使用DrawerLayout和ListView

时间:2013-08-23 21:48:17

标签: java android listview drawerlayout

我正在尝试编写一个Android应用程序,其中包含几个不同项目的列表视图以及可以从屏幕左侧拖动的drawerlayout。这就是我的意思....

这是主屏幕的样子: enter image description here

这就是抽屉菜单的样子: enter image description here

我遇到的问题是,当我打开侧抽屉菜单并点击一个选项时,它不起作用,菜单就关闭了。但是,我能够与主列表视图页面进行交互。这是我的代码的样子:

String[] homeArray = { "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test", "Test" };

private ListView homeListView;
private ArrayAdapter arrayAdapter;



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

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

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



    mTitle = mDrawerTitle = getTitle();
    mDrawerTitles = getResources().getStringArray(R.array.Menu);
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerList = (ListView) findViewById(R.id.left_drawer);

    // Set the adapter for the list view
    mDrawerList.setAdapter(new ArrayAdapter<String>(this,
            R.layout.drawer_list_item, mDrawerTitles));

和activity_main.xml:

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

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

<ListView
    android:id="@+id/left_drawer"
    android:layout_height="match_parent"
    android:layout_width="240dp"
    android:layout_gravity="start"
    android:choiceMode="singleChoice"
    android:divider="@android:color/darker_gray"
    android:dividerHeight="1dp"
    android:background="#111"
    />
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical"
              tools:context=".ListActivity" >

<ListView
        android:id="@+id/homeListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
</ListView>

</LinearLayout>

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

我觉得xml存在问题,但我不确定。

1 个答案:

答案 0 :(得分:3)

请发布包含NavigationDrawer的Activity的完整代码。

此外,我强烈建议您(对谷歌也是如此)将Fragments用于各个NavigationDrawer部分(“设置”,“提交Bug”和“帮助”)。

  

请勿将所有布局组件放入活动的布局文件中。

因此布局应如下所示:

<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">
    <!-- The main content view -->
    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
    <!-- The navigation drawer -->
    <ListView android:id="@+id/left_drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp"
        android:background="#111"/>
</android.support.v4.widget.DrawerLayout>

FrameLayout content_frame是您保存ListView的Fragment将进入的位置。 只需创建一个自定义片段(或使用ListFragment),其中包含您在图片中显示的ListView,并将其插入“content_frame”。

使用此选项替换内容框架内的碎片:(切换部分时)

/** Swaps fragments in the main content view */
private void selectItem(int position) {
    // Create a new fragment and specify the planet to show based on position
    Fragment fragment = new YourListFragment(); // this fragment contains the list with all the "test" items

    // Insert the fragment by replacing any existing fragment
    FragmentManager fragmentManager = getFragmentManager();
    fragmentManager.beginTransaction()
                   .replace(R.id.content_frame, fragment)
                   .commit();

    // Highlight the selected item, update the title, and close the drawer
    mDrawerList.setItemChecked(position, true);
    setTitle(mPlanetTitles[position]);
    mDrawerLayout.closeDrawer(mDrawerList);
}

Fragment的外观示例: YourListFragment.java 布局文件“list_fragment.xml”只包含您想要的任何布局组件。例如ListView。初始化填充Fragments onCreateView()方法中的ListView。

public class YourListFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.list_fragment, container, false);

        return rootView;
    }
}

所有这些都来自Googles示例,介绍如何创建NavigationDrawer:

  

http://developer.android.com/training/implementing-navigation/nav-drawer.html