android - 在抽屉导航中添加 2 个 ListView ，只有一个有效

Question

我尝试创建一个抽屉导航，里面有 2 个单独的 ListView 。

名为"mDrawerList" 的第一个 ListView 显示良好。 - 此列表中只有一项。

名为 "mListProcheDeChezVous" 的第二个 ListView 从不显示。 - 此 ListView 中有 3 个项目。

当我发表评论时，第一个 listview，第二个没有显示，所以我认为创建第二个 listview 时有问题..但我不知道在哪里？

这是抽屉导航布局的代码:

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <ListView
        android:id="@+id/dernieres_news"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="#E3E9E3"
        android:dividerHeight="1dp"
        android:background="#F3F3F4"/>

    <ListView
        android:id="@+id/pres_de_chez_vous"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="#E3E9E3"
        android:dividerHeight="1dp"
        android:background="#F3F3F4"/>

</android.support.v4.widget.DrawerLayout>

这是我的 MainActivity 类的一段代码:

public class MainActivity extends Activity {
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList, mListProcheDeChezVous;
    private ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mDrawerTitle;
    private CharSequence mTitle;
    private String[] mPlanetTitles;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mTitle = mDrawerTitle = getTitle();
        mPlanetTitles = getResources().getStringArray(R.array.planets_array);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        // Declaration of the 2 listview's 
        mDrawerList = (ListView) findViewById(R.id.dernieres_news);
        mListProcheDeChezVous= (ListView) findViewById(R.id.pres_de_chez_vous);

        LayoutInflater inflater = getLayoutInflater();

        // Add header news title
        ViewGroup header_news = (ViewGroup)inflater.inflate(R.layout.header_dernieres_news, mDrawerList, false);
        mDrawerList.addHeaderView(header_news, null, false);

        // Add header "proche de chez vous title"
        ViewGroup header_pres_de_chez_vous = (ViewGroup)inflater.inflate(R.layout.header_pres_de_chez_vous, mListProcheDeChezVous, false);
        mListProcheDeChezVous.addHeaderView(header_pres_de_chez_vous, null, false);

        // set a custom shadow that overlays the main content when the drawer opens
        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        /*
         * FIRST ADAPTER FOR FIRST LISTVIEW
         */

        String[] names=new String[]{"Dernières News"};

        /*Array of Images*/
        int[] image = new int[] {R.drawable.ic_action_feed};

        List<HashMap<String, String>> listinfo = new ArrayList<HashMap<String, String>>();
        listinfo.clear();
        for(int i=0;i<1;i++){
            HashMap<String, String> hm = new HashMap<String, String>();
            hm.put("name", names[i]);
            hm.put("image", Integer.toString(image[i]));
            listinfo.add(hm);
        }

        // Keys used in Hashmap
        String[] from = { "image", "name" };
        int[] to = { R.id.img, R.id.txt };
        SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), listinfo, R.layout.drawer_list_item, from, to);
        mDrawerList.setAdapter(adapter);

        /*
         * SECOND ADAPTER FOR SECOND LISTVIEW
         */

        String[] names_pres_de_chez_vous = new String[]{"Finistère", "Morbihan", "Côtes d'Armor"};

        /*Array of Images*/
        int[] image_pres_de_chez_vous = new int[] {R.drawable.ic_action_gear, R.drawable.ic_action_gear, R.drawable.ic_action_gear};

        List<HashMap<String, String>> listinfo_pres_de_chez_vous = new ArrayList<HashMap<String, String>>();
        listinfo_pres_de_chez_vous.clear();
        for(int i=0;i<3;i++){
            HashMap<String, String> hm_pres_de_chez_vous = new HashMap<String, String>();
            hm_pres_de_chez_vous.put("name", names_pres_de_chez_vous[i]);
            hm_pres_de_chez_vous.put("image", Integer.toString(image_pres_de_chez_vous[i]));
            listinfo_pres_de_chez_vous.add(hm_pres_de_chez_vous);
        }

        // Keys used in Hashmap
        String[] from_pres_de_chez_vous = { "image", "name" };
        int[] to_pres_de_chez_vous = { R.id.img, R.id.txt };
        SimpleAdapter adapter_pres_de_chez_vous = new SimpleAdapter(getBaseContext(), listinfo_pres_de_chez_vous, R.layout.drawer_list_item_pres_de_chez_vous, from_pres_de_chez_vous, to_pres_de_chez_vous);
        mListProcheDeChezVous.setAdapter(adapter_pres_de_chez_vous);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
        mListProcheDeChezVous.setOnItemClickListener(new DrawerItemClickListener());

谢谢你的帮助，

BR

Answer 1

根据创建 Navigation Drawer guide , DrawerLayouts 应该只有两个 child 。第一个是主内容 View ，第二个是抽屉 View 。

ID 为“content_frame”的 FrameLayout 被解释为包含主要内容的 View ，ID 为“dernieres_news”的 ListView 被解释为作为抽屉布局。

第三个 ListView 因此被忽略。

如果您需要将 ListView 作为抽屉的一部分，您应该将它们包装在另一个布局中，例如 LinearLayout。