Sliding menu problem (jfeinstein lib)

public class MainActivity extends Activity {
	private SlidingMenu slidingMenu ;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		slidingMenu = new SlidingMenu(this);
        slidingMenu.setMode(SlidingMenu.LEFT);
        slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
        slidingMenu.setShadowWidthRes(R.dimen.slidingmenu_shadow_width);
        slidingMenu.setShadowDrawable(R.drawable.slidingmenu_shadow);
        slidingMenu.setBehindOffsetRes(R.dimen.slidingmenu_offset);
        slidingMenu.setFadeDegree(0.35f);
        slidingMenu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
        slidingMenu.setMenu(R.layout.slidingmenu);
        getActionBar().setDisplayHomeAsUpEnabled(true);
	}
	
	
	@Override
    public void onBackPressed() {
        if ( slidingMenu.isMenuShowing()) {
            slidingMenu.toggle();
        }
        else {
            super.onBackPressed();
        }
    }
	
	
	@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if ( keyCode == KeyEvent.KEYCODE_MENU ) {
            slidingMenu.toggle();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
	@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            this.slidingMenu.toggle();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
            }
	}

public class SlidingMenuFragment extends Fragment implements ExpandableListView.OnChildClickListener {
	private SlidingMenu slidingMenu ;
    private ExpandableListView sectionListView;
    
    
	
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        
        List<Section> sectionList = createMenu();
                
        View view = inflater.inflate(R.layout.slidingmenu_fragment, container, false);
        this.sectionListView = (ExpandableListView) view.findViewById(R.id.slidingmenu_view);
        this.sectionListView.setGroupIndicator(null);

        SectionListAdapter sectionListAdapter = new SectionListAdapter(this.getActivity(), sectionList);
        this.sectionListView.setAdapter(sectionListAdapter); 
        this.sectionListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
              @Override
              public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
            	  
                return true;
              }
            });
        
        this.sectionListView.setOnChildClickListener(this);
        
        int count = sectionListAdapter.getGroupCount();
        for (int position = 0; position < count; position++) {
            this.sectionListView.expandGroup(position);
        }
        
        return view;
    }

   
    
    private List<Section> createMenu() {
        List<Section> sectionList = new ArrayList<Section>();

        Section oDemoSection = new Section("Demos");
        oDemoSection.addSectionItem(101,"Test", "lol");
        oDemoSection.addSectionItem(102, "Airport (AsyncTask)", "lol");
        
        Section oGeneralSection = new Section("General");
        oGeneralSection.addSectionItem(201, "Settings", "lol");
        oGeneralSection.addSectionItem(202, "Rate this app", "lol");
        oGeneralSection.addSectionItem(203, "Eula", "lol");
        oGeneralSection.addSectionItem(204, "Quit", "lol");
        
        sectionList.add(oDemoSection);
        sectionList.add(oGeneralSection);
        return sectionList;
        
    }
    
    public void toggle() {
		slidingMenu.toggle();
	}

    @Override
    public boolean onChildClick(ExpandableListView parent, View v,
            int groupPosition, int childPosition, long id) {
    	Fragment fragment=null; 	
        switch ((int)id) {
        case 101:
        	FragmentManager fragmentManager = getFragmentManager();
        	fragmentManager.beginTransaction()
			.replace(R.id.frame_container, new Net()).commit();
            break;
        case 102:
            //TODO
            break;
        case 201:
            //TODO
            break;
        case 202:
            //TODO
            break;
        case 203:
            //TODO
            break;
        case 204:
            //TODO
            break;
           
        } 
        return false;

    }}