# toJson method - MinMaxZoomPreference class - amap_map library - Dart API
API docs for the toJson method from the MinMaxZoomPreference class, for the Dart programming language.

1. amap_map
2. amap_map
3. MinMaxZoomPreference
4. toJson method

##### MinMaxZoomPreference class

1. Constructors
2. MinMaxZoomPreference
3. Properties
4. hashCode
5. maxZoom
6. minZoom
7. runtimeType
8. Methods
9. noSuchMethod
10. toJson
11. toString
12. Operators
13. operator ==
14. Constants
15. defaultPreference

# toJson method

dynamic toJson ()

JSON序列化.

## Implementation

    dynamic toJson() => <dynamic>[minZoom, maxZoom];