cc.scrollView基础用法

var testLayer = cc.Layer.extend({    ctor : function(){        this._super();        this.init();        return true;    },    init : function(){        var csv = new cc.ScrollView();        csv.setDirection(cc.SCROLLVIEW_DIRECTION_HORIZONTAL);        csv.setTouchEnabled(true);        csv.setBounceable(true);        csv.setViewSize(cc.size(500, 400));        csv.setAnchorPoint(cc.p(0, 0));        csv.x = 0;        csv.y = 0;        this.addChild(csv);        csv.setContentSize(cc.size(500, 400));        var layer = new cc.LayerColor();        layer.setColor(cc.color(0, 255, 255));        csv.setContainer(layer)        for(var i = 0; i < 8; i++){            var widthList = new cc.LayerColor();            widthList.attr({                x      : i * 100 + (i + 1) * 20,                y      : 0,                width  : 100,                height : 500,                color  : colorList[i]            });            csv.addChild(widthList);        }        var childWidth = 0;        for(var i = 0; i < csv.getContainer().children.length; i++){            childWidth += csv.getContainer().children[i].width + 20;        }        cc.log("【打印】childWidth：",childWidth,csv.children.length);        csv.setContentSize(cc.size(childWidth, 400));        cc.log("【scrollView】打印：", csv.getContentSize().width, csv.getContentSize().height);    }});