Android 将标题添加到导航抽屉

我刚刚学习了本教程，并制作了一个使用导航抽屉的应用程序。如果你看一下这个链接，你会发现有两个部分：一个是他制作应用程序的部分，另一个是他定制应用程序的部分（他添加了一个微调器和一些标题）。我只想添加标题，但我不知道如何添加。 我也在谷歌上搜索了一些答案，但还没有找到答案，甚至在这里也没有。。。 有人能启发我吗

这是MainActivity.java：

public class MainActivity extends Activity {

    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mDrawerTitle;
    private CharSequence mTitle;
    CustomDrawerAdapter adapter;

    List<DrawerItem> dataList;

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

        // Initializing
        dataList = new ArrayList<DrawerItem>();
        mTitle = mDrawerTitle = getTitle();
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.left_drawer);

        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
                GravityCompat.START);

        // Add Drawer Item to dataList



        dataList.add(new DrawerItem("Message", R.drawable.ic_action_email));
        dataList.add(new DrawerItem("Likes", R.drawable.ic_action_good));
        dataList.add(new DrawerItem("Games", R.drawable.ic_action_gamepad));
        dataList.add(new DrawerItem("Lables", R.drawable.ic_action_labels));


        dataList.add(new DrawerItem("Search", R.drawable.ic_action_search));
        dataList.add(new DrawerItem("Cloud", R.drawable.ic_action_cloud));
        dataList.add(new DrawerItem("Camara", R.drawable.ic_action_camera));
        dataList.add(new DrawerItem("Video", R.drawable.ic_action_video));
        dataList.add(new DrawerItem("Groups", R.drawable.ic_action_group));
        dataList.add(new DrawerItem("Import & Export",
                R.drawable.ic_action_import_export));


        dataList.add(new DrawerItem("About", R.drawable.ic_action_about));
        dataList.add(new DrawerItem("Settings", R.drawable.ic_action_settings));
        dataList.add(new DrawerItem("Help", R.drawable.ic_action_help));

        adapter = new CustomDrawerAdapter(this, R.layout.custom_drawer_item,
                dataList);

        mDrawerList.setAdapter(adapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer, R.string.drawer_open,
                R.string.drawer_close) {
            public void onDrawerClosed(View view) {
                getActionBar().setTitle(mTitle);
                invalidateOptionsMenu(); // creates call to
                // onPrepareOptionsMenu()
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu(); // creates call to
                // onPrepareOptionsMenu()
            }
        };

        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            SelectItem(0);
        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    public void SelectItem(int possition) {

        Fragment fragment = null;
        Bundle args = new Bundle();
        switch (possition) {
            case 0:
                fragment = new FragmentOne();
                args.putString(FragmentOne.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentOne.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 1:
                fragment = new FragmentTwo();
                args.putString(FragmentTwo.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentTwo.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 2:
                fragment = new FragmentThree();
                args.putString(FragmentThree.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentThree.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 3:
                fragment = new FragmentOne();
                args.putString(FragmentOne.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentOne.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 4:
                fragment = new FragmentTwo();
                args.putString(FragmentTwo.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentTwo.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 5:
                fragment = new FragmentThree();
                args.putString(FragmentThree.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentThree.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 6:
                fragment = new FragmentOne();
                args.putString(FragmentOne.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentOne.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 7:
                fragment = new FragmentTwo();
                args.putString(FragmentTwo.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentTwo.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 8:
                fragment = new FragmentThree();
                args.putString(FragmentThree.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentThree.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 9:
                fragment = new FragmentOne();
                args.putString(FragmentOne.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentOne.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 10:
                fragment = new FragmentTwo();
                args.putString(FragmentTwo.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentTwo.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 11:
                fragment = new FragmentThree();
                args.putString(FragmentThree.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentThree.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            case 12:
                fragment = new FragmentOne();
                args.putString(FragmentOne.ITEM_NAME, dataList.get(possition)
                        .getItemName());
                args.putInt(FragmentOne.IMAGE_RESOURCE_ID, dataList.get(possition)
                        .getImgResID());
                break;
            default:
                break;
        }

        fragment.setArguments(args);
        FragmentManager frgManager = getFragmentManager();
        frgManager.beginTransaction().replace(R.id.content_frame, fragment)
                .commit();

        mDrawerList.setItemChecked(possition, true);
        setTitle(dataList.get(possition).getItemName());
        mDrawerLayout.closeDrawer(mDrawerList);

    }

    @Override
    public void setTitle(CharSequence title) {
        mTitle = title;
        getActionBar().setTitle(mTitle);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Pass any configuration change to the drawer toggles
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // The action bar home/up action should open or close the drawer.
        // ActionBarDrawerToggle will take care of this.
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }

        return false;
    }

    private class DrawerItemClickListener implements
            ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                                long id) {
            SelectItem(position);

        }
    }

}

---

您要做的是为普通项目和标题项目创建两个不同的布局文件。例如：

列表头.xml:

<TextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="20sp"/>

最后，所有的魔法都发生在

getView

方法内部。让它检查特定位置的项目是否为标题，并为特定布局充气：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    DrawerItemHolder drawerHolder;

    DrawerItem dItem = getItem(position);

    if (convertView == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        drawerHolder = new DrawerItemHolder();
        if (dItem.getImgResID() == 0) {
            // Inflate header layout
            convertView = inflater.inflate(R.layout.list_header, parent, false);
            drawerHolder.ItemName = (TextView) convertView.findViewById(R.id.textView);
            // ...
        } else {
            // Inflate normal layout
            convertView = inflater.inflate(R.layout.list_item, parent, false);
            drawerHolder.ItemName = (TextView) convertView.findViewById(R.id.textView);
            drawerHolder.icon = (ImageView) convertView.findViewById(R.id.imageView);
        }
        convertView.setTag(drawerHolder);
    } else {
        drawerHolder = (DrawerItemHolder) convertView.getTag();
    }

    drawerHolder.ItemName = dItem.getItemName();

    // ...

    return convertView;
}

然后，您的项目将如下所示：

DrawerItem("Header1", 0, true);
DrawerItem("Message", R.drawable.ic_action_email);
DrawerItem("Message", R.drawable.ic_action_email);
DrawerItem("Header2", 0, true);
DrawerItem("Message", R.drawable.ic_action_email);

---

注意：标题是一个没有可绘制的简单项（img res id==0）。

换句话说，您希望ListView中的某些项具有不同的布局？这就是我想要的。看到那些标题了吗：我的朋友和AndroidVersion？我明白了。发布您的适配器代码；给我一个警告：不兼容types@MasterZYuri确保您执行此操作以适合您的项目。这段代码大部分是片段。好的，现在我只收到崩溃。我现在必须睡觉，我明天再试一次，让你知道它是否工作。不工作。。。我认为解决方案是在网站上，从我让应用程序向下滚动，直到你找到定制导航抽屉，在那里他添加了标题和微调器，这里的事情是：他混合了标题代码和微调器的代码。也许你会找到一种只提取标题代码的方法。你运气好吗？

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@id/imageView"
        android:textSize="20sp"/>
</RelativeLayout>

@Override
public int getViewTypeCount() {
    return 2;
}

@Override
public int getItemViewType(int position) {
    if (getItem(position).getImgResID() == 0) {
        // Header type = 1
        return 1;
    } else {
        // Normal item types = 0
        return 0;
    }
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    DrawerItemHolder drawerHolder;

    DrawerItem dItem = getItem(position);

    if (convertView == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        drawerHolder = new DrawerItemHolder();
        if (dItem.getImgResID() == 0) {
            // Inflate header layout
            convertView = inflater.inflate(R.layout.list_header, parent, false);
            drawerHolder.ItemName = (TextView) convertView.findViewById(R.id.textView);
            // ...
        } else {
            // Inflate normal layout
            convertView = inflater.inflate(R.layout.list_item, parent, false);
            drawerHolder.ItemName = (TextView) convertView.findViewById(R.id.textView);
            drawerHolder.icon = (ImageView) convertView.findViewById(R.id.imageView);
        }
        convertView.setTag(drawerHolder);
    } else {
        drawerHolder = (DrawerItemHolder) convertView.getTag();
    }

    drawerHolder.ItemName = dItem.getItemName();

    // ...

    return convertView;
}

DrawerItem("Header1", 0, true);
DrawerItem("Message", R.drawable.ic_action_email);
DrawerItem("Message", R.drawable.ic_action_email);
DrawerItem("Header2", 0, true);
DrawerItem("Message", R.drawable.ic_action_email);