什麼對應於Android Google Map API V2中的geopoint？

Question

以前，我創建了Android中地圖API V1擴展的GeoPoint類：

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; 
    } 
} 

現在我切換到V2，我應該怎麼擴大？它應該是LatLng嗎？但是當我切換到LatLng時，它說：CyclePoint類型不能繼承最終的類LatLng。誰能幫我這個？非常感謝！

Answer 1

使用組合而不是繼承，即在CyclePoint中使LatLng成爲一個字段。

Answer 2

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

這個對象非常有用！ ü只需要創建一個實例

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

PS：緯度和經度必須是double類型。