问题描述
我一直在寻找这一点 - 但发现只有如何保存的ArrayList比如这个code:
编辑器prefsEditor = M prefs.edit();
GSON GSON =新GSON();
JSON字符串= gson.toJson(myObject的);
prefsEditor.putString(MyObject来,JSON);
prefsEditor.commit();
我要存储这个对象(点),这是在共享preferences的LatLng,在那之后我需要从这个拯救得到它。以下是我想要保存:
公共无效onMapClick(经纬度点){
// TODO自动生成方法存根 mMap.addMarker(。新的MarkerOptions()位置(点));
** checkPoints.add(点); **
}
而不是使用preferences,你可以使用SQLite数据库。但是,如果你坚持使用共享preferences那么我不认为你有太多的选择,你只能存储布尔型,浮点型,整型,长字符串或StringSet。唯一可能的办法,我看到的是,您连接所有的值用自己喜欢分离
1123.4456:1234.223 | 1123.4456:1234.1233 | 1123.4456:1234.223 | 1123.4456:1234.223
,然后检索时,它只是解析。
I was looking for this - but found only how to save an arrayList for example this code:
Editor prefsEditor = mPrefs.edit();
Gson gson = new Gson();
String json = gson.toJson(MyObject);
prefsEditor.putString("MyObject", json);
prefsEditor.commit();
I want to store this object(point) which is LatLng in SharedPreferences, after that i will need to get it from this save. Here is what i want to save:
public void onMapClick(LatLng point) {
// TODO Auto-generated method stub
mMap.addMarker(new MarkerOptions().position(point));
**checkPoints.add(point);**
}
Instead of using preferences you can use Sqlite database. But if you insist on using SharedPreferences then I don't think you have much choice as you can only store boolean, float, int, long, String or StringSet. The only possible way I see is that you concatenate all of the values with your own separator like
1123.4456:1234.223|1123.4456:1234.1233|1123.4456:1234.223|1123.4456:1234.223
and then just parse when retrieving it.
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