android - ConstraintLayout 设置约束优先级？

Question

我正在尝试使用 ConstraintLayout 在 Android 中实现以下布局.



但是，两个用户名 TextViews需要扩展直到达到最大宽度，这取决于每部手机的屏幕。

第一个用户名应该尽可能可见，它应该有 8dp 的边距，然后是具有固定宽度的“回复箭头”，然后，如果合适，尽可能多的“回复用户名”TextView应该是可见的。
点分隔符、日期和喜欢 TexViews awlays 应该可见，在 wrap_content .

在 iOS 中，我们已经设法通过使用内容拥抱和内容压缩阻力优先级来实现这样的布局。 Android中是否有类似的功能？

这是我的 XML 布局供引用:

<?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:id="@+id/newspaperLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

<View
    android:id="@+id/commentDepthView"
    android:layout_width="2dp"
    android:layout_height="0dp"
    android:layout_marginStart="@dimen/default_margin"
    android:background="@color/blueDark"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    />

<TextView
    android:id="@+id/commentAuthorTextView"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginTop="@dimen/default_margin"
    android:ellipsize="end"
    android:lines="1"
    android:textColor="@color/blue"
    android:textStyle="bold"
    app:layout_constraintBottom_toTopOf="@id/commentTextView"
    app:layout_constraintEnd_toStartOf="@id/replyToArrowImageView"
    app:layout_constraintHorizontal_chainStyle="packed"
    app:layout_constraintStart_toEndOf="@+id/commentDepthView"
    app:layout_constraintTop_toTopOf="parent"
    tools:text="Username"/>

<ImageView
    android:id="@+id/replyToArrowImageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginEnd="8dp"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@id/commentAuthorTextView"
    app:layout_constraintEnd_toStartOf="@id/commentReplyToTextView"
    app:layout_constraintHorizontal_bias="0.5"
    app:layout_constraintStart_toEndOf="@+id/commentAuthorTextView"
    app:layout_constraintTop_toTopOf="@id/commentAuthorTextView"
    app:srcCompat="@drawable/reply_to_arrow"/>

<TextView
    android:id="@+id/commentReplyToTextView"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:ellipsize="end"
    android:lines="1"
    android:textColor="@color/blue"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@+id/commentAuthorTextView"
    app:layout_constraintEnd_toStartOf="@+id/dotSeparatorTextView"
    app:layout_constraintHorizontal_bias="0.0"
    app:layout_constraintHorizontal_chainStyle="packed"
    app:layout_constraintStart_toEndOf="@id/replyToArrowImageView"
    app:layout_constraintTop_toTopOf="@id/commentAuthorTextView"
    tools:text="Reply To Username"
    />

<TextView
    android:id="@+id/dotSeparatorTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginEnd="8dp"
    android:text="@string/dot_separator"
    android:textStyle="bold"
    app:layout_constraintBottom_toBottomOf="@id/commentAuthorTextView"
    app:layout_constraintEnd_toStartOf="@+id/commentDateTextView"
    app:layout_constraintHorizontal_bias="0.5"
    app:layout_constraintStart_toEndOf="@+id/commentReplyToTextView"
    app:layout_constraintTop_toTopOf="@id/commentAuthorTextView"/>

<TextView
    android:id="@+id/commentDateTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginEnd="@dimen/default_margin"
    app:layout_constraintBottom_toBottomOf="@+id/commentAuthorTextView"
    app:layout_constraintEnd_toStartOf="@id/commentLikesTextView"
    app:layout_constraintStart_toEndOf="@id/dotSeparatorTextView"
    app:layout_constraintTop_toTopOf="@+id/commentAuthorTextView"
    tools:text="1/1/1970"/>

<TextView
    android:id="@+id/commentLikesTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginEnd="@dimen/default_margin"
    app:layout_constraintBottom_toBottomOf="@+id/commentAuthorTextView"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@id/commentDateTextView"
    app:layout_constraintTop_toTopOf="@+id/commentAuthorTextView"
    tools:text="0 Likes"/>


<TextView
    android:id="@+id/commentTextView"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginTop="@dimen/default_margin"
    android:layout_marginEnd="@dimen/default_margin"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@id/commentDepthView"
    app:layout_constraintTop_toBottomOf="@+id/commentAuthorTextView"
    tools:text="This is test comment that is really relly long. Well not that long, but it's long enough, don't you think?"/>

<View
    android:id="@+id/separatorView"
    android:layout_width="0dp"
    android:layout_height="0.5dp"
    android:layout_marginStart="@dimen/default_margin"
    android:layout_marginTop="@dimen/default_margin"
    android:layout_marginEnd="@dimen/default_margin"
    android:background="@color/grey"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toEndOf="@id/commentDepthView"
    app:layout_constraintTop_toBottomOf="@+id/commentTextView"/>

</androidx.constraintlayout.widget.ConstraintLayout>

欢迎提出任何建议，即使使用与 ConstraintLayout 不同的布局.非常感谢。

Answer 1

给出第一个用户名

android:layout_width="0dp" 
app:layout_constraintHorizontal_bias="0"
app:layout_constraintWidth_default="wrap"

并排在第二位
android:layout_width="0dp"

rest 是 wrap_content 并链接它们