UI简单框架的搭建

做成Prefab的UI面板


UI简单框架的搭建_第1张图片
Paste_Image.png

[
{"panelTypeString":"ItemMessage",
"path":"UIPanel/ItemMessagePanel"},

{"panelTypeString":"Knapsack",
"path":"UIPanel/KnapsackPanel"},

{"panelTypeString":"MainMenu",
"path":"UIPanel/MainMenuPanel"},

{"panelTypeString":"Shop",
"path":"UIPanel/ShopPanel"},

{"panelTypeString":"Skill",
"path":"UIPanel/SkillPanel"},

{"panelTypeString":"System",
"path":"UIPanel/SystemPanel"},

{"panelTypeString":"Task",
"path":"UIPanel/TaskPanel"}

]

public class UIPanelInfo
{
    public  string  PanelTypeString { get; set; }
    public  string Path { get; set; }

   public UIPanelInfo(string  panelTypeString,string path)
    {
        this.PanelTypeString = panelTypeString;
        this.Path=path;

        }
}
public class UIManager

{
    #region 单例模式
    private static UIManager _instance;
    public static UIManager Instance{
        get {
            if (_instance==null)
            {

                _instance = new UIManager();
            }
            return _instance;
        }
        
        }
    #endregion

    private Transform canvasTransform ;
    private Transform CanvasTransform {
     get
        {
            if (canvasTransform == null)
            {
                canvasTransform = GameObject.Find("Canvas").transform;
            } 
            return canvasTransform;
        }
        
    }

    private Dictionary panelPathDict;
    private Dictionary PanelDict;//保存所有实例化面板的游戏物体身上的BasePanel组件
    private Stack panelStack;

    private UIManager() {

        ParseUipanelTypeJson();
    }

    /// 
    /// 根据面板类型,得到实例化的面板
    /// 
    /// 
    private  BasePanel GetPanel (string panelType){
        if (PanelDict==null) {
            PanelDict = new Dictionary();
        }
        //BasePanel panel;
        //PanelDict.TryGetValue(panelType, out panel);

        BasePanel panel = PanelDict.TryGet(panelType);
        if (panel == null)
        {
            //如果找不到,就表示这个面板没有实例化过,那么就去找到这个面板的Prefab的路径,然后去根据Prefab去实例化面板
            //string path;
            //panelPathDict.TryGetValue(panelType, out path);

            string path = panelPathDict.TryGet(panelType);

            GameObject instPane = GameObject.Instantiate(Resources.Load(path)) as GameObject;
            instPane.transform.SetParent(CanvasTransform,false);
            PanelDict.Add(panelType, instPane.GetComponent());
            return instPane.GetComponent();
        }
        else {
            return panel;
        }
    }

    /// 
    /// 入栈  把某个页面入栈 
    /// 
    public void PushPanel(string paneltype) {
        if (panelStack==null) {
            panelStack = new Stack();
        }
    
        //判断一下栈里面是否有页面
        if (panelStack.Count>0) {
            BasePanel topPanel = panelStack.Peek();//取出栈顶元素
            topPanel.Onpause();
        }

        BasePanel panel = GetPanel(paneltype);
        panel.OnEnter();

        panelStack.Push(panel);
       
    }

    /// 
    /// 出栈 把某个页面出栈
    /// 
    public void PopPanel() {

        if (panelStack==null) {
            panelStack = new Stack();
        }
       
        if (panelStack.Count <= 0) return;
        //关闭栈顶页面的显示
        BasePanel toppanel = panelStack.Pop();
        toppanel.OnExit();
       
        if (panelStack.Count <= 0) return;
        BasePanel topPane2 = panelStack.Peek();
        topPane2.OnResume();
      
    }
    /// 
    /// 解析Json数据
    /// 
    private void ParseUipanelTypeJson() {

        panelPathDict = new Dictionary< string,string>();

        JsonData data = JsonMapper.ToObject(File.ReadAllText("Assets/Script/UIFramework/Resources/UIPanelType.txt"));

        UIPanelInfo info;
        foreach (JsonData temp in data)
        {
            string panelTypeString = temp["panelTypeString"].ToString();
            string Path = temp["path"].ToString();
            info = new UIPanelInfo(panelTypeString, Path);
            panelPathDict.Add(info.PanelTypeString, info.Path);
        }
    }

}

/// 
/// 对Dictory的扩展
/// 
public static class DictionaryExtension  {

    /// 
    /// 尝试根据key得到value,得到了的话直接返回value,没有得到直接返回null
    /// this Dictionary dict 这个字典表示我们要获取值的字典
    /// 
    public static Tvalue TryGet(this Dictionary dict, Tkey key)
    {
        Tvalue value;
        dict.TryGetValue(key, out value);
        return value;
    }
public class BasePanel : MonoBehaviour {
    /// 
    /// 界面被显示出来
    /// 
    public virtual void OnEnter()
    {

    }

    /// 
    /// 界面暂停
    /// 
    public virtual void OnPause()
    {

    }

    /// 
    /// 界面继续
    /// 
    public virtual void OnResume()
    {

    }

    /// 
    /// 界面不显示,退出这个界面,界面被关系
    /// 
    public virtual void OnExit()
    {

    }
}
public class GameRoot : MonoBehaviour {

    private void Start()
    {
        UIManager.Instance.PushPanel("MainMenu");
    }
}
using DG.Tweening;

public class TaskPanel : BasePanel {
    private CanvasGroup canvasGrop;
    

    private void Start()
    {
        if (canvasGrop == null)
        { canvasGrop = GetComponent(); }
    }
    public override void OnEnter()
    {
        if (canvasGrop == null) { canvasGrop = GetComponent(); }
        canvasGrop.alpha = 0;
        canvasGrop.blocksRaycasts = true;

        canvasGrop.DOFade(1,.5f);
    }

    //处理页面的关闭
    public override void OnExit()
    {
        //canvasGrop.alpha = 0;
        canvasGrop.blocksRaycasts = false;

        canvasGrop.DOFade(0,.5f);
    }
    public void OnClosePanel() {
        UIManager.Instance.PopPanel();
    }
}

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