有什么方法可以把它设置为关闭？以下是自动生成的代码供您理解.

import com.example.navigationdrawer.R;

import android.support.v7.app.ActionBarActivity; import android.app.Activity; import android.support.v7.app.ActionBar; import android.support.v4.app.Fragment; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.content.SharedPreferences; import android.content.res.Configuration; import android.os.Bundle; import android.preference.PreferenceManager; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast;

/**  * Fragment used for managing interactions for and presentation of a navigation  * drawer. See the <a href=  * "https://developer.android.com/design/patterns/navigation-drawer.html#Interaction"
* > design guidelines</a> for a complete explanation of the behaviors  * implemented here.  */ public class NavigationDrawerFragment extends Fragment {

    /**      * Remember the position of the selected item.   */     private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";

    /**      * Per the design guidelines,you should show the drawer on launch until the     * user manually expands it. This shared preference tracks this.     */     private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";

    /**      * A pointer to the current callbacks instance (the Activity).  
*/  private NavigationDrawerCallbacks mCallbacks;

    /**      * Helper component that ties the action bar to the navigation drawer.   */     private ActionBarDrawerToggle mDrawerToggle;

    private DrawerLayout mDrawerLayout;     private ListView mDrawerListView;   private View mFragmentContainerView;

    private int mCurrentSelectedPosition = 0;   private boolean mFromSavedInstanceState;    private boolean mUserLearnedDrawer;

    public NavigationDrawerFragment() {     }

    @Override   public void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);

        // Read in the flag indicating whether or not the user has demonstrated         // awareness of the         // drawer. See PREF_USER_LEARNED_DRAWER for details.        SharedPreferences sp = PreferenceManager
                .getDefaultSharedPreferences(getActivity());        mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER,false);

        if (savedInstanceState != null) {           mCurrentSelectedPosition = savedInstanceState
                    .getInt(STATE_SELECTED_POSITION);           mFromSavedInstanceState = true;         }

        // Select either the default item (0) or the last selected item.        selectItem(mCurrentSelectedPosition);
            }

    @Override   public void onActivityCreated(Bundle savedInstanceState) {      super.onActivityCreated(savedInstanceState);        // Indicate that this fragment would like to influence the set of       // actions in the action bar.       setHasOptionsMenu(true);    }

    @Override   public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {        mDrawerListView
= (ListView) inflater.inflate(
                R.layout.fragment_navigation_drawer,container,false);
                mDrawerListView
                .setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent,View view,int position,long id) {
                        selectItem(position);
                    }
                });         mDrawerListView.setAdapter(new ArrayAdapter<String>(getActionBar()
                .getThemedContext(),android.R.layout.simple_list_item_1,android.R.id.text1,new String[] {
                        getString(R.string.title_section1),getString(R.string.title_section2),getString(R.string.title_section3),}));        mDrawerListView.setItemChecked(mCurrentSelectedPosition,true);

        return mDrawerListView;     }


    public boolean isDrawerOpen() {         return mDrawerLayout != null
                && mDrawerLayout.isDrawerOpen(mFragmentContainerView);  }

    /**      * Users of this fragment must call this method to set up the navigation     * drawer interactions.      *   * @param fragmentId     *      The android:id of this fragment in its activity's layout.    * @param drawerLayout   *            The DrawerLayout containing this fragment's UI.    */     public void setUp(int fragmentId,DrawerLayout drawerLayout) {      mFragmentContainerView = getActivity().findViewById(fragmentId);        mDrawerLayout = drawerLayout;

        // set a custom shadow that overlays the main content when the drawer       // opens        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,GravityCompat.START);       // set up the drawer's list view with items and click listener

        ActionBar actionBar = getActionBar();       actionBar.setDisplayHomeAsUpEnabled(true);      actionBar.setHomeButtonEnabled(true);

        // ActionBarDrawerToggle ties together the the proper interactions      // between the navigation drawer and the action bar app icon.       mDrawerToggle = new ActionBarDrawerToggle(getActivity(),/* host Activity */        mDrawerLayout,/* DrawerLayout object */        R.drawable.custom_ic_drawer,/* nav drawer image to replace 'Up' caret */       R.string.navigation_drawer_open,/*
                                         * "open drawer" description for
                                         * accessibility
                                         */         R.string.navigation_drawer_close /*
                                         * "close drawer" description for
                                         * accessibility
                                         */         ) {             @Override           public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
                if (!isAdded()) {
                    return;
                }

                getActivity().supportInvalidateOptionsMenu(); // calls
                                                                // onPrepareOptionsMenu()           }

            @Override           public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
                if (!isAdded()) {
                    return;
                }

                if (!mUserLearnedDrawer) {
                    // The user manually opened the drawer; store this flag to
                    // prevent auto-showing
                    // the navigation drawer automatically in the future.
                    mUserLearnedDrawer = true;
                    SharedPreferences sp = PreferenceManager
                            .getDefaultSharedPreferences(getActivity());
                    sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER,true)
                            .commit();
                }

                getActivity().supportInvalidateOptionsMenu(); // calls
                                                                // onPrepareOptionsMenu()           }       };

        // If the user hasn't 'learned' about the drawer,open it to introduce      // them to the drawer,// per the navigation drawer design guidelines.         if (!mUserLearnedDrawer && !mFromSavedInstanceState) {          mDrawerLayout.openDrawer(mFragmentContainerView);       }

        // Defer code dependent on restoration of prevIoUs instance state.      mDrawerLayout.post(new Runnable() {             @Override           public void run() {
                mDrawerToggle.syncState();          }       });

        mDrawerLayout.setDrawerListener(mDrawerToggle);     }

    private void selectItem(int position) {         mCurrentSelectedPosition = position;        if (mDrawerListView != null) {          mDrawerListView.setItemChecked(position,true);         }       if (mDrawerLayout != null) {            mDrawerLayout.closeDrawer(mFragmentContainerView);      }       if (mCallbacks != null) {           mCallbacks.onNavigationDrawerItemSelected(position);        }   }

    @Override   public void onAttach(Activity activity) {       super.onAttach(activity);       try {           mCallbacks = (NavigationDrawerCallbacks) activity;      } catch (ClassCastException e) {            throw new ClassCastException(
                    "Activity must implement NavigationDrawerCallbacks.");      }   }

    @Override   public void onDetach() {        super.onDetach();       mCallbacks
= null;     }

    @Override   public void onSaveInstanceState(Bundle outState) {      super.onSaveInstanceState(outState);        outState.putInt(STATE_SELECTED_POSITION,mCurrentSelectedPosition);     }

    @Override   public void onConfigurationChanged(Configuration newConfig) {       super.onConfigurationChanged(newConfig);        // Forward the new configuration the drawer toggle component.       mDrawerToggle.onConfigurationChanged(newConfig);    }

    @Override   public void onCreateOptionsMenu(Menu menu,MenuInflater inflater) {         // If the drawer is open,show the global app actions in the action bar.        // See also         // showGlobalContextActionBar,which controls the top-left area of the      // action bar.      if (mDrawerLayout != null && isDrawerOpen()) {          inflater.inflate(R.menu.global,menu);          showGlobalContextActionBar();       }       super.onCreateOptionsMenu(menu,inflater);  }

    @Override   public boolean onOptionsItemSelected(MenuItem item) {       if (mDrawerToggle.onOptionsItemSelected(item)) {            return true;        }

        if (item.getItemId() == R.id.action_example) {          Toast.makeText(getActivity(),"Example action.",Toast.LENGTH_SHORT)
                    .show();            return true;        }

        return super.onOptionsItemSelected(item);   }

    /**      * Per the navigation drawer design guidelines,updates the action bar to    * show the global app 'context',rather than just what's in the current     * screen.   */     private void showGlobalContextActionBar() {         ActionBar actionBar = getActionBar();       actionBar.setDisplayShowTitleEnabled(true);         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);        actionBar.setTitle(R.string.selectStr);     }

    private ActionBar getActionBar() {      return ((ActionBarActivity) getActivity()).getSupportActionBar();   }

    /**      * Callbacks interface that all activities using this fragment must      * implement.    */     public static interface NavigationDrawerCallbacks {         /**          * Called when an item in the navigation drawer is selected.         */         void onNavigationDrawerItemSelected(int position);  } }