Geocoder - getFromLocation() deprecated

Question

I've received a message that this function (or it's constructor) has been deprecated. There's a new constructor of that function that accepts an additional parameter 'Geocoder.GeocodeListener listener' but that new constructor requires an API Level 33 and above. What should I do for the lower API levels, what's the solution?

Answer 1

Since this is deprecated in API level 33, I believe this is the only option for lower API levels.

Answer 2

I think the cleanest way to handle this deprecation is move getFromLocation into new extension function and add @Suppress("DEPRECATION") like this:

@Suppress("DEPRECATION")
fun Geocoder.getAddress(
    latitude: Double,
    longitude: Double,
    address: (android.location.Address?) -> Unit
) {

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
        getFromLocation(latitude, longitude, 1) { address(it.firstOrNull()) }
        return
    }

    try {
        address(getFromLocation(latitude, longitude, 1)?.firstOrNull())
    } catch(e: Exception) {
        //will catch if there is an internet problem
        address(null)
    }
}

And this is how to use:

    Geocoder(requireContext(), Locale("in"))
        .getAddress(latlng.latitude, latlng.longitude) { address: android.location.Address? ->
        if (address != null) {
            //do your logic
        }
    }

Answer 3

The Official Doc - Use getFromLocation(double, double, int, android.location.Geocoder.GeocodeListener) instead to avoid blocking a thread waiting for results.

Example:

//Variables
val local = Locale("en_us", "United States")
val geocoder = Geocoder(this, local)
val latitude = 18.185600
val longitude = 76.041702
val maxResult = 1


//Fetch address from location
geocoder.getFromLocation(latitude,longitude,maxResult,object : Geocoder.GeocodeListener{
 override fun onGeocode(addresses: MutableList<Address>) {

    // code                      
 }
 override fun onError(errorMessage: String?) {
     super.onError(errorMessage)

 }

})

Answer 4

Method getFromLocationName still exists, but now expects "bounding box" parameters lowerLeftLatitude , lowerLeftLongitude , upperRightLatitude , upperRightLongitude .
Setting the "bounding box" to the view boundary coordinates should work.

@SuppressWarnings({"deprecation", "RedundantSuppression"})
...

Geocoder geoCoder = new Geocoder(requireContext());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
    geoCoder.getFromLocationName(
            geocode, maxResults,
            lowerLeftLatitude, lowerLeftLongitude,
            upperRightLatitude,upperRightLongitude,
            addresses -> {
                Address bestMatch = (addresses.isEmpty() ? null : addresses.get(0));
                updatePosition(item, bestMatch);
            });
} else {
    try {
        List<Address> addresses = geoCoder.getFromLocationName(geocode, maxResults);
        Address bestMatch = (addresses.isEmpty() ? null : addresses.get(0));
        updatePosition(item, bestMatch);
    } catch (IOException e) {
        if (mDebug) {Log.e(LOG_TAG, e.getMessage());}
    }
}