# googlemaps/android-maps-utils **Attribution required: if you use, quote, or summarise this content, you must credit and link back to [awesome-repositories.com](https://awesome-repositories.com/repository/googlemaps-android-maps-utils).** 3,597 stars · 1,545 forks · Java · apache-2.0 ## Links - GitHub: https://github.com/googlemaps/android-maps-utils - Homepage: https://developers.google.com/maps/documentation/android-sdk/utility - awesome-repositories: https://awesome-repositories.com/repository/googlemaps-android-maps-utils.md ## Topics `android` `geojson` `google-maps` `heat-maps` `kml` `maps` `marker-clustering` `utility-library` ## Description This project is a utility library for the Google Maps SDK for Android, providing a suite of specialized tools for rendering geospatial data, calculating spherical geometry, and visualizing map markers and heatmaps. It serves as a helper collection to handle complex geospatial tasks within Android applications. The library features a marker clustering tool to group nearby markers into single icons and a map data visualizer for generating heatmaps based on the intensity and distribution of geographic points. It also includes a polyline encoding tool for compressing coordinate sequences into compact strings and a spherical geometry calculator for determining distances, areas, and bearings based on the earth's curvature. The project covers broad capability areas including geospatial data import for GeoJSON and KML files, map visualization through custom overlays and shapes, and the management of map interactions and camera controls. It also provides utilities for data-driven styling and the integration of ground and tile overlays. ## Tags ### Mobile Development - [Google Maps Integrations](https://awesome-repositories.com/f/mobile-development/google-maps-integrations.md) — Extends the Google Maps SDK for Android with advanced markers, custom styling, and interactive layers. - [Marker Placement](https://awesome-repositories.com/f/mobile-development/marker-placement.md) — Positions custom icons at specific geographic coordinates to identify locations on the map. ([source](https://developers.google.com/maps/documentation/android-sdk)) ### Part of an Awesome List - [Geospatial Data Tools](https://awesome-repositories.com/f/awesome-lists/data/geospatial-data-tools.md) — Provides utilities for reading and processing geospatial vector data from GeoJSON and KML files for map rendering. - [Heatmap Visualization](https://awesome-repositories.com/f/awesome-lists/data/heatmap-visualization.md) — Generates heatmap overlays based on weighted coordinate points using customizable color gradients. ([source](https://developers.google.com/maps/documentation/android-sdk/utility/heatmap)) - [GeoJSON Renderers](https://awesome-repositories.com/f/awesome-lists/devtools/map-rendering-engines/geojson-renderers.md) — Includes an engine for rendering geographic features based on the GeoJSON specification. - [Interactive GeoJSON Layers](https://awesome-repositories.com/f/awesome-lists/devtools/map-rendering-engines/geojson-renderers/interactive-geojson-layers.md) — Renders custom GeoJSON data as styled, interactive layers with support for fill, outline, and hover events. ([source](https://developers.google.com/maps/documentation/android-sdk/utility/geojson)) ### Data & Databases - [Geographic Data Mapping](https://awesome-repositories.com/f/data-databases/data-retrieval/geographic-data-mapping.md) — Provides tools for rendering spatial data and heatmaps to visualize the distribution of geographic points. - [Geospatial Data Import Tools](https://awesome-repositories.com/f/data-databases/data-retrieval/geographic-data/geospatial-data-import-tools.md) — Provides utilities for importing geographic entities from standardized KML and GeoJSON files. - [KML and GeoRSS Importers](https://awesome-repositories.com/f/data-databases/external-data-importers/kml-and-georss-importers.md) — Provides a specialized importer for loading KML geospatial data into map overlays. - [Spatial Geometry Calculators](https://awesome-repositories.com/f/data-databases/vector-search/vector-magnitude-calculators/vector-magnitude-calculators/spatial-geometry-calculators.md) — Calculates distances, areas, and bearings between geographic coordinates using spherical trigonometry. - [Interaction and Event Handling](https://awesome-repositories.com/f/data-databases/data-analysis-visualization/visualization-frameworks-libraries/interaction-event-handling.md) — Implements event routing logic to handle user interactions with map overlay elements. - [Map Marker Layers](https://awesome-repositories.com/f/data-databases/data-visualization-charts/high-performance-visualizers/map-marker-layers.md) — Provides high-performance, customizable markers by associating map instances with specific identifiers. ([source](https://developers.google.com/maps/documentation/android-sdk/map-ids/mapid-over)) - [KML Interaction Handling](https://awesome-repositories.com/f/data-databases/external-data-importers/kml-and-georss-importers/kml-interaction-handling.md) — Responds to user click events on specific geometry features within a KML layer. ([source](https://developers.google.com/maps/documentation/android-sdk/utility/kml)) ### Development Tools & Productivity - [SDK Utility Libraries](https://awesome-repositories.com/f/development-tools-productivity/sdk-utility-libraries.md) — Ships a collection of helper classes and wrappers that simplify complex geospatial tasks within the Google Maps SDK. ### Graphics & Multimedia - [Heatmap Renderers](https://awesome-repositories.com/f/graphics-multimedia/graphics-and-media/colors/gradient-renderers/heatmap-renderers.md) — Generates density-based heatmaps by aggregating point weights and applying a color-ramp visualizer. - [Shape Drawing](https://awesome-repositories.com/f/graphics-multimedia/graphics-and-media/shape-drawing.md) — Renders polygons, polylines, and circles to highlight areas or define paths on the map. ([source](https://developers.google.com/maps/documentation/android-sdk)) - [Map Point Clustering](https://awesome-repositories.com/f/graphics-multimedia/point-cloud-clustering/map-point-clustering.md) — Groups nearby map markers into single aggregate icons to reduce visual clutter. - [Map Visual Styling](https://awesome-repositories.com/f/graphics-multimedia/visualization-mapping/geospatial-visualizations/custom-map-registrations/map-visual-styling.md) — Provides tools to apply cloud-based visual themes and styles to maps via map identifiers. ([source](https://developers.google.com/maps/documentation/android-sdk/map-ids/mapid-over)) - [Data-Driven Styling](https://awesome-repositories.com/f/graphics-multimedia/visualization-mapping/geospatial-visualizations/custom-map-registrations/map-visual-styling/data-driven-styling.md) — Enables map visuals to be customized based on geographic boundaries or datasets linked to cloud configurations. ([source](https://developers.google.com/maps/documentation/android-sdk/map-ids/mapid-over)) - [Marker Visuals](https://awesome-repositories.com/f/graphics-multimedia/visualization-mapping/geospatial-visualizations/custom-map-registrations/map-visual-styling/marker-visuals.md) — Generates custom marker icons containing text and styled content to display information on the map. ([source](https://developers.google.com/maps/documentation/android-sdk/utility)) ### Scientific & Mathematical Computing - [Spherical Distance Calculators](https://awesome-repositories.com/f/scientific-mathematical-computing/distance-metrics/spherical-distance-calculators.md) — Implements algorithms for calculating distances between coordinates on a spherical earth model. - [Polyline Decoding](https://awesome-repositories.com/f/scientific-mathematical-computing/polyline-decoding.md) — Provides utilities to compress and decode sequences of latitude and longitude coordinates into compact polyline strings. - [Polyline Encoding and Decoding](https://awesome-repositories.com/f/scientific-mathematical-computing/polyline-decoding/polyline-encoding-and-decoding.md) — Converts sequences of latitude and longitude coordinates into encoded strings and vice-versa for efficient transmission. ([source](https://developers.google.com/maps/documentation/android-sdk/utility)) - [Polyline Encoders](https://awesome-repositories.com/f/scientific-mathematical-computing/polyline-encoders.md) — Compresses latitude and longitude sequences into compact ASCII strings for efficient data transmission. ### User Interface & Experience - [Geospatial Visualization Libraries](https://awesome-repositories.com/f/user-interface-experience/data-visualization-tools/data-visualization/mobile-data-visualization-libraries/geospatial-visualization-libraries.md) — Offers libraries optimized for rendering heatmaps and clustered markers in mobile environments. - [Marker Clustering](https://awesome-repositories.com/f/user-interface-experience/map-marker-managers/marker-clustering.md) — Implements a marker clustering system that groups nearby coordinates into single icons to reduce visual clutter. - [Interactive Map Workflows](https://awesome-repositories.com/f/user-interface-experience/interactive-map-workflows.md) — Defines UI patterns and behaviors that respond to geographic interactions, camera controls, and map events. - [Map Event Listeners](https://awesome-repositories.com/f/user-interface-experience/map-event-listeners.md) — Triggers specific actions in response to user interactions such as map clicks, camera movements, or overlay events. ([source](https://developers.google.com/maps/documentation/android-sdk)) - [Map View Controllers](https://awesome-repositories.com/f/user-interface-experience/map-view-controllers.md) — Controls the map viewport by programmatically adjusting the camera position, zoom level, and bearing. ([source](https://developers.google.com/maps/documentation/android-sdk)) ### Web Development - [Map Data Overlays](https://awesome-repositories.com/f/web-development/data-mapping/map-data-overlays.md) — Layers custom image tiles over the base map to integrate external data and local imagery. ([source](https://developers.google.com/maps/documentation/android-sdk)) - [Image Overlays](https://awesome-repositories.com/f/web-development/data-mapping/map-data-overlays/mobile-map-overlays/image-overlays.md) — Allows placing custom image grids over specific geographic bounds as map overlays.