I'm storing some values in my PreferencesFragment in this way:
// SharedPreferences prefs = getActivity().getSharedPreferences("Test", 0);
SharedPreferences prefs = getPreferenceScreen().getSharedPreferences();
SharedPreferences.Editor edit = prefs.edit();
edit.putInt(getString(R.string.valOneKey), 100);
edit.putInt(getString(R.string.valTwoKey), 200);
edit.commit();
Then, I want to read the preferences in a non activity class:
// SharedPreferences prefs = ActivityHandler.getCurrentActivity().getSharedPreferences("Test", 0);
SharedPreferences prefs = ActivityHandler.getCurrentActivity().getPreferences(0);
int valOne = prefs.getInt(ActivityHandler.getCurrentActivity().getString(R.string.valOneKey), 0);
int valTwo = prefs.getInt(ActivityHandler.getCurrentActivity().getString(R.string.valTwoKey), 0);
I've tried also the uncommented code, but I get always 0 for both values.
答案 0 :(得分:1)
你做错了。每次获得不同的共享偏好时。使用此代码:
用于存储价值:
SharedPreferences prefs = getActivity().getSharedPreferences("Test", 0);
SharedPreferences.Editor edit = prefs.edit();
edit.putInt(getString(R.string.valOneKey), 100);
edit.putInt(getString(R.string.valTwoKey), 200);
edit.commit();
获取值:
SharedPreferences prefs = getActivity().getSharedPreferences("Test", 0);
int valOne = prefs.getInt(ActivityHandler.getCurrentActivity().getString(R.string.valOneKey), 0);
int valTwo = prefs.getInt(ActivityHandler.getCurrentActivity().getString(R.string.valTwoKey), 0);
希望这会对你有所帮助。
答案 1 :(得分:1)
试试这个
SharedPreferences sharedPref = getSharedPreferences("my_pref", Context.MODE_MULTI_PROCESS);
Editor editor = sharedPref.edit();
editor.putInt("KEY", VAL);
..
..
editor.commit();
SharedPreferences sharedPref = getSharedPreferences(
"my_pref", Context.MODE_MULTI_PROCESS);
int size = sharedPref.getInt("KEY", default_VAL);
这将有所帮助......谢谢