cc.director.preloadScene在手机监听进度上不起作用

Creator 2.x
#1

进度会直接到百分之百

#2

cc.loader.onProgress=(completedCount,totalCount,item)=>{
var perent=Math.abs(Math.floor((completedCount/totalCount).toFixed(2)100)/100);
this.bar_pro.progress=perent;
this.perent_lable.string=Math.floor(perent100)+’%’;
this.load_fillRange_sprite.fillRange=parseFloat(perent);
this.lightSpotNode.x=-700+Math.abs(this.load_fillRange_sprite.fillRange)*1400;
}
cc.director.preloadScene(game_name_n,()=>{
cc.loader.onProgress=function(){};
cc.director.loadScene(game_name_n);
},);