1

我正在尝试使用Gson将地理围栏列表存储在sharedPreferences中。这是我到目前为止所做的

           ArrayListOfGeofence listOfGeofence = new ArrayListOfGeofence();

            listOfGeofence.setmGeofencesList(mGeofenceList);

            editor = goefenceIdsPreferences.edit();

            Gson gson = new Gson();

            String json = gson.toJson(listOfGeofence.mGeofencesList);

            Log.i(TAG, "Json Geofence Objects: " + json);

            editor.putString(fenceName, json).commit();

事情不是预期的那样。这是我的日志显示的内容：

Json Geofence Objects: [{"Jo":"1","NU":3,"Oz":-1,"NX":12.93217,"NY":77.63186,"NZ":300.0,"Oa":0,"Ob":-1,"NW":1,"xH":1}]

我的实际地理围栏 ArrayList 是：

ArrayListOfGeofence: [Geofence[CIRCLE id:1 transitions:3 12.932490, 77.630830 300m, resp=0s, dwell=-1ms, @-1], Geofence[CIRCLE id:2 transitions:3 12.934540, 77.628650 300m, resp=0s, dwell=-1ms, @-1]]

这就是我为ArrayListOfGeofence类写的

public class ArrayListOfGeofence implements Serializable {

/**
 * 
 */
private static final long serialVersionUID = 1L;

List<Geofence> mGeofencesList = new ArrayList<Geofence>();


public List<Geofence> getmGeofencesList()
{
    return mGeofencesList;
}

public void setmGeofencesList(List<Geofence> mGeofencesList) 
{
    this.mGeofencesList = mGeofencesList;
}

}

但我无法取回我的地理围栏对象。所以它给了我一个错误：

GSON Generic: failed to deserialized json object
4

2 回答 2

1

不要为此使用共享偏好。它不是为此而设计的，共享偏好的目的不是存储所有内容。您已经将其保存为 JSON，只需将 json 保存为文件即可

于 2014-07-15T06:50:01.583 回答
0

编辑该行： String json = gson.toJson(listOfGeofence.mGeofencesList); By: String json = gson.toJson(listOfGeofence.getmGeofencesList());

于 2014-07-15T06:57:05.143 回答