Android 协调者布局 DimensionRatio

按照布局大小比例分割图案

代码

<?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"
    tools:context=".MainActivity">


    <TextView
        android:id="@+id/target"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@android:color/holo_green_dark"
        android:orientation="horizontal"
        android:text="A"
        app:layout_constraintDimensionRatio="16:9"
        app:layout_constraintStart_toStartOf="parent"
        app:lay