居中左对齐到最长的 TextView TextViews 在带有换行内容的 LinearLayout 中不起作用
Centering left-aligned-to-longest-TextView TextViews not working in LinearLayout with wrap content
我想创建一个多行文本长度不同的布局。所有的文本都居中。居中最长文本的起点将作为基础。然后，其他较短的文本将不再居中，而是向左对齐到最长文本的起点。
为了在 ConstraintLayout 中实现这一点，我创建了一个居中且宽度为 wrap_content 的 LinearLayout。然后，在 LinearLayout 中，我有多个宽度为 wrap_content 的 TextView。我希望 LinearLayout 自行扩展（宽度），直到 ConstraintLayout 的宽度（具有设备的宽度），以确保其子项 TextViews 不会换行 unless 文本比屏幕宽度长（在我的特殊情况下，这是不可能的）。 Android Studio 编辑器的预览显示，这与我预期的一样。但是，在我的设备上使用 运行 并在 Android Studio 上使用 Tools > Layout Inspector 时，LinearLayout 不会在宽度上扩展自身，即使还有很多 space 剩余。
这是我的 XML 布局代码。
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
<variable
name="user"
type="com.mobile.githubuser.model.GithubUser" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/act_details_toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/toolbar_height"
android:background="?attr/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="@string/act_user_details_toolbar_title"
app:titleTextAppearance="@style/TextAppearance.Toolbar" />
<com.google.android.material.imageview.ShapeableImageView
android:id="@+id/shapeableImageView"
style="@style/Widget.GithubUser.ShapeableImageView.Circular"
android:layout_width="@dimen/user_details_avatar_size"
android:layout_height="@dimen/user_details_avatar_size"
android:layout_marginTop="@dimen/keyline_5"
android:src="@{user.avatar}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/act_details_toolbar" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_4"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{user.name}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceHeadline2"
android:textColor="?attr/colorOnBackground"
app:layout_constraintTop_toBottomOf="@+id/shapeableImageView"
tools:layout_editor_absoluteX="16dp"
tools:text="April Ludgate" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_2"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{`@` + user.username}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceSubtitle2"
android:textColor="?attr/colorOnBackground"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView"
tools:text="\@april_ludgate" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_5"
android:layout_marginEnd="@dimen/keyline_4"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableStart="@drawable/drawable_company"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Company\t\t: ` + user.company}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2"
tools:text="\Company\t\t: Google, Inc." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_location"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Location\t\t\t: ` + user.location}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView3"
tools:text="Location\t\t\t: Pittsburgh, PA, USA" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_repository"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Repository\t: ` + user.repository}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView4"
tools:text="Repository\t: 2" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_follower"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Followers\t\t: `}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
addNumberToText="@{user.followers}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView5"
tools:text="Followers\t\t: 1029" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_following"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Following\t\t: `}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
addNumberToText="@{user.following}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView6"
tools:text="Following\t\t: 101" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
这是我的编辑器预览显示的内容（我想要的）。
这是显示问题的工具检查器。
正如您在第二张图片中看到的，当 LinearLayout 有 space（左右）时，TextView 换行为两行。我希望 LinearLayout 尽可能多地使用 space，但尽可能少的 space 仍能在一行中显示所有 TextView。使用 android:maxLines=1 和 android:singleLine=true 分别导致文本被截断和省略；我不想要这个。是什么导致了这个问题？如果不可能以这种方式实现我想要的，我如何实现我所描述的（不使用固定值，例如边距和准则来对齐 TextViews）？
与问题无关：为什么我的 MaterialTextView 在我的 Android Studio eidtor 预览中不能正确显示？
如 中所述，制表符 (\t) 导致布局出现问题。只需擦除制表符并用几个 space 替换它们即可。但是，由于我使用的字体不是 monospaced，因此冒号部分没有完全对齐。
另一种解决方案是将每行一个 TextView 分成两个 TextView。这也对我有利，因为现在，我可以提供多种语言的字符串文字（例如 Company、Location 等）并添加动态生成的内容（来自数据绑定 user) 到整体显示的文本。然后，在所有分离之后，将 TextView 放在一个 ConstraintLayout 中，替换 原来的 LinearLayout。现在，我们的结构如下（有问题的部分）。
ConstraintLayout
|__ TextView (first part for row 1)
|__ TextView (second part for row 1)
|__ ...
|__ TextView (first part for row n)
|__ TextView (second part for row n)
然后，创建一个障碍，方向 end 引用每行的所有第一部分。将每一行的所有第二部分相对于屏障定位，并添加一些 marginStart 以在第一部分和第二部分之间创建 space。第二部分包含冒号和动态生成的内容。
这是最后的XML。
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
<variable
name="user"
type="com.mobile.githubuser.model.GithubUser" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/act_details_toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/toolbar_height"
android:background="?attr/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="@string/act_user_details_toolbar_title"
app:titleTextAppearance="@style/TextAppearance.Toolbar" />
<com.google.android.material.imageview.ShapeableImageView
android:id="@+id/shapeableImageView"
style="@style/Widget.GithubUser.ShapeableImageView.Circular"
android:layout_width="@dimen/user_details_avatar_size"
android:layout_height="@dimen/user_details_avatar_size"
android:layout_marginTop="@dimen/keyline_5"
android:src="@{user.avatar}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/act_details_toolbar" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_4"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{user.name}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceHeadline2"
android:textColor="?attr/colorOnBackground"
app:layout_constraintTop_toBottomOf="@+id/shapeableImageView"
tools:layout_editor_absoluteX="16dp"
tools:text="April Ludgate" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_2"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{`@` + user.username}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceSubtitle2"
android:textColor="?attr/colorOnBackground"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView"
tools:text="\@april_ludgate" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_5"
android:layout_marginEnd="@dimen/keyline_4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableStart="@drawable/drawable_company"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/company_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_location"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/location_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView3" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_repository"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/repository_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView4" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_follower"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/followers_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView5" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_following"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/following_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView6" />
<androidx.constraintlayout.widget.Barrier
android:id="@+id/barrier2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:barrierDirection="right"
app:constraint_referenced_ids="materialTextView3,materialTextView4,materialTextView5,materialTextView6,materialTextView7"/>
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:text="@{`: ` + user.company}"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView3"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView3"
tools:text=": Google, Inc." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:text="@{`: ` + user.location}"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView4"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView4"
tools:text=": Pittsburgh, PA, U.S.A." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView10"
formatNumberToTextWithColon="@{user.repository}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView5"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView5"
tools:text=": 1,234" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView11"
formatNumberToTextWithColon="@{user.followers}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:layout_marginBottom="2dp"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView6"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView6"
tools:text=": 304" />
<com.google.android.material.textview.MaterialTextView
formatNumberToTextWithColon="@{user.following}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView7"
tools:text=": 1" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
我想创建一个多行文本长度不同的布局。所有的文本都居中。居中最长文本的起点将作为基础。然后，其他较短的文本将不再居中，而是向左对齐到最长文本的起点。
为了在 ConstraintLayout 中实现这一点，我创建了一个居中且宽度为 wrap_content 的 LinearLayout。然后，在 LinearLayout 中，我有多个宽度为 wrap_content 的 TextView。我希望 LinearLayout 自行扩展（宽度），直到 ConstraintLayout 的宽度（具有设备的宽度），以确保其子项 TextViews 不会换行 unless 文本比屏幕宽度长（在我的特殊情况下，这是不可能的）。 Android Studio 编辑器的预览显示，这与我预期的一样。但是，在我的设备上使用 运行 并在 Android Studio 上使用 Tools > Layout Inspector 时，LinearLayout 不会在宽度上扩展自身，即使还有很多 space 剩余。
这是我的 XML 布局代码。
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
<variable
name="user"
type="com.mobile.githubuser.model.GithubUser" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/act_details_toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/toolbar_height"
android:background="?attr/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="@string/act_user_details_toolbar_title"
app:titleTextAppearance="@style/TextAppearance.Toolbar" />
<com.google.android.material.imageview.ShapeableImageView
android:id="@+id/shapeableImageView"
style="@style/Widget.GithubUser.ShapeableImageView.Circular"
android:layout_width="@dimen/user_details_avatar_size"
android:layout_height="@dimen/user_details_avatar_size"
android:layout_marginTop="@dimen/keyline_5"
android:src="@{user.avatar}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/act_details_toolbar" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_4"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{user.name}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceHeadline2"
android:textColor="?attr/colorOnBackground"
app:layout_constraintTop_toBottomOf="@+id/shapeableImageView"
tools:layout_editor_absoluteX="16dp"
tools:text="April Ludgate" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_2"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{`@` + user.username}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceSubtitle2"
android:textColor="?attr/colorOnBackground"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView"
tools:text="\@april_ludgate" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_5"
android:layout_marginEnd="@dimen/keyline_4"
android:orientation="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableStart="@drawable/drawable_company"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Company\t\t: ` + user.company}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2"
tools:text="\Company\t\t: Google, Inc." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_location"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Location\t\t\t: ` + user.location}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView3"
tools:text="Location\t\t\t: Pittsburgh, PA, USA" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_repository"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Repository\t: ` + user.repository}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView4"
tools:text="Repository\t: 2" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_follower"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Followers\t\t: `}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
addNumberToText="@{user.followers}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView5"
tools:text="Followers\t\t: 1029" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_following"
android:drawablePadding="@dimen/keyline_2"
android:text="@{`Following\t\t: `}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
addNumberToText="@{user.following}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView6"
tools:text="Following\t\t: 101" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
这是我的编辑器预览显示的内容（我想要的）。
这是显示问题的工具检查器。
正如您在第二张图片中看到的，当 LinearLayout 有 space（左右）时，TextView 换行为两行。我希望 LinearLayout 尽可能多地使用 space，但尽可能少的 space 仍能在一行中显示所有 TextView。使用 android:maxLines=1 和 android:singleLine=true 分别导致文本被截断和省略；我不想要这个。是什么导致了这个问题？如果不可能以这种方式实现我想要的，我如何实现我所描述的（不使用固定值，例如边距和准则来对齐 TextViews）？
与问题无关：为什么我的 MaterialTextView 在我的 Android Studio eidtor 预览中不能正确显示？
如 \t) 导致布局出现问题。只需擦除制表符并用几个 space 替换它们即可。但是，由于我使用的字体不是 monospaced，因此冒号部分没有完全对齐。
另一种解决方案是将每行一个 TextView 分成两个 TextView。这也对我有利，因为现在，我可以提供多种语言的字符串文字（例如 Company、Location 等）并添加动态生成的内容（来自数据绑定 user) 到整体显示的文本。然后，在所有分离之后，将 TextView 放在一个 ConstraintLayout 中，替换 原来的 LinearLayout。现在，我们的结构如下（有问题的部分）。
ConstraintLayout
|__ TextView (first part for row 1)
|__ TextView (second part for row 1)
|__ ...
|__ TextView (first part for row n)
|__ TextView (second part for row n)
然后，创建一个障碍，方向 end 引用每行的所有第一部分。将每一行的所有第二部分相对于屏障定位，并添加一些 marginStart 以在第一部分和第二部分之间创建 space。第二部分包含冒号和动态生成的内容。
这是最后的XML。
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
<variable
name="user"
type="com.mobile.githubuser.model.GithubUser" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.google.android.material.appbar.MaterialToolbar
android:id="@+id/act_details_toolbar"
android:layout_width="match_parent"
android:layout_height="@dimen/toolbar_height"
android:background="?attr/colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="@string/act_user_details_toolbar_title"
app:titleTextAppearance="@style/TextAppearance.Toolbar" />
<com.google.android.material.imageview.ShapeableImageView
android:id="@+id/shapeableImageView"
style="@style/Widget.GithubUser.ShapeableImageView.Circular"
android:layout_width="@dimen/user_details_avatar_size"
android:layout_height="@dimen/user_details_avatar_size"
android:layout_marginTop="@dimen/keyline_5"
android:src="@{user.avatar}"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/act_details_toolbar" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_4"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{user.name}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceHeadline2"
android:textColor="?attr/colorOnBackground"
app:layout_constraintTop_toBottomOf="@+id/shapeableImageView"
tools:layout_editor_absoluteX="16dp"
tools:text="April Ludgate" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_2"
android:layout_marginEnd="@dimen/keyline_4"
android:text="@{`@` + user.username}"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceSubtitle2"
android:textColor="?attr/colorOnBackground"
android:textSize="16sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView"
tools:text="\@april_ludgate" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_4"
android:layout_marginTop="@dimen/keyline_5"
android:layout_marginEnd="@dimen/keyline_4"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView2">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableStart="@drawable/drawable_company"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/company_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_location"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/location_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView3" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_repository"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/repository_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView4" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_follower"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/followers_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView5" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/keyline_0"
android:drawableStart="@drawable/drawable_following"
android:drawablePadding="@dimen/keyline_2"
android:text="@string/following_label"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/materialTextView6" />
<androidx.constraintlayout.widget.Barrier
android:id="@+id/barrier2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:barrierDirection="right"
app:constraint_referenced_ids="materialTextView3,materialTextView4,materialTextView5,materialTextView6,materialTextView7"/>
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:text="@{`: ` + user.company}"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView3"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView3"
tools:text=": Google, Inc." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:text="@{`: ` + user.location}"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView4"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView4"
tools:text=": Pittsburgh, PA, U.S.A." />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView10"
formatNumberToTextWithColon="@{user.repository}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView5"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView5"
tools:text=": 1,234" />
<com.google.android.material.textview.MaterialTextView
android:id="@+id/materialTextView11"
formatNumberToTextWithColon="@{user.followers}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:layout_marginBottom="2dp"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="@+id/materialTextView6"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView6"
tools:text=": 304" />
<com.google.android.material.textview.MaterialTextView
formatNumberToTextWithColon="@{user.following}"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/keyline_2"
android:textAppearance="?attr/textAppearanceBody1"
android:textColor="?attr/colorOnBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toEndOf="@id/barrier2"
app:layout_constraintTop_toTopOf="@+id/materialTextView7"
tools:text=": 1" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>