java - cannot get right result from getdefaultsharedpreferences -

when use defaultsharedpreferences save multiple data, found data covered. feel confused happened. expected values preferences

userid 2  authorizedheader bhlryxzpbjpsewthdmlu 

and retrieved values

userid 2  authorizedheader 2 

private static final string pref_authorized_query = null;  private static final string pref_userid_query = null;  public static string getstoreduseridquery(context context){     return preferencemanager.getdefaultsharedpreferences(context)             .getstring(pref_userid_query, null); }  public static string getstoredauthorizedquery(context context){     return preferencemanager.getdefaultsharedpreferences(context)             .getstring(pref_authorized_query, null); }  public static void setstoredquery(context context, string userid, string authorizedheader){     preferencemanager.getdefaultsharedpreferences(context)             .edit()             .putstring(pref_authorized_query, authorizedheader)             .putstring(pref_userid_query, userid)             .apply(); } 

you using values null both keys mean there 1 key i.e. null override each other (pref_userid_query on write previous values saved null key)

so give them values

private static final string pref_authorized_query = "authorized";  private static final string pref_userid_query = "userid"; 

you can imagine like

preferencemanager.getdefaultsharedpreferences(context)             .edit()             .putstring("null", authorizedheader)             .putstring("null", userid) // there 1 key              .apply();