Only Kids (Flutter)

A Flutter project for the Only Kids hairdressing salon.

Getting Started

• flutter run - run in dev mode
• flutter run --profile
• flutter run --release

Deploying Firestore security rules

• firebase deploy --only firestore:rules

Deploying Storage security rules

• firebase deploy --only storage

Signing and building the app for Android

Generating SHA certificate fingerprint

Make keytool available in the path: C:\"Program Files"\Android\"Android Studio"\jre\bin\

Debug Key

• cd c:\"Program Files (x86)"\Java\jre1.8.0_201\bin
• keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore
• Enter keystore password: android
• Copy the SHA1 and add it to Firebase project settings

Release Key

• Generate the release key: keytool -genkey -v -keystore c:/Users/<username>/key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias key
• Obtain the release key from keystore: keytool -exportcert -list -v -alias <your-key-name> -keystore %USERPROFILE%\key.jks
• Copy the release SHA1 and add it to Firebase project settings

Published app

• Obtain the key from Google Play console
• Copy the key to Firebase project settings

Building Android AppBundle

• flutter build appbundle - build Android app bundle

Configuring multiple environments

• Configure multiple firebase projects

CI/CD

• How to Load Firebase Config in CodeMagic with Environment Variables:

  1. Encode google-services.json to base64: certutil -encode google-services.json google-services-base64.json
  2. Add ANDROID_FIREBASE_JSON environment variable to the codemagic workflow and paste the base64 encoded file contents as a value
  3. Add prebuild script:

     #!/bin/sh
     echo $ANDROID_FIREBASE_JSON | base64 --decode > $FCI_BUILD_DIR/android/app/google-services.json

  Fix: base64 command not found. Clear the spaces between base64 and --decode(by using the backspace key until the 4 in base64 deletes — as this signals that all Unicode characters are deleted) then add the 4 and the space back in again

• Publish To Google Play

Cloud Functions

• firebase deploy --only functions