По нажатию не открывается МЕНЮ

package sлджтл;
 
import android.app.Activity;
import android.content.Context;
import android.content.pm.FeatureInfo;
import android.os.Bundle;
import android.support.annotation.MenuRes;
import android.support.v4.app.FragmentManager;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
 
 
 
public class MainActivity extends AppCompatActivity
        implements NavigationDrawerFragment.NavigationDrawerCallbacks {
 
    /**
     * Fragment managing the behaviors, interactions and presentation of the navigation drawer.
     */
    private NavigationDrawerFragment mNavigationDrawerFragment;
    FragmentManager fragmentManager;
    /**
     * Used to store the last screen title. For use in {@link #restoreActionBar()}.
     */
    private CharSequence mTitle;
    public Menu mMenu;
    private GetmessageAt GetmessageAt_;
    private GlobalClass GlobalClasses;
    private Context ctx;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ctx = this;
        GlobalClasses = ((GlobalClass) GlobalClass.GetMyApplication());
        mNavigationDrawerFragment = (NavigationDrawerFragment)
                getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
        mTitle = getTitle();
 
        // Set up the drawer.
        mNavigationDrawerFragment.setUp(
                R.id.navigation_drawer,
                (DrawerLayout) findViewById(R.id.drawer_layout));
 
    }
 
    @Override
    public void onNavigationDrawerItemSelected(final int position) {
        // update the main content by replacing fragments
   fragmentManager = getSupportFragmentManager();
///...
///...
///...
///...
 
  }
 
 
 
    public void restoreActionBar() {
        ActionBar actionBar = getSupportActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        actionBar.setDisplayShowTitleEnabled(true);
        actionBar.setTitle(mTitle);
    }
 
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if (!mNavigationDrawerFragment.isDrawerOpen()) {
            // Only show items in the action bar relevant to this screen
            // if the drawer is not showing. Otherwise, let the drawer
            // decide what to show in the action bar.
            getMenuInflater().inflate(R.menu.main, menu);
            restoreActionBar();
            mMenu = menu;
            return true;
        }
 
 
        return super.onCreateOptionsMenu(menu);
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
 
 
        if (id ==R.id.MenuIcon){
            Log.i("MyLogIlnar", "OpenMenu");         
          ((AppCompatActivity) MainActivity.this).openOptionsMenu(); // не работает
            return true;
        }
 
   
        return super.onOptionsItemSelected(item);
    }
 
 
}