android - Duplicated elements when dynamic loading them in horizontal scrollview -

i have main.xml have listview. row of listview defined in row.xml this:

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" >  <linearlayout     android:layout_width="match_parent"     android:layout_height="80dp"     android:orientation="horizontal" >      <imageview         android:id="@+id/image"         android:layout_width="0dp"         android:layout_height="wrap_content"         android:layout_weight="60"         android:contentdescription="@string/app_name"         android:src="@drawable/ic_launcher" />      <textview         android:id="@+id/text"         android:layout_width="0dp"         android:layout_height="match_parent"         android:layout_weight="40"         android:gravity="center"         android:textcolor="#ff0000"         android:text="sdfasdf" /> </linearlayout>  <horizontalscrollview     android:layout_width="match_parent"     android:background="#ffda35"     android:layout_height="70dp" >      <linearlayout         android:id="@+id/ll"         android:layout_width="wrap_content"         android:layout_height="match_parent"         android:orientation="horizontal" >     </linearlayout> </horizontalscrollview> 

as can see, there horizontal scroll view in every listview row , when listview generated row, want dynamic loading scrollview children in it. scrollview child defined in scrollview_child.xml:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="60dp" android:layout_height="match_parent" android:background="@null" >  <relativelayout     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:layout_gravity="center"     android:layout_marginbottom="5dp"     android:layout_marginleft="5dp"     android:layout_marginright="5dp"     android:layout_margintop="5dp"     android:background="#ffffff" >      <imageview         android:id="@+id/img"         android:layout_width="40dp"         android:layout_height="40dp"         android:contentdescription="@string/app_name"         android:gravity="center"         android:src="@drawable/ic_launcher" />      <textview         android:id="@+id/name"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:layout_alignleft="@+id/img"         android:layout_alignright="@+id/img"         android:layout_below="@+id/img"         android:gravity="center" /> </relativelayout> 

my java codes: mainactivity.java

public class mainactivity extends actionbaractivity {  listview list; private arraylist<string> people; private arraylist<string> school;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      list = (listview)findviewbyid(r.id.list);      createlists();     listviewadapter listadapter = new listviewadapter(this, people, school);     list.setadapter(listadapter);  }  public void createlists() {     people = new arraylist<string>();     people.add("bob");     people.add("peter");     people.add("anna");     people.add("jane");      school = new arraylist<string>();     school.add("a");     school.add("b");     school.add("c");     school.add("d");     school.add("e"); }    

}

listviewadapter.java:

public class listviewadapter extends baseadapter{  private arraylist<string> people; private arraylist<string> school; mainactivity activity; public listviewadapter(mainactivity activity, arraylist<string> people, arraylist<string> school) {     this.people = people;     this.school = school;     this.activity = activity; }  private static class viewholder {     private textview catename;     private imageview cateimage;     private linearlayout ll;     private viewholder (view v) {         cateimage = (imageview)v.findviewbyid(r.id.image);         catename = (textview)v.findviewbyid(r.id.text);         ll = (linearlayout)v.findviewbyid(r.id.ll);     } }  @override public int getcount() {     // todo auto-generated method stub     return people.size(); }  @override public object getitem(int position) {     return people.get(position); }  @override public long getitemid(int position) {     return people.indexof(getitem(position)); }  @suppresslint("inlinedapi") @override public view getview(int position, view convertview, viewgroup parent) {      log.i("run", "run");     viewholder holder = null;     layoutinflater infllater  = (layoutinflater) activity.getsystemservice(activity.layout_inflater_service);      if (convertview == null) {         convertview = infllater.inflate(r.layout.home_page_list_odd_item, parent, false);         holder = new viewholder(convertview);         convertview.settag(holder);       } else {          holder = (viewholder)convertview.gettag();     }      // 1 row element     holder.cateimage.setimageresource(r.drawable.defaultavatar);     holder.catename.settext(people.get(position));      log.i("size: ", "school: " + school.size() + "people: " + people.size());      // set data scroll view     (int = 0; i<school.size(); i++) {         layoutinflater inflater = (layoutinflater) this.activity.getsystemservice(context.layout_inflater_service);         view v = inflater.inflate(r.layout.home_page_scroll_list_item, parent, false);          textview schoolname = (textview) v.findviewbyid(r.id.name);         imageview schoolimage = (imageview)v.findviewbyid(r.id.img);         relativelayout rl = (relativelayout)v.findviewbyid(r.id.rl);          schoolname.settext(school.get(i));         schoolimage.setimageresource(r.drawable.ic_launcher);         rl.setbackgroundresource(r.drawable.bg_deal);         holder.ll.addview(v);     }     return convertview; } 

}

my problem children in horizontal scrollview duplicated because method getview() calling multi time. result this: http://i.imgur.com/70tte3i.png

please help! sorry english badly!