android - ScrollView 中的 ExpandableListView

Question

在我的应用程序中，我想制作一个页面，该页面具有 ExpandableListView 并在其下方有 CheckBox。

我的问题是我的 ExpandableListView 太大，使 CheckBox 超出了页面。

在较小的屏幕上根本不可见。

我试图将 ExpandableListView 放入 ScrollView 中，但它不起作用。

有没有办法制作我的设计？

这是我的代码和截图。

XML代码:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/White" >

    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:fillViewport="true" >

        <RelativeLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >

            <TextView
                android:id="@+id/textView1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_marginTop="15sp"
                android:text="In this page you can save a group of exercise under one routine."
                android:textColor="@color/Black"
                android:textSize="20sp" />

            <ExpandableListView
                android:id="@+id/instructionsExView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_below="@+id/textView1"
                android:layout_marginTop="15sp" >
            </ExpandableListView>

            <TextView
                android:id="@+id/textView2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/instructionsExView"
                android:layout_marginTop="15sp"
                android:text="If you want to open the instruction again check &apos;need help?&apos;"
                android:textColor="@color/Black"
                android:textSize="20sp" />

            <CheckBox
                android:id="@+id/checkInstructions"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_below="@+id/textView2"
                android:layout_marginTop="16dp"
                android:checked="false"
                android:text="dont show again when opening the page"
                android:textColor="@color/Black" />

        </RelativeLayout>
    </ScrollView>

</RelativeLayout>

屏幕截图:

编辑:

Answer 1

在您的“onCreate”方法中写入:“setListViewHeight(expListView)”在“expListView.setAdapter(listAdapter)”之后，然后为您的可扩展 ListView 设置 OnGroupClickListener，如下所示:

expListView.setOnGroupClickListener(new OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {
            setListViewHeight(parent, groupPosition);
            return false;
        }
    });

使用方法:

private void setListViewHeight(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
    View listItem = listAdapter.getView(i, null, listView);
    listItem.measure(0, 0);
    totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight
    + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
    }


    private void setListViewHeight(ExpandableListView listView,
    int group) {
    ExpandableListAdapter listAdapter = (ExpandableListAdapter) listView.getExpandableListAdapter();
    int totalHeight = 0;
    int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(),
    MeasureSpec.EXACTLY);
    for (int i = 0; i < listAdapter.getGroupCount(); i++) {
    View groupItem = listAdapter.getGroupView(i, false, null, listView);
    groupItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);

    totalHeight += groupItem.getMeasuredHeight();

    if (((listView.isGroupExpanded(i)) && (i != group))
    || ((!listView.isGroupExpanded(i)) && (i == group))) {
    for (int j = 0; j < listAdapter.getChildrenCount(i); j++) {
    View listItem = listAdapter.getChildView(i, j, false, null,
    listView);
    listItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);

    totalHeight += listItem.getMeasuredHeight();

    }
    }
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    int height = totalHeight
    + (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1));
    if (height < 10)
    height = 200;
    params.height = height;
    listView.setLayoutParams(params);
    listView.requestLayout();

    }

现在你可以开始了。