毋需多言
我就废话不多说了，大家还是直接看代码吧~
using unityengine;
using unityengine.eventsystems;
namespace mx.ui
{
public class eventtriggerlistener :unityengine.eventsystems.eventtrigger
{
public delegate void voiddelegate(gameobject go);
public voiddelegate onclick;
public voiddelegate ondown;
public voiddelegate onenter;
public voiddelegate onexit;
public voiddelegate onup;
public voiddelegate onselect;
public voiddelegate onupdateselect;
/// <summary>
/// 得到“监听器”组件
/// </summary>
/// <param name="go">监听的游戏对象</param>
/// <returns>
/// 监听器
/// </returns>
public static eventtriggerlistener get(gameobject go)
{
eventtriggerlistener lister = go.getcomponent<eventtriggerlistener>();
if (lister==null)
{
lister = go.addcomponent<eventtriggerlistener>();
}
return lister;
}
public override void onpointerclick(pointereventdata eventdata)
{
if (onclick != null)
{
onclick(gameobject);
}
}
public override void onpointerdown(pointereventdata eventdata)
{
if (ondown != null)
{
ondown(gameobject);
}
}
public override void onpointerenter(pointereventdata eventdata)
{
if (onenter != null)
{
onenter(gameobject);
}
}
public override void onpointerexit(pointereventdata eventdata)
{
if (onexit != null)
{
onexit(gameobject);
}
}
public override void onpointerup(pointereventdata eventdata)
{
if (onup != null)
{
onup(gameobject);
}
}
public override void onselect(baseeventdata eventbasedata)
{
if (onselect != null)
{
onselect(gameobject);
}
}
public override void onupdateselected(baseeventdata eventbasedata)
{
if (onupdateselect != null)
{
onupdateselect(gameobject);
}
}
}//class_end
}
补充：unity学习笔记——自定义eventtriggerlistener事件
通常我们在unity给按钮或者图片添加eventetrigger事件都需要手动添加组件，或者通过代码继承系统提供接口实现功能。这样使用起来比较麻烦，所以我参考网上资料总结写了一个自定义的eventtriggerlistener类，专门用于添加事件。
eventtriggerlistener类，不需要挂载到物体上，继承eventtrigger,作为common类直接使用
using unityengine;
using unityengine.eventsystems;
public class eventtriggerlistener : eventtrigger
{
public delegate void voiddelegate(gameobject obj);
public voiddelegate onbtndown;
public voiddelegate onbtnup;
public voiddelegate onenter;
public voiddelegate onexit;
public voiddelegate onstay;
public voiddelegate onclick;
public voiddelegate ondoubleclick;
private float t1, t2;
private bool isenter = false;
public void update()
{
if (isenter)
{
if (onstay != null)
{
onstay(gameobject);
}
}
}
public static eventtriggerlistener get(gameobject obj)
{
eventtriggerlistener eventtriggerlistener = obj.getcomponent<eventtriggerlistener>();
if (eventtriggerlistener == null)
{
eventtriggerlistener = obj.addcomponent<eventtriggerlistener>();
}
return eventtriggerlistener;
}
/// <summary>
/// 判断是否是第二次点击
/// </summary>
private bool istwo = true;
private bool isover = true;
public override void onpointerdown(pointereventdata eventdata)
{
if (onbtndown != null)
{
onbtndown(gameobject);
}
istwo = !istwo;
if (!isover)
{
return;
}
isover = false;
invoke("selectclick", 0.3f);
}
public void selectclick()
{
if (istwo)
{
if (ondoubleclick!=null)
{
ondoubleclick(gameobject);
}
}
else
{
if (onclick!=null)
{
onclick(gameobject);
}
}
istwo = true;
isover = true;
}
public override void onpointerup(pointereventdata eventdata)
{
if (onbtnup != null)
{
onbtnup(gameobject);
}
}
public override void onpointerenter(pointereventdata eventdata)
{
if (onenter != null)
{
onenter(gameobject);
}
isenter = true;
}
public override void onpointerexit(pointereventdata eventdata)
{
if (onexit != null)
{
onexit(gameobject);
}
isenter = false;
}
}
以上是最常见的几种事件，全部事件可以查看eventtrigger类。
使用方法：新建脚本btnevent，继承monobehaviour挂载到场景物体中，在start()周期函数中给需要添加事件的物体添加事件（我这里直接挂载到需要注册事件的按钮上）其中gameobject是需要添加的物体gameobject
using unityengine;
public class btnevent : monobehaviour {
void start () {
eventtriggerlistener.get(transform.gameobject).onclick += (gameobj) => { debug.log("onclick"); };
eventtriggerlistener.get(transform.gameobject).onbtndown += (gameobj) => { debug.log("onbtndown"); };
eventtriggerlistener.get(transform.gameobject).onbtnup += (gameobj) => { debug.log("onbtnup"); };
eventtriggerlistener.get(transform.gameobject).onenter += (gameobj) => { debug.log("onenter"); };
eventtriggerlistener.get(transform.gameobject).onexit += (gameobj) => { debug.log("onexit"); };
eventtriggerlistener.get(transform.gameobject).ondoubleclick += (gameobj) => { debug.log("ondoubleclick"); };
eventtriggerlistener.get(transform.gameobject).onstay += (gameobj) => { debug.log("onstay"); };
}
}
运行结果：
ps：单击和双击事件的同时监听会有冲突,所以通过invoke()检测300ms内点击次数，每次按钮按下的时候检测。
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。
