MainActivity.java

package com.example.navigationdrawer;
 
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
 
public class MainActivity extends FragmentActivity {
    final String[] data ={"one","two","three"};
    final String[] fragments ={
            "com.example.navigationdrawer.FragmentOne",
            "com.example.navigationdrawer.FragmentTwo",
            "com.example.navigationdrawer.FragmentThree"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
         ArrayAdapter adapter = new ArrayAdapter(getActionBar().getThemedContext(), android.R.layout.simple_list_item_1, data);
 
         final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
         final ListView navList = (ListView) findViewById(R.id.drawer);
         navList.setAdapter(adapter);
         navList.setOnItemClickListener(new OnItemClickListener(){
                 @Override
                 public void onItemClick(AdapterView<?> parent, View view, final int pos,long id){
                         drawer.setDrawerListener( new DrawerLayout.SimpleDrawerListener(){
                                 @Override
                                 public void onDrawerClosed(View drawerView){
                                         super.onDrawerClosed(drawerView);
                                         FragmentTransaction tx = getSupportFragmentManager().beginTransaction();
                                         tx.replace(R.id.main, Fragment.instantiate(MainActivity.this, fragments[pos]));
                                         tx.commit();
                                 }
                         });
                         drawer.closeDrawer(navList);
                 }
         });
         FragmentTransaction tx = getSupportFragmentManager().beginTransaction();
         tx.replace(R.id.main,Fragment.instantiate(MainActivity.this, fragments[0]));
         tx.commit();
    }
 
}