MedicineShield is an Android medication management application that helps users track their daily medication schedule with support for various medication cycles.

• Daily Medication View: View and track medications scheduled for today with an intuitive interface
• Date Navigation: Browse medication schedules for past and future dates with a Today button for quick navigation
• Flexible Medication Cycles:
  • Daily: Take medication every day
  • Weekly: Take medication on specific days of the week (e.g., Monday, Wednesday, Friday)
  • Interval: Take medication every N days
  • As-Needed: Add medications to take as needed (PRN medications)
• Medication Management: Add, edit, and delete medications with customizable schedules
• Intake Tracking: Record when medications are taken with timestamp tracking, including cancel functionality
• Dosage Support: Track medication dosage with customizable amounts and units
• Daily Notes: Add notes for each day to record health observations or medication-related information
• Period Support: Set start and end dates for medication courses
• Temporal Data Management: Track historical changes to medication schedules and times
• Medication Notifications: Receive reminders at scheduled medication times
• Settings: Customize notification preferences, view app version and license information

• Language: Kotlin
• UI Framework: Jetpack Compose with Material 3
• Architecture: Clean Architecture with Repository pattern
• Database: Room (SQLite)
• Navigation: Jetpack Navigation Compose
• Min SDK: 24 (Android 7.0)
• Target SDK: 36 (Android 16)

app/src/main/java/net/shugo/medicineshield/
├── data/
│   ├── dao/              # Room DAOs for database access
│   ├── database/         # Database configuration and migrations
│   ├── model/            # Data models and entities
│   ├── preferences/      # SharedPreferences wrapper for settings
│   └── repository/       # Repository layer for data operations
├── notification/         # Notification scheduling and handling
├── ui/
│   └── screen/           # Compose UI screens
├── utils/                # Utility classes (date handling, etc.)
├── viewmodel/            # ViewModels for UI state management
└── MainActivity.kt       # Main entry point and navigation setup

• Android Studio Hedgehog or later
• JDK 17
• Android SDK with API level 34

# Clean and build
./gradlew clean build

# Install debug build on connected device/emulator
./gradlew installDebug

# Run unit tests
./gradlew test

# Run Android instrumentation tests
./gradlew connectedAndroidTest

# Run lint check
./gradlew lint

The app uses Room database (version 11) with the following entities:

• medications: Core medication information (id, name)

  • Minimal entity storing only basic medication identification

• medication_configs: Medication scheduling configuration with temporal validity

  • Stores cycleType (DAILY, WEEKLY, INTERVAL), cycleValue, date range
  • Temporal validity: validFrom/validTo timestamps enable tracking configuration changes over time
  • One-to-many relationship with Medication

• medication_times: Scheduled times for each medication with temporal validity

  • Each time has a stable sequenceNumber (1, 2, 3...) per medication
  • Temporal validity: validFrom/validTo timestamps track when each time is valid
  • Allows time changes without breaking intake history
  • One-to-many relationship with Medication

• medication_intakes: Records of actual medication intake events

  • Links to medication via medicationId and sequenceNumber (not time string)
  • Stores scheduledDate (YYYY-MM-DD), takenAt timestamp, and canceledAt timestamp
  • Supports three states: unchecked (not taken), taken (with timestamp), and canceled (with timestamp)
  • Unique index on (medicationId, scheduledDate, sequenceNumber)

• daily_notes: Daily notes for recording health observations

  • Stores notes for each date (YYYY-MM-DD format)
  • Includes creation and update timestamps

• Temporal Data Management: Both MedicationConfig and MedicationTime support temporal validity, allowing the app to show accurate historical data for past dates and current configuration for future dates

• Sequence Number System: Medications times use stable sequence numbers instead of time strings for identification, enabling medication time changes while preserving intake history

• As-Needed Medications: Support for PRN (as-needed) medications that can be added multiple times per day without a fixed schedule

• Dosage Tracking: Track medication dosage with customizable amounts and units (e.g., 1 tablet, 5 ml, 2.5 mg)

• Database Migrations: The database includes comprehensive migrations from v1 through v11, supporting evolving features including temporal data, sequence numbers, dosage tracking, and daily notes

This project is licensed under MIT-0 License - see the LICENSE.txt file for details.

Shugo Maeda