Agent skill
maplibre-offline-map-manager
Manages offline-capable mapping with tile caching, location services, and MapLibre integration. Use when implementing map features, GPS tracking, offline map regions, or custom map styles in Purrsuit Mobile App.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/testing/maplibre-offline-map-manager-planeinabottle-purrsuit
SKILL.md
MapLibre Offline Map Manager
This skill handles MapLibre integration, offline tile management, and location services following the patterns established in the Purrsuit Mobile App.
When to Use This Skill
Use this skill when you need to:
- Implement interactive maps using MapLibre
- Handle GPS location tracking and permissions
- Manage offline map regions (download, delete, list)
- Switch between custom map styles (Liberty, Bright, Positron, Dark)
- Perform geocoding or reverse geocoding
- Fit map bounds to a collection of coordinates
Map Components
MapView with Camera
import { MapView, Camera, PointAnnotation } from "@maplibre/maplibre-react-native"
import { MAP_STYLES } from "@/services/offlineMapManager"
<MapView
ref={mapRef}
style={StyleSheet.absoluteFillObject}
mapStyle={MAP_STYLES[mapStyle].url}
>
<Camera
ref={cameraRef}
longitude={longitude}
latitude={latitude}
zoom={12}
/>
</MapView>
Point Annotations (Markers)
<PointAnnotation
id={encounter.id}
coordinate={[lng, lat]}
onSelected={() => handleMarkerPress(encounter.id)}
>
<View style={styles.marker}>
<Text>{emoji}</Text>
</View>
</PointAnnotation>
Offline Management
Downloading a Region
import { offlineMapManager } from "@/services/offlineMapManager"
await offlineMapManager.downloadRegion({
name: "Downtown SF",
bounds: [[-122.45, 37.8], [-122.4, 37.75]],
minZoom: 10,
maxZoom: 16
}, (status) => {
console.log(`Download progress: ${status.percentage}%`)
})
Location Services
Getting Current Location
import { getCurrentLocation, requestLocationPermissions } from "@/services/location"
const permission = await requestLocationPermissions()
if (permission.granted) {
const coords = await getCurrentLocation()
// { latitude, longitude, accuracy }
}
Reverse Geocoding
import { reverseGeocodeAsync, formatAddress } from "@/services/location"
const address = await reverseGeocodeAsync(lat, lng)
const displayString = formatAddress(address)
Advanced Patterns
Fitting Multiple Markers
const bounds = [minLng, minLat, maxLng, maxLat] // [W, S, E, N]
cameraRef.current?.fitBounds(bounds, {
padding: { top: 50, right: 50, bottom: 50, left: 50 },
duration: 1000,
})
Coordinate Conversion
import { toMapLibreCoords, fromMapLibreCoords } from "@/services/offlineMapManager"
const mapLibreCoord = toMapLibreCoords({ latitude, longitude }) // [lng, lat]
const nativeCoord = fromMapLibreCoords([lng, lat]) // { latitude, longitude }
References
See MAP_PATTERNS.md for detailed implementation examples.
See OFFLINE_STRATEGIES.md for tile caching and database management.
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