Xamarin.Forms - Geolocation App

Logesh Palani

Xamarin.FormsGeolocatorGeolocator AppLocation API

9 Comments

Join the conversation! Your thoughts help the community grow.

Ajithkumar J7y ago
Copied from https://www.youtube.com/watch?v=cx5O9GfOnS4 :)
KarthikRaja A7y ago
GetPositionAsync() returs null
- Logesh Palani7y ago
  Turn on your Location manually or may be Device Issue
Uttam Padukone8y ago
Do you have a way to set up a listener so that geolocation parameters are automatically detected every x seconds - where x can be a value in a parameter?
Abhay Bhalerao8y ago
A geolocation error occurred unauthorized xamarin
Muhammad Nadeem8y ago
App exits after clicking Button
ashok yadav8y ago
It is not working for me.
- Logesh Palani8y ago
  Check you NugetPackage Version, in this nuget based to change some code Check it to ping me
Maksym Soloviov8y ago
Great tutorial. Thank you!

Introduction

In this article demonstrates how to access GPS hardware in your device in xamarin.forms application and that we can access our location of latitude and longitude.In this function not available in xamarin.forms.So,we need to install plugin for this.

Nuget package

Xamarin.Forms = search "Xam.Plugin.Geolocator"

Xam.Plugin.Geolocator

Simple cross platform plugin to get GPS location including heading, speed and more.Additionally, you can track geolocation changes, reverse geocode and more

More details

Step 1

You can create xamarin.forms app by going to File >> New >> Visual C# >> Cross Platform >> Cross Platform App (Xamarin.Native or Xamarin.Forms), give the application name and click ok.

(Project name : LocationApp)

Step 2

Afterwards, add the following nuget packages for your projects.

Xam.Plugin.Geolocator

For that, open Solution Explorer and select your solution, right click and select "Manage Nuget Packages for the Solution".In the popup window, open "Browse" tab and browse "Xam.Plugin.Geolocator" and select the following nuget packages and select your projects then install it.

Step 3

After installed nuget packges, add button with clicked event and labels to MainPage.Xaml page.For that go to Solution Explorer >> LocationApp(PCL) >>MainPage.xaml and double click to open its design view.Here is the code for this page.

Used toobox items

Button - get GPS location with clicked event
Label - longitude text label
Label - longitude label
Label - latitude text label
Label - latitude label

Xaml code

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:LocationApp"
x:Class="LocationApp.MainPage">

<StackLayout Orientation="Vertical">
<Button Text="Get GPS location"
Clicked="OnButtonClicked"
TextColor="Chocolate"
FontSize="30"/>
<Label Text="Longitude"
FontSize="60"
TextColor="BlueViolet"/>
<Label x:Name="LogitudeLabel"
FontSize="20"/>
<Label Text="Latitude"
FontSize="60"
TextColor="DarkRed"/>
<Label x:Name="LatitudeLabel"
FontSize="20"/>
</StackLayout>
</ContentPage>

Step 4

In this step, add namespace and cs code to MainPage.xaml.cs page.For that, open Solution Explorer >>LocationApp(PCL) >> MainPage.xaml.cs and click open MainPage.xaml.cs page .Here is the code.

namespace

using Plugin.Geolocator;

cs code

using Plugin.Geolocator;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
namespace LocationApp
{
public partial class MainPage : ContentPage
{
public MainPage()
{
InitializeComponent();
}
private async void OnButtonClicked(object sender, EventArgs e)
{
var locator = CrossGeolocator.Current;
locator.DesiredAccuracy = 50;
var position = await locator.GetPositionAsync(timeoutMilliseconds:10000);
LogitudeLabel.Text = position.Longitude.ToString();
LatitudeLabel.Text = position.Latitude.ToString();
}
}
}

Step 5

Now, we need to add location permission to our projects

Android project

The ACCESS_COARSE_LOCATION & ACCESS_FINE_LOCATION permission are required. if users are running Marshmallow the Plugin will automatically prompt them for runtime permissions.By adding this permissions Google Play will automatically fillter our devices without specific hardward.

Manually add this permission.For that, go to Solution Explorer >>LocationApp.Android >> right click our Android Soution >> select properties or enter ALT+ENTER button >> click open Android Manifest tab and click the following check boxs and save it.

ACCESS_COARSE_LOCATION
ACCESS_FINE_LOCATION

Universal Windows Platform project

You must set the Location permission.For that, open Solution Explorer >> open LocationApp.UWP >> double click open Package.appxmanifest >> go to "Capabilities" tab >> Followed by click Location checkbox and save it.

Step 6

Click 'F5' or 'Build' to run your projects. Running this projects, you will have the result like below.

Now press "GET GPS LOCATION'" button to get latitude and longitude.The final result like below,

Finally, we have successfullly created xamarin.forms location application.