什么对应Android谷歌地图API V2中的geopoint？

Question

以前,我创建了一个在Android Map API v1中扩展GeoPoint的类:

class CyclePoint extends GeoPoint {
    public float accuracy;
    public double altitude;
    public float speed;
    public double time;

    public CyclePoint(int lat, int lgt, double currentTime) {
        super(lat, lgt);
        this.time = currentTime;
    }

    public CyclePoint(int lat, int lgt, double currentTime, float accuracy) {
        super(lat, lgt);
        this.time = currentTime;
        this.accuracy = accuracy;
    }

    public CyclePoint(int lat, int lgt, double currentTime, float accuracy, double altitude, float speed) {
    super(lat, lgt);
    this.time = currentTime;
    this.accuracy = accuracy;
    this.altitude = altitude;
    this.speed = speed;
    }
}

现在我切换到V2,我应该扩展什么？它应该是LatLng吗？但是当我切换到LatLng时,它说:类型CyclePoint不能继承最终类LatLng.谁能帮我这个？非常感谢!

Answer 1

LatLng对象! http://developer.android.com/reference/com/google/android/gms/maps/model/LatLng.html

这个对象非常有用!你只需要创建一个实例

ex:
    LatLng home = new LatLng(-34.3232,-8.31331); // instanciate a new Latlng
    home.getLatitude();  // get latitude
    home.getLongitude(); // get longitude

ps:纬度和经度必须是双重类型.

Answer 2

使用组合而不是继承，即使 LatLng 成为 CyclePoint 中的一个字段。