I have prepared xml files with some content and want to load it while playing on iOS device but also I want to change loaded data and serialize it in the same file again. In Unity Editor (Windows) it works perfectly, but when I test it on iOS device it seems that I can read from StreamingAssets using WWW class, but I can't write into it. Also I have found that I can read and write into path created by Application.persistentDataPath. But it seems that location somewhere in device and I can't put my xml into that location and users have access to that folder so that isn't good solution, isn't it?
Here code that I use to load and save the data.
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using System.Xml.Serialization;
using System.IO;
using System.Xml;
public class testxml : MonoBehaviour {
public Text result;
public InputField firstPart, secondPart;
public Toggle toggle;
private List<int> listToSave;
// Use this for initialization
void Start () {
listToSave = new List<int>();
}
public void Save()
{
Serialize();
}
public void Load()
{
StartCoroutine(Deserialize());
}
private void Serialize()
{
string path = GetPath();
try
{
Debug.Log("trying to save");
var serializer = new XmlSerializer(typeof(List<int>));
using (var fs = new FileStream(path, FileMode.OpenOrCreate))
{
serializer.Serialize(fs, listToSave);
}
}
catch (XmlException e)
{
result.text = "error";
Debug.LogError(path + " with " + (toggle.isOn ? "persistent data path" : "data path"));
Debug.LogError("xml exc while des file : " + e.Message);
}
catch (System.Exception e)
{
result.text = "error";
Debug.LogError("exc while des file : " + e.Message);
Debug.LogError(path + " with " + (toggle.isOn ? "persistent data path" : "data path"));
System.Exception exc = e.InnerException;
int i = 0;
while (exc != null)
{
Debug.Log("inner " + i + ": " + exc.Message);
i++;
exc = exc.InnerException;
}
}
}
private IEnumerator Deserialize()
{
Debug.Log("trying to load");
string path = GetPath();
var www = new WWW(path);
yield return www;
if (www.isDone && string.IsNullOrEmpty(www.error))
{
try
{
var serializer = new XmlSerializer(typeof(List<int>));
MemoryStream ms = new MemoryStream(www.bytes);
listToSave = serializer.Deserialize(ms) as List<int>;
ms.Close();
result.text += "Done\n";
foreach (var i in listToSave)
result.text += i + "\n";
}
catch (XmlException e)
{
result.text = "error";
Debug.LogError(path + " with " + (toggle.isOn?"persistent data path":"data path"));
Debug.LogError("xml exc while des file : " + e.Message);
}
catch (System.Exception e)
{
result.text = "error";
Debug.LogError("exc while des file : " + e.Message);
Debug.LogError(path + " with " + (toggle.isOn ? "persistent data path" : "data path"));
System.Exception exc = e.InnerException;
int i = 0;
while(exc!=null)
{
Debug.Log("inner "+i+": " + exc.Message);
i++;
exc = exc.InnerException;
}
}
yield break;
}
else
{
Debug.LogError("www exc while des file " + www.error);
Debug.LogError(path + " with " + (toggle.isOn ? "persistent data path" : "data path"));
yield break;
}
}
private string GetPath()
{
string path = firstPart.text;
if (toggle.isOn)
{
path += Application.persistentDataPath;
}
else
path += Application.dataPath;
path += secondPart.text;
return path;
}
}
