Show list in listview in full

Question

I have a listview inside ConstraintLayout which must show all my list im full, and make constraintlayout bigger. All options what i found dont work in my case.

All this options which i tried not showing listview completely, every option leaves a half or more items to scroll

Here is my xml :

<android.support.constraint.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"
    android:background="@color/colorPrimary">

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

        <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <android.support.constraint.ConstraintLayout
                android:id="@+id/question_content_container"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="14dp"
                android:layout_marginTop="59dp"
                android:layout_marginEnd="14dp"
                android:layout_marginBottom="22dp"
                android:background="@color/white"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="1.0"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintVertical_bias="0.0">

                ...

                <ListView
                    android:id="@+id/answers_list"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="12dp"
                    android:layout_marginTop="18dp"
                    android:layout_marginEnd="12dp"
                    android:footerDividersEnabled="false"
                    android:layout_marginBottom="7dp"
                    android:divider="@drawable/divider"
                    android:scrollbars="none"
                    android:transcriptMode="alwaysScroll"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toBottomOf="@+id/question_tv"
                    app:layout_constraintVertical_bias="0.0" />

                ...

            </android.support.constraint.ConstraintLayout>

           ...

        </android.support.constraint.ConstraintLayout>
    </ScrollView>
</android.support.constraint.ConstraintLayout>

I already tried :

public static boolean setListViewHeightBasedOnItems(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter != null) {
        int numberOfItems = listAdapter.getCount();
        // Get total height of all items.
        int totalItemsHeight = 0;
        for (int itemPos = 0; itemPos < numberOfItems; itemPos++) {
            View item = listAdapter.getView(itemPos, null, listView);
            item.measure(0, 0);
            totalItemsHeight += item.getMeasuredHeight();
        }
        // Get total height of all item dividers.
        int totalDividersHeight = listView.getDividerHeight() *
                (numberOfItems - 1);
        // Set list height.
        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalItemsHeight + totalDividersHeight;
        listView.setLayoutParams(params);
        listView.requestLayout();
        return true;
    } else {
        return false;
    }

and

public void setListViewHeightBasedOnChildren(ListView listView) {
        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter == null)
            return;
        int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.UNSPECIFIED);
        int totalHeight = 0;
        View view = null;
        int itemCount = listAdapter.getCount();
        for (int i = 0; i <= itemCount; i++) {
            view = listAdapter.getView(i, view, listView);
            if (i == 0)
                view.setLayoutParams(new ViewGroup.LayoutParams(desiredWidth, ViewGroup.LayoutParams.WRAP_CONTENT));
            view.measure(desiredWidth, View.MeasureSpec.UNSPECIFIED );
            totalHeight += view.getMeasuredHeight();
        }
        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = (totalHeight + (listView.getDividerHeight() * (itemCount - 1)));
        listView.setLayoutParams(params);
        listView.requestLayout();
    }

Answer 1

对于我来说，拥有一个列表视图并能够滚动浏览它的工作是使该滚动视图作为父视图，并在该滚动视图内部具有约束布局。

Answer 2

就我而言，我发现的唯一解决方案是将ListView与RecylerView交换。