android 中的 ScrollView 内的 ListView

Question

当我运行时，listview 位于 scrollview 内，应用列表滚动仅限于第一项。我认为 Scrillview 覆盖了列表视图的滚动，这是我的代码：

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="0.7"
    android:padding="10dp">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <Button
                android:layout_width="match_parent"
                android:layout_height="40dp"
                android:id="@+id/client_detail"
                android:text="CLIENT INFORMATION"
                android:textColor="@color/colorPrimaryDark"
                android:background="@drawable/login_selector"/>

                <RelativeLayout
                    android:id="@+id/rl1"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:padding="10dp"
                    android:visibility="gone"
                    android:layout_below="@+id/client_detail">

                    /* HERE IS MY SOME OTHER LAYOUT */

                </RelativeLayout>
                <Button
                    android:text="CONTACT DETAILS"
                    android:layout_width="match_parent"
                    android:layout_height="40dp"
                    android:background="@drawable/login_selector"
                    android:textColor="@color/colorPrimaryDark"
                    android:layout_below="@+id/rl1"
                    android:layout_marginTop="10dp"
                    android:layout_centerHorizontal="true"
                    android:id="@+id/contactDetails" />

                <ListView
                    android:id="@+id/listView"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@+id/contactDetails"
                    android:layout_centerHorizontal="true"
                    android:layout_marginTop="10dp" />

        </RelativeLayout>
    </ScrollView>    
</RelativeLayout>

需要一些帮助，在此先感谢！

Answer 1

您需要使用 ExpandableHeightListView。

https://github.com/paolorotolo/ExpandableHeightListView

Answer 2

当您将 ListView 与 ScrollView 一起使用时，只有 ListView 的一行可见，因此您必须根据元素以编程方式设置 ListView 的高度在 ListView 里面。你可以做一个像这样的函数-

  public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        return;
    }
    int desiredWidth = View.MeasureSpec.makeMeasureSpec(listView.getWidth(), View.MeasureSpec.AT_MOST);
    int totalHeight = 0;
    View view = null;
    for (int i = 0; i < listAdapter.getCount(); 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() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

那你在创建的listview上使用这个方法-

  HourAdapter adapter1=new HourAdapter(getActivity(),day,start,end,x);
                    listview.setAdapter(adapter1);
                    setListViewHeightBasedOnChildren(listview);

即使 ListView 的行具有可变高度

也能正常工作

android 中的 ScrollView 内的 ListView

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