UI框架：ui节点控件的绑定方式

<1>思路
   1.使用拖拽，生成lua
   2.find(path) 麻烦
   3.声明就完事了 效率问题
<2>代码
using UnityEngine;
using System.Collections.Generic;
using System.Reflection;
using UnityEngine.UI;

public class UIWidget
{
    protected GameObject root;
    public UIWidget(GameObject root)
    {
        this.root = root;
        init();
    }
    protected virtual void init()
    {

    }

    public virtual void dispose()
    {

    }

}
public class LImage : UIWidget
{
    public LImage(GameObject root) : base(root)
    {
    }

    protected Image _image;
    protected override void init()
    {
        _image = this.root.GetComponent<Image>();
    }

    public void setSprite(string spName)
    {
        //this._image = 
    }
    public void setSprite(Sprite sprite)
    {
        this._image.sprite = sprite;
    }

}
public class LText : UIWidget
{
    public LText(GameObject root) : base(root)
    {
    }

    protected Text _text;
    protected override void init()
    {
        _text = this.root.GetComponent<Text>();
    }

    public void setText(string str)
    {
        this._text.text = str;
    }

}

/// <summary>
/// 关于UI控件的绑定
/// 1.声明public成员 编辑器拖拽赋值            一般般(很多项目是用的这种方式 动态生成lua代码)
/// 2.在初始化函数中 transfrom.find(path)  写path太麻烦 层级更改 path更改
/// 3.只需要声明  比如public string NameText = "Text"; 赋值:uiPool[NameText].setText(string) 需要强转有点烦(lua弱类型可以直接赋值this.NameText)
///                           比如 public void enterBtn_click_event(),声明点击函数,ui上的enterBtn自动绑定此方法
///                           效率有点问题 用了反射 节点查找用递归(可以编辑器下生成path 运行时find)
///                           但是很方便 只需要声明这些ui控件就行了
/// </summary>
public class TRefTest : MonoBehaviour
{
    public string NameText = "Text";
    public string IconImg = "Image";

    public void enterBtn_click_event()
    {
        Debug.LogError("盘子脸");
    }

    private Dictionary<string, UIWidget> uiPool = new Dictionary<string, UIWidget>();

    // Use this for initialization
    void Start()
    {
        FieldInfo[] info = this.GetType().GetFields();
        for (int i = 0; i < info.Length; i++)
        {
            //字段名
            string fieldName = info[i].Name;
            object obj = info[i].GetValue(this);
            //字段值
            string fieldValue = obj.ToString();
            //如果是ui组件名称之一 
            UIWidget uIWidget = createUI(fieldName, fieldValue);
            uiPool.Add(fieldName, uIWidget);
            //替换了字段的值
            info[i].SetValue(this, fieldName);
        }
        //对text设值
        LText text = uiPool[NameText] as LText;
        text.setText("盘子脸");

        MethodInfo[] methods = this.GetType().GetMethods();
        for (int i = 0; i < methods.Length; i++)
        {
            string mName = methods[i].Name;
            if (mName.IndexOf("_event") != -1)
            {
                //bind method
                bindMethod(mName, methods[i]);
            }
        }
    }

    void bindMethod(string name, MethodInfo method)
    {
        string[] lst = name.Split('_');
        GameObject root = this.transform.Find(lst[0]).gameObject;
        Button btn = root.GetComponent<Button>();
        if (btn == null)
        {
            btn = root.AddComponent<Button>();
        }
        btn.onClick.AddListener(() => { method.Invoke(this, null); });
    }

    void OnDispose()
    {
        foreach (var item in uiPool)
        {
            item.Value.dispose();
        }
    }
    //通过声明的字段名称(即ui节点名称)
    //和字段值(即ui类型 text image toggle ...)
    //创建对应的ui控件
    public UIWidget createUI(string name, string widget)
    {
        //递归查找
        GameObject root = this.transform.Find(name).gameObject;
        UIWidget uIWidget;
        //通过类型创建widget
        //反射创建?
        switch (widget)
        {
            case "Text":
                uIWidget = new LText(root);
                break;
            case "Image":
                uIWidget = new LImage(root);
                break;
            default:
                uIWidget = new UIWidget(root);
                break;
        }
        return uIWidget;
    }

}