Todo — Android App

Finally, todos that judge you.

A full-stack Android productivity app built entirely in Java with Android Studio. Features Google Sign-In, real-time cloud sync, priority management, AdMob monetization, and a premium subscription flow.

---

Screenshots

Login	Home	Add Task

---

Features

• Google Sign-In — One-tap authentication via Firebase Auth
• Real-time Sync — Tasks stored and synced instantly using Cloud Firestore
• Priority Management — High, Medium, and Low priority levels with color indicators
• Category Tagging — Organize tasks by Work, Personal, Health, or Other
• Live Dashboard — Total, Done, and Pending stats update in real time
• Add Task Bottom Sheet — Clean Material Design interface with priority and category chips
• Swipe to Delete — Swipe left or right with undo support via Snackbar
• AdMob Integration — Banner ads for free users
• Go Premium — Remove ads with a monthly subscription via Google Play Billing v6
• Profile Photo — Loaded from Google account using Glide
• Offline-aware — Firestore handles offline caching automatically

---

Tech Stack

Layer	Technology
Language	Java
IDE	Android Studio
Authentication	Firebase Auth (Google Sign-In)
Database	Cloud Firestore (real-time)
Ads	Google AdMob
Billing	Google Play Billing v6
Image Loading	Glide
UI Components	Material Design 3
Min SDK	24 (Android 7.0)
Target SDK	34 (Android 14)

---

Project Structure

app/src/main/
├── java/com/utkarsh/todo/
│   ├── SplashActivity.java          # Branded splash screen
│   ├── LoginActivity.java           # Google Sign-In screen
│   ├── MainActivity.java            # Main dashboard
│   ├── AddTaskBottomSheet.java      # Bottom sheet for adding tasks
│   ├── TodoAdapter.java             # RecyclerView adapter
│   ├── TodoItem.java                # Task data model
│   ├── FirestoreManager.java        # All Firestore operations
│   ├── PremiumManager.java          # Play Billing subscription
│   ├── SwipeToDeleteCallback.java   # Swipe gesture handler
│   └── TodoApp.java                 # Application class (AdMob init)
├── res/
│   ├── layout/
│   │   ├── activity_splash.xml
│   │   ├── activity_login.xml
│   │   ├── activity_main.xml
│   │   ├── item_todo.xml
│   │   └── bottom_sheet_add_task.xml
│   ├── drawable/                    # Vector icons and backgrounds
│   └── values/                      # Colors, strings, themes
└── AndroidManifest.xml

---

Getting Started

Prerequisites

• Android Studio Hedgehog (2023.1.1) or newer
• JDK 8 or higher
• A Firebase project
• A Google AdMob account
• A Google Play Console account (for billing)

Setup

1. Clone the repository

git clone https://github.com/UtkarshSahu9906/Todo-do-the-thing.git
cd Todo-do-the-thing

2. Firebase Setup

1. Go to Firebase Console
2. Create a new project
3. Add an Android app with package name com.utkarsh.todo
4. Download google-services.json and place it in the app/ folder
5. Enable Google Sign-In under Authentication → Sign-in method
6. Create a Firestore Database (start in test mode)

3. Firestore Security Rules

Paste these rules in Firestore → Rules:

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /users/{userId}/{document=**} {
      allow read, write: if request.auth != null
                         && request.auth.uid == userId;
    }
  }
}

4. AdMob Setup

Replace the test IDs in the project with your real IDs:

• AndroidManifest.xml → com.google.android.gms.ads.APPLICATION_ID
• MainActivity.java → adView.setAdUnitId(...)

Test IDs are already set for development. Do not use test IDs in production.

5. Play Billing (Optional)

1. Upload a signed APK/AAB to Google Play Console
2. Go to Monetize → Subscriptions → Create subscription
3. Set Product ID to premium_monthly
4. Set your price and activate

6. Build and Run

./gradlew assembleDebug

Or press Run in Android Studio.

---

Dependencies

// Firebase
implementation platform('com.google.firebase:firebase-bom:32.7.0')
implementation 'com.google.firebase:firebase-auth'
implementation 'com.google.firebase:firebase-firestore'

// Google Sign-In
implementation 'com.google.android.gms:play-services-auth:20.7.0'

// Material + AndroidX
implementation 'com.google.android.material:material:1.11.0'
implementation 'androidx.appcompat:appcompat:1.6.1'
implementation 'androidx.recyclerview:recyclerview:1.3.2'

// AdMob
implementation 'com.google.android.gms:play-services-ads:22.6.0'

// Play Billing
implementation 'com.android.billingclient:billing:6.1.0'

// Image Loading
implementation 'com.github.bumptech.glide:glide:4.16.0'
implementation 'de.hdodenhof:circleimageview:3.1.0'

---

Free vs Premium

Feature	Free	Premium
Google Sign-In	✅	✅
Cloud sync (Firestore)	✅	✅
Priority + Categories	✅	✅
Swipe to delete	✅	✅
Banner ads	Shown	✅ Removed
Upgrade banner	Shown	✅ Removed
Crown badge	❌	✅

---

Permissions

Permission	Reason
INTERNET	Firebase, AdMob, billing
POST_NOTIFICATIONS	Download progress (Android 13+)

---

License

Copyright (c) 2024 Utkarsh Sahu. All Rights Reserved.

This software and its source code are the exclusive property of Utkarsh Sahu.

No part of this software — including but not limited to the source code,
design, logic, or assets — may be copied, modified, merged, published,
distributed, sublicensed, sold, or otherwise used in any form, whether
commercial or non-commercial, without the express prior written permission
of the author.

Viewing the source code on GitHub does not grant any rights to use,
copy, modify, or distribute it.

Unauthorized use, reproduction, or distribution of this software is strictly
prohibited and may result in civil and criminal legal action.

For licensing or collaboration inquiries, contact:
utkarshsahu9906@gmail.com

---

Author

Utkarsh Sahu
Android Developer
LinkedIn · GitHub

---

Built with Java. Shipped with pride. Zero Kotlin. No excuses.