An Android smart parking monitoring application built with .NET MAUI for real-time parking order tracking and email notifications.
- User Login: Support for phone number + verification code login
- Area Selection: Support for multiple parking area selection
- Real-time Monitoring: Automatically query latest parking orders every 10 minutes
- Email Notifications: Automatic email alerts when new orders are detected
- Background Operation: Keep screen on to ensure uninterrupted monitoring
- Email Configuration: Dynamic SMTP email configuration support
- Framework: .NET MAUI (.NET 10)
- Architecture Pattern: MVVM (Model-View-ViewModel)
- MVVM Toolkit: CommunityToolkit.Mvvm
- Email Service: MailKit
- Data Storage: SecureStorage (secure storage for tokens and configurations)
FreeParkingMaui/
├── Constants.cs # Constants configuration (API URLs, area list, SMTP config)
├── MauiProgram.cs # Application startup configuration, dependency injection
├── Models/
│ └── Models.cs # Data models (LoginResponse, OrderResponse, etc.)
├── Services/
│ ├── ApiService.cs # HTTP API service
│ └── EmailService.cs # Email sending service
├── ViewModels/
│ ├── LoginViewModel.cs # Login page view model
│ └── MainViewModel.cs # Main page view model
├── Views/
│ ├── LoginPage.xaml # Login page
│ ├── LoginPage.xaml.cs
│ ├── MainPage.xaml # Monitoring main page
│ └── MainPage.xaml.cs
├── Converters/
│ ├── BoolConverters.cs # Boolean value converters
│ └── InvertedBoolConverter.cs
└── Platforms/ # Platform-specific code
User login interface with the following features:
- Area selector (Picker)
- Phone number input field
- Verification code input field
- Get verification code button (60-second countdown)
- Login button
Main monitoring interface with the following features:
- Status Indicator: Displays monitoring running status
- User Info Card: Shows current user phone number and area
- Timer Card: Displays last check time, next check time, and countdown
- Order Card: Shows latest parking order info (license plate, parking lot, start time, status)
- Action Buttons: Check now, logout, start/stop monitoring
- Email Settings: Click the settings button in the top right to configure SMTP email
| Login Page | Main Page |
|---|---|
 |
 |
- Click the ⚙ settings button in the top right corner of the main page
- Enter your QQ email address
- Enter the SMTP authorization code (not your email password)
- How to get: QQ Mail Settings → Account → Enable SMTP Service → Generate authorization code
| Area ID | Area Name |
|---|---|
| c7bd547b-fb67-4554-a1e5-0842f69f4e56 | (Huaning County) |
- .NET 10 SDK
- Visual Studio 2022 or VS Code
- Android SDK (for running Android version)
# Restore dependencies
dotnet restore
# Run Android version
dotnet build -t:Run -f net10.0-android
# Or launch debugging directly in Visual Studio| Package | Version | Purpose |
|---|---|---|
| CommunityToolkit.Mvvm | 8.4.0 | MVVM toolkit |
| MailKit | 4.15.0 | Email sending |
| Microsoft.Maui.Controls | $(MauiVersion) | MAUI framework |
- Token Expiration Handling: When the API returns 401, the app will automatically stop monitoring and prompt to log in again
- Email Sending: New order detection logic is
State != 3, and emails are only sent when the order state changes from 3 to another state - Screen Always On:
DeviceDisplay.KeepScreenOnis enabled when monitoring starts and automatically turned off when stopped - Secure Storage: Sensitive information such as user tokens and email configurations are encrypted using
SecureStorage
MIT License