layabox 事件on的写法

class PushAdBtn extends ui.scene.pushAdBtnPanelUI

{

private img = [];

constructor()

{

super();

for(var i = 0; i < 4; i++)

{

this.img[i] = this.getChildByName("item"+i) as Laya.Image;

this.img[i].on(Laya.Event.CLICK, this, this.OnClick, [i]);//第四个传入的参数是个数组；

this.img[i].skin = "http://a.vigame.cn/xyx/lxgs_001.png"

this.img[i]["index"] = i;

}

}

OnClick(data)

{

console.log(data);//分别是0， 1 ，2 ，3；  

}

}