Course Schedule

An Android application for managing and tracking university course schedules, with daily reminders and dark mode support.

Features

• Home Dashboard — Displays the nearest upcoming course with a countdown timer. Automatically falls back to the next available day if no course is scheduled today.
• Course List — Paginated list of all courses with swipe-to-delete and sort by time, course name, or lecturer.
• Add Course — Form to add a new course with day selection, time pickers, lecturer, and notes.
• Course Detail — View full course details and delete with confirmation.
• Daily Reminder — AlarmManager-based notification at 6:00 AM showing today's course schedule in an inbox-style notification.
• Dark Mode — Toggle between light, dark, and system-default themes from Settings.
• Boot Persistence — Alarm is automatically re-registered after device reboot if notifications are enabled.

Tech Stack

Layer	Technology
Language	Kotlin
Architecture	MVVM + Repository
Database	Room (SQLite)
Async/Threading	SingleThreadExecutor + LiveData
UI	Material Design 3, ConstraintLayout, RecyclerView + Paging 2
Notifications	AlarmManager + NotificationCompat
Preferences	AndroidX PreferenceFragmentCompat
Build	Gradle 7.3.3, KAPT

Requirements

• Android 5.0 (API 21) or higher
• Target SDK: Android 12 (API 32)

Getting Started

1. Clone the repository:

   git clone <repository-url>

2. Open the project in Android Studio (Arctic Fox or newer recommended).
3. Let Gradle sync and download dependencies.
4. Run on a device or emulator running Android 5.0+.

Project Structure

app/src/main/java/com/dicoding/courseschedule/
├── data/
│   ├── Course.kt              # Room entity
│   ├── CourseDao.kt           # Database access object
│   ├── CourseDatabase.kt      # Room database singleton
│   └── DataRepository.kt     # Single source of truth
├── notification/
│   ├── DailyReminder.kt       # BroadcastReceiver + AlarmManager scheduling
│   └── BootReceiver.kt        # Re-registers alarm after device reboot
├── paging/
│   ├── CourseAdapter.kt       # PagedListAdapter
│   └── CourseViewHolder.kt    # RecyclerView item holder
├── ui/
│   ├── home/                  # Home screen (nearest schedule)
│   ├── list/                  # All courses list
│   ├── add/                   # Add course form
│   ├── detail/                # Course detail & delete
│   └── setting/               # Settings (theme + notifications)
└── util/
    ├── Constant.kt            # Notification constants, thread executor
    ├── DayName.kt             # Day enum mapping
    ├── Event.kt               # Single-event LiveData wrapper
    ├── NightMode.kt           # Dark mode enum
    ├── QueryUtil.kt           # SQL query builder for sorting/nearest schedule
    ├── SortType.kt            # Sort options enum
    ├── TimePickerFragment.kt  # Time picker dialog
    └── TimeUtil.kt            # Relative time formatting

Database Schema

Table: course

Column	Type	Description
id	INTEGER (PK)	Auto-generated primary key
courseName	TEXT	Name of the course
day	INTEGER	Day of week (1=Sunday … 7=Saturday, matching Calendar.DAY_OF_WEEK)
startTime	TEXT	Start time in HH:MM format
endTime	TEXT	End time in HH:MM format
lecturer	TEXT	Lecturer name
note	TEXT	Additional notes

Notifications

• The daily reminder fires at 6:00 AM every day.
• It shows today's courses as an inbox-style notification.
• Enable/disable via Settings → Notification.
• The alarm is automatically restored after device reboot.
• On Android 13+ (POST_NOTIFICATIONS permission), the user must grant notification permission when prompted.

Settings

Setting	Options	Default
Notification	On / Off	Off
Dark Mode	Automatic / Dark / Light	Automatic

Known Limitations

• Uses Paging Library 2 (PagedListAdapter); migration to Paging 3 is recommended for new development.
• The WorkManager dependency is declared but not used; it can be removed if no background sync is needed.
• No input length validation on course name, lecturer, or note fields.