运动布局将约束属性添加到过渡

我有一个简单的动作布局，可以从一种布局更改为另一种布局。

I have a simple motion layout that changes from one layout to another.

<?xml version="1.0" encoding="utf-8"?>
<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:motion="http://schemas.android.com/apk/res-auto"
    xmlns:app="urn:oasis:names:tc:xliff:document:1.2">

    <Transition
        motion:constraintSetStart="@layout/activity_new"
        motion:constraintSetEnd="@layout/activity_new_ii"
        motion:duration="1000">
    </Transition>

</MotionScene>

在这里，我还想为布局动画制作动画，这是动态布局的直接子代。该文档显示了分别应用于视图的约束属性。就像在 atricle 中一样。如何将属性添加到布局之间的过渡。

Here I also want to animate a layouts aplha which is a direct child of the motionlayout. The docs show constraint attributes applied to views individually. like in this atricle. How does one add the attribute to the transition between the layouts.