fillAlbumTweens() {
    const tweens = [];
    const aniNames = this.createAniNames();

    forEach(this.children, (sprite, index) => {
      const type = index < aniNames.length ? aniNames[index] : aniNames[0];
      const time = this.isCover(index) ? 0 : this.time;
      const delay = index * this.duration;

      const aniObj = Effects.getAnimation({ type, time, delay }, sprite);
      const parent = {
        display: sprite,
        offsetX: 0,
        offsetY: 0,
        id: `album_sub${index}`,
      };

      const tween = new FFAnimation({ ...aniObj, parent });
      tween.autoAlpha = true;
      tween.index = index;
      tween.on('complete', myTween => {
        const { index } = myTween;
        this.hidePrevChilds(index);
      });
      tweens.push(tween);

      if (!this.isCover(index)) sprite.alpha = 0;
    });

    return tweens;
  }
Fill the transition animation of each single picture
@private