createAnimate method

void createAnimate()

Implementation

void createAnimate() {
  // 内容动画
  top = Tween<double>(begin: _boxHeight, end: 0)
      .animate(CurvedAnimation(parent: _controller, curve: Curves.decelerate))
    ..addStatusListener(animateEnd);

  // 遮罩层透明动画
  opacity = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(parent: _controller, curve: Curves.decelerate));
}