带有ListView的ScrollView不会滚动 - android

Question

我的以下布局的问题是布局不滚动.我的要求是我必须显示2个有时可能很大的列表.所以我将ListViews放在ScrollView中,这样我就可以滚动到底部并查看ListViews.I don't want the ListView to scroll.我只希望我的ScrollView能够正常运行.有什么建议？？

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ScrollView
        android:id="@+id/scrollViewContactDetails"
        android:layout_width="match_parent"
        android:layout_height="fill_parent" android:fillViewport="true">


        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:orientation="vertical" >


            <TextView
                android:id="@+id/name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textSize="22dp" />

            <LinearLayout
                android:id="@+id/numbersLayout"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:orientation="vertical"
                android:weightSum="1" >

                <LinearLayout
                    android:id="@+id/numbersLayoutList"
                    android:layout_width="match_parent"
                    android:layout_height="fill_parent"
                    android:gravity="center"
                    android:orientation="vertical"
                    android:weightSum="1" >

                    <ListView
                        android:id="@+id/numbersList"
                        android:layout_width="match_parent"
                        android:layout_height="fill_parent"
                        android:layout_gravity="center"
                        android:dividerHeight="2dp" >
                    </ListView>
                </LinearLayout>
            </LinearLayout>

            <LinearLayout
                android:id="@+id/emailLayout"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:layout_marginRight="20dp"
                android:layout_marginTop="10dp"
                android:orientation="horizontal"
                android:weightSum="1" >

                <LinearLayout
                    android:layout_width="120dp"
                    android:layout_height="match_parent"
                    android:layout_gravity="right|center"
                    android:gravity="top|right"
                    android:orientation="vertical" >

                    <TextView
                        android:id="@+id/emailId"
                        android:layout_width="120dp"
                        android:layout_height="wrap_content"
                        android:layout_marginTop="10dp"
                        android:gravity="right|center"
                        android:textAppearance="?android:attr/textAppearanceMedium"
                        android:textColor="#8d8d8d"
                        android:textSize="18dp" />
                </LinearLayout>

                <LinearLayout
                    android:id="@+id/emailLayoutList"
                    android:layout_width="match_parent"
                    android:layout_height="fill_parent"
                    android:layout_marginLeft="20dp"
                    android:gravity="center"
                    android:orientation="vertical"
                    android:weightSum="1" >

                    <ListView
                        android:id="@+id/emailList"
                        android:layout_width="match_parent"
                        android:layout_height="fill_parent"
                        android:layout_gravity="center"
                        android:layout_weight="1"
                        android:dividerHeight="2dp" >
                    </ListView>
                </LinearLayout>
            </LinearLayout>
        </LinearLayout>
    </ScrollView>
</LinearLayout>

Answer 1

我花了几天时间试图弄清楚如何实现这个目标并找不到任何解决方案.You should not put a ListView inside a ScrollView在我搜索的每个地方都是俗话.我不想使用LinearLayout或ViewGroup,因为我已经使用ListView创建了整个UI,它对我和其他所有人来说都很棒.除了页面没有滚动之外,它运行良好.

最近我在这里偶然发现了一个问题,并试着试一下这个答案.它完美无瑕!

这是解决方案:

public class Utility {
    public static void setListViewHeightBasedOnChildren(ListView listView) {
        ListAdapter listAdapter = listView.getAdapter(); 
        if (listAdapter == null) {
            // pre-condition
            return;
        }

        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);
    }
}

在Utility.setListViewHeightBasedOnChildren(yourListView)将适配器分配到列表视图后,只需打电话就可以了!

非常感谢你DougW提出答案.这是原始链接如何在不折叠的情况下将ListView放入ScrollView？