Unity模仿TougleGroup编写Button Group

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最近制作一个VR的DEMO

UGUI 的Button需要加高亮，为了避免两个Button同时高亮，所有写了一个类似于Tougle Group的东西

==ButtonGroup============

public delegate void HighLightOffHandle(GameObject sender);public class ButtonGroup : MonoBehaviour {    public event HighLightOffHandle HighLightOffEvent;    public void Notify(GameObject sender)    {        if (HighLightOffEvent != null)        {            HighLightOffEvent(sender);        }    }}

==ButtonSingle=============

public class ButtonSingle : MonoBehaviour {    public ButtonGroup buttonGroup;    private bool m_IsOn;    private void Awake()    {        m_IsOn = false;    }    private void OnEnable()    {        //将按钮注册进按钮组        if (buttonGroup == null)            return;        buttonGroup.HighLightOffEvent += new HighLightOffHandle(HighLightOff);    }    private void OnDisable()    {        //将按钮移出按钮组        if (buttonGroup == null)            return;        buttonGroup.HighLightOffEvent -= new HighLightOffHandle(HighLightOff);    }    //set方法用于设置是否高亮，并发送事件    public void Set(bool value)    {        if (m_IsOn == value)            return;        m_IsOn = value;        if (buttonGroup != null)        {            if (m_IsOn)            {                buttonGroup.Notify(gameObject);            }        }        ChangeHighlight(true, Color.yellow);        Debug.Log("lezi");    }    private void HighLightOff(GameObject sender)    {        m_IsOn = false;        ChangeHighlight(false, Color.yellow);    }    public void ChangeHighlight(bool isHighlight,Color highlightColor)    {        Highlighter highlighter;        if (GetComponent<Highlighter>())            highlighter = GetComponent<Highlighter>();        else            highlighter = gameObject.AddComponent<Highlighter>();        if (isHighlight)            highlighter.ConstantOnImmediate(highlightColor);        else            highlighter.ConstantOffImmediate();    }}

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