[LayaAirIDE 2.0]Laya Label text不显示

  public static showNativeGroup() {

       /*  if (this.nativeGroup) {

            return;

        } */

        var self = this;

        Laya.View.load(SdkUtil.sdkDomain + "sdkres/laya/native/NativeGroup.json", new Laya.Handler(this, function (group: Laya.View) {

           /*  if (this.nativeGroup) {

                return;

            } */

            self.nativeGroup = group;

            self.nigrop = new NativeGroup();

            self.nativeGroup.addComponentIntance(self.nigrop);

            self.nativeGroup.zOrder = 999998;

            Laya.stage.addChild(self.nativeGroup);

            self.nativeGroup.left = 0;

            self.nativeGroup.right = 0;

            self.nativeGroup.bottom = 0;

        }));

    }