颤动：iOS风格导航/过渡

Question

在Flutter中模拟iOS风格导航的最接近的方式是什么，更具体地说，使用Over Full Screen演示和Cross Dissolve过渡的Present Modally类型？我试着查看他们的文档和构造函数页面，但它没有任何帮助。

CODE：

rand_num = 2
guess_num = 3
rand_num = 4


if rand_num < 3:
    pass
elif (rand_num - 10) <= guess_num <= rand_num or rand_num <= guess_num <= (rand_num + 10):
    print('working')
else:
    print('not working')

# prints working

但是他没有做任何事。我甚至试过

          IconButton(
            icon: Icon(Icons.filter_list),
            onPressed: () {
              AnimationController controller = new AnimationController(duration: const Duration(milliseconds: 200), vsync: this);
              Animation<double> animation = new Tween(begin: 0.1, end: 1.0).animate(controller);

              CupertinoFullscreenDialogTransition(
                animation: animation,
                child: Container(color: Colors.blue, width: 100.0, height: 100.0,),
              );
            },
          ),

并没有做任何事情。