Android: ScrollView 包含两个嵌套的 Constraint Layouts，无法水平填满屏幕

Question

我遇到以下问题XML：

<?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">
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="0dp">

            <View
                android:id="@+id/block"
                android:layout_width="match_parent"
                android:layout_height="200dp"
                android:layout_marginTop="8dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.5"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <LinearLayout
                android:id="@+id/linearLayout"
                android:layout_width="match_parent"
                android:layout_height="250dp"
                android:background="#419E9E9E"
                android:orientation="horizontal"
                android:paddingTop="8dp"
                android:paddingBottom="8dp"
                app:layout_constraintTop_toBottomOf="@id/block"></LinearLayout>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/holder"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/linearLayout">

                <TextView
                    android:id="@+id/holderText"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="50dp"
                    android:layout_marginLeft="50dp"
                    android:layout_marginTop="12sp"
                    android:gravity="center_vertical"
                    android:maxLines="4"
                    android:text="Hello World"
                    android:textColor="@color/colorPrimaryDark"
                    android:textSize="24sp"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="@+id/holder" />

                <Button
                    android:id="@+id/Button"
                    android:layout_width="wrap_content"
                    android:layout_height="40dp"
                    android:layout_marginTop="20dp"
                    android:layout_marginEnd="20dp"
                    android:layout_marginBottom="20dp"
                    android:text="Button"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent" />
            </androidx.constraintlayout.widget.ConstraintLayout>


        </androidx.constraintlayout.widget.ConstraintLayout>
    </ScrollView>

</androidx.constraintlayout.widget.ConstraintLayout>

在垂直方向上，布局符合我的要求：它放置最后一个布局并填满屏幕。但是，当设备水平翻转时，由于 app:layout_constraintBottom_toBottomOf="parent"

对自身的约束，底部（嵌套的约束布局）消失了

“如何在水平滚动的同时用第二个布局填充屏幕？”

我附上了图片和一个演示存储库来隔离问题。

Link: https://github.com/taesookim0412/Whosebug_Question_Android_NestedConstraintLayouts_ScrollView

Answer 1

我找到了解决办法。您可以使用

而不是 minHeight

app:layout_constraintHeight_min="100dp"

Android: ScrollView 包含两个嵌套的 Constraint Layouts，无法水平填满屏幕

Android: ScrollView containing two nested ConstraintLayouts, cant fill screen horizontally

xml

android

scrollview