Xamarin.AndroidX.ConstraintLayout
Xamarin.Android.Support.Constraint.Layout
Xamarin.AndroidX.ConstraintLayout.Solver
Xamarin.AndroidX.DataBinding.ViewBinding
Xamarin.AndroidX.Legacy.Support.Core.UI
Xamarin.AndroidX.Lifecycle.LiveData

![在这里插入图片描述](https://img-blog.csdnimg.cn/direct/fcfbc7e68669473284a2d61c39ec9908.png

Xamarin.Android.Support.Constraint.Layout

Xamarin.AndroidX.Legacy.Support.Core.UI

Xamarin.AndroidX.ConstraintLayout.Solver
Xamarin.AndroidX.Lifecycle.LiveData
Xamarin.AndroidX.DataBinding.ViewBinding

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android=“http://schemas.android.com/apk/res/android”
xmlns:app=“http://schemas.android.com/apk/res-auto”
xmlns:tools=“http://schemas.android.com/tools”
android:layout_width=“match_parent”
android:layout_height=“match_parent”>


</androidx.constraintlayout.widget.ConstraintLayout>

https://www.c-sharpcorner.com/article/how-to-use-constraint-layout-in-xamarin-android/