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Badger Mobile Wallet

Your gateway to the world of Bitcoin Cash (BCH) apps.

Badger Mobile Wallet is a Bitcoin Cash (BCH) and Simple Ledger Protocol (SLP) wallet. Designed to be simple and straightforward to highlight exciting world of BCH and SLP.

Feature Highlights

• BCH Wallet
  • Wallet on 145 derivation path
  • Multi-currency fiat conversions for display
• SLP vault
  • Wallet on 245 derivation path
  • All of your SLP tokens in one place
• BIP70 support
  • BCH
  • SLP
• Paper wallet wif sweeping
  • BCH - Bitcoin Cash paper wallets
  • SLP - Simple Token paper wallets

Application Overview

Primary Technology

• react-native
  • redux
  • react-navigation
  • styled-components
• bcash (Bitcoin Cash version of bcoin)
• prettier
• yarn
• TypeScript

File Structure

• /
  • Configuration files and project setup
  • assets/
    • Images and fonts packaged with the app
  • /atoms/
    • Lowest level UI components, such as Text, Buttons, Spacer, etc
  • /components/
    • UI components used throughout the app, should be mainly composed of atoms with additional logic
  • /data/
    • The redux store, and all data management logic
  • /navigation/
    • The router of the application
  • /screens/
    • Top level screens, these are what the navigation renders
  • /themes/
    • App color files
  • /hooks/
    • Custom react hooks
  • /utils/
    • Utility methods, mainly for Bitcoin Cash (BCH) related logic
  • /ios/
    • iOS specific project files, modify these through xCode
  • /android/
    • Android specific project files

Data

All data which lives longer than a single screen is stored in redux, the structure of which can be found in the /data folder.

Local State and React Lifecycle

Only use Functional Components with React and stick to using the hook paradigm; except for rare exceptions.
Keeping the entire app on this single pattern will make the code more consistent, future-proof, and easier to maintain.

Styling

All styling is done with the styled-components library.
Most of the base components we reuse should be turned into atoms and put into the /atoms folder.

To reuse variables throughout the app (like colo and spacing), define them in one of the ./themes files.

Navigation

Navigation is managed with the react-navigation library. To contain the logic of navigation in a single place, keep all navigation and router setup in the /navigation folder.

Development Setup

This project use react-native. Please refer to the React Native documentation to get the iOS or Android emulator installed and running before running badger-mobile

Run Local Tests

yarn test

Initial Setup

• React Native Getting Started Docs
• Install TypeScript
• Install iOS/Android emulators
• Install cocoapods if running on iOS
• Be sure to set $PATH if running on Android

iOS Setup

> yarn install
> cd ios
> pod install
> cd ..
> yarn run ios

Different iOS Device

> yarn run ios --simulator="iPhone 11 Pro Max"
> yarn run ios --simulator="iPhone 11 Pro"
> yarn run ios --simulator="iPhone 8 Plus"
> yarn run ios --simulator="iPhone 6"
> yarn run ios --simulator="iPhone SE"
> yarn run ios --simulator="iPhone X"

iOS Store Deployment

1. Load project in XCode
2. Update version & build numbers
3. Product > archive project
4. Sign with deployment keys
5. Go to the Apple web console to create release
6. Test on testflight
7. Release to production

Android Setup

Generate Debug Keystore

• Required for local development
• Generate a debug keystore in android/app
  1. cd android/app
  2. keytool -genkey -v -keystore debug.keystore -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000

Setup Release Keystore

1. Required for releases
2. Follow the steps to sign an apk
3. generate or place the badger-mobile-release.keystore file and put into /android/app
   • Get this from the project lead
4. update android/gradle.properties with the keystore filename and password. Template below.

gradle.properties Template

MYAPP_RELEASE_STORE_FILE=badger-mobile-release.keystore
MYAPP_RELEASE_KEY_ALIAS=badger-mobile-release
MYAPP_RELEASE_STORE_PASSWORD= - - - - - - - - - -
MYAPP_RELEASE_KEY_PASSWORD= - - - - - - - - - -

• Suggestion to not commit secrets by mistake: git update-index --assume-unchanged android/gradle.properties

Android Local Install

> yarn install
> Start an Android device - either
  > Android emulator from Android Studio
  > Physical device with USB debugging enabled
> yarn run jetify
 > jetify only required once
> yarn run android

Create Bundles'n'Builds

• Increment versionCode in android/app/build.gradle
• Build .apk
  • The .apk file is good for distributing online, or for sending to people direct to sideload.
  • > yarn run android-build
• Bundle the build
  • The bundle is be used to distributed on the Play Store.
  • > yarn run android-bundle

Android Store Deployment

• Go to Play console
• Upload the bundle to a new internal test release
• Launch to internal test group
• QA - and testing
• Fix issues, repeat from beginning
• Launch to beta
• Launch to production
• Update the universal .apk on badger.bitcoin.com