Как реализовать навигационный ящик с фрагментами мастер-детали

я получил образец навигационного ящика с этого сайта:http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/

и основная деталь отсюда:http://wptrafficanalyzer.in/blog/itemclick-handler-for-listfragment-in-android/

ошибка LogCat oncreateview (inflac ....) представление не может быть создано

я должен попробовать это

    //the main activiry as Activity:

    package in.wptrafficanalyzer.listfragmentitemclick;

import in.wptrafficanalyzer.listfragmentitemclick.adapter.NavDrawerListAdapter;
import in.wptrafficanalyzer.listfragmentitemclick.model.NavDrawerItem;

import java.util.ArrayList;

import in.wptrafficanalyzer.listfragmentitemclick.R;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.app.ListFragment;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

public class MainActivity extends Activity implements CountryListFragment.ListFragmentItemClickListener {



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

    // nav drawer title
    private CharSequence mDrawerTitle;

    // used to store app title
    private CharSequence mTitle;

    // slide menu items
    private String[] navMenuTitles;
    private TypedArray navMenuIcons;

    private ArrayList navDrawerItems;
    private NavDrawerListAdapter adapter;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        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);

        navDrawerItems = new ArrayList();

        // adding nav drawer items to array
        // Home
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        // Find People
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        // Photos
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        // Communities, Will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true, "22"));
        // Pages
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        // What's hot, We  will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1), true, "50+"));


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

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

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

        // enabling action bar app icon and behaving it as toggle button
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().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) {
                getActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                invalidateOptionsMenu();
            }

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

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

    /**
     * Slide menu item click listener
     * */
    private class SlideMenuClickListener implements
            ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView parent, View view, int position,
                long id) {
            // display view for selected nav drawer item
            displayView(position);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // toggle nav drawer on selecting action bar app icon/title
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        // Handle action bar actions click
        switch (item.getItemId()) {
        case R.id.action_settings:
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    /***
     * Called when invalidateOptionsMenu() is triggered
     */
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        // if nav drawer is opened, hide the action items
        boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
        menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
        return super.onPrepareOptionsMenu(menu);
    }

    /**
     * Diplaying fragment view for selected nav drawer list item
     * */
    private void displayView(int position) {
        // update the main content by replacing fragments
        ListFragment fragment = null;
        switch (position) {
        case 0:
            //fragment = new HomeFragment();
            break;
        case 1:
            fragment = new CountryListFragment();
            break;
        case 2:
            //fragment = new PhotosFragment();
            break;
        case 3:
           // fragment = new CommunityFragment();
            break;
        case 4:
            //fragment = new PagesFragment();
            break;
        case 5:
            //fragment = new WhatsHotFragment();
            break;

        default:
            break;
        }

        if (fragment != null) {
            FragmentManager fragmentManager = getFragmentManager();
            fragmentManager.beginTransaction()
                    .replace(R.id.country_list_fragment, fragment).commit();

            // update selected item and title, then close the drawer
            mDrawerList.setItemChecked(position, true);
            mDrawerList.setSelection(position);
            setTitle(navMenuTitles[position]);
            mDrawerLayout.closeDrawer(mDrawerList);
        } else {
            // error in creating fragment
            Log.e("MainActivity", "Error in creating fragment");
        }
    }

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

    /**
     * When using the ActionBarDrawerToggle, you must call it during
     * onPostCreate() and onConfigurationChanged()...
     */

    @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 toggls
        mDrawerToggle.onConfigurationChanged(newConfig);
    }
    /** Called when the activity is first created. */


    @Override
    public void onListFragmentItemClick(int position) {

        /** Getting the orientation ( Landscape or Portrait ) of the screen */
        int orientation = getResources().getConfiguration().orientation;


        /** Landscape Mode */
        if(orientation == Configuration.ORIENTATION_LANDSCAPE ){
            /** Getting the fragment manager for fragment related operations */
            FragmentManager fragmentManager = getFragmentManager();

            /** Getting the fragmenttransaction object, which can be used to add, remove or replace a fragment */
            FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

            /** Getting the existing detailed fragment object, if it already exists. 
             *  The fragment object is retrieved by its tag name 
             * */
            Fragment prevFrag = fragmentManager.findFragmentByTag("in.wptrafficanalyzer.country.details");

            /** Remove the existing detailed fragment object if it exists */
            if(prevFrag!=null)
                fragmentTransaction.remove(prevFrag);           

            /** Instantiating the fragment CountryDetailsFragment */
            CountryDetailsFragment fragment = new CountryDetailsFragment();

            /** Creating a bundle object to pass the data(the clicked item's position) from the activity to the fragment */ 
            Bundle b = new Bundle();

            /** Setting the data to the bundle object */
            b.putInt("position", position);

            /** Setting the bundle object to the fragment */
            fragment.setArguments(b);           

            /** Adding the fragment to the fragment transaction */
            fragmentTransaction.add(R.id.detail_fragment_container, fragment,"in.wptrafficanalyzer.country.details");

            /** Adding this transaction to backstack */
            fragmentTransaction.addToBackStack(null);

            /** Making this transaction in effect */
            fragmentTransaction.commit();

        }else{          /** Portrait Mode or Square mode */
            /** Creating an intent object to start the CountryDetailsActivity */
            Intent intent = new Intent("in.wptrafficanalyzer.CountryDetailsActivity");

            /** Setting data ( the clicked item's position ) to this intent */
            intent.putExtra("position", position);

            /** Starting the activity by passing the implicit intent */
            startActivity(intent);          
        }
    }
}

CountryListFragment как список-фрагмент:

package in.wptrafficanalyzer.listfragmentitemclick;

import android.app.Activity;
import android.app.ListFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class CountryListFragment extends ListFragment{

    /** List of countries to be displayed in the ListFragment */

    ListFragmentItemClickListener ifaceItemClickListener;   

    /** An interface for defining the callback method */
    public interface ListFragmentItemClickListener {
        /** This method will be invoked when an item in the ListFragment is clicked */
        void onListFragmentItemClick(int position);
    }   

    /** A callback function, executed when this fragment is attached to an activity */  
    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        try{
            /** This statement ensures that the hosting activity implements ListFragmentItemClickListener */
            ifaceItemClickListener = (ListFragmentItemClickListener) activity;          
        }catch(Exception e){
            Toast.makeText(activity.getBaseContext(), "Exception",Toast.LENGTH_SHORT).show();
        }
    }

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

        /** Data source for the ListFragment */
        ArrayAdapter adapter = new ArrayAdapter(inflater.getContext(), android.R.layout.simple_list_item_1, Country.name);

        /** Setting the data source to the ListFragment */
        setListAdapter(adapter);    



        return super.onCreateView(inflater, container, savedInstanceState);
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {    

        /** Invokes the implementation of the method istFragmentItemClick          in     the hosting activity */
        ifaceItemClickListener.onListFragmentItemClick(position);

    }

}

макет основной в макете папки

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макет основной в папке layout-land

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