根据单击的项目操作ListView中的其他列表项目

我有一个包含带有自定义适配器的ListView的片段。我的目标是操纵列表项的子视图（以显示阴影）。如果单击某个项目，则必须通过更改创建阴影的视图的可见性来操纵列表项目之前和之后的视图。

我可以成功获取参考并更改可见性，但是问题是我无法获得对当前项目上方和下方的视图的引用（因为阴影已添加到所需的阴影中以创建阴影效果）。

我在片段的mSettingsListView上使用onItemClick侦听器。

分段：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    Log.d("Debugging", "onCreateView");
    View view = inflater.inflate(R.layout.settings_fragment_list, container, false);
    final ViewGroup viewGroup = container;

    Log.d(getTag(), "Finding settingsListView");
    mSettingsListView = (ListView) view.findViewById(R.id.settingsListView);
    mSettingsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Log.d("Debugging", "settingsListView onItemClick position: " + position);

            // Remove right shadow on current item when clicked
            View rightShadow = view.findViewById(R.id.settingsListRowShadowRight);
            rightShadow.setVisibility(View.GONE);

            // Shadow to be shown when active list item is the last
            // Shadow is shown on item above and view below list
            Log.d("Debugging", "settingsListView onItemClick position else clause");

            // Add a shadow at the bottom of the list item ABOVE current
            View aboveView = parent.getAdapter().getView(position -1, view, viewGroup);
            View aboveViewShadow = aboveView.findViewById(R.id.settingsListRowShadowAbove);
            aboveViewShadow.setVisibility(View.VISIBLE);

            // Add a shadow at the top of the list item BELOW current
            View belowView = parent.getAdapter().getView(position +1, view, viewGroup);
            View belowViewShadow = belowView.findViewById(R.id.settingsListRowShadowBelow);
            belowViewShadow.setVisibility(View.VISIBLE);
        }
    });

    return view;
}

现在，阴影不会添加到上方和下方的列表项中，而是会添加到所单击的项目上。另一个怪癖是，当单击列表项时，它将使用下面的列表项的文本进行更新。

列表项的布局：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/settingsListRowContainer"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:background="@drawable/settings_list_view_listitem_selector">

    <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:orientation="horizontal"
            android:paddingTop="@dimen/giraf_settings_list_row_paddingTop"
            android:paddingBottom="@dimen/giraf_settings_list_row_paddingBottom"
            android:paddingLeft="@dimen/giraf_settings_list_row_paddingLeft"
            android:paddingRight="@dimen/giraf_settings_list_row_paddingRight">

        <ImageView
                android:id="@+id/settingsListAppLogo"
                android:layout_width="@dimen/giraf_settings_list_row_imageView_size"
                android:layout_height="@dimen/giraf_settings_list_row_imageView_size"
                android:layout_marginRight="@dimen/giraf_settings_list_row_imageView_marginRight">
        </ImageView>

        <TextView
                android:id="@+id/settingsListAppName"
                android:layout_toRightOf="@id/settingsListAppLogo"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:gravity="center_vertical"
                android:textColor="@android:color/black"
                android:text="@string/giraf_settings_name"
                android:textSize="32dp" >
        </TextView>

    </LinearLayout>

    <!-- Shadow showing ABOVE active list item -->
    <FrameLayout
            android:id="@+id/settingsListRowShadowAbove"
            android:layout_width="fill_parent"
            android:layout_height="@dimen/giraf_settings_list_shadowSize"
            android:layout_gravity="bottom"
            android:background="@drawable/settings_list_view_shadow_top"
            android:visibility="gone"/>

    <!-- Shadow showing BELOW active list item -->
    <FrameLayout
            android:id="@+id/settingsListRowShadowBelow"
            android:layout_width="fill_parent"
            android:layout_height="@dimen/giraf_settings_list_shadowSize"
            android:layout_gravity="top"
            android:background="@drawable/settings_list_view_shadow_bottom"
            android:visibility="gone"/>

    <!-- Right shadow showing on a list item when inactive -->
    <FrameLayout
            android:id="@+id/settingsListRowShadowRight"
            android:layout_width="@dimen/giraf_settings_list_shadowSize"
            android:layout_height="fill_parent"
            android:layout_gravity="right"
            android:background="@drawable/settings_list_view_shadow_right"/>

</FrameLayout>

我不是如何使适配器在某个位置返回视图，以及在引用它时是否应该/如何使它膨胀？

编辑：刚刚添加了自定义适配器的getView（）方法。

定制适配器的getView方法：

public View getView(int position, View convertView, ViewGroup parent) {
    View vi = convertView;

    if(convertView == null)
        vi = mInflater.inflate(R.layout.settings_fragment_list_row, null);

    // Get current item in the list
    SettingsListItem item = mApplicationList.get(position);

    ImageView appIcon = (ImageView)vi.findViewById(R.id.settingsListAppLogo);
    TextView appNameText = (TextView)vi.findViewById(R.id.settingsListAppName);

    // Setting all values in ListView
    appIcon.setBackgroundDrawable(item.appIcon);
    appNameText.setText(item.appName);

    return vi;
}