Slide-in Menu not showing

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Mobile

Android

Eclipse

I'm following the steps shown in this video:
http://www.youtube.com/watch?v=YeR7McJIltk[^]


so i created these three files as done in the video:

1-FlyOutContainer.java

package com.example.FluOutexample.view.viewgroup;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.LinearLayout;

public class FlyOutContainer extends LinearLayout{
   private View menu;
   private View content;
	
   //Constants
   protected static final int menuMargin=150;
    	
   public enum MenuState{
      CLOSED,OPEN
   };
          
   //Position Informations attributes
   protected int currentContentOffset=0;
   protected MenuState menucurrentState=MenuState.CLOSED;
          
   public FlyOutContainer(Context context, AttributeSet att,int deffStyle){
      super(context,att,deffStyle); 
   }
   public FlyOutContainer(Context context, AttributeSet att){
      super(context,att); 
   } 

   public FlyOutContainer(Context context){
      super(context); 
   }
          
   @Override
   public void onAttachedToWindow(){
      super.onAttachedToWindow();
      this.menu=this.getChildAt(0);
      this.content=this.getChildAt(1);
      this.menu.setVisibility(View.GONE);
   }
          
   @Override
   protected void onLayout(boolean changed,int top,int bottom,int left,int right){
      if(changed)
      {
         this.calculateChilddimensions();
      }
      this.menu.layout(left, top, right+ menuMargin, bottom); 
        		  
      this.content.layout(left + this.currentContentOffset , top, right+ this.currentContentOffset, bottom);
   }
          
   public void toggleMenu(){
      switch(this.menucurrentState){
         case CLOSED:
        	   this.menu.setVisibility(View.VISIBLE);
        	   this.currentContentOffset  =this.getMenuWidth();
        	   this.content.offsetLeftAndRight(currentContentOffset);
        	   this.menucurrentState=MenuState.OPEN;
        	   break;
         case OPEN:
        	   this.content.offsetLeftAndRight(-currentContentOffset);
        	   this.currentContentOffset=0;
        	   this.menucurrentState=MenuState.CLOSED;
        	   this.menu.setVisibility(View.GONE);
        	   break;
      }
      this.invalidate();
   }
          
   private int getMenuWidth(){
      return this.menu.getLayoutParams().width;
   }
   public void calculateChilddimensions(){
      this.content.getLayoutParams().width=this.getWidth();
      this.content.getLayoutParams().height=this.getHeight();
      this.menu.getLayoutParams().width=this.getWidth() + menuMargin;
      this.menu.getLayoutParams().height=this.getHeight();
   }
}

2-SampleActivity.java

package com.example.sampleactivity;

import com.example.FluOutexample.view.viewgroup.FlyOutContainer;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;

public class SampleActivity extends Activity {
   FlyOutContainer root;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      //setContentView(R.layout.activity_sample);
    		
      this.root=(FlyOutContainer) this.getLayoutInflater().inflate(R.layout.activity_sample,null);
            
      this.setContentView(root);
   }
    
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.sample, menu);
      return true;
   }
    
    	
   public void toggleMenu(View v){
      this.root.toggleMenu();	
   }
}

3-sample_activity.xml

<com.example.FluOutexample.view.viewgroup.FlyOutContainer xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

        <LinearLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:removed="#FFF000" >


             <Button
            android:id="@+id/bt1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Button 1"
            android: önClick="toggleMenu" />
              <Button
            android:id="@+id/bt2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Button 2"
            android: önClick="toggleMenu" />
               <Button
            android:id="@+id/bt3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Button 3"
            android: önClick="toggleMenu" />

        </LinearLayout>

            <LinearLayout
                xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:gravity="center"
                android:removed="#FF22FF"
                android:orientation="vertical" >

        <Button
            android:id="@+id/button_Toggle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="ToggleMenu"
            android: önClick="toggleMenu" />

           <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Toggle   Menu"/>

    </LinearLayout>


</com.example.FluOutexample.view.viewgroup.FlyOutContainer>

but when i run the application nothing shows
can anyone please help?