A timer-based flags quiz application built with Android Jetpack Compose, following Clean Architecture principles with MVVM pattern and Koin dependency injection.
Download Links:
- APK Download (Prefering to build an updated version from project)
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Customizable Timer Setup: Set challenge start time using hour, minute, and second inputs
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20-Second Countdown: Pre-game countdown before the challenge begins
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15 Flag Questions: Multiple choice questions with country flags
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30-Second Timer: Each question has a 30-second time limit
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Real-time Flag Loading: Flags loaded from external API with SVG support
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Answer Feedback: Immediate visual feedback showing correct/wrong answers
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Score Tracking: Track correct answers out of 15 questions
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Game Over Sequence: 10-second game over screen followed by 10-second score display
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Background State Management: Timer continues accurately when app is backgrounded
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Last Test Retrieval: Resume incomplete tests when returning to the app after backgrounding
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Game sessions stored locally with Room database
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Answer history and scoring persistence
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Timer state preservation in DataStore
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Last Test Retrieval: Automatic resume of incomplete tests when app is reopened after killing or background
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Background-safe data operations
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State synchronization between timer and question progress
- Clean Architecture: Domain, Data, and Presentation layers
- MVVM Pattern: ViewModels with StateFlow for reactive UI
- Koin Dependency Injection: Modular DI setup
- Room Database: Local storage for game sessions and answers
- DataStore Preferences: Timer and game state persistence
- Jetpack Compose UI: Modern declarative UI toolkit
- Navigation Component: Type-safe navigation between screens
- Coroutines & Flow: Asynchronous programming with reactive streams