ListView not showing the data
===

I've followed [this][1] tutorial and I am not able to figure out why the emulator is not showing the items.

Here's my ListActivity:


    public class MyListActivity extends ListActivity {

	private Timer myTimer;
	private boolean SetTimerOnResume=false;

	private ArrayList<HashMap<String,String>> chat=new ArrayList<HashMap<String,String>>();
	
	private LazyAdapter adapter;
	
	static final String Key_username="username_key";
	static final String Key_email="email_key";
	static final String Key_messageText="messageText_key";
	static final String Key_messageDate="messageDate_key";
	
		 @Override
	      public void onCreate(Bundle savedInstance) {
			 super.onCreate(savedInstance);
		        setContentView(R.layout.lists);
		        
		        HttpRequest httpRequest=new HttpRequest("ReturnNewChatsToAdmin", "admin", "You" , "zawalarsa", "muazzamalii@hotmail.com");  
		        String data=httpRequest.ExecuteRequest();
		        httpRequest.ExecuteRequest();

	            try {
	                
	            	 JSONArray jsonarr=new JSONArray(data);
	              	
	      	    	for(int i=0;i<jsonarr.length();i++)
	      	    	{	
	      	    		HashMap<String,String> hashMap=new HashMap<String,String>();
	      	    		
	      	    		hashMap.put(MyListActivity.Key_username, jsonarr.getJSONObject(i).getString("username"));
	      		    	hashMap.put(MyListActivity.Key_email, jsonarr.getJSONObject(i).getString("email"));
	      		    	hashMap.put(MyListActivity.Key_messageText, jsonarr.getJSONObject(i).getString("chatText"));
	      		    	hashMap.put(MyListActivity.Key_messageDate, jsonarr.getJSONObject(i).getString("chatDate"));

	      		    	chat.add(hashMap);
	      		    	
	      		    }
	      	    	
	      	    ListView lv=(ListView)findViewById(android.R.id.list);
	      	    adapter=new LazyAdapter(this,chat);
	      	    lv.setAdapter(adapter);
	      	    
	      	  lv.setOnItemClickListener(new OnItemClickListener() {

				@Override
				public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
					
				}
	          });
	      
	            }
	            catch(JSONException e)
	            {
	            }
		 }
		 
	}
	



and here's the lazyadapter as shown in the tutorial:

package com.app.ServerClient;



public class LazyAdapter extends BaseAdapter{
	
	private Activity activity;
	private ArrayList<HashMap<String,String>> hashmap;
	private static LayoutInflater inflater=null;
	
	public LazyAdapter(Activity activity,ArrayList<HashMap<String,String>> hashMaps)
	{
		this.activity=activity;
		this.hashmap=hashMaps;
		LazyAdapter.inflater=(LayoutInflater)this.activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	}

	@Override
	public int getCount() {
		return hashmap.size();
	}

	@Override
	public Object getItem(int position) {
		return position;
	}

	@Override
	public long getItemId(int position) {
		return position;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {

		View view=convertView;
		
		if(convertView==null)
			view=inflater.inflate(R.layout.list_layout,null);
		
		TextView username=(TextView)view.findViewById(R.id.username);
		TextView email=(TextView)view.findViewById(R.id.email);
		TextView messageDate=(TextView)view.findViewById(R.id.chatdate);
		TextView messagetext=(TextView)view.findViewById(R.id.messagetext);
		
		HashMap<String,String> map=new HashMap<String, String>();
		hashmap.get(position);
		
		username.setText(map.get(MyListActivity.Key_username));
		email.setText(map.get(MyListActivity.Key_email));
		messageDate.setText(map.get(MyListActivity.Key_messageDate));
		messagetext.setText(map.get(MyListActivity.Key_messageText));
		
		return view;
	}
	
	
    }

 
and here's my list_item.xml:

    <?xml version="1.0" encoding="utf-8"?>


    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:paddingLeft="16dp"
    android:paddingRight="16dp" >


     <LinearLayout
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:orientation="horizontal" >

     <TextView
         android:id="@+id/username"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_weight="11.74"
         android:textColor="#FFFF00"
         android:textSize="17sp"
         android:textStyle="bold"
          />

     <TextView
         android:id="@+id/chatdate"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_weight="11.74"
         android:textColor="#FFFF00"
         android:textSize="17sp"
         android:textStyle="bold"
         />

     </LinearLayout>

     <TextView
     android:id="@+id/email"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
      />

     <TextView android:id="@+id/message" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"
     android:text="@string/Message"
     android:textStyle="bold"/>
  
    <TextView android:id="@+id/messagetext" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"
     />

    </LinearLayout>

Here's the output:

![][2]


  [1]: http://www.androidhive.info/2012/02/android-custom-listview-with-image-and-text/
  [2]: http://i.stack.imgur.com/64swT.png