Daehan Lim

EN KR

☰

ACME - Field service management app

📝 Overview

📌 App Introduction: Android field management app integrating custom calendar functionality, offline capabilities, and navigation features
🕒 Duration: May 2021 ~ June 2021
📱 Platform: Native Android app
👥 Team Size: 1 developer
💼 Role: Full Android app development
🛠️ Key Technologies: Android Kotlin MVVM Jetpack Room Calendar Provider API Data Binding WebView
🔗 GitHub: daehan-lim/acme

🛠️ Tech Stack

📋 Project Structure

├── database/                         # Room database layer
│   ├── AcmeDatabase.kt               # Main database configuration
│   ├── dao/                          # Data access objects
│   │   ├── TicketDao.kt              # Ticket CRUD operations
│   │   └── UserDao.kt                # User authentication operations
│   └── model/                        # Database entities
│       ├── Ticket.kt                 # Service ticket data model
│       └── User.kt                   # User account data model
├── repository/                       # Repository pattern implementation
│   ├── TicketRepository.kt           # Ticket data abstraction layer
│   └── UserRepository.kt             # User data abstraction layer
├── ui/                               # MVVM architecture-based UI layer
│   ├── DbAccessViewModel.kt          # Common ViewModel base class
│   ├── login/                        # Authentication features
│   │   ├── LoginActivity.kt          # Login screen
│   │   ├── SignUpActivity.kt         # Registration screen
│   │   ├── LoginSignupViewModel.kt   # Authentication business logic
│   │   └── LoginSignUpFormState.kt   # Form validation state management
│   ├── dashboard/                    # Main dashboard
│   │   ├── MainActivity.kt           # Ticket list and main features
│   │   ├── MainViewModel.kt          # Dashboard data management
│   │   └── TicketsAdapter.kt         # RecyclerView adapter
│   ├── newticket/                    # Ticket creation feature
│   │   ├── NewTicketActivity.kt      # New ticket registration screen
│   │   ├── NewTicketViewModel.kt     # Ticket creation logic
│   │   └── ManageTicketFormState.kt  # Form validation and state management
│   ├── editticket/                   # Ticket modification feature
│   │   ├── EditTicketActivity.kt     # Ticket editing screen
│   │   └── EditTicketViewModel.kt    # Ticket modification logic
│   ├── workticket/                   # Ticket detail management
│   │   ├── WorkTicketActivity.kt     # Ticket details and work screen
│   │   └── OverviewFragment.kt       # Ticket overview fragment
│   ├── calendar/                     # Schedule management feature
│   │   ├── CalendarActivity.kt       # Calendar view screen
│   │   ├── CalendarViewModel.kt      # Schedule data management
│   │   ├── EventsAdapter.kt          # Event list adapter
│   │   └── Extensions.kt             # Calendar extension functions
│   └── directions/                   # Maps and navigation
│       └── GetDirectionsActivity.kt  # WebView-based Google Maps integration
├── model/                            # Business models
│   └── DueTicket.kt                  # Due ticket model
└── util/                             # Utilities and common features
    ├── BindingUtils.kt               # Data binding adapters
    ├── CalendarUtil.kt               # Device calendar integration
    └── Util.kt                       # Common utility functions

🌟 Implementation Details

• Implemented offline service ticket management app with responsive design
• Developed interactive calendar with custom event visualization and Android Calendar Provider API integration for syncing events to device calendar
• Built ticket location address search and navigation functionality through embedded Google Maps integration via WebViews
• Created user registration and authentication flows with input validation and error feedback

🚀 Results and Impact

• 20% reduction in ticket location search and navigation time
• Improved task scheduling efficiency through calendar integration