Modifies event and flat list ref types.

Allows Typsecript to compile without errors

Author: alexkendall

src/WheelPicker.tsx

@@ -125,7 +125,7 @@ const WheelPicker: React.FC<Props> = ({
     }
   }, [scrollIndex, onChange]);
 
-  const handleScroll = (event: Animated.EventConfig<NativeScrollEvent>) => {
+  const handleScroll = (event: NativeSyntheticEvent<any>) => {
     if (Platform.OS === 'web') {
       const positionY = event.nativeEvent.contentOffset.y;
       const index = Math.round(positionY / itemHeight);
@@ -158,9 +158,8 @@ const WheelPicker: React.FC<Props> = ({
           [{ nativeEvent: { contentOffset: { y: scrollY } } }],
           {
             useNativeDriver: true,
-            listener: (event: {
-              nativeEvent: Animated.EventConfig<NativeScrollEvent>;
-            }) => handleScroll(event),
+            listener: (event: NativeSyntheticEvent<any>
+            ) => handleScroll(event),
           },
         )}
         onMomentumScrollEnd={handleMomentumScrollEnd}
@@ -193,4 +192,4 @@ const WheelPicker: React.FC<Props> = ({
   );
 };
 
-export default WheelPicker;
+export default WheelPicker;