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Android/Java:如何在 ScrollView 中使用 ConstraintLayout,在导航栏中的 Fragment 中?

[英]Android/Java: How to use ConstraintLayout in a ScrollView, in a Fragment that is in a navigation bar?

我在将 ScrollView 包含在 ConstraintLayout 中时遇到问题。 我怎样才能混合两者? 我想很好地调整屏幕大小,但如果按钮数量会增加,则可以通过滚动屏幕来实现。

我试过这个,但没有成功。 我用了那张票

在此处输入图像描述
这是 xml 文件:

<ScrollView
    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"
    android:fillViewport="true">

<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/homeContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/imagealliance"
    android:backgroundTint="#80FFFFFF"
    android:backgroundTintMode="src_over"
    android:gravity="center"
    android:theme="@style/AppTheme"
    tools:context=".LoginActivity">

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:adjustViewBounds="true"
        android:alpha="0.6"
        android:scaleType="fitXY"
        android:src="@drawable/logoalliance"
        app:layout_constraintBottom_toTopOf="@+id/txt_login"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
    
</androidx.constraintlayout.widget.ConstraintLayout>

</ScrollView>

这是按钮的代码:

public class HomeFragment extends Fragment {
...
                        layout.addView(eventBtn);

                        if (i == 0)
                        {
                            test1 = eventBtn.getId();
                            Log.d("test1", String.valueOf(eventBtn.getId()));
                        }
                        if (i == countUser.length() - 1)
                        {
                            test2 = eventBtn.getId();
                            Log.d("test2", String.valueOf(eventBtn.getId()));
                        }

这是布局的代码:

 // Create ConstraintSet
                        ConstraintSet constraintSet = new ConstraintSet();
                        // Make sure all previous Constraints from ConstraintLayout are not lost
                        constraintSet.clone(layout2);

                        // Create Rule that states that the START of btn_contact_us1 will be positioned at the END of btn_contact_us2
                        constraintSet.connect(imageView1.getId(), ConstraintSet.START, test1, ConstraintSet.END);
                        constraintSet.applyTo(layout2);

提前致谢

尝试通过以下代码更新您的 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=".MainActivityStack">

    <ScrollView
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:fillViewport="true"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:alpha="0.6"
            android:scaleType="fitXY"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

    </ScrollView>

</androidx.constraintlayout.widget.ConstraintLayout>

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