GPS Tracking and Area calculation APP

This Android application is designed to track the user's location using GPS and step count via a built-in step counter sensor. It visualizes the trajectory on a map, provides real-time step count updates, calculates the area and perimeter of the traveled path, and stores the user's tracking data for future reference.

Features

• Real-Time GPS Tracking:

  • Tracks the user’s location and displays it on the map in real-time.

• Step Counter:

  • Uses the device's built-in step counter sensor to track the number of steps taken.

• Map View Customization:

  • Supports both satellite and normal map views.
  • Ability to zoom to the user's current location on the map.

• Path Drawing:

  • Visualizes the traveled path on the map as the user moves.

• Area and Perimeter Calculation:

  • Calculates the area and perimeter of the tracked path (if the path forms a polygon).

• History Storage:

  • Saves the tracking data (area, perimeter, step count, etc.) to a local file (history.json) for later access.

• Permissions Handling:

  • Requests and handles the necessary location, sensor, and notification permissions from the user.

• Background Notifications:

  • Sends background notifications while the service is running, ensuring the user is always informed about the tracking status.

• User Interface:

  • A user-friendly interface with buttons to:
    • Start/Stop tracking
    • Switch between map layers (satellite/normal)
    • View statistics and replay the path

Required Permissions

• Location Permissions:

  • ACCESS_FINE_LOCATION
  • ACCESS_COARSE_LOCATION

• Sensor Permissions:

  • ACTIVITY_RECOGNITION

• Notification Permissions:

  • POST_NOTIFICATIONS

Setup & Requirements

1. Map API Key:

   • You need to provide an Amap API key (Gaode Map) for location services.
   • The app retrieves your location using Amap’s SDK.

2. Device Compatibility:

   • The app requires a device with a built-in step counter sensor (Sensor.TYPE_STEP_COUNTER). If the device doesn’t support this sensor, an error message will be displayed.

How to Use

1. Start Tracking:

   • Tap the "Start" button to begin tracking your location and counting steps.
   • The app will prompt for permissions if they haven't been granted yet.
   • GPS location tracking and step counting will start simultaneously.

2. Stop Tracking:

   • Tap the "Stop" button to end tracking, and calculate the area and perimeter of the path.
   • The results will be displayed on the screen.

3. Zoom to Current Location:

   • Tap the "Zoom" button to zoom in on the user's current location on the map.

4. Switch Map Layers:

   • Tap the "Layer" button to toggle between satellite and normal map views.

5. Change Theme:

   • Tap the "Theme" button to switch between day and night modes for map and UI aesthetics.

6. View Statistics:

   • Tap the "Stats" button to see detailed statistics of tracked paths such as total area, total perimeter, and total steps.

7. Replay Path:

   • Tap the "Replay" button to visualize the path that was recorded on the map.

Notifications

• The app requests notification permissions to show updates about the background tracking process.
• Background notifications keep users informed about the ongoing tracking even when the app is not in the foreground.

Saving & Viewing History

• The app saves each tracking session’s data, including area, perimeter, steps, and path coordinates, to a local file (history.json).
• Historical data can be accessed through the Statistics page or exported for further use.

Code Structure

• MainActivity: Handles UI interactions, permissions requests, sensor setup, and tracking logic.
• TrackingService: A background service that handles continuous location tracking and step counting.
• StatsActivity: Displays statistics for previous tracking sessions, including area, perimeter, and steps.

Development Setup

1. Clone or download the project.
2. Add your Amap API key in MainActivity.java or configure it through the app's settings.
3. Build the app in Android Studio and run it on a compatible Android device.

Troubleshooting

• Location Services: If the location services are not enabled, the app will prompt the user to enable them from Settings.
• Step Counter Sensor: If the device does not support the step counter sensor, a warning will be shown, and the step counter feature will not be available.

Known Issues

• Battery Optimizations: Some devices may restrict the app’s background activity due to aggressive battery optimization settings. You may need to manually disable battery optimizations for the app to function smoothly.

License

This project is open-source and available for modification under the MIT License.

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Feel free to report any issues or contribute to the project via the repository. We appreciate any feedback or contributions!

Happy tracking! 🚶‍♂️📍