Android Developer – 100+ Lab Exercises (Basic, Intermediate, Advanced)

🔰 Basic Level (30+ Exercises)

Goal: Establish a foundation in Android Studio, layouts, UI controls, and Java/Kotlin basics.

Environment Setup & Basics

• Install Android Studio and SDK.

• Create your first “Hello World” app.

• Understand Android project structure.

• Run app on emulator & physical device.

• Understand activity lifecycle.

UI Design and Components

• Design Linear, Relative, Constraint layouts.

• Add EditText, Button, TextView, ImageView.

• Use Toasts and Snackbar notifications.

• Implement simple event handling (click listeners).

• Create splash screen activity.

Intents & Navigation

• Navigate between activities using intents.

• Pass data between activities.

• Use implicit intents (browser, phone, email).

• Implement activity transitions.

• Handle back button behavior.

User Interaction

• Build a basic login and registration screen.

• Input validation and error handling.

• Add progress bar and spinner.

• Display alert dialog and confirm dialogs.

• Implement rating bar and seek bar.

🚀 Intermediate Level (40+ Exercises)

Goal: Enable app functionality through networking, storage, and modern Android architecture.

List Views & RecyclerView

• Create ListView with custom adapter.

• Implement RecyclerView with ViewHolder.

• Add item click listeners.

• Create horizontal and vertical scrollable lists.

• Enable swipe to delete and undo action.

Data Persistence

• Store and retrieve data using SharedPreferences.

• Build SQLite database CRUD operations.

• Use Room database with LiveData and ViewModel.

• Backup/restore local data.

• Build a local note-taking app.

Networking

• Fetch data from a REST API using Retrofit.

• Parse JSON responses.

• Load images using Glide/Picasso.

• Display data in RecyclerView from API.

• Handle loading/error states.

Multimedia & Sensors

• Play audio and video from internal & external sources.

• Use camera to capture and display photo.

• Access GPS location (Google Play Services).

• Read accelerometer and gyroscope data.

• Add vibration and flashlight controls.

🧠 Advanced Level (40+ Exercises)

Goal: Master modern Android app development with Jetpack, Firebase, security, and deployment.

Jetpack Libraries

• Implement ViewModel and LiveData.

• Use Navigation Component for screen flow.

• Work with Data Binding and ViewBinding.

• Create bottom navigation and tab layouts.

• Use WorkManager for background tasks.

Firebase Integration

• Firebase Authentication (Email/Google login).

• Realtime Database and Firestore usage.

• Firebase Storage for image upload.

• Cloud Messaging for push notifications.

• Firebase Analytics and Crashlytics.

Advanced App Features

• Implement dark mode and themes.

• Offline-first data sync strategies.

• In-app purchases and subscriptions (Google Billing).

• Biometric login (fingerprint/face).

• Support multi-language (i18n) apps.

Security & Performance

• Encrypt sensitive data (Jetpack Security).

• Secure API keys using NDK or Secrets Manager.

• Obfuscate code using ProGuard/R8.

• Profile and debug performance bottlenecks.

• Reduce APK size using modularization.

Capstone Projects

• Build a social media clone (login, feed, posts).

• Create a weather app using OpenWeatherMap API.

• Develop a quiz app with leaderboard.

• Design an e-commerce app with cart & payment mockup.

• Build a task manager with notifications and Firebase sync.

✅ Optional Tools & Technologies

• Java & Kotlin

• Android Jetpack, XML, Retrofit, Room, Glide

• Firebase, Google Maps API, Jetpack Compose