Flutter PWA Wrapper

Wrapping your website in a native app with native push notifications and communication to the "inner" JavaScript!

Setup

1. Install Flutter.
2. Go to main.dart and edit SETTINGS:

class SETTINGS {
  static const title = 'Flutter PWA Wrapper';
  static const url = 'https://bettysteger.com/flutter_pwa_wrapper/demo/'; 
}

Set-up Push Notifications

1. Create Firebase App

Register an iOS App, add your Apple bundle ID and download GoogleService-Info.plist. Open ios/Runner.xcodeproj. Move the GoogleService-Info.plist inside the Runner folder. You can ignore the next instructions in the Firebase setup wizard. Follow these instructions instead!

1. Debugging

Either do a flutter run in the console (will open iOS simulator if no device is connected) or Run > Start Debugging in VSCode (install Flutter extension).

Run the flutter app on your iOS device and click "Enable Notification" from the demo page. Copy the device token to the Firebase Cloud Messaging > Compose notification > Send test message:

How to use in JavaScript

See demo:

/**
 * This function is called by Flutter after `Notification.requestPermission` below is executed
 */
function setPushToken(token) { 
  // save token to current logged-in user in your DB 
} 

Notification.requestPermission()

Development

Run

Either do a flutter run in the console (will open iOS simulator if no device is connected) or Run > Start Debugging in VSCode (install Flutter extension).

Add a plugin

flutter pub add firebase_core

Generate app icons & splash screen

See flutter_launcher_icons

flutter pub run flutter_launcher_icons:main

See splash_screen_view

flutter pub run splash_screen_view:create

Build ios

flutter build ipa && open build/ios/archive/Runner.xcarchive

Build android

Signed with /Applications/Android\ Studio.app/Contents/jre/jdk/Contents/Home/bin/keytool -genkey -v -keystore keys/keystore.jks -keyalg RSA -keysize 2048 -validity 10000 -alias FlutterApp

flutter build appbundle --release --no-tree-shake-icons && open build/app/outputs/bundle/release/