Google Android Place API Examples

Place and map dependencies

implementation 'com.google.android.gms:play-services-maps:11.6.0'
implementation 'com.google.android.gms:play-services-places:11.6.0'

Field variables

val PLACE_AUTOCOMPLETE_REQUEST_CODE = 1001
val PLACE_PICKER_REQUEST = 1002
val REQUEST_PERMISSIONS = 100

protected lateinit var mGeoDataClient: GeoDataClient
private var mGoogleApiClient: GoogleApiClient? = null
private var mPlaceDetectionClient: PlaceDetectionClient? = null

Initialize Google api in the onCreate function
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    // Construct a GeoDataClient.
    mGeoDataClient = Places.getGeoDataClient(this, null)

    mGoogleApiClient = GoogleApiClient.Builder(this)
            .addApi(Places.GEO_DATA_API)
            .addApi(Places.PLACE_DETECTION_API)
            .enableAutoManage(this, this)
            .build()

    // Construct a PlaceDetectionClient.
    mPlaceDetectionClient = Places.getPlaceDetectionClient(this, null)
    initAutoComplete()
}

PlacePicker example
private fun launchPlacePicker() {
    try {
        val builder = PlacePicker.IntentBuilder()
        startActivityForResult(builder.build(this), PLACE_PICKER_REQUEST)
    } catch (e : GooglePlayServicesNotAvailableException) {
        e.printStackTrace()
    } catch (e : Exception) {
        e.printStackTrace()
    }
}

CurrentPlace example
private fun currentPlaces() {
    if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        var placeResult = mPlaceDetectionClient!!.getCurrentPlace(null)
        placeResult.addOnCompleteListener({ task ->
            var likelyPlaces = task.getResult()
            for (placeLikelihood in likelyPlaces) {
                Log.i(TAG, String.format("Place '%s' has likelihood: %g",
                        placeLikelihood.getPlace().getName(),
                        placeLikelihood.getLikelihood()))
            }
            likelyPlaces.release()

        })
    } else {
        var PERMISSIONS_REQUIRED = arrayOf(
            Manifest.permission.READ_PHONE_STATE,
            Manifest.permission.ACCESS_FINE_LOCATION)
            ActivityCompat.requestPermissions(this, PERMISSIONS_REQUIRED, REQUEST_PERMISSIONS)
    }
}

Place auto complete example
private fun autoComplete() {
    try {
        val intent = PlaceAutocomplete.IntentBuilder(PlaceAutocomplete.MODE_FULLSCREEN)
                .build(this)
        startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE)
    } catch (e: GooglePlayServicesRepairableException) {
        // TODO: Handle the error.
    } catch (e: GooglePlayServicesNotAvailableException) {
        // TODO: Handle the error.
    }

}

Handle permissions
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array, grantResults: IntArray) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults)
    Log.d("MainActivity", "requestCode: " + requestCode)
    Log.d("MainActivity", "Permissions:" + Arrays.toString(permissions))
    Log.d("MainActivity", "grantResults: " + Arrays.toString(grantResults))
    //do something to handle the results
}

Handle activity results
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    if (requestCode == PLACE_AUTOCOMPLETE_REQUEST_CODE) {
        if (resultCode == Activity.RESULT_OK) {
            val place = PlaceAutocomplete.getPlace(this, data)
            Log.i(TAG, "Place: " + place.getName())
        } else if (resultCode == PlaceAutocomplete.RESULT_ERROR) {
            val status = PlaceAutocomplete.getStatus(this, data)
            // TODO: Handle the error.
            Log.i(TAG, status.getStatusMessage())

        } else if (resultCode == Activity.RESULT_CANCELED) {
            // The user canceled the operation.
        }
    } else if (requestCode == PLACE_PICKER_REQUEST) {
        if (resultCode == RESULT_OK) {
            val place = PlacePicker.getPlace(data, this)
            val toastMsg = String.format("Place: %s", place.getName())
            Toast.makeText(this, toastMsg, Toast.LENGTH_LONG).show()
        }
    }
}