Unity3D快速实现UI架构设计二

来源：互联网发布：java实现文件加密编辑：程序博客网时间：2024/05/19 03:44

笔者介绍：姜雪伟，IT公司技术合伙人，IT高级讲师，CSDN社区专家，特邀编辑，畅销书作者，国家专利发明人;已出版书籍：《手把手教你架构3D游戏引擎》电子工业出版社和《Unity3D实战核心技术详解》电子工业出版社等。

CSDN视频网址：http://edu.csdn.net/lecturer/144

在快速实现UI架构设计一中已经实现了两个类，这两个类都是通用的类，它们把UI的大部分功能都实现了，接下来继续类的编写，我们使用PluginManager类中的方法，所以这个类也需要实现一下：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using UnityEngine;/// <summary>/// 插件管理器/// </summary>public class PluginManager : Manager<PluginManager, string, PluginManager.Plugin>{    public class Plugin : IDisposable    {        public delegate void EventHandler(string eventName, GameObject sender, object arg);        EventHandler nEventHandler;        /// <summary>        /// 初始化        /// </summary>        public virtual void Init() {}        /// <summary>        /// 退出        /// </summary>        public virtual void Exit() {}        /// <summary>        /// 插件事件分发器        /// </summary>        /// <param name="eventName"></param>        /// <param name="sender"></param>        /// <param name="args"></param>        public void OnEvent(string eventName,GameObject sender, object args) {            if(nEventHandler != null)            {                nEventHandler(eventName,sender,args);            }        }        /// <summary>        /// 设置事件监听        /// </summary>        /// <param name="handler"></param>        public void SetEventHandler(EventHandler handler)        {            nEventHandler= handler;        }        /// <summary>        /// 销毁        /// </summary>        public void Dispose()        {            Exit();        }    }    /// <summary>    /// 初始化    /// </summary>    public void Init()    {        this.Put("NGUI",new NGUIExt());       // this.Put("FingerGuestures", new FingerGuesturesExt());        //this.Put("TwoDExt", new TwoDExt());        foreach(Plugin plugin in Values)        {            plugin.Init();        }    }    /// <summary>    /// 退出    /// </summary>    public void Exit()    {        foreach (Plugin plugin in Values)        {            plugin.Exit();        }    }}

该类也是继承于Manager类，设置了事件监听函数，在UIService函数中还有一个NGUIExt类的调用，下面再把该函数实现如下如下所示；

using UnityEngine;using System.Collections;/// <summary>/// NGUI 插件管理器 /// </summary>public class NGUIExt : PluginManager.Plugin{    /// <summary>    /// 初始化    /// </summary>    public override void Init()    {        bool success = _CreateUI(true, (int)LayerUtils.ELayerIndex.ui);        if (!success) Looper.Log("_CreateRoot called more the one!!");        Looper.Log("NGUIExt Init");        CreateUI3D((int)LayerUtils.ELayerIndex.UIInScene);    }    /// <summary>    /// 退出    /// </summary>    public override void Exit()     {        Looper.Log("NGUIExt Exit");    }    /// <summary>    /// 手指是否触摸到GUI上面了    /// </summary>    public bool IsFingerHoverGUI    {        get { return (UICamera.lastHit.collider != null); }    }     public bool IsFingerHoverGUI3D()     {         return UICamera.lastHit.collider != null && UICamera.lastHit.collider.gameObject.layer == (int)LayerUtils.ELayerIndex.UIInScene;     }     public bool IsFingerHoverGUIWithout3D()     {         return UICamera.lastHit.collider != null && UICamera.lastHit.collider.gameObject.layer != (int)LayerUtils.ELayerIndex.UIInScene;     }    public bool IsPrefab(GameObject ui_prefab)    {        if (UICamera.lastHit.collider != null)        {            Transform hit = UICamera.lastHit.collider.transform;            while (hit != null)            {                if (hit.gameObject == ui_prefab)                {                    return true;                }                hit = hit.parent;            }        }        return false;    }    GameObject mUICamera = null;    public Camera UICamera3D { get; private set; }    public Transform PlaceRoot { get; private set; }    public GameObject GetRoot()    {        if (mUICamera == null)        {            UIRoot root = UIRoot.list[0];            if (root == null)            {                 return null;            }            UICamera camera = root.GetComponentInChildren<UICamera>();            if(camera == null)            {                            }            mUICamera = camera.gameObject;        }        return mUICamera;    }    public UIRoot GetUIRoot()    {        return UIRoot.list[0];    }    /// <summary>    /// 获取NGUI的对应的屏幕宽高    /// </summary>    /// <returns></returns>    public Vector2 GetSize()    {        UIRoot root = UIRoot.list[0];        float s = (float)root.activeHeight / Screen.height;        int height =  Mathf.CeilToInt(Screen.height * s);        int width = Mathf.CeilToInt(Screen.width * s);        return new Vector2(width, height);    }    /// <summary>    /// 获取当前控件的根面板（UI是以）    /// </summary>    /// <param name="obj"></param>    /// <returns>obj 所在的根面板</returns>    public GameObject GetRootPanel(GameObject obj)    {        Transform parent = obj.transform.parent;        UIPanel panel = null;        while (parent != null)        {            if (mHudPanel != null)            {                if (parent.gameObject == mHudPanel.gameObject)                    break;            }            if (parent.gameObject.GetComponent<UICamera>() != null)                break;            UIPanel tempPanel = parent.GetComponent<UIPanel>();            if (tempPanel != null)            {                panel = tempPanel;            }            parent = parent.parent;        }        if (panel == null)        {            return null;        }        return panel.gameObject;    }    /// <summary>    /// 添加NGUI子对象    /// </summary>    /// <param name="prefab"></param>    /// <returns></returns>    public GameObject AddChild(GameObject prefab)    {        return NGUITools.AddChild(mUICamera.gameObject, prefab);    }    static public UIPanel AddPanel(GameObject go,string name = "panel")    {        if (go == null) return null;        int depth = UIPanel.nextUnusedDepth;        UIPanel panel = NGUITools.AddChild<UIPanel>(go);        panel.name = name;        panel.depth = depth;        return panel;    }    UIPanel mEffectPanel;    public UIPanel GetEffectPanel()    {        if (mEffectPanel == null)        {            mEffectPanel = AddPanel(GetRoot());            if (mEffectPanel != null)            {                mEffectPanel.depth = 0;            }        }        return mEffectPanel;    }    public UIPanel GetHudPanel()    {        if (mHudPanel == null)        {            mHudPanel = AddPanel(GetRoot());            if(mHudPanel != null)            {                mHudPanel.depth = -2;            }        }        return mHudPanel;    }    public void ApplyHud(GameObject panel, Transform target)    {        panel.transform.parent = GetHudPanel().transform;        UIFollowTarget uifollow = panel.gameObject.GetComponent<UIFollowTarget>();        if (uifollow == null)        {            uifollow = panel.gameObject.AddComponent<UIFollowTarget>();        }        if (uifollow != null)        {            uifollow.target = target;            uifollow.enabled = true;            uifollow.SetVisible(true);        }    }    UIPanel mHudPanel;        /// <summary>    ///创建UI    /// </summary>    /// <param name="is2D"></param>    /// <param name="layer"></param>    /// <returns></returns>    private bool _CreateUI(bool is2D,int layer)    {        if (UIRoot.list.Count == 0)        {            UIPanel root = NGUITools.CreateUI(!is2D, layer);            {                UIRoot.list[0].scalingStyle = UIRoot.Scaling.FixedSizeOnMobiles;            }            //UIRoot.list[0].adjustByDPI = true;            UIRoot.list[0].maximumHeight = UIRoot.list[0].minimumHeight = UIRoot.list[0].manualHeight = 768;            Camera cam = UIRoot.list[0].gameObject.GetComponentInChildren<Camera>();//            //cam.transform.position = new Vector3(0,0,9999);            cam.clearFlags = CameraClearFlags.Depth;            cam.farClipPlane = 100f;            cam.depth = 3;            cam.GetComponent<UICamera>().eventReceiverMask = 1 << layer;            mUICamera = cam.gameObject;            mHudPanel = AddPanel(mUICamera,"panel_hub");            return true;        }        return false;    }     void CreateUI3D(int layer)     {      }}

给读者封装这些类的目的是提供一种编写思路，接下来我们将它们应用到项目开发中。

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