ListVIew不是滑动抽屉

嗨,大家好我是Android新手,我正处于学习阶段.我按照androidhive的导航抽屉教程,使该代码向后兼容2.3.3.但我得到的错误如下:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.assignment.drawersam/com.assignment.drawersam.MainDrawerActivity}: java.lang.IllegalArgumentException: View android.widget.ListView{4170e148 VFED.VC. ......I. 0,0-0,0 #7f05003e app:id/list_slidermenu} is not a sliding drawer

我无法理解错误是什么以及如何纠正错误.任何帮助,将不胜感激.

onCreate()中的代码:

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

mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

        // nav drawer icons from resources
        navMenuIcons = getResources()
                .obtainTypedArray(R.array.nav_drawer_icons);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.list_slidermenu);

        navDrawerItem = new ArrayList();

        // adding nav drawer items to array
        // Home
        navDrawerItem.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        // Find People
        navDrawerItem.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));


        // Recycle the typed array
        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        // setting the nav drawer list adapter
        adapter = new NavDrawerListAdapter(getApplicationContext(),
                navDrawerItem);
        mDrawerList.setAdapter(adapter);

        // enabling action bar app icon and behaving it as toggle button
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer, //nav menu toggle icon
                R.string.app_name, // nav drawer open - description for accessibility
                R.string.app_name // nav drawer close - description for accessibility
        ) {
            public void onDrawerClosed(View view) {
                getSupportActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                supportInvalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getSupportActionBar().setTitle(mDrawerTitle);
                // calling onPrepareOptionsMenu() to hide action bar icons
                supportInvalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            // on first time display view for first nav item
            displayView(0);
        }
    }

activity_main_drawer.xml中的代码:

小智.. 5

如文档中所述,DrawerLayout必须是布局的根视图.

删除LinearLayout并让DrawerLayout成为根视图.