Join the social network of Tech Nerds, increase skill rank, get work, manage projects...
 
  • XML Parsing

    • 0
    • 3
    • 0
    • 1
    • 0
    • 0
    • 0
    • 0
    • 177
    Comment on it

    Hello Readers !!

     

    Here is the second method to read the XML file.

    using UnityEngine;
    using System.Collections;
    using System.Xml;
    using System.Collections.Generic;
    
    public class XMLParsing : MonoBehaviour 
    {
        public TextMesh fileDataTextbox;
        private string path;
        private string fileInfo;
        private XmlDocument xmlDoc;
        private WWW www;
        private TextAsset textXml;
        private List<Player> Players;
        private string fileName;
    
        // Structure for mainitaing the player information
        struct Player
        {
            public int Id;
            public string name;
            public int score;
        };
    
        void Awake()
        {
            fileName = "DemoXmlFile";
            Players = new List<Player>(); // initalize player list
            fileDataTextbox.text = "";
        }
        
        void Start ()
        {
            loadXMLFromAssest();
            readXml();
        }
        // Following method load xml file from resouces folder under Assets
        private void loadXMLFromAssest()
        {
            xmlDoc = new XmlDocument();
            if(System.IO.File.Exists(getPath()))
            {
                xmlDoc.LoadXml(System.IO.File.ReadAllText(getPath()));
            }
            else
            {
                textXml = (TextAsset)Resources.Load(fileName, typeof(TextAsset));
                xmlDoc.LoadXml(textXml.text);
            }
        }
        
        void Update()
        {
            // Following code just check whether any button is touched on mouse down
            if(Input.GetMouseButtonDown(0))
            {
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                if(Physics.Raycast(ray, out hit) && hit.collider != null)
                {
                    if(hit.collider.name.Equals("ModifyXmlButton"))
                        modifyXml();
                    else if(hit.collider.name.Equals("CreateElementButton"))
                        createElement();
                }
            }
        }
        // Following method reads the xml file and display its content 
        private void readXml()
        {
            foreach(XmlElement node in xmlDoc.SelectNodes("Players/Player"))
            {
                Player tempPlayer = new Player();
                tempPlayer.Id = int.Parse(node.GetAttribute("id"));
                tempPlayer.name = node.SelectSingleNode("name").InnerText;
                tempPlayer.score = int.Parse(node.SelectSingleNode("score").InnerText);
                Players.Add(tempPlayer);
                displayPlayeData(tempPlayer);
            }
        }
        private void displayPlayeData(Player tempPlayer)
        {
            fileDataTextbox.text += tempPlayer.Id + "\t\t" + tempPlayer.name + "\t\t" + tempPlayer.score + "\n";
        }
    
        // Following method will be called by tapping ModifyXml button
        // It just multiply player's score by 10
        private void modifyXml()
        {
            fileDataTextbox.text = "";
            foreach(XmlElement node in xmlDoc.SelectNodes("Players/Player"))
            {
                int nodeId = int.Parse(node.GetAttribute("id"));
                Player tempPlayer = Players[nodeId-1];
                tempPlayer.score *= 10;
                Players[nodeId-1] = tempPlayer;
                node.SelectSingleNode("score").InnerText = tempPlayer.score + "";
                displayPlayeData(tempPlayer);
            }
            xmlDoc.Save(getPath()+".xml");
        }
    
        // Following method create new element of player
        private void createElement()
        {
            Player tempPlayer = new Player();
            tempPlayer.Id = Players.Count+1;
            tempPlayer.name = "Player"+tempPlayer.Id;
            tempPlayer.score = tempPlayer.Id*10;
            Players.Add(tempPlayer);
            displayPlayeData(tempPlayer);
    
            XmlNode parentNode = xmlDoc.SelectSingleNode("Players");
            XmlElement element = xmlDoc.CreateElement("Player");
            element.SetAttribute("id",tempPlayer.Id.ToString());
            element.AppendChild(createNodeByName("name",tempPlayer.name));
            element.AppendChild(createNodeByName("score",tempPlayer.score.ToString()));
            parentNode.AppendChild(element);
            xmlDoc.Save(getPath()+".xml");
        }
        private XmlNode createNodeByName(string name, string innerText)
        {
            XmlNode node = xmlDoc.CreateElement(name);
            node.InnerText = innerText;
            return node;
        }
    
        // Following method is used to retrive the relative path as device platform
        private string getPath(){
            #if UNITY_EDITOR
            return Application.dataPath +"/Resources/"+fileName;
            #elif UNITY_ANDROID
            return Application.persistentDataPath+fileName;
            #elif UNITY_IPHONE
            return GetiPhoneDocumentsPath()+"/"+fileName;
            #else
            return Application.dataPath +"/"+ fileName;
            #endif
        }
        private string GetiPhoneDocumentsPath()
        {
            // Strip "/Data" from path 
            string path = Application.dataPath.Substring(0, Application.dataPath.Length - 5);
            // Strip application name 
            path = path.Substring(0, path.LastIndexOf('/'));
            return path + "/Documents";
        }
    }

    Use this and be happy.

     

    Keep coding. 

 0 Comment(s)

Sign In
                           OR                           
                           OR                           
Register

Sign up using

                           OR                           
Forgot Password
Fill out the form below and instructions to reset your password will be emailed to you:
Reset Password
Fill out the form below and reset your password: