Добавьте android:textAlignment="center"
к вашему textViews
и сделайте родительскую ширину равной ширине экрана:
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="0dp"
android:layout_height="?attr/actionBarSize"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="text1"
android:textAlignment="center"
app:layout_constraintBottom_toTopOf="@id/textView_subtitle"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_subtitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="text2"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/textView_title" />
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:id="@+id/textView_login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="註冊/登入"
android:textAlignment="textEnd"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
</androidx.constraintlayout.widget.ConstraintLayout>
Это будет выглядеть так:
![enter image description here](https://i.stack.imgur.com/vD07P.png)
Если вы хотите избежать вложения, вы можете добиться этого, используя единый макет:
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="text1"
android:textAlignment="center"
app:layout_constraintBottom_toTopOf="@id/textView_subtitle"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView_subtitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="text2"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/textView_title" />
<TextView
android:id="@+id/textView_login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="註冊/登入"
android:textAlignment="textEnd"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@+id/textView_title"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="MissingConstraints" />
</androidx.constraintlayout.widget.ConstraintLayout>
И это будет выглядеть так:
![enter image description here](https://i.stack.imgur.com/Htl5n.png)
Вы можете достичь этого макета с вложением или без него, но более рекомендуется избегать вложений, когда возможно, если вы используете constaintLayout
Редактировать
Это новый макет: (Я добавил 1 Guildeline )
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="@+id/textView_subtitle"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@+id/guideline2"
app:layout_constraintTop_toTopOf="parent">
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.7" />
<TextView
android:id="@+id/textView_login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="註冊/登入"
android:textAlignment="textEnd"
app:layout_constraintBottom_toBottomOf="@+id/textView_subtitle"
app:layout_constraintEnd_toEndOf="@+id/constraintLayout"
app:layout_constraintStart_toStartOf="@+id/guideline2"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="MissingConstraints" />
<TextView
android:id="@+id/textView_subtitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="long longggggggggggggggggggggggggggggggggggggggggg"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toStartOf="@+id/guideline2"
app:layout_constraintStart_toStartOf="@+id/textView_title"
app:layout_constraintTop_toBottomOf="@+id/textView_title" />
<TextView
android:id="@+id/textView_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:lines="1"
android:text="longggggggggggggggggggggggggggggggggg"
android:textAlignment="center"
app:layout_constraintEnd_toStartOf="@+id/guideline2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
Вот как это будет выглядеть:
![enter image description here](https://i.stack.imgur.com/TO0Cz.png)