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Unity3D快速实现UI架构设计（一）

发表于2017-05-15
评论2 3.7k浏览

在使用Unity3D引擎做开发时，UI资源的加载，卸载，隐藏以及UI渐变动画等功能是UI架构设计必须要想到的。

考虑到每做一款游戏都需要将这些功能编写一遍非常的浪费时间，下面就给大家分享一种快速实现UI架构设计的方式。


PS：因为我们这个是通用的模块，所以必须要使用模板实现，而且我们的逻辑脚本是不挂接到对象上的。

接下来首先设计一个管理类Manager，代码如下所示：

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using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
///  
/// 抽象管理类 
///  
///  
///  
public class Manager""> : Singleton 
    where V : class ,IDisposable 
    where T : Singleton, new() 
{ 
    protected Dictionary""> mMap = new Dictionary"">(); 
    
    ///  
    /// 获取 对应实体 
    ///  
    ///  
    ///  
    public V Get(K key) 
    { 
        if (key == null) return null; 
        return mMap.ContainsKey(key) ? mMap[key] : null; 
    } 
   
    ///  
    /// 获取类型T的 Value 
    ///  
    ///  
    ///  
    ///  
    public U Get(K key) where U : class,V  
    { 
        V v = Get(key); 
        return v as U; 
    } 
   
    ///  
    /// 获取类型T的Value 
    ///  
    ///  
    ///  
    public T Get() where T : class,V  
    { 
        foreach(V value in mMap.Values) 
        { 
            if(value.GetType().Equals(typeof(T))) 
            { 
                return value as T; 
            } 
        } 
        return null; 
    } 
    ///  
    /// 添加对应实体 
    ///  
    ///  
    ///  
    public bool Put(K key, V value) 
    { 
        if (mMap.ContainsKey(key)) 
        { 
            if (value == mMap[key]) 
            { 
                return false; 
            } 
            V v = mMap[key]; 
            mMap[key] = value; 
            v.Dispose(); 
        } 
        else 
        { 
            mMap.Add(key, value); 
        } 
        return true; 
    } 
   
    ///  
    /// 删除 
    ///  
    ///  
    ///  
    public bool Remove(K key) 
    { 
        if (mMap.ContainsKey(key)) 
        { 
            V v = mMap[key]; 
            mMap.Remove(key); 
            v.Dispose(); 
        } 
        return true; 
    } 
   
   
    public Dictionary.ValueCollection Values 
    { 
        get { return mMap.Values; } 
    } 
    ///  
    /// 清除所有管理的对象 
    ///  
    public void Clear() 
    { 
        foreach (V value in mMap.Values) 
        { 
            value.Dispose(); 
        } 
        mMap.Clear(); 
    } 
} 
   
public class ManagerT""> : Manager 
    where V : class ,IDisposable 
{ 
   
} 
 

在这个类属于抽象类，它利用Dictionary实现了对象的管理操作，接下来需要实现UI的管理类了，先把代码给读者展示如下：

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using System; 
using System.Collections; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using UnityEngine; 
   
///  
/// UI 服务类 
///  
public class UIService : Managerstring,="" uiservice.ui="">,IDisposable 
{ 
    public void Dispose() 
    { 
        DestroyAll(); 
    } 
   
    ///  
    /// 创建UI 
    ///  
    ///  
    ///  
    ///  
    private T _CreateUI(string name) where T : UI 
    { 
        T ui = Activator.CreateInstance(typeof(T), name) as T; 
        return ui; 
    } 
   
    public class UIHolder : MonoBehaviour 
    { 
        public UI ui { get; set; } 
    } 
    public class UI : IDisposable 
    { 
        public UI(string name) 
        { 
                _Init(name);   
        } 
   
        public enum UIStyle 
        { 
            Normal,//默认类型 
            HideByTapScene,//点击空白处隐藏类型，和黑底不冲突 
        } 
   
        UIStyle mStyle = UIStyle.Normal; 
   
        public UIStyle Style 
        { 
            get { return mStyle; } 
            set { mStyle = value; } 
        } 
   
        internal GameObject mPrefab = null; 
        protected UIPanel mPanel = null; 
        #region 面板动画处理 
        protected UITweener[] mTweens = null; 
        protected UITweener   mMainTween = null; 
        protected UITweener.ToggleStyle mMainToggleStyle = UITweener.ToggleStyle.normal; 
        private void _TweensInit() 
        { 
            mTweens = mPrefab.GetComponentsInChildren(); 
            if (mTweens != null) 
            { 
                UITweener tween; 
                for (int i = 0; i < mTweens.Length; ++i) 
                { 
                    tween = mTweens[i]; 
                    if (tween.toggleStyle == UITweener.ToggleStyle.OnShow) 
                    { 
                        mMainTween = tween; 
                        mMainToggleStyle = UITweener.ToggleStyle.OnShow; 
                    } 
                    if (tween.toggleStyle == UITweener.ToggleStyle.OnShowAndHide) 
                    { 
                        mMainTween = tween; 
                        mMainToggleStyle = UITweener.ToggleStyle.OnShowAndHide; 
                        break; 
                    } 
                } 
            } 
        } 
   
        private bool _HasTween() 
        { 
            return mMainTween != null && mMainTween.toggleStyle !=  UITweener.ToggleStyle.normal; 
        } 
        private void _TweenOnShow(EventDelegate.Callback call) 
        { 
            mMainTween.SetOnFinished(call); 
            UITweener tween; 
            for (int i = 0; i < mTweens.Length; ++i) 
            { 
                tween = mTweens[i]; 
                if(tween.toggleStyle != UITweener.ToggleStyle.normal) 
                { 
                    tween.ResetToStart(true); 
                    tween.PlayForward(); 
                } 
            } 
        } 
   
        private void _TweenOnHide(EventDelegate.Callback call) 
        { 
            if (mMainToggleStyle == UITweener.ToggleStyle.OnShow) 
            { 
                call(); 
                return; 
            } 
            mMainTween.SetOnFinished(call); 
            UITweener tween; 
            for (int i = 0; i < mTweens.Length; ++i) 
            { 
                tween = mTweens[i]; 
                if (tween.toggleStyle == UITweener.ToggleStyle.OnShowAndHide) 
                { 
                    tween.ResetToStart(!true); 
                    tween.PlayReverse(); 
                } 
            } 
        } 
        private void _Dummy() 
        { 
   
        } 
        private void _Hide() 
        { 
            mPrefab.SetActive(false); 
            mHiding = false; 
        } 
        #endregion 
   
        internal void _Init(string name) 
        { 
            try 
            { 
                GameObject prefab = Resource.LoadUI(name); 
                mPrefab = GameObject.Instantiate(prefab) as GameObject; 
                UIHolder uiholder = UtilGameObject.GetOrAddComponent(mPrefab); 
                uiholder.ui = this; 
                mPrefab.name = name; 
                mPanel = mPrefab.GetComponent(); //允许Panel为空 
                _TweensInit(); 
            } 
            catch (Exception e) 
            { 
                Looper.LogException(e); 
            } 
            UIService.Instance.InitUI(mPrefab); 
            UIService.Instance._OnShowUI(this, true); 
        } 
        #region <默认属性> 
    
           
        ///  
        /// 深度信息 
        ///  
        public int depth 
        { 
            get 
            { 
                if (mPanel==null) 
                { 
                    return -1; 
                } 
                return mPanel.depth; 
            } 
            set 
            { 
                if (mPanel == null) return; 
                mPanel.depth = value; 
            } 
        } 
        ///  
        /// 是否正在显示 
        ///  
        ///  
        public bool IsShowing() 
        { 
            if (mPrefab == null) 
                return false; 
            return mPrefab.activeSelf; 
        } 
        float mLastShowTime = Time.time; 
        ///  
        /// 最后一次显示的时间 
        ///  
        public float LastShowTime 
        { 
            get { return mLastShowTime; } 
            set { mLastShowTime = value; } 
        } 
        #endregion 
   
        ///  
        /// 名字（和预制件名称一样） 
        ///  
        public  string Name 
        { 
            get { return mPrefab != null ? mPrefab.name : ""; } 
        } 
        ///  
        /// 销毁对象 
        ///  
        public void Dispose() 
        { 
            UIService.Instance._OnHidUI(this); 
   
            try 
            { 
                OnClose(); 
                if (mPrefab != null) 
                { 
                    GameObject.DestroyImmediate(mPrefab); 
                    mPrefab = null; 
                } 
   
            } 
            catch (Exception e) 
            { 
                Looper.LogException(e); 
            } 
               
        } 
   
        ///  
        /// 刷新界面 
        /// 1 Grid 重排问题 
        ///  
        public void Refresh() 
        { 
              
                UIGrid[] grids = mPrefab.GetComponentsInChildren(); 
                foreach (UIGrid grid in grids) 
                { 
                    if (grid != null && !grid.animateSmoothly) 
                    { 
                        grid.Reposition(); 
                    } 
                } 
              
        } 
   
   
        public IEnumerator _Refresh() 
        { 
            { 
                UIGrid[] grids = mPrefab.GetComponentsInChildren(); 
                foreach (UIGrid grid in grids) 
                { 
                    if (grid != null && !grid.enabled) 
                    { 
                        grid.repositionNow = true; 
                        grid.Reposition(); 
                    } 
                } 
            } 
   
            yield return null; 
        } 
   
   
        //解决同一个UI动画隐藏还没结束，动画显示就开始了 状态不对的问题 
        bool mHiding = false; 
        ///  
        /// 是否显示 
        ///  
        public void Show(bool v) 
        { 
   
            if (v) 
            { 
                if (mHiding) 
                { 
                    _Hide(); 
                } 
                UIService.Instance._OnShowUI(this); 
            } 
            else 
            { 
                UIService.Instance._OnHidUI(this); 
            } 
   
            try 
            { 
   
                if (mPrefab != null) 
                { 
                       
                    if (_HasTween()) 
                    { 
                        if (v) 
                        { 
                            mPrefab.SetActive(true); 
                            _TweenOnShow(_Dummy); 
                        } 
                        else 
                        { 
                            mHiding = true; 
                            _TweenOnHide(_Hide); 
                        } 
                    } 
                    else 
                    { 
                        mPrefab.SetActive(v); 
                    } 
                    OnShow(v); 
                    if (v) 
                    { 
                        LastShowTime = Time.time; 
                        Refresh(); 
                        //(); 
                    } 
                } 
                   
            } 
            catch (Exception e) 
            { 
                Looper.LogException(e); 
            } 
   
   
        } 
   
   
        ///  
        /// 跟随场景中物体 
        ///  
        ///  
        public void ApplyHub(Transform target) 
        { 
            NGUIExt guiExt = PluginManager.Instance.Get(); 
            if (guiExt != null) 
            { 
                guiExt.ApplyHud(mPrefab, target); 
            } 
        } 
   
        public virtual void OnCreate() { } 
        public virtual void OnShow(bool v) { } 
        public virtual void OnClose() { } 
   
        ///  
        /// 点击事件 
        ///  
        /// 被点击的控件 
        public virtual void OnClick(GameObject obj) { } 
   
        ///  
        /// 双击事件 
        ///  
        /// 被双击的控件 
        public virtual void OnDoubleClick(GameObject obj) { } 
        ///  
        /// 按住事件 
        ///  
        /// 被Pressed的控件 
        ///  
        public virtual void OnPress(GameObject obj, bool isPressed) { } 
   
        ///  
        /// 拖动事件 
        ///  
        /// 拖动的控件 
        ///  
        public virtual void OnDrag(GameObject obj, Vector2 delta) { } 
   
        ///  
        /// 拖放事件 
        ///  
        /// 拖放的当前控件 
        /// 一直被拖住的控件 
        public virtual void OnDrap(GameObject obj, GameObject objSelected) { } 
   
        ///  
        /// 显示Tooltip事件 
        ///  
        ///  
        /// 显示或隐藏Tooltip 
        public virtual void OnTooltip(GameObject obj, bool isShow) { } 
   
        ///  
        /// 被选中事件 
        ///  
        /// 被选中的控件 
        /// 选中或取消被选中 
        public virtual void OnSelect(GameObject obj, bool isSelected) { } 
   
        ///  
        /// 光标划过事件 
        ///  
        ///  
        /// 光标进入或光标离开 
        public virtual void OnHover(GameObject obj, bool isHover) { } 
   
        ///  
        /// 根据类型获取对应名称控件; 
        ///  
        ///  
        ///  
        ///  
        protected T GetChild(string name,GameObject obj = null, int index = 0) where T : MonoBehaviour 
        { 
            if(obj == null) 
            { 
                obj = mPrefab; 
            } 
   
            Transform child = obj.transform.Find(name); 
            if (child == null) 
            { 
                T[] childs = obj.GetComponentsInChildren(); 
                foreach (T t in childs) 
                { 
                    if (t.gameObject.name == name) 
                    { 
                        return t; 
                    } 
                } 
            } 
            else 
            { 
                if (child.childCount == 0) 
                { 
                    return child.GetComponent(); 
                } 
   
                { 
                    int count = 0; 
                    T[] comps = child.GetComponents(); 
                    foreach (T t in comps) 
                    { 
   
                        if (t.gameObject.name == name && count == index) 
                        { 
                            return t; 
                        } 
                        count++; 
                    } 
                } 
                { 
                    int count = 0; 
                    T[] childs = child.GetComponentsInChildren(); 
                    foreach (T t in childs) 
                    { 
   
                        if (t.gameObject.name == name && count == index) 
                        { 
                            return t; 
                        } 
                        count++; 
                    } 
                } 
   
            } 
   
            Debug.LogError(obj.name + " hasn't Components :" + typeof(T).Name + " in children named:" + name); 
            return null; 
        } 
   
        protected GameObject FindChild(string name) 
        { 
            var child = mPrefab.transform.FindChild(name); 
            return child.gameObject; 
        } 
   
        protected T FindChild(string name) where T : Component 
        { 
            var child = mPrefab.transform.FindChild(name); 
            T cmp = child.GetComponent(); 
           
            return cmp; 
        } 
   
        ///  
        /// 获取对应名称子控件; 
        ///  
        ///  
        ///  
        protected GameObject GetChild(string name, GameObject obj = null) 
        { 
            if(obj == null) 
            { 
                obj = mPrefab; 
            } 
            Transform child = obj.transform.Find(name); 
            if (child == null) 
            { 
                Debug.LogError(obj.name + "is not find child of:" + name); 
                return null; 
            } 
            return child.gameObject; 
        } 
        ///  
        /// 用指定的对象替换子对象 
        ///  
        /// 子对象名字 
        /// 指定的对象 
        ///  
        protected bool ReplaceChild(string name, GameObject obj) 
        { 
            GameObject orginal = GetChild(name); 
   
            if (orginal == null) { 
                GameObject.DestroyImmediate (obj); 
                return false; 
            } 
            obj.transform.parent = orginal.transform.parent; 
            obj.transform.localPosition = Vector3.zero; 
            obj.transform.localRotation = Quaternion.identity; 
            obj.transform.localScale = Vector3.one; 
            obj.name = orginal.name; 
   
            orginal.transform.parent = null; 
            GameObject.DestroyImmediate (orginal); 
   
            return true; 
        } 
   
        ///  
        /// 用指定的对象替换子对象 
        ///  
        /// 原件 
        /// 指定的对象 
        ///  
        protected bool ReplaceChild(GameObject orginal, GameObject obj) 
        { 
            if (orginal == null) { 
                GameObject.DestroyImmediate (obj); 
                return false; 
            } 
            obj.transform.parent = orginal.transform.parent; 
            obj.transform.localPosition = Vector3.zero; 
            obj.transform.localRotation = Quaternion.identity; 
            obj.transform.localScale = Vector3.one; 
            obj.name = orginal.name; 
   
            orginal.transform.parent = null; 
            GameObject.DestroyImmediate (orginal); 
            return true; 
        } 
   
    } 
   
   
    NGUIExt mPlugin; 
    GameObject mBG; 
    UIPanel mBGPanel; 
    int mBGCount = 0; 
   
    private void _OnShowUI(UI t,bool init = false) 
    { 
        if (t.IsShowing()) 
        { 
            if(!init) 
                return; 
        } 
        if (t.IsShowBlackBG()) 
        { 
            mBGCount++; 
            if (mBGCount > 0 && mBG.activeSelf == false) 
            { 
                mBG.SetActive(true); 
            } 
            if (mBG.activeSelf) 
            { 
                mBGPanel.depth = t.depth-1; 
            } 
        } 
   
    } 
    private void _OnHidUI(UI t) 
    { 
        if (!t.IsShowing()) return; 
   
        if (t.IsShowing() && t.IsShowBlackBG()) 
        { 
            mBGCount--; 
            if(mBGCount <= 0) 
            { 
                mBGCount = 0; 
                if (mBG.activeSelf == true) 
                { 
                    mBG.SetActive(false); 
                } 
            } 
   
   
            if (mBG.activeSelf) 
            { 
                UI ui = _GetLastShowUI(true, t); 
                if (ui != null) mBGPanel.depth = ui.depth-1; 
            } 
        } 
   
    } 
   
    public bool IsFingerHoverGUI() 
    { 
        if(mPlugin == null) 
        { 
            return false; 
        } 
        return mPlugin.IsFingerHoverGUI; 
    } 
   
    public bool IsFingerHoverGUI3D() 
    { 
        if (mPlugin == null) 
        { 
            return false; 
        } 
        return mPlugin.IsFingerHoverGUI3D(); 
    } 
   
    public bool IsFingerHoverGUIWithout3D() 
    { 
        if (mPlugin == null) 
        { 
            return false; 
        } 
        return mPlugin.IsFingerHoverGUIWithout3D(); 
    } 
   
    public bool IsPrefab(GameObject ui_prefab) 
    { 
        return mPlugin.IsPrefab(ui_prefab); 
    } 
       
    ///  
    /// 初始化 继承与 Singleton 对象构建的时候被调用 
    ///  
    protected override void OnCreate() 
    { 
           
        mPlugin = PluginManager.Instance.Get(); 
        if (mPlugin != null) 
        { 
            mPlugin.SetEventHandler(this._HandlerUIEvent); 
        } 
        GameObject prefab = Resource.LoadUICommon("black_background"); 
        Looper.Assert(prefab != null , "默认黑底 black_background Prefab不存在 !!"); 
        if(prefab != null) 
        { 
            mBG = mPlugin.AddChild(prefab); 
            mBGPanel = mBG.GetComponent(); 
            mBG.transform.localScale = new Vector3(1, 1, 1); 
            mBG.transform.localPosition = new Vector3(mBG.transform.localPosition.x, mBG.transform.localPosition.y, Mathf.Clamp(mBG.transform.localPosition.z, -2f, 2f)); 
            if(mBG != null) 
            { 
                UISprite sprite = mBG.GetComponent(); 
                BoxCollider collider = mBG.GetComponent(); 
                if(sprite!= null) 
                { 
                    Vector2 size = mPlugin.GetSize(); 
                    sprite.SetDimensions((int)size.x, (int)size.y); 
                    collider.size = new Vector3(size.x, size.y, 0); 
                } 
            } 
               
            mBG.SetActive(false); 
        } 
        //EasyTouch.On_SimpleTap += On_SimpleTap; 
           
    } 
   
    public void InitUI(GameObject ui) 
    { 
        try 
        { 
            LayerUtils.SetLayer(ui.transform, (int)LayerUtils.ELayerIndex.ui); 
            ui.transform.parent = mPlugin.GetRoot().transform; 
               
            switch(ui.name) 
            { 
                default: 
                    ui.transform.localScale = new Vector3(1, 1, 1); 
                    ui.transform.localPosition = Vector3.zero; 
                    break; 
            } 
        } 
        catch (Exception e) 
        { 
            Looper.LogException(e); 
        } 
         
    } 
    ///  
    /// 创建UI 
    ///  
    ///  
    ///  
    ///  
    public T CreateUI(string name) where T: UI 
    { 
        UI  t = this.Get(name) as T; 
        if(t == null) 
        { 
            t = _CreateUI(name) as UI; 
           try 
           { 
               t.OnCreate(); 
           } 
           catch (Exception e) 
           { 
               Looper.LogException(e); 
           } 
              
           Put(name, t); 
        } 
        return t as T; 
    } 
    List mUIScene = new List(); 
    ///  
    /// 创建一个不加入管理队列的UI，主要用于世界地图上关卡界面的创建。 
    ///  
    ///  
    ///  
    ///  
    public T CreateUIWithoutManager(string name) where T : UI 
    { 
        T ui = _CreateUI(name); 
        try 
        { 
            ui.OnCreate(); 
        } 
        catch (Exception e) 
        { 
            Looper.LogException(e); 
        } 
        mUIScene.Add(ui); 
        return ui; 
    } 
       
    ///  
    /// 销毁不加入队列的UI 
    ///  
    ///  
    ///  
    public void CloseUIWithoutManager(T ui) where T : UI 
    { 
        try 
        { 
            ui.OnClose(); 
            ui.Dispose(); 
        } 
        catch (Exception e) 
        { 
            Looper.LogException(e); 
        } 
        mUIScene.Remove(ui); 
    } 
    ///  
    /// 显示UI 
    ///  
    ///  
    ///  
    public T ShowUI(string name) where T : UI 
    { 
        T t = CreateUI(name); 
        if(t != null) 
        { 
            t.Show(true); 
        } 
        return t; 
    } 
    ///  
    /// 显示UI 
    ///  
    ///  
    ///  
    public T HideUI(string name) where T : UI 
    { 
        T t = Get(name); 
        if (t != null) 
        { 
            t.Show(!true); 
   
        } 
        return t; 
    } 
   
    Stack mStack = new Stack(); 
   
    ///  
    /// 清除栈 
    ///  
    public void StackClean() 
    { 
        mStack.Clear(); 
    } 
    ///  
    /// UI隐藏压栈 
    ///  
    ///  
    ///  
    public UI Push(UI t) 
    { 
        if (t != null) 
        { 
            t.Show(false); 
            mStack.Push(t); 
        } 
        return t; 
    } 
    ///  
    /// UI隐藏压栈 
    ///  
    ///  
    ///  
    public T Push(string name) where T: UI 
    { 
        T t = Get(name); 
        if (t != null) 
        { 
            t.Show(false); 
            mStack.Push(t); 
        } 
        return t; 
    } 
    ///  
    /// UI显示出栈 
    ///  
    ///  
    ///  
    public UI Pop() 
    { 
        UI t = mStack.Pop(); 
        if (t != null) 
        { 
            t.Show(true); 
        } 
        return t; 
    } 
   
   
    ///  
    /// 销毁UI 
    ///  
    ///  
    public void Distroy(string name) 
    { 
        UI ui = Get(name); 
        if(ui != null) 
        { 
            ui.Dispose(); 
            Remove(name); 
        } 
    } 
   
    public void Distroy(string name) where T : UI 
    { 
        UI ui = Get(name); 
        if (ui != null) 
        { 
            ui.Dispose(); 
            Remove(name); 
        } 
    } 
    public void DestroyAll(bool includeScene= false) 
    { 
        StackClean(); 
        Clear(); 
        if(includeScene) 
        { 
            foreach (UI ui in mUIScene) 
            { 
                ui.Dispose(); 
            } 
            mUIScene.Clear(); 
        } 
   
    } 
    ///  
    /// 隐藏其他UI 
    ///  
    ///  
    public void HideOtherUI(string name) 
    { 
        foreach (UI ui in Values) 
        { 
            if (ui.Name.Equals(name)) 
                continue; 
            ui.Show(false); 
        } 
    } 
   
    UI _GetLastShowUI(bool showBG = false,UI except=null) 
    { 
        UI lastShowUI = null; 
        float lastShowTime = 0; 
        foreach (UI ui in Values) 
        { 
            if (ui == except) continue; 
            if (ui.IsShowing() && ui.LastShowTime > lastShowTime) 
            { 
                if (showBG) 
                { 
                    if (ui.IsShowBlackBG()) 
                    { 
                        lastShowUI = ui; 
                        lastShowTime = ui.LastShowTime; 
                    } 
                }else 
                { 
                    lastShowUI = ui; 
                    lastShowTime = ui.LastShowTime; 
                } 
            } 
        } 
        return lastShowUI; 
    } 
   
    ///  
    /// 隐藏最新显示的UI 
    ///  
    public void HideLastShow() 
    { 
        UI lastShowUI = _GetLastShowUI(); 
        if (lastShowUI != null) 
        { 
            lastShowUI.Show(false); 
        } 
    } 
    ///  
    /// 隐藏所有UI 
    ///  
    public void HideAllUI() 
    { 
        foreach(UI ui in Values) 
        { 
            if(ui != null)ui.Show(false); 
        } 
    } 
    ///  
    /// 获取UI跟面板 
    ///  
    ///  
    ///  
     GameObject _GetRootPanelExt(GameObject obj) 
    { 
        Transform parent = obj.transform.parent; 
        UIHolder uiHolder = null;// = root.GetComponent(); 
   
        while (parent != null) 
        { 
            if (parent.gameObject.GetComponent() != null) 
                break; 
   
            UIHolder tempPanel = parent.GetComponent(); 
            if (tempPanel != null) 
            { 
                uiHolder = tempPanel; 
            } 
            parent = parent.parent; 
        } 
        if (uiHolder == null) 
        { 
            return null; 
        } 
        return uiHolder.gameObject; 
    } 
    ///  
    /// NGUI事件处理器 
    ///  
    /// 事件名称 
    /// 发送事件的控件 
    /// 事件参数 
    private void _HandlerUIEvent(string eventName, GameObject sender, object arg) 
    { 
        try 
        { 
            if(sender == mBG) 
            { 
                //MainLooper.LogError("mBG, eventName:" + eventName + "!!"); 
                if (eventName.Equals("OnClick")) 
                { 
                      
                } 
                return; 
            } 
            GameObject root = _GetRootPanelExt(sender);//mPlugin.GetRootPanel(sender); 
            if (root == null) return; 
            UI ui = Get(root.name); 
            if(ui == null) 
            { 
                UIHolder uiHolder = root.GetComponent(); 
                if( uiHolder!= null) ui = uiHolder.ui; 
            } 
            if (ui == null) 
            { 
                Debug.LogWarning("UI:" + root.name + " not match prefab's name " + sender.name); 
                return; 
            } 
   
            if (eventName.Equals("OnClick")) 
            { 
                ui.OnClick(sender); 
            } 
            else if (eventName.Equals("OnPress")) 
            { 
                ui.OnPress(sender, (bool)arg); 
            } 
            else if (eventName.Equals("OnDrag")) 
            { 
                ui.OnDrag(sender, (Vector2)arg); 
            } 
            else if (eventName.Equals("OnDrop")) 
            { 
                ui.OnDrap(sender, (GameObject)arg); 
            } 
            else if (eventName.Equals("OnSelect")) 
            { 
                ui.OnSelect(sender, (bool)arg); 
            } 
            else if (eventName.Equals("OnHover")) 
            { 
                ui.OnHover(sender, (bool)arg); 
            } 
            else if (eventName.Equals("OnTooltip")) 
            { 
                ui.OnTooltip(sender, (bool)arg); 
            } 
            else if (eventName.Equals("OnDoubleClick")) 
            { 
                ui.OnDoubleClick(sender); 
            } 
        } 
        catch(Exception e) 
        { 
            Looper.LogException(e); 
        } 
   
    } 
} 

该类实现了UI的创建，也就是我们说的实例化操作，以及UI的显示，隐藏，动画等效果。在代码的最后使用了点击的回调函数避免

将脚本挂接到对象上。以上类的实现基本上把UI的大部分功能都实现出来了，可以直接拿过来使用。

如社区发表内容存在侵权行为，您可以点击这里查看侵权投诉指引

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