support all major types

Extensions/ISharedPreferencesEditor.cs

@@ -21,19 +21,29 @@ namespace SharedSettingsAbstraction.Extensions
            if (refType == typeof(string))
            {
                ed.PutString(key,(String)value);
+               return;
            }
            if (refType == typeof(bool))
            {
                ed.PutBoolean(key, (bool)value);
+               return;
            }
            if (refType == typeof(int))
            {
                ed.PutInt(key, (int)value);
+               return;
            }
            if (refType == typeof(float))
            {
                ed.PutFloat(key, (float)value);
+               return;
            }
+           if (refType == typeof(long))
+           {
+               ed.PutLong(key, (long)value);
+               return;
+           }
+           throw new InvalidOperationException("Type not supported, only use String, Bool, Int, Float, Long");
        }
     }
 }