add preference helper

android/app/src/main/java/com/chatman/helper/PreferencesHelper.java

-package com.etsi.helper;
+package com.chatman.helper;
 
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -6,13 +6,8 @@ import android.preference.PreferenceManager;
 
 public class PreferencesHelper {
 
-    private static final String USER_ROLE_KEY = "user_role_key";
-    public static final boolean USER_ROLE_KREATOR = true;
-    public static final boolean USER_ROLE_SOBAT = false;
     public static final String USER_FIREBASE_KEY = "user_firebase_key";
-    public static final String KREATOR1_TIER_KEY = "kreator1_tier_key";
-    public static final String KREATOR2_TIER_KEY = "kreator2_tier_key";
-    public static String CURRENT_KREATOR_KEY;
+    public static final String USER_NAME = "user_name";
 
     private static void setBooleanPreferences(Context context, String key, boolean value) {
         SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
@@ -50,14 +45,6 @@ public class PreferencesHelper {
         return preferences.getInt(key, 0);
     }
 
-    public static void setUserRole(Context context, boolean value) {
-        setBooleanPreferences(context, USER_ROLE_KEY, value);
-    }
-
-    public static boolean getUserRole(Context context) {
-        return getBooleanPreferences(context, USER_ROLE_KEY);
-    }
-
     public static void setUserFirebaseKey(Context context, String value) {
         setStringPreferences(context, USER_FIREBASE_KEY, value);
     }
@@ -66,28 +53,13 @@ public class PreferencesHelper {
         return getStringPreferences(context, USER_FIREBASE_KEY);
     }
 
-    public static void setKreator1TierKey(Context context, int value){
-        setIntPreferences(context, KREATOR1_TIER_KEY, value);
+    public static void setUserName(Context context, String value) {
+        setStringPreferences(context, USER_NAME, value);
     }
 
-    public static int getKreator1TierKey(Context context){
-        return getIntPreferences(context, KREATOR1_TIER_KEY);
+    public static String getUserName(Context context) {
+        return getStringPreferences(context, USER_NAME);
     }
 
-    public static void setKreator2TierKey(Context context, int value){
-        setIntPreferences(context, KREATOR2_TIER_KEY, value);
-    }
 
-    public static int getKreator2TierKey(Context context){
-        return getIntPreferences(context, KREATOR2_TIER_KEY);
-    }
-
-
-    public static String getCurrentKreatorKey() {
-        return CURRENT_KREATOR_KEY;
-    }
-
-    public static void setCurrentKreatorKey(String value) {
-       CURRENT_KREATOR_KEY = value;
-    }
 }