XML Serialization in Windows phone 8

Windows Phone doesn't allow the usage of System.IO as described in the header of this page. They have their own scheme for Isolated Storage calls for type of data manipulation and storage.

If this is a multiple platform project, you will need to use some compiler directives(UNITY_METRO, UNITY_WP_8_1, UNITY_WINRT, UNITY_WINRT_8_1) to change the storage medium on windows phone.

Hi Landern,

I was unable to post this as a comment. My xml Serialization code is working perfectly fine in the editor but when I'm trying to build it on windows phone it is giving me an error

IsolatedStorageException: No ApplicationIdentity available for AppDomain. System.IO.IsolatedStorage.IsolatedStorage.InitStore (IsolatedStorageScope scope, System.Type appEvidenceType) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.IO.IsolatedStorage/IsolatedStorage.cs:156) (wrapper remoting-invoke-with-check) System.IO.IsolatedStorage.IsolatedStorage:InitStore (System.IO.IsolatedStorage.IsolatedStorageScope,System.Type) System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication () (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.IO.IsolatedStorage/IsolatedStorageFile.cs:247) XMLSerialize.Start () (at Assets/Demo/XMLSerialize.cs:37)

Here's a look at my code

 using UnityEngine;
 using System.Collections.Generic;
 using System.Xml.Serialization;
 using System.IO;
 using UnityEngine.UI;
 using System.IO.IsolatedStorage;
 //using Windows.Storage;
 #if NETFX_CORE
 using XmlReader = WinRTLegacy.Xml.XmlReader;
 #else
 using XmlReader = System.Xml.XmlReader;
 #endif
 public class XMLSerialize : MonoBehaviour {
 
 
     TextAsset textFile;
     static AddressDirectory obj;
     public Text showtext;
     // Use this for initialization
     void Start () {
 
 //
 
 
         showtext = GetComponent<Text>();
         //showtext.text = "house:";
          obj  = new AddressDirectory ();
         obj.addressList = new List<Address> ();
         obj.addressList.Add (new Address());
         obj.addressList [0].HouseNo = 50;
 //        SaveXmlFile (obj);
 //        AddressDirectory obj2 = LoadXmlFile ();
 //        print (obj2.addressList [0].HouseNo);
 
 //
     //    var storage = IsolatedStorageFile.GetUserStoreForApplication();
         IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication();
 //            IsolatedStorageFile.GetStore( IsolatedStorageScope.User 
 //                                         | IsolatedStorageScope.Assembly, null, null );
 
         string[] fileNames = isoStore.GetFileNames( "temp.xml");
 
         print (fileNames.Length);
         foreach ( string file in fileNames )
         {
             if ( file =="temp.xml" )
             {
                 Debug.Log("The file already exists!");
             }
         }
 
 
         IsolatedStorageFileStream oStream = 
             new IsolatedStorageFileStream( "temp.xml", 
                                           FileMode.Create, isoStore );
         
         StreamWriter writer = new StreamWriter( oStream );
                 XmlSerializer serialize = new XmlSerializer (typeof(AddressDirectory));
             
         serialize.Serialize (writer,obj);
         writer.Close();
 
                 
                 AddressDirectory obj2 = LoadXmlFile ();
                 print (obj2.addressList [0].HouseNo);
 //                showtext.text = "house:"+obj2.addressList [0].HouseNo;
     }
     
     public static void SaveXmlFile(AddressDirectory d)
     {
         IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
         IsolatedStorageFileStream stream = null;
 
         stream = new IsolatedStorageFileStream("temp.xml", 
                                                FileMode.OpenOrCreate, 
                                                FileAccess.ReadWrite, 
                                                storage);
         XmlSerializer serializer = new XmlSerializer(typeof (AddressDirectory));
         serializer.Serialize(stream, obj);
 
 
 //        XmlSerializer serialize = new XmlSerializer (typeof(AddressDirectory));
 //        TextWriter writer = new StringWriter() ;
 //        serialize.Serialize (writer,d);
 //        File.WriteAllText (Application.dataPath+"/temp.xml",writer.ToString ());
 //        print (writer+ "   " );
         
         
     }
 
 
     public static AddressDirectory LoadXmlFile()
     {
 //
 //        IsolatedStorageFile isoStore = 
 //            IsolatedStorageFile.GetStore( IsolatedStorageScope.User 
 //                                         | IsolatedStorageScope.Assembly, null, null );
         IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication();
 
 
         IsolatedStorageFileStream oStream = 
             new IsolatedStorageFileStream( "temp.xml", 
                                           FileMode.Open, isoStore );
         
 
         XmlSerializer serializer = new XmlSerializer(typeof (AddressDirectory));
         //serializer.Serialize(stream, obj);
         AddressDirectory gData = (AddressDirectory)serializer.Deserialize (oStream);
 
         
 //        string str = File.ReadAllText (Application.dataPath+"/temp.xml");
 //        XmlSerializer deSerialize = new XmlSerializer (typeof(AddressDirectory));
 //        TextReader reader = new StringReader(str) ;
 //        AddressDirectory gData = (AddressDirectory)deSerialize.Deserialize (reader);
         //print (str);
         
         return gData;
     }
 }
 
 public class AddressDirectory
 {
     [XmlElement("Address")] 
     public List<Address> addressList = new List<Address>(); 
 
 }
 public class Address
 {
     public int HouseNo ;
     public string StreetName;
     public string City ;
 
     public Address()
     {
         HouseNo = 90;
 
     }
 }