-codes lib/main.dart

To hot reload changes while running, press "r". To hot restart (and rebuild state), press "R".

flutter packages pub run build _runner watch

Build APK

Build apk. See https://flutter.dev/docs/deployment/android#build-an-apk

Sign app

Create keystore

keytool -genkey -v -keystore ~/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key

Reference keystore from app

touch ./android/key.properties

Add to .gitignore

/android/key.properties

Add to contents of key.properties file:

storePassword=
keyPassword=
keyAlias=key
storeFile=/Users/ls/key.jks

Add password that was used when running keytool in sections above

Edit /android/app/build.gradle

Replace with:

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
            // storeFile rootProject.file("app/key.jks")
            // storePassword System.getenv("APPCENTER_KEYSTORE_PASSWORD")
            // keyAlias System.getenv("APPCENTER_KEY_ALIAS")
            // keyPassword System.getenv("APPCENTER_KEY_PASSWORD")
        }
    }

Build APK

flutter build apk --split-per-abi

Upload APK files to https://drive.google.com/drive/u/1/folders/1-QmI0dhlhw6jXqwIuQuuNqZi3uny5hvu, those that were generated in: build/app/outputs/apk/release/

Build for AppCentre

Go to https://appcenter.ms/orgs/MXC-Foundation-gGmbH/apps/DHXDashAndroid/build/branches

Follow the "AppCentre Setup" instructions here https://buildflutter.com/deploying-flutter-apps-via-appcenter/

Add all environment variables from .env file

Notify "Collaborators/QA"

Troubleshooting

Restart device and computer (still get issues)
Run the flutter channel master; flutter upgrade before running flutter run ...
- See https://github.com/flutter/flutter/wiki/Flutter-build-release-channels
Debug device logs by running the following in a different terminal window

adb shell

> logcat

adb kill-server

Or run the following before running on device to see what Observatory port is connected

adb logcat -e flutter\|Observatory
adb logcat -e flutter\|Observatory *:I

I've gone through these related issues:

flutter/flutter#25455 flutter/flutter#33214 flutter/flutter#19770 flutter/flutter#51269 https://medium.com/flutter-community/hot-reload-for-flutter-integration-tests-e0478b63bd54

IGNORE THE BELOW

Install VS Code Flutter Dart from https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✗] Xcode - develop for iOS and macOS ✗ Xcode installation is incomplete; a full installation is necessary for iOS development. Download at: https://developer.apple.com/xcode/download/ Or install Xcode via the App Store. Once installed, run: sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer sudo xcodebuild -runFirstLaunch ✗ CocoaPods not installed. CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side. Without CocoaPods, plugins will not work on iOS or macOS. For more info, see https://flutter.dev/platform-plugins To install: sudo gem install cocoapods

Setup Android Device
- Enable USB Debugging
- Plugin the device using USB
- Run flutter devices to check Flutter recognizes the device
Configure graphics acceleration - https://developer.android.com/studio/run/emulator-acceleration
- AVD Manager > Create Virtual Device > Pixel 2 > Android 9

iOS - flutter attach --debug-uri - flutter/flutter#33214 (comment)

flutter emulators --create --name pixel

sdkmanager "system-images;android-27;google_apis_playstore;x86

ltfschoen/flutter.md

Build APK

Build for AppCentre

Troubleshooting

IGNORE THE BELOW