版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。

Unity中要实现自己得Button需要编写继承自UnityEngine的Button类，然后再重写按钮按下，抬起，和离开的方法（OnPointerDown，OnPointerUp，OnPointerExit），记录时间差就行了，具体实现看代码：

一：长按按钮实现：

public class LongClickButton : Button {
    [Serializable]
    public class LongButtonEvent : UnityEvent { }
    [SerializeField]
    private LongButtonEvent _onLongButtonClick = new LongButtonEvent();
    public LongButtonEvent OnLongButtonClick
            return _onLongButtonClick;
            _onLongButtonClick = value;
    private DateTime m_FirstTime;
    private DateTime m_SecondTime;
    void ResetTime()
        m_FirstTime = default(DateTime);
        m_SecondTime = default(DateTime);
    void Press()
        if (OnLongButtonClick != null)
            OnLongButtonClick.Invoke();
            ResetTime();
    public override void OnPointerDown(PointerEventData eventData)
        base.OnPointerDown(eventData);
        if(m_FirstTime.Equals(default(DateTime)))
            m_FirstTime = DateTime.Now;
    public override void OnPointerUp(PointerEventData eventData)
        base.OnPointerUp(eventData);
        if(!m_FirstTime.Equals(default(DateTime)))
            m_SecondTime = DateTime.Now;
        if(!m_FirstTime.Equals(default(DateTime))&&!m_SecondTime.Equals(default(DateTime)))
            var intervalTime = m_SecondTime - m_FirstTime;
            float milliTime = intervalTime.Seconds * 1000 + intervalTime.Milliseconds;//毫秒
            if (milliTime > 600)
                Press();
                ResetTime();
    public override void OnPointerExit(PointerEventData eventData)
        base.OnPointerExit(eventData);
        ResetTime();
}

调用： longButton.OnLongButtonClick.AddListener(() => { Debug.Log("LongButtonClick"); });

二.双击按钮实现

public class DoubleClikeButton : Button
    [Serializable]
    public class DoubleClickEvent : UnityEvent { }
    [SerializeField]
    private DoubleClickEvent _onDoubleClick = new DoubleClickEvent();
    public DoubleClickEvent OnDoubleClick
            return _onDoubleClick;
            _onDoubleClick = value;
    private DateTime m_firstTime;
    private DateTime m_SecondTime;
    private void ResetTime()
        m_firstTime = default(DateTime);
        m_SecondTime = default(DateTime);
    private void Press()
        if (OnDoubleClick != null)
            OnDoubleClick.Invoke();
            ResetTime();
    public override void OnPointerDown(PointerEventData eventData)
        base.OnPointerDown(eventData);
        if (m_firstTime.Equals(default(DateTime)))
            m_firstTime = DateTime.Now;
            m_SecondTime = DateTime.Now;
    public override void OnPointerUp(PointerEventData eventData)
        base.OnPointerUp(eventData);
        if (!m_firstTime.Equals(default(DateTime)) && !m_SecondTime.Equals(default(DateTime)))
            var intervalTime = m_SecondTime - m_firstTime;
            float milliTime = intervalTime.Seconds * 1000 + intervalTime.Milliseconds;
            if (milliTime < 400)
                Press();
                ResetTime();