Using Json Data in EnhancedScroller

[echo17]

EnhancedScroller can use any data source (or none at all if you prefer). The scroller itself doesn't see the data or how it is structured, so your controller will handle that.

For example, if you had some json data that looked like:


{
 "records": [
   {
     "fieldA": "Hello",
     "fieldB": 22.2
   },
   {
     "fieldA": "World",
     "fieldB": 100.1
   },
   {
     "fieldA": "Something",
     "fieldB": 9.2
   }
 ]
}


And you set up your data class like:



using System;

[Serializable]
public class Data
{
   public Record[] records;
}

[Serializable]
public class Record
{
   public string fieldA;
   public float fieldB;
}



Then your controller could look like:


using UnityEngine;
using System.Collections;
using EnhancedUI;
using EnhancedUI.EnhancedScroller;

public class JsonDemo : MonoBehaviour, IEnhancedScrollerDelegate
{
   private Data _data;
   public EnhancedScroller scroller;
   public EnhancedScrollerCellView cellViewPrefab;
   public TextAsset json_data;

   void Start()
   {
       Application.targetFrameRate = 60;
       scroller.Delegate = this;
       _data = JsonUtility.FromJson<Data>(json_data.text);
       scroller.ReloadData();
   }

   public int GetNumberOfCells(EnhancedScroller scroller)
   {
       return (_data != null && _data.records != null ? _data.records.Length : 0);
   }

   public float GetCellViewSize(EnhancedScroller scroller, int dataIndex)
   {
       return 200f;
   }

   public EnhancedScrollerCellView GetCellView(EnhancedScroller scroller, int dataIndex, int cellIndex)
   {
       CellView cellView = scroller.GetCellView(cellViewPrefab) as CellView;
       cellView.name = "Cell " + dataIndex.ToString();
       cellView.SetData(_data.records[dataIndex]);
       return cellView;
   }
}




and your cell view like:


using UnityEngine;
using UnityEngine.UI;
using EnhancedUI.EnhancedScroller;

public class CellView : EnhancedScrollerCellView
{
   public Text someTextText;

   public void SetData(Record data)
   {
       someTextText.text = data.fieldA + ": " + data.fieldB.ToString();
   }
}



[echo17]

I'm not sure what you are asking specifically, but data gathering is outside of the scope of my support for EnhancedScroller. The plugin is a way to virtualize cells in a scroller, but how the data is gathered is up to you to implement. You might be able to find a plugin on the Asset Store to handle this. I'm sure there are many tutorials related to this on Youtube or other channels.

[echo17]

I offer free support for my products, but I just don't have the time or resources to teach general coding. I've given you a generous head start with the code above, and the demos included with the plugin show every way it can be used.

For json related coding, Give Google or Youtube a chance, there are thousands of people that have covered pretty much everything you can think of.

[echo17]

A couple of things:

1) You are not making your json class serializable. That is a requirement to use the JsonUtility helper. Please see the example code I provided above. Again, json is outside of the scope of this plugin, so please take a look at some tutorials on how to use this for the most benefit.

2) You are starting a coroutine which runs on a separate thread. It will never finish before you call your reload data. Please take a look at some Unity tutorials on how to use coroutines.