iOS OnPartial returns a null string to the handler. On investigation, there is a bug with how the parsedResult.partial, which is an Optional String, is handled. The React Native Vosk Swift library sends, parsedResult.partial!.data instead of parsedResult.partial as the value for the callback event. data does not exist in the partial text, and a check for the partial string being non-null and different from the last partial string is made before, guaranteeing the partial variable to have a non-null value.
Issue: https://github.com/riderodd/react-native-vosk/issues/47
Problem Summary
iOS
OnPartialreturns a null string to the handler. On investigation, there is a bug with how theparsedResult.partial, which is an Optional String, is handled. The React Native Vosk Swift library sends,parsedResult.partial!.datainstead ofparsedResult.partialas the value for the callback event.datadoes not exist in the partial text, and a check for the partial string being non-null and different from the last partial string is made before, guaranteeing the partial variable to have a non-null value.