我也碰到这个问题了。
Dialog.manager.popupEffectHandler = Handler.create(this,(e)=>{
var dialog:Dialog = <Dialog>e;
dialog.y = - dialog.height;
var yy:number = (Laya.stage.height - dialog.height)/2;
Laya.Tween.to(dialog,{y:yy},600,Laya.Ease.backOut);
},[],false);
this.gameHelpDialog = new view.GameHelpDialog();
