Tag:加入了一个延迟,在button按下状态一段时间后再開始 repeate

using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using System.Collections; public class RepeatPressEventTrigger : MonoBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler
{
public float interval = 0.1f; //回调触发间隔时间; public float delay = 1.0f;//延迟时间; public UnityEvent onLongPress = new UnityEvent(); private bool isPointDown = false;
private float lastInvokeTime; private float m_Delay = 0f; // Use this for initialization
void Start()
{
m_Delay = delay;
} // Update is called once per frame
void Update()
{
if (isPointDown)
{
if ((m_Delay -= Time.deltaTime) > 0f)
{
return;
} if (Time.time - lastInvokeTime > interval)
{
//触发点击;
onLongPress.Invoke();
lastInvokeTime = Time.time;
}
} } public void OnPointerDown(PointerEventData eventData)
{
isPointDown = true;
m_Delay = delay;
} public void OnPointerUp(PointerEventData eventData)
{
isPointDown = false;
m_Delay = delay;
} public void OnPointerExit(PointerEventData eventData)
{
isPointDown = false;
m_Delay = delay;
}
}

在商店中购买、在背包中出售、使用一种物品的情况下。须要对button进行长按处理,来高速添加或降低 物品个数。在Unity的 GUI中有一个RepeatButton能够用。在NGUI中有OnPressed 回调能够使用,可是在 UGUI 中的 Button 并没有这样的功能。就须要自己加入。

原理:

处理 Unity 的点击事件

IPointerDownHandler
IPointerUpHandler
IPointerExitHandler

在鼠标 按下的状态、松开、以及鼠标离开的状态来进行状态控制。

代码:

using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using System.Collections; public class RepeatPressEventTrigger :MonoBehaviour,IPointerDownHandler,IPointerUpHandler,IPointerExitHandler
{
public float interval=0.1f; [SerializeField]
UnityEvent m_OnLongpress=new UnityEvent(); private bool isPointDown=false;
private float lastInvokeTime; // Use this for initialization
void Start ()
{
} // Update is called once per frame
void Update ()
{
if(isPointDown)
{
if(Time.time-lastInvokeTime>interval)
{
//触发点击;
m_OnLongpress.Invoke();
lastInvokeTime=Time.time;
}
} } public void OnPointerDown (PointerEventData eventData)
{
m_OnLongpress.Invoke(); isPointDown = true; lastInvokeTime = Time.time;
} public void OnPointerUp (PointerEventData eventData)
{
isPointDown = false;
} public void OnPointerExit (PointerEventData eventData)
{
isPointDown = false;
}
}

用法:

把脚本挂在 Button 上面 (当然其他控件也能够) 。然后设置 长按的回调函数 以及 调用间隔。

UGUI  实现Button长按效果(RepeatButton)-LMLPHP

长按button。就会依照设定的间隔事件 。不停得调用 指定的 OnLongPress 函数。

样例下载:

http://download.csdn.net/detail/cp790621656/8794181
05-11 22:51