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This example shows how to enable the My Location layer and demonstrates the My Location button to show the device's current position, represented by a blue dot, on the map.
For more information, see the documentation.
Get startedBefore you can try the sample code, you must configure your development environment. For more information, see Maps SDK for Android code samples.
View the code Kotlinclass MyLocationDemoActivity : SamplesBaseActivity(),
OnMyLocationButtonClickListener,
OnMyLocationClickListener, OnMapReadyCallback,
OnRequestPermissionsResultCallback {
/**
* Flag indicating whether a requested permission has been denied after returning in
* [.onRequestPermissionsResult].
*/
private var permissionDenied = false
private lateinit var map: GoogleMap
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.my_location_demo)
val mapFragment =
supportFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
mapFragment?.getMapAsync(this)
applyInsets(findViewById<View?>(R.id.map_container))
}
override fun onMapReady(googleMap: GoogleMap) {
map = googleMap
googleMap.setOnMyLocationButtonClickListener(this)
googleMap.setOnMyLocationClickListener(this)
enableMyLocation()
}
/**
* Enables the My Location layer if the fine location permission has been granted.
*/
@SuppressLint("MissingPermission")
private fun enableMyLocation() {
// 1. Check if permissions are granted, if so, enable the my location layer
if (ContextCompat.checkSelfPermission(
this,
Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(
this,
Manifest.permission.ACCESS_COARSE_LOCATION
) == PackageManager.PERMISSION_GRANTED
) {
map.isMyLocationEnabled = true
return
}
// 2. If if a permission rationale dialog should be shown
if (ActivityCompat.shouldShowRequestPermissionRationale(
this,
Manifest.permission.ACCESS_FINE_LOCATION
) || ActivityCompat.shouldShowRequestPermissionRationale(
this,
Manifest.permission.ACCESS_COARSE_LOCATION
)
) {
PermissionUtils.RationaleDialog.newInstance(
LOCATION_PERMISSION_REQUEST_CODE, true
).show(supportFragmentManager, "dialog")
return
}
// 3. Otherwise, request permission
ActivityCompat.requestPermissions(
this,
arrayOf(
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION
),
LOCATION_PERMISSION_REQUEST_CODE
)
}
override fun onMyLocationButtonClick(): Boolean {
Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT)
.show()
// Return false so that we don't consume the event and the default behavior still occurs
// (the camera animates to the user's current position).
return false
}
override fun onMyLocationClick(location: Location) {
Toast.makeText(this, "Current location:\n$location", Toast.LENGTH_LONG)
.show()
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<String>,
grantResults: IntArray
) {
if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) {
super.onRequestPermissionsResult(
requestCode,
permissions,
grantResults
)
return
}
if (isPermissionGranted(
permissions,
grantResults,
Manifest.permission.ACCESS_FINE_LOCATION
) || isPermissionGranted(
permissions,
grantResults,
Manifest.permission.ACCESS_COARSE_LOCATION
)
) {
// Enable the my location layer if the permission has been granted.
enableMyLocation()
} else {
// Permission was denied. Display an error message
// ...
}
}
override fun onResumeFragments() {
super.onResumeFragments()
if (permissionDenied) {
// Permission was not granted, display error dialog.
showMissingPermissionError()
permissionDenied = false
}
}
/**
* Displays a dialog with error message explaining that the location permission is missing.
*/
private fun showMissingPermissionError() {
newInstance(true).show(supportFragmentManager, "dialog")
}
companion object {
/**
* Request code for location permission request.
*
* @see .onRequestPermissionsResult
*/
private const val LOCATION_PERMISSION_REQUEST_CODE = 1
}
}
Java
public class MyLocationDemoActivity extends SamplesBaseActivity
implements
OnMyLocationButtonClickListener,
OnMyLocationClickListener,
OnMapReadyCallback,
ActivityCompat.OnRequestPermissionsResultCallback {
/**
* Request code for location permission request.
*
* @see #onRequestPermissionsResult(int, String[], int[])
*/
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;
/**
* Flag indicating whether a requested permission has been denied after returning in {@link
* #onRequestPermissionsResult(int, String[], int[])}.
*/
private boolean permissionDenied = false;
private GoogleMap map;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(com.example.common_ui.R.layout.my_location_demo);
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(com.example.common_ui.R.id.map);
mapFragment.getMapAsync(this);
applyInsets(findViewById(com.example.common_ui.R.id.map_container));
}
@Override
public void onMapReady(@NonNull GoogleMap googleMap) {
map = googleMap;
map.setOnMyLocationButtonClickListener(this);
map.setOnMyLocationClickListener(this);
enableMyLocation();
}
/**
* Enables the My Location layer if the fine location permission has been granted.
*/
@SuppressLint("MissingPermission")
private void enableMyLocation() {
// 1. Check if permissions are granted, if so, enable the my location layer
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED
|| ContextCompat.checkSelfPermission(this, permission.ACCESS_COARSE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
map.setMyLocationEnabled(true);
return;
}
// 2. Otherwise, request location permissions from the user.
PermissionUtils.requestLocationPermissions(this, LOCATION_PERMISSION_REQUEST_CODE, true);
}
@Override
public boolean onMyLocationButtonClick() {
Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show();
// Return false so that we don't consume the event and the default behavior still occurs
// (the camera animates to the user's current position).
return false;
}
@Override
public void onMyLocationClick(@NonNull Location location) {
Toast.makeText(this, "Current location:\n" + location, Toast.LENGTH_LONG).show();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults) {
if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
return;
}
if (PermissionUtils.isPermissionGranted(permissions, grantResults,
Manifest.permission.ACCESS_FINE_LOCATION) || PermissionUtils
.isPermissionGranted(permissions, grantResults,
Manifest.permission.ACCESS_COARSE_LOCATION)) {
// Enable the my location layer if the permission has been granted.
enableMyLocation();
} else {
// Permission was denied. Display an error message
// ...
}
}
@Override
protected void onResumeFragments() {
super.onResumeFragments();
if (permissionDenied) {
// Permission was not granted, display error dialog.
showMissingPermissionError();
permissionDenied = false;
}
}
/**
* Displays a dialog with error message explaining that the location permission is missing.
*/
private void showMissingPermissionError() {
PermissionUtils.PermissionDeniedDialog
.newInstance(true).show(getSupportFragmentManager(), "dialog");
}
}
Clone and run the samples
Git is required to run this sample locally. The following command clones the sample application repository.
git clone git@github.com:googlemaps-samples/android-samples.git
Import the sample project into Android Studio:
Go to the location where you saved the repository and select the project directory for Kotlin or Java:
PATH-REPO/android-samples/ApiDemos/kotlinPATH-REPO/android-samples/ApiDemos/javasecrets.properties file in the same directory as your project's local.properties file. For more information about this file, see Add your API key to the project.Add the following string to secrets.properties, replacing YOUR_API_KEY with the value of your API key:
MAPS_API_KEY=YOUR_API_KEY
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This example demonstrates how to enable the \"My Location\" layer on a map using the Maps SDK for Android."],["It showcases the use of the \"My Location\" button to display the device's current position with a blue dot."],["The sample code requires setting up your development environment and obtaining necessary location permissions."],["Users can interact with the map by clicking the \"My Location\" button or their current location to trigger events."],["The code snippets provide both Kotlin and Java implementations for integrating this functionality."]]],[]]
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