如何在另一个布局中使用 ScrollView?

How to use ScrollView inside another layout?

我想在另一个约束布局中使用 ScrollView。但是当我放置它时,ScrollView 内的所有视图都消失了。为什么,以及如何解决它?

非常感谢您的帮助,希望您度过愉快的一天!

我的xml

<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=".home.profile.PreViewProfileFragment">

    <androidx.constraintlayout.widget.Guideline
        ... />
<ScrollView
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintStart_toEndOf="@id/vertical_2"
        app:layout_constraintEnd_toEndOf="@id/vertical_98"
        app:layout_constraintTop_toTopOf="@id/horizontal_10"
        app:layout_constraintBottom_toBottomOf="@id/horizontal_98">

        <Another constraintLayout>

</ScrollView>

</androidx.constraintlayout.widget.ConstraintLayout>

这样的蓝图

像下面这样使用:

    <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=".home.profile.PreViewProfileFragment">
        
            <androidx.constraintlayout.widget.Guideline
                ... />
        <ScrollView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fillViewport="true"
                app:layout_constraintStart_toEndOf="@id/vertical_2"
                app:layout_constraintEnd_toEndOf="@id/vertical_98"
                app:layout_constraintTop_toTopOf="@id/horizontal_10"
                app:layout_constraintBottom_toBottomOf="@id/horizontal_98">
        
                <Another constraintLayout>
        
        </ScrollView>
        
</androidx.constraintlayout.widget.ConstraintLayout>