Xamarin.iOS.Google.Places - Unrecognised selector sent to instance

[ckomo]

Hi, I have upgraded to the latest packages for:

• Xamarin.iOS.Google.Maps
• Xamarin.iOS.Google.Places

And am receiving a native crash related to retrieving autocomplete results. The affected method is:

GoogleApisForiOSComponents/source/Google/Places/ApiDefinition.cs

Line 751 in 0b83095

void FindAutocompletePredictions (string query, [NullAllowed] CoordinateBounds bounds, AutocompleteBoundsMode boundsMode, [NullAllowed] AutocompleteFilter filter, [NullAllowed] AutocompleteSessionToken sessionToken, AutocompletePredictionsHandler callback);

Invoking this will result in:

Objective-C exception thrown. Name: NSInvalidArgumentException Reason: -[GMSPlacesClient findAutocompletePredictionsFromQuery:bounds:boundsMode:filter:sessionToken:callback:]: unrecognized selector sent to instance.

I believe this caused by changes in the Google Places library and the bindings have not been updated.

The method was deprecated in version 4.0: https://cloud.google.com/blog/products/maps-platform/announcing-version-40-maps-and-places-sdks-ios

The method was changed from:
findAutocompletePredictionsFromQuery:bounds:boundsMode:filter:sessionToken:callback
To:
findAutocompletePredictionsFromQuery:filter:sessionToken:callback

I have created a sample project that reproduces it: https://github.com/ckomo/xamarin_google_places_crash

Thanks for looking into this, hopefully I have included enough information.

-Chris

[dmariogatto]

Hey Chris,

Great explanation! You're right the definition for that ObjC function call has changed,

- (void)findAutocompletePredictionsFromQuery:(NSString *)query
                                      filter:(nullable GMSAutocompleteFilter *)filter
                                sessionToken:(nullable GMSAutocompleteSessionToken *)sessionToken
                                    callback:(GMSAutocompletePredictionsCallback)callback;

I think this should also include the removal of CoordinateBounds & AutocompleteBoundsMode in a couple other spots as well as these are no longer used in Places 6.0.0 (dmariogatto@29c9abe).

[ckomo]

Thanks for the quick reply, is there a time frame for this fix to be pushed out to Nuget package?

[dmariogatto]

Unfortunately no, I'm happy to make a PR, but I don't know what the plans are for this project. With all the binding changes in the latest version and the large gap between releases there are a few errors that have been introduced.

I'm happy to help out, but this really requires dedicated resources from Microsoft, with a proper testing method, maybe a pre-release channel & multiple eyes to look over binding changes.

[johnclarete]

Yeah this would be good to get fixed also or if anyone else has found an alternative

[wiljoetradify]

Hi team,
Is there any update on this?