setNewLatLngZoom method
- {@required BMFCoordinate coordinate,
 - @required double zoom,
 - int animateDurationMs}
 
设置地图中心点以及缩放级别(IOS不支持该接口)
BMFCoordinatecoordinate 要设定的地图中心点坐标,用经纬度表示
zoom 缩放级别
animateDurationMs 动画时间
bool 成功返回true 失败false
Implementation
Future<bool> setNewLatLngZoom(
    {@required BMFCoordinate coordinate,
    @required double zoom,
    int animateDurationMs}) async {
  return await BMFMapDispatcherFactory.instance
      .getMapStateDispatcher()
      .setNewLatLngZoomDispatcher(_mapChannel,
          coordinate: coordinate,
          zoom: zoom,
          animateDurationMs: animateDurationMs);
}