added custom_filter_functionality_to_dataSource

GooglePlacesAutocomplete.d.ts

@@ -378,6 +378,8 @@ interface GooglePlacesAutocompleteProps {
   enablePoweredByContainer?: boolean;
   fetchDetails?: boolean;
   /** filter the reverse geocoding results by types - ['locality', 'administrative_area_level_3'] if you want to display only cities */
+  filter?: (data: any[]) => any[];
+  /** add custom filter method for dataSource */
   filterReverseGeocodingByTypes?: PlaceType[];
   /** available options for GooglePlacesDetails API: https://developers.google.com/places/web-service/details */
   GooglePlacesDetailsQuery?: Partial<Query> & { fields?: string };

GooglePlacesAutocomplete.js

@@ -764,7 +764,7 @@ export const GooglePlacesAutocomplete = forwardRef((props, ref) => {
             props.suppressDefaultStyles ? {} : defaultStyles.listView,
             props.styles.listView,
           ]}
-          data={dataSource}
+          data={props.filter ? props.filter(dataSource): dataSource}
           keyExtractor={keyGenerator}
           extraData={[dataSource, props]}
           ItemSeparatorComponent={_renderSeparator}