✅ React Native To-Do App

A minimal and efficient To-Do app built using React Native (TypeScript) with support for:

• 📋 Adding, updating, and deleting tasks
• 🔐 Firebase authentication with Google sign-in
• ☁️ Realtime Firestore database for storing tasks
• 💾 Local storage fallback to persist tasks offline

---

🚀 Features

• ✍️ Add new tasks
• 🔁 Update existing tasks
• ❌ Delete tasks
• 🔒 Google Sign-In using Firebase Authentication
• ☁️ Sync tasks to Firebase Firestore
• 💡 Uses local storage as a backup mechanism

---

🛠️ Tech Stack

Technology	Purpose
React Native	Cross-platform mobile development
TypeScript	Static typing for improved DX
Firebase Auth	Google Sign-In for authentication
Firestore DB	Store and sync tasks in the cloud
AsyncStorage	Persist tasks locally
React Navigation	Navigation between screens

---

📦 Installation

1. Clone the Repo

git clone https://github.com/tanmayvaij/rntodo.git
cd rntodo

2. Install Dependencies

npm install
# or
yarn install

3. Run the App

npx react-native run-android
# or for iOS
npx react-native run-ios

Make sure Metro is running:

npx react-native start

---

🔐 Authentication

• Google Sign-In is handled via Firebase Auth.
• On successful login, user session is stored and tasks are fetched from Firestore.

---

🧠 Local Storage

• Tasks are cached using AsyncStorage for offline support and faster load times.
• Syncs with Firestore on login and task changes.