CODEWITHSUNDEEP
androidandroid-locationkotlin-android
Ahmed Maad
Ahmed Maad

Reputation: 551

How to get location using "fusedLocationClient.getCurrentLocation" method in Kotlin?

To request the last known location of the user's device, we can use the fused location provider to retrieve the device's last known location using getLastLocation(), but using getCurrentLocation() gets a refresher, and more accurate location.

so, how to use the fusedLocationClient.getCurrentLocation() in Kotlin as there is no example illustrated in the documentation?

Upvotes: 10

Views: 17183

Answers (3)

Anatol Bivol
Anatol Bivol

Reputation: 983

I know the question is about Kotlin but I want to add for those searching for Java, based on this example in the documentation:

CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
fusedLocationClient.getCurrentLocation(Priority.PRIORITY_HIGH_ACCURACY, cancellationTokenSource.getToken())
.addOnSuccessListener(MyActivity.this, new OnSuccessListener<Location>() {
    @Override
    public void onSuccess(Location location) {
        // Got last known location. In some rare situations this can be null.
        if (location != null) {
            //do your thing
        }
        Log.w(TAG, "No current location could be found");
    }
});

Upvotes: 4

Shivanand Darur
Shivanand Darur

Reputation: 3224

fusedLocationClient.getCurrentLocation(Priority.PRIORITY_HIGH_ACCURACY, object : CancellationToken() {
    override fun onCanceledRequested(listener: OnTokenCanceledListener) = CancellationTokenSource().token

    override fun isCancellationRequested() = false
})
.addOnSuccessListener {
    if (it == null)
        Toast.makeText(this, "Cannot get location.", Toast.LENGTH_SHORT).show()
    else {
        val lat = it.latitude
        val lon = it.longitude
    }

}

Upvotes: -1

Ahmed Maad
Ahmed Maad

Reputation: 551

According to the documentation, the getCurrentLocation() takes two parameters.

The 1st parameter it takes is the priority (e.g. PRIORITY_HIGH_ACCURACY) to request the most accurate locations available, or any other priority that can be found here.

The 2nd parameter it takes is a cancellation token that can be used to cancel the current location request.

From the Google play services reference, a CancellationToken can only be created by creating a new instance of CancellationTokenSource.

so here is the code you need to use when using getCurrentLocation()

class YourActivity : AppCompatActivity() {

    private lateinit var fusedLocationClient: FusedLocationProviderClient

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.your_layout)

        fusedLocationClient = LocationServices.getFusedLocationProviderClient(this)

        fusedLocationClient.getCurrentLocation(LocationRequest.PRIORITY_HIGH_ACCURACY, object : CancellationToken() {
                override fun onCanceledRequested(p0: OnTokenCanceledListener) = CancellationTokenSource().token

                override fun isCancellationRequested() = false
            })
            .addOnSuccessListener { location: Location? ->
                if (location == null)
                    Toast.makeText(this, "Cannot get location.", Toast.LENGTH_SHORT).show()
                else {
                    val lat = location.latitude
                    val lon = location.longitude
                }

            }

    }
}

Upvotes: 13

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