对UGUI的GridLayoutGroup组件进行拓展

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最在在工作过程经常会使用到Grid Layout Group 组件，在使用的过程中发现对Grid Layout Group应用都是差不多的，主要的区别是显示的Item内容不同。所以就想把Item抽离成BaseItem，然后在用MyGrid继承Grid Layout Group。代码如下：

BaseItem

using UnityEngine;using System.Collections;public abstract class BaseItem : MonoBehaviour {    /// <summary>    /// 给Item传递数据    /// </summary>    /// <param name="date"></param>    public abstract void setDate(object date);}

MyGrid

using UnityEngine;using System.Collections;using UnityEngine.UI;public class MyGrid : GridLayoutGroup {    /// <summary>    /// 保存你要显示的item的类名    /// </summary>    private string itemName;    public void Init(string name)    {        itemName = name;    }    /// <summary>    /// 把数据传递给item    /// </summary>    /// <typeparam name="T">操作item的业务类</typeparam>    /// <param name="value">item的业务数据</param>    public void SetValue<T>(object[] value)    {        //隐藏grid下的item        HideChild(this.gameObject);        //如果grid下的item数量小于数据要显示的item，则生成item        if (gameObject.transform.childCount < value.Length)        {            for (int i = gameObject.transform.childCount; i < value.Length; i++)            {                GameObject item = CreateChild(i);                item.AddComponent(typeof(T));            }        }        //把数据赋值给每个item        for (int i = 0; i < value.Length; i++)        {            GameObject go = transform.FindChild((i + 1).ToString()).gameObject;            BaseItem item = go.GetComponent(typeof(T)) as BaseItem;    go.SetActive(true);            item.setDate(value[i]);                      Debug.Log(item.name);        }    }    /// <summary>    /// 生成子对象    /// </summary>    /// <param name="index"></param>    /// <returns></returns>    private GameObject CreateChild(int index)    {        //这里为里方便，我直接从Resources加载        GameObject go = Resources.Load(itemName) as GameObject;        GameObject item = Instantiate(go);        item.name = (index + 1).ToString();        item.transform.parent = this.gameObject.transform;        item.SetActive(false);        return item;    }    /// <summary>    /// 隐藏所有子对象    /// </summary>    /// <param name="go"></param>    private void HideChild(GameObject go)    {        for (int i = 0; i < go.transform.childCount; i++)        {            GameObject obj = go.transform.FindChild((i + 1).ToString()).gameObject;            obj.SetActive(false);        }    }}

下面是具体的测试内容

Item1：item的业务类

using UnityEngine;using System.Collections;public class Item1 {    public string name;    public string age;    public string gender;}

BtnItem：继承BaseItem

using UnityEngine;using System.Collections;using System;using UnityEngine.UI;public class BtnItem : BaseItem{    private Text NameText;    private Text AgeText;    private Text GenderText;    private Button btn;void Awake(){NameText = this.gameObject.transform.FindChild("NameText").gameObject.GetComponent<Text>();AgeText = this.gameObject.transform.FindChild("AgeText").gameObject.GetComponent<Text>();GenderText = this.transform.FindChild("GenderText").gameObject.GetComponent<Text>();btn = this.transform.FindChild("btn").gameObject.GetComponent<Button>();}    void Start()    {           }    public override void setDate(object date)    {        Item1 item = (Item1)date;//Debug.Log (item.name);//Debug.Log (item.age);//Debug.Log (item.gender);        NameText.text = item.name;        AgeText.text = item.age + "";        GenderText.text = item.gender;        btn.onClick.AddListener(OnClick);    }    private void OnClick()    {        Debug.Log("我是item:" + this.name);    }}

Test：测试类

using UnityEngine;using System.Collections;using System.Collections.Generic;using System.IO;public class Test : MonoBehaviour {    List<Item1> list = new List<Item1>();// Use this for initializationvoid Start () {        GetValue();                //对Grid进行初始化        gameObject.GetComponent<MyGrid>().Init("Item1");                //对grid进行赋值        gameObject.GetComponent<MyGrid>().SetValue<BtnItem>(list.ToArray());         }// Update is called once per framevoid Update () {}/// <summary>/// 获取测试数据/// </summary>    private void GetValue()    {        string str = Resources.Load("T1").ToString();        string[] strs = str.Split('\n');        for (int i = 0; i < strs.Length; i++)        {            string[] data = strs[i].Split('|');            Item1 item = new Item1();            item.name = data[0];            item.age = data[1];            item.gender = data[2];                       list.Add(item);        }    }}

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