Scroll 单个目标居中显示

enum TimeType
{
    Branch,//分
    Hour,//时
}

public delegate void SuccessForDay(List<int> _list);

public class ControlUnionBossTime
{
    public static ControlUnionBossTime _instance;

    public int Key;//星期几的key;

    private const int LABEL_COUNT = 44;
    private int[] mHourArray = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 };
    private int[] mBranchArray = { 0, 15, 30, 45 };
    private CLabel mHourLabel;
    private CLabel mBranch;
    private CButton mCloseBtn;
    private CButton mSureBtn;
    private UIScrollView mHourScroll;
    private UIScrollView mBranchScroll;
    private CPanel mpanel;
    private GameObject _obj;

    public event SuccessForDay Event_SuccessDay;

 //   private CButton mMask;

    private UIPanel mBranchPanel;
    private UIPanel mHourPanel;

    private float yLvVelocity = 0, yQualityVelocity = 0;
    private const float SMOOTHTIME = 0.01f;//平花时间

    private const int BRANCH_MIN = -88;
    private const int BRANCH_MAX = 44;

    private const int HOUR_MIN = -44;
    private const int HOUR_MAX = 968;

    private int mCurChooseBranch;
    private int mCurChooseHour;
    private float mScrollBranchChooseY;//分钟的目标值
    private float mScrollHourChooseY; //小时的目标值

    private bool isDragingBrach;
    private bool isDragingHour;


    public List<int> currentTime;

    StringBuilder str;

    public ControlUnionBossTime(CPanel cpanel)
    {
        if (_instance == null) _instance = this;
        mpanel = cpanel;
        _obj = mpanel.FindChild("Detail/right/Time");
        mCloseBtn = mpanel.GetElementBase("(Button)Uniontime_CloseButton") as CButton;
        mCloseBtn.Depth = 500;
        mSureBtn = mpanel.GetElementBase("(Button)Sure_btn") as CButton;
        //mMask = mpanel.GetElementBase("(Button)Bg") as CButton;
        //mMask.SetClickDelegate(Btn_click);
        mHourScroll = mCloseBtn.gameobject.transform.parent.Find("HourTimeScorview/Hour/hourView").GetComponent<UIScrollView>();
        mHourScroll.movement = UIScrollView.Movement.Vertical;
        mHourPanel = mHourScroll.transform.GetComponent<UIPanel>();
        mBranchScroll = mCloseBtn.gameobject.transform.parent.Find("BrankTimeScorvIew/Branch/branchView").GetComponent<UIScrollView>();
        mBranchPanel = mBranchScroll.transform.GetComponent<UIPanel>();
        mHourLabel = mpanel.GetElementBase("(Label)HourLabel") as CLabel;  
        mBranch = mpanel.GetElementBase("(Label)branchLabel") as CLabel;
        mHourLabel.Text = CreateBranchLabel(TimeType.Hour);
        mBranch.Text = CreateBranchLabel(TimeType.Branch);
        mCloseBtn.SetClickDelegate(Btn_click);
        mSureBtn.SetClickDelegate(Btn_click);


        mHourScroll.onDragFinished = OnScrollViewHourFinsh;
        mBranchScroll.onDragFinished = OnScrollViewBrachFinsh;
        GameObject brachDrag = mBranch.gameobject.GetComponent<UIDragScrollView>().gameObject;
        GameObject obj = mHourLabel.gameobject.transform.GetComponent<UIDragScrollView>().gameObject;
        UIEventListener.Get(obj).onDrag = OnHourScroll;
        UIEventListener.Get(brachDrag).onDrag = OnBrachScroll;
        IninPanel();
    }

    public void IninPanel()
    {
        if (currentTime == null)
            currentTime = new List<int>();
        else
            currentTime.Clear();
        currentTime.Add(1);
        currentTime.Add(30);
        isDragingBrach = true;
        isDragingHour = true;
        SetScrollViewPos(mBranchPanel, 0);//默认位置；
        SetScrollViewPos(mHourPanel, 0);
        CCommon.SetStaticLabel(mpanel, "(Label)Boss_Time_tip_title", 97110029);
        CCommon.SetStaticLabel(mpanel, "(Labelboss_local_time", 97110031);
        CCommon.SetStaticLabel(mpanel, "(Label)Sure_tip", 97110021);
    }
    public void Update()
    {
        if (!_obj.activeSelf)
            return;
        if (!isDragingBrach)
        {
            if (-mBranchScroll.panel.clipOffset.y != mScrollBranchChooseY)
            {
                float ytemp = Mathf.SmoothDamp(-mBranchScroll.panel.clipOffset.y, mScrollBranchChooseY,
                   ref yLvVelocity, SMOOTHTIME);
                if (Mathf.Abs(-mBranchScroll.panel.clipOffset.y - mScrollBranchChooseY) < 0.1f)
                {
                    ytemp = mScrollBranchChooseY;
                    isDragingBrach = true;
                }
                SetScrollViewPos(mBranchScroll.panel, ytemp);
            }
        }

        if (!isDragingHour)
        {
            if (-mHourScroll.panel.clipOffset.y != mScrollHourChooseY)
            {
                float ytemp = Mathf.SmoothDamp(-mHourScroll.panel.clipOffset.y, mScrollHourChooseY,
                   ref yQualityVelocity, SMOOTHTIME);
                if (Mathf.Abs(-mHourScroll.panel.clipOffset.y - mScrollHourChooseY) < 0.1f)
                {
                    ytemp = mScrollHourChooseY;
                    isDragingHour = true;
                }
                SetScrollViewPos(mHourScroll.panel, ytemp);
            }
        }
    }


     string CreateBranchLabel(TimeType type)
    {
        if (str == null) str = new StringBuilder();
        str.Remove(0, str.Length);
        if (type == TimeType.Branch)
        {
            for (int i = 0; i < mBranchArray.Length; i++)
            {
                str.Append(mBranchArray[i] + "分");
                if (i != (mBranchArray.Length - 1))
                {
                    str.Append("\n");
                }
            }
            return str.ToString();
        }
        else if (type == TimeType.Hour)
        {
            for (int i = 0; i < mBranchArray.Length; i++)
            {
                str.Append(mHourArray[i] + "点");
                if (i != (mHourArray.Length - 1))
                {
                    str.Append("\n");
                }
            }
            return str.ToString();
        }
        return "";
       
    }

    private void SetScrollViewPos(UIPanel panel,float y)
    {
        //设置当前的目标值
        //判断是否为40的倍数
        panel.transform.localPosition = new Vector3(panel.transform.localPosition.x, y, panel.transform.localPosition.z);
        panel.clipOffset = new Vector3(-panel.transform.localPosition.x, -y, -panel.transform.localPosition.z);
        SetCurrentBranch();
    }


    public float CheckScrollViewAimY(UIScrollView _scrollView, float scrollAimY)
    {
        float localnum = LABEL_COUNT / 2; //取半；
        float offset;
        float sym = scrollAimY >= 0 ? 1 : -1;
        offset = scrollAimY % LABEL_COUNT; //偏移量
        float determineY = scrollAimY - offset; //前半部分

        if (Mathf.Abs(offset) >= localnum)
        {
            offset = sym * LABEL_COUNT;
        }
        else
            offset = 0;

        float resultY = determineY + offset;

        if (_scrollView == mBranchScroll)
            resultY = Mathf.Clamp(resultY, BRANCH_MIN, BRANCH_MAX);
        else if (_scrollView == mHourScroll)
            resultY = Mathf.Clamp(resultY, HOUR_MIN, HOUR_MAX);

        return resultY;

    }


    public void OnBrachScroll(GameObject go, Vector2 v2)
    {
        isDragingBrach = true;
    }

    public void OnHourScroll(GameObject go, Vector2 v2)
    {
        isDragingHour = true;
    }

    public void OnScrollViewBrachFinsh()
    {
        mScrollBranchChooseY = CheckScrollViewAimY(mBranchScroll ,- mBranchScroll.panel.clipOffset.y);
        isDragingBrach = false;
       // Update();
    }

    public void OnScrollViewHourFinsh()
    {
        mScrollHourChooseY = CheckScrollViewAimY(mHourScroll, -mHourScroll.panel.clipOffset.y);
        isDragingHour = false;
    }

    public void Shwo()
    {
        _obj.SetActive(true);
    }

    public void Hide()
    {
        _obj.SetActive(false);
    }

    void Btn_click(CButton btn)
    {
        if(btn.Equals(mCloseBtn))
        {
            Hide();
        }
        if (btn.Equals(mSureBtn))
        {
            Event_SuccessDay.Invoke(currentTime);
            Hide();
        }

    
    }

    private void SetCurrentBranch()
    {
            int idx = ((int)mScrollBranchChooseY - BRANCH_MIN) / LABEL_COUNT;
            mCurChooseBranch = mBranchArray[idx];
            str.Remove(0, str.Length);
            for (int i = 0; i < mBranchArray.Length; i++)
            {
                if (i == idx)
                {
                    str.Append("[44ca1a]" + mCurChooseBranch + "分[-]\n");
                    currentTime[1] = mBranchArray[i];
            }
                else
                    str.Append(mBranchArray[i] + "分\n");
            }
            mBranch.Text = str.ToString();
            idx = ((int)mScrollHourChooseY - HOUR_MIN) / LABEL_COUNT;
            mCurChooseHour = mHourArray[idx];
            str.Remove(0, str.Length);
            for (int i = 0; i <mHourArray.Length; i++)
            {
            if (i == idx)
            {
                str.Append("[44ca1a]" + mCurChooseHour + "点[-]\n");
                currentTime[0] = mHourArray[i];
            }
            else
                str.Append(mHourArray[i] + "点\n");
            }
        
            mHourLabel.Text = str.ToString();
        
    }



}