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ParkedHereLite

A parking location tracker with visual navigation for Huawei LiteOS wearable devices.

Preview

Use Cases

• Parking Tracking: Never forget where you parked.
• Urban Parking Monitor time for parking meters or time-limited zones.
• Events & Venues: Find your way back in crowded events.
• Outdoor Activities: Track distance and time from starting point.

Technology

Stack

• Platform: Huawei LiteOS (Lite Wearable)
• Language: Javascript
• Framework: Huawei Lite Wearable JS Framework
• SDK Version: 5.0.0(12) - 5.1.0(18)
• Canvas API: CanvasRenderingContext2D (with LiteOS limitations)
• APIs Used:
  • @system.geolocation - GPS location tracking
  • @system.storage - Local data persistence
  • @system.vibrator - Haptic feedback for proximity alerts

Features

• Visual Navigation Compass: Rotating arrow on canvas that points toward your parked location
• Elapsed Timer: Track time since parking (hh:mm:ss format)
• Real-Time Distance: See distance to parked location in meters/kilometers
• Proximity Alert: Haptic feedback when very close
• Session Persistence: Resume tracking after app restart with stored location

Directory Structure

ParkedHereLite/
│
├── entry/
│   └── src/
│       └── main/
│           ├── js/
│           │   └── MainAbility/
│           │       ├── app.js                    # Application Lifecycle
│           │       ├── common/
│           │       │   └── calculate_distance.js # Distance calculation (Haversine formula)
│           │       │   └── calculate_bearing.js  # Bearing calculation (0 to 360)
│           │       │   └── format_time.js        # Time formatter(hh:mm:ss)
│           │       └── pages/
│           │           ├── index/                # Main Parking Tracker Page
│           │           │   ├── index.css
│           │           │   ├── index.hml
│           │           │   └── index.js
│           ├── resources/
│           │   └── base/
│           │       ├── element/
│           │       │   └── string.json           # Resource Strings
│           │       └── media/
│           └── config.json                       # Entry config file

Constraints and Restrictions

Supported Devices;

• Huawei Sport (Lite) Watch GT 4/5/6
• Huawei Sport (Lite) GT4/5 Pro
• Huawei Sport (Lite) Fit 3/4
• Huawei Sport (Lite) D2
• Huawei Sport (Lite) Ultimate

License

ParkedHereLite is distributed under the terms of the MIT license. See the LICENSE for more information.