Document that the isGesture property is supported by Google Maps on…

…ly (#3589)

docs/mapview.md

@@ -57,8 +57,8 @@ To access event data, you will need to use `e.nativeEvent`. For example, `onPres
 |---|---|---|
 | `onMapReady` |  | Callback that is called once the map is fully loaded.
 | `onKmlReady` | `KmlContainer` | Callback that is called once the kml is fully loaded.
-| `onRegionChange` | (`Region`, `{isGesture: boolean}`) | Callback that is called continuously when the region changes, such as when a user is dragging the map. The second parameter is an object containing more details about the move. `isGesture` property indicates if the move was from the user (true) or an animation (false).
-| `onRegionChangeComplete` | (`Region`, `{isGesture: boolean}`) | Callback that is called once when the region changes, such as when the user is done moving the map.  The second parameter is an object containing more details about the move. `isGesture` property indicates if the move was from the user (true) or an animation (false).
+| `onRegionChange` | (`Region`, `{isGesture: boolean}`) | Callback that is called continuously when the region changes, such as when a user is dragging the map. The second parameter is an object containing more details about the move. `isGesture` property indicates if the move was from the user (true) or an animation (false). **Note**: `isGesture` is supported by Google Maps only.
+| `onRegionChangeComplete` | (`Region`, `{isGesture: boolean}`) | Callback that is called once when the region changes, such as when the user is done moving the map.  The second parameter is an object containing more details about the move. `isGesture` property indicates if the move was from the user (true) or an animation (false). **Note**: `isGesture` is supported by Google Maps only.
 | `onUserLocationChange` | `{ coordinate: Location }` | Callback that is called when the underlying map figures our users current location (coordinate also includes isFromMockProvider value for Android API 18 and above). Make sure **showsUserLocation** is set to *true*.
 | `onPress` | `{ coordinate: LatLng, position: Point }` | Callback that is called when user taps on the map.
 | `onDoublePress` | `{ coordinate: LatLng, position: Point }` | Callback that is called when user double taps on the map.