Question

我的ExpandableListView在我的Galaxy Note 3上正常运行，如下图所示：

Note 3

但是在我的Nexus 7和Galaxy Note 10.1上，当我展开列表以显示孩子时，会出现一堆额外的空间。（在我点击父母之前，空格不会出现。）

来自Nexus 7：

nexus 7

我的第一个猜测是我的布局资源有些不一致（我有不同的sw-600和sw-700布局资源）但是删除更大的屏幕资源，行为是一样的。我还在我的适配器类中注释了getGroupView和getChildView方法中的所有内容，而不是夸大布局，但仍然是这种行为。所以现在我不知道造成这种行为的原因。我想其他重要的细节是我在AlertDialog中这样做，但它并没有解释为什么它似乎只发生在更大的设备上。

初始化ExpandableListAdapter和AlertDialog：

private void showServicesDialog(final ArrayList<Service> services) {
        View dView = activity.getLayoutInflater().inflate(R.layout.expandable_list_view, null);
        View header = activity.getLayoutInflater().inflate(R.layout.service_list_header, null);
        AlertDialog servicesDialog = DialogHelper.createLayoutAlertDialog(activity, null, dView, 
                R.string.cancel, R.string.add_services, 
                new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                if (selectedServices.size() > 0) {
                    addServicesToBackend();
                } 
            }
        });

        ExpandableListView list = (ExpandableListView) dView.findViewById(R.id.expandableListView);
        ServicesExpandableListAdapter adapter = new ServicesExpandableListAdapter(activity, services);
        list.setGroupIndicator(null);
        list.setSelector(R.drawable.list_selector_bg);
        list.setDivider(null);
        list.addHeaderView(header);
        list.setAdapter(adapter);

        servicesDialog.show();
}

从我的Adapter类：

  public ServicesExpandableListAdapter(Activity act, ArrayList<Service> s) {
        activity = (MyActivity) act;
        services = s;

        itemChecked = new ArrayList<Boolean>();
        for (int i = 0; i < services.size(); i++)
            itemChecked.add(false);
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return services.get(groupPosition);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return 1;
    }

    @Override
    public Object getGroup(int groupPosition) {
        return services.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return services.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return false;
    }

    private static class ParentViewHolder {
        TextView nameTV, categoryTV, expandTV, typeTV, amountTV, warningTV;
        CheckBox checkbox;
    }

    @Override
    public View getGroupView(final int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {
        ParentViewHolder holder = null;
        final Service service = services.get(groupPosition);

        if (convertView == null) {
            convertView = activity.getLayoutInflater().inflate(R.layout.service_list_parent_item, null);
            holder = new ParentViewHolder();
            holder.nameTV = (TextView) convertView.findViewById(R.id.nameTV);
            holder.typeTV = (TextView) convertView.findViewById(R.id.typeTV);
            holder.categoryTV = (TextView) convertView.findViewById(R.id.categoryTV);
            holder.expandTV = (TextView) convertView.findViewById(R.id.expandTV);
            holder.amountTV = (TextView) convertView.findViewById(R.id.amountTV);   
            holder.checkbox = (CheckBox) convertView.findViewById(R.id.selectCB);   
            holder.warningTV = (TextView) convertView.findViewById(R.id.warningTV); 

            convertView.setTag(holder);
        } else {
            holder = (ParentViewHolder) convertView.getTag();
        }

        //content commented out

        return convertView;
    }

    private static class ChildViewHolder {
        TextView typeTV, priceTV, infoTV;
        CheckBox weekdaysCB, saturdaysCB, sundaysCB, holidaysCB;
    }

    @Override
    public View getChildView(int groupPosition, int childPosition,
            boolean isLastChild, View convertView, ViewGroup parent) {
        ChildViewHolder holder = null;

        if (convertView == null) {
            convertView = activity.getLayoutInflater().inflate(R.layout.service_list_child_item, null);
            holder = new ChildViewHolder();
            holder.typeTV = (TextView) convertView.findViewById(R.id.typeTV);
            holder.priceTV = (TextView) convertView.findViewById(R.id.priceTV);
            holder.infoTV = (TextView) convertView.findViewById(R.id.infoTV);
            holder.weekdaysCB = (CheckBox) convertView.findViewById(R.id.weekdaysCB);
            holder.saturdaysCB = (CheckBox) convertView.findViewById(R.id.saturdaysCB);
            holder.sundaysCB = (CheckBox) convertView.findViewById(R.id.sundaysCB);
            holder.holidaysCB = (CheckBox) convertView.findViewById(R.id.holidaysCB);
            convertView.setTag(holder);
        } else {
            holder = (ChildViewHolder) convertView.getTag();
        }

        //content commented out

        return convertView;
    }

service_list_parent_item.xml

<?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="wrap_content" >
        <View
            android:id="@+id/topDivider"
            android:layout_width="match_parent"
            android:layout_height="1px"
            android:layout_alignParentTop="true"
            android:background="@color/gray_divider" />
        <TextView
            android:id="@+id/nameTV"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="20dp"
            android:layout_marginTop="5dp"
            android:layout_toLeftOf="@+id/warningTV"
            android:text="Service name"
            android:textAppearance="@style/regularText" />
        <TextView
            android:id="@+id/typeTV"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/nameTV"
            android:layout_below="@+id/nameTV"
            android:layout_marginBottom="3dp"
            android:layout_marginRight="5dp"
            android:background="@color/holo_light_purple"
            android:drawableLeft="@drawable/ic_clock_tiny_white" />
        <TextView
            android:id="@+id/categoryTV"
            style="@style/regularTextVerySmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/typeTV"
            android:layout_marginBottom="3dp"
            android:layout_marginRight="5dp"
            android:layout_toLeftOf="@+id/expandTV"
            android:layout_toRightOf="@+id/typeTV"
            android:ellipsize="end"
            android:lines="1"
            android:text="Category Name that is super long" />
        <TextView
            android:id="@+id/warningTV"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@+id/selectCB"
            android:layout_marginRight="5dp"
            android:background="@drawable/action_bar_selector"
            android:drawableRight="@drawable/ic_warning_gray"
            android:clickable="false"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:padding="5dp"
            android:visibility="invisible" />
        <CheckBox
            android:id="@+id/selectCB"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:padding="5dp" />
        <TextView
            android:id="@+id/amountTV"
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="10dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/blue_button_selector"
            android:clickable="false"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:gravity="center"
            android:text="0.0"
            android:textColor="@color/white"
            android:textSize="15sp"
            android:textStyle="bold" />
         <TextView
             android:id="@+id/expandTV"
             style="@style/regularTextVerySmall"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentBottom="true"
             android:layout_alignRight="@+id/bottomDivider"
             android:drawableRight="@drawable/ic_expand_arrow_gray"
             android:gravity="bottom"
             android:paddingBottom="5dp"
             android:text="@string/expand"
             android:textColor="@color/lighter_gray_text" />
        <View
            android:id="@+id/bottomDivider"
            android:layout_width="90dp"
            android:layout_height="3dp"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:layout_marginRight="60dp"
            android:background="@color/blue" />
</RelativeLayout>

service_list_child_item.xml

<?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="wrap_content"
    android:background="@color/gray_tasklist" >
    <View
        android:id="@+id/topDivider"
        android:layout_width="match_parent"
        android:layout_height="3dp"
        android:layout_alignParentTop="true"
        android:background="@color/blue" />
    <View
        android:id="@+id/centerView"
        android:layout_width="1px"
        android:layout_height="1px"
        android:layout_below="@+id/topDivider"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="10dp" />
    <TextView
        android:id="@+id/typeTV"
        style="@style/regularTextVerySmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/topDivider"
        android:layout_marginTop="10dp"
        android:layout_toLeftOf="@+id/centerView"
        android:drawableLeft="@drawable/ic_clock_tiny_purple"
        android:drawablePadding="4dp"
        android:gravity="center_vertical"
        android:text="@string/time_service"
        android:textColor="@color/holo_light_purple" />
    <TextView
        android:id="@+id/priceTV"
        style="@style/regularTextSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/typeTV"
        android:layout_marginLeft="35dp"
        android:layout_toRightOf="@+id/centerView"
        android:text="35e/hr"
        android:textColor="@color/blue" />
    <RelativeLayout
        android:id="@+id/relativeLayout1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/typeTV"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="5dp" >
        <CheckBox
            android:id="@+id/weekdaysCB"
            style="@style/regularTextVerySmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:enabled="false"
            android:text="@string/weekdays" />
        <CheckBox
            android:id="@+id/holidaysCB"
            style="@style/regularTextVerySmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/weekdaysCB"
            android:layout_below="@+id/weekdaysCB"
            android:enabled="false"
            android:text="@string/holidays" />
        <CheckBox
            android:id="@+id/saturdaysCB"
            style="@style/regularTextVerySmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/weekdaysCB"
            android:layout_toRightOf="@+id/weekdaysCB"
            android:enabled="false"
            android:text="@string/saturdays" />
        <CheckBox
            android:id="@+id/sundaysCB"
            style="@style/regularTextVerySmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/holidaysCB"
            android:layout_alignLeft="@+id/saturdaysCB"
            android:enabled="false"
            android:text="@string/sundays" />
    </RelativeLayout>
    <TextView
        android:id="@+id/infoTV"
        style="@style/regularTextVerySmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/relativeLayout1"
        android:layout_centerHorizontal="true"
        android:gravity="center_horizontal"
        android:padding="5dp" />
</RelativeLayout>

最后，expandable_list_view.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/gray_tasklist"
    android:orientation="vertical" >
    <ExpandableListView
        android:id="@+id/expandableListView"
        style="@style/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="@color/gray_divider"
        android:dividerHeight="1px"
        android:childDivider="#00000000"/>
</LinearLayout>

ExpandableListView扩展在大屏幕上的列表下方添加了额外的空间

0 个答案: