Действие на кнопку физическую кнопку Меню

import android.app.Activity;
import android.os.Bundle;
 
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
 
import android.widget.Button;
import android.widget.Toast;
 
public class ExampleActivity extends Activity {
    //action id
    private static final int ID_UP     = 1;
    private static final int ID_DOWN   = 2;
    private static final int ID_SEARCH = 3;
    private static final int ID_INFO   = 4;
    Button btn2;
        
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        setContentView(R.layout.main);
 
        ActionItem nextItem     = new ActionItem(ID_DOWN, "Next", getResources().getDrawable(R.drawable.menu_down_arrow));
        ActionItem prevItem     = new ActionItem(ID_UP, "Prev", getResources().getDrawable(R.drawable.menu_up_arrow));
        ActionItem searchItem   = new ActionItem(ID_SEARCH, "Find", getResources().getDrawable(R.drawable.menu_search));
        ActionItem infoItem     = new ActionItem(ID_INFO, "Info", getResources().getDrawable(R.drawable.menu_info));
        
        //use setSticky(true) to disable QuickAction dialog being dismissed after an item is clicked
        prevItem.setSticky(true);
        nextItem.setSticky(true);
        
        //create QuickAction. Use QuickAction.VERTICAL or QuickAction.HORIZONTAL param to define layout 
        //orientation
        final QuickAction quickAction = new QuickAction(this, QuickAction.VERTICAL);
        
        //add action items into QuickAction
        quickAction.addActionItem(nextItem);
        quickAction.addActionItem(prevItem);
        quickAction.addActionItem(searchItem);
        quickAction.addActionItem(infoItem);
        
        //Set listener for action item clicked
        quickAction.setOnActionItemClickListener(new QuickAction.OnActionItemClickListener() {          
            @Override
            public void onItemClick(QuickAction source, int pos, int actionId) {                
                ActionItem actionItem = quickAction.getActionItem(pos);
                 
                //here we can filter which action item was clicked with pos or actionId parameter
                if (actionId == ID_SEARCH) {
                    Toast.makeText(getApplicationContext(), "Let's do some search action", Toast.LENGTH_SHORT).show();
                } else if (actionId == ID_INFO) {
                    Toast.makeText(getApplicationContext(), "I have no info this time", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), actionItem.getTitle() + " selected", Toast.LENGTH_SHORT).show();
                }
            }
        });
        
        //set listnener for on dismiss event, this listener will be called only if QuickAction dialog was dismissed
        //by clicking the area outside the dialog.
        quickAction.setOnDismissListener(new QuickAction.OnDismissListener() {          
            @Override
            public void onDismiss() {
                Toast.makeText(getApplicationContext(), "Dismissed", Toast.LENGTH_SHORT).show();
            }
        });
 
        btn2 = (Button) this.findViewById(R.id.btn2);
        btn2.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                quickAction.show(v);
            }
        });             
                
    }
    
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_MENU) {
                              // здесь хочу выполнить quickAction.show(v);
            return true;
        }
        return super.onKeyUp(keyCode, event);
    }
}