Write item in a ListView Android -

i'm developing app. in app i'm stored information in class named promo in defined 4 strings , made 4 getter , setters. made class named promotions in defined array of promo. store data in promo model i'm doing so:

 promo promo = new promo();             promo.setname("promozione");             promo.setdescription("la promozione può essere spesa");             promo.setdate("29 lug 2013");             promo.setimgurl("http://www.pensando.it/wp/wp-content/uploads/2012/11/coupon.jpg"); 

now in intent show field name in listview , when click on item of listview load intent in show details of promo. write name in listview made method in want read data array promo , display name of promotions in list item. made listadapter , pass class , array of promotions, says me should initialized array promotions. post here code i'm trying use display informations:

method loaddatafrommodel

private void loaddatafrommodel() {      lvtitle = (listview) findviewbyid(r.id.lvtitle);      final promotions[] promotions;      listadapter latitle = new listadapter(archiveactivity2.class, promotions);     lvtitle.setadapter(latitle);      lvtitle.setonclicklistener(new adapterview.onitemclicklistener() {      });   } 

listadapter.java

import android.content.context; import android.widget.arrayadapter;  import it.bitmama.interactv.r; import it.bitmama.interactv.model.promotions;  public class listadapter extends arrayadapter<promotions> {     public  listadapter(context context, promotions[] promotions) {         super(context, r.layout.list_item, r.id.tvtitle, promotions);     } } 

i post 2 class i'm using models:

promo.java

public class promo {     string name;     string description;     string imgurl;     string date;      @override     public string tostring() {         return name.tostring();     }      public string getname() {         return name;     }      public void setname(string name) {         this.name = name;     }      public string getdescription() {         return description;     }      public void setdescription(string description) {         this.description = description;     }      public string getimgurl() {         return imgurl;     }      public void setimgurl(string imgurl) {         this.imgurl = imgurl;     }      public string getdate() {         return date;     }      public void setdate(string date) {         this.date = date;     } } 

promotions.java

public class promotions {     public promo[] promotions; } 

now hope know what's i'm trying do, need display correctly informations. thank suggestion

1. create adapter:

   private arrayadapter madapter;

   private void loaddatafrommodel() {

   lvtitle = (listview) findviewbyid(r.id.lvtitle); arraylist<promo> list = new arraylist<promo>();   arrayadapter madapter = new arrayadapter(getcontext() , r.id.lvtitle, list); lvtitle.setadapter(madapter);  lvtitle.setonitemclicklistener(new adapterview.onitemclicklistener() {     @override     public void onitemclick(adapterview<?> parent, view view, int position, long id) {      } }); 

   }

2. modify members of adapter:

   void onnewmember(promo promo) {

   madapter.add(promo); 

   }

you may set members of array list before injection in loaddatafrommodel()

promo promo = new promo(); ... set properties wanted list.add(promo)