activity.getPreferences(mode)
sharedPreferences.edit()
我可以这样做吗?
(在一些活动课上):
//...
private SharedPreferences pref;
private Editor editor;
onCreate() {
pref = getPreferences(Activity.MODE_PRIVATE);
editor = pref.edit();
}
onDestroy() {
int someSavedInt = pref.getInt("SomeInt", 0);
editor.putInt("SomeInt", someSavedInt * 2);
}
//...
或者总是在使用之前我应该得到pref
and的值editor
?