android - Setting title for listview -

i have android app should parse data php web page , display them 2 listview, each listview display values of string

my problem how set titles these listviews?

public class mainactivity extends activity {   @override  protected void oncreate(bundle savedinstancestate)  {  super.oncreate(savedinstancestate);  setcontentview(r.layout.activity_main);  new getdata().execute();  }   private class getdata extends asynctask<void, void, void>   {   progressdialog progressdialog;   string data;   list<string> r = new arraylist<string>();   list<string> r2 = new arraylist<string>();   arrayadapter<string>adapter=new arrayadapter<string>(getapplicationcontext(), android.r.layout.simple_list_item_1,r);       arrayadapter<string>adapter2=new arrayadapter<string>(getapplicationcontext(), android.r.layout.simple_list_item_1,r2);   listview list =  (listview)findviewbyid(r.id.right);   listview list2= (listview)findviewbyid(r.id.left);    public   getdata()  {  }   @override  protected void onpreexecute()  {  super.onpreexecute();  list.setbackgroundcolor(color.background_dark);  list2.setbackgroundcolor(color.background_dark);  progressdialog = new progressdialog(mainactivity.this);  progressdialog.setcancelable(false);  if (!progressdialog.isshowing())   {  progressdialog.show();   }          }   @override  protected void doinbackground(void... params)   {  try   {  defaulthttpclient client = new defaulthttpclient();  httpget request = new httpget("http://192.168.1.97:89/derdeery/zaki.php");  httpresponse response = client.execute(request);  httpentity entity=response.getentity();  data=entityutils.tostring(entity);  jsonarray json=new jsonarray(data);  log.e("string", data);   }   catch(exception e)  {}  return null;   } @override protected void onpostexecute(void result) { super.onpostexecute(result); try { if (progressdialog.isshowing())  { progressdialog.dismiss(); } jsonarray json=new jsonarray(data); for(int i=0;i<json.length(); i++) { string name=obj.getstring("part_name"); string id = obj.getstring("part_id") ; log.e("name", name);  r.add(id ); r2.add(name); } list.setadapter(adapter); list2.setadapter(adapter2); }  catch (jsonexception e)  {  // todo auto-generated catch block  e.printstacktrace();  }  }}  } 

activity_main.xml

 <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:orientation="vertical">    <listview     android:id="@+id/left"     android:layout_width="0dp"     android:layout_height="match_parent"     android:layout_margin="2dp"     android:layout_weight="0.52"/>     <listview     android:id="@+id/right"     android:layout_width="0dp"     android:layout_height="match_parent"     android:layout_margin="2dp"     android:layout_weight=".25" />      </linearlayout> 

you can create textview , add header view of listview

textview titletext = new textview(this); titletext.settext("title listview 1"); listview.addheaderview(titletext);