Unity UI案例（长按按钮和双击按钮案例
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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
{
get
{
return _onLongButtonClick;
}
set
{
_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();
else
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();
}
else
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
{
get
{
return _onDoubleClick;
}
set
{
_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();
else
ResetTime();
}
public override void OnPointerDown(PointerEventData eventData)
{
base.OnPointerDown(eventData);
if (m_firstTime.Equals(default(DateTime)))
m_firstTime = DateTime.Now;
else
{
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();
}
else
ResetTime();
}
}
public override void OnPointerExit(PointerEventData eventData)
{
base.OnPointerExit(eventData);
ResetTime();
}
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原始发表：2017-12-08 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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