dotnet/maui

Add support for MslAltitudeMeters in Essentials Geolocation on Android

Open

#27,554 opened on Feb 4, 2025

View on GitHub
 (1 comment) (0 reactions) (0 assignees)C# (23,245 stars) (1,951 forks)batch import
area-essentialsgood first issueproposal/opent/enhancement ☀️

Description

Description

In API Level 34 Google introduced https://developer.android.com/reference/android/location/Location#getMslAltitudeMeters(). If available it should be used as altitude source to get consistent results on all platforms.

Public API Changes

Should be either the new default for Android or an option in GeolocationRequest and GeolocationListeningRequest.

Intended Use-Case

This change would make getting GPS altitude consistent on all platforms without manually correcting it.

.NET MAUI Recommended implementation

Because this API isn't supported on Windows.

I would be curious if there's a way to expose the platform location type through the xplat type.

For example, on all of our DragAndDrop args we've added versions of "PlatformDragEventArgs" which expose the underlying platform events.

This way we don't have to go one by one for every API that's on some xplat implementations but not others

Contributor guide

Tech stack
csharpandroid
Domain
mobile
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Familiarity with .NET MAUI EssentialsBasic understanding of Android location APIs
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Investigate the current implementation of geolocation in dotnet/maui's Essentials library, specifically the Android platform code. Look at the `Location` class in Android and how altitude is currently handled. Consider the suggestion in the issue to expose platform specific location types, similar to `PlatformDragEventArgs`. Also review the Android documentation for `getMslAltitudeMeters()` to understand its requirements and availability.