android - Why image is not displayed into list view? -

this code image not displayed list view how can solve problem?i set uri value bitmap.so problem?changed array , error solved bt still image not displayed list view. mainactivity.java

public class mainactivity extends activity {     listview lv;     context context;      arraylist prgmname;     bitmap bitmap;     //bitmap=getbitmapfromurl("http://content6.flixster.com/movie/11/17/75/11177548_pro.jpg");      public static string [] prgmnamelist={"let c","c++","java","jsp","microsoft .net","android","php","jquery","javascript"};     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         bitmap=getbitmapfromurl("http://content6.flixster.com/movie/11/17/75/11177548_pro.jpg");         context=this;         bitmap  [] prgmimages ={bitmap,bitmap,bitmap,bitmap,bitmap,bitmap,bitmap,bitmap,bitmap};         lv=(listview) findviewbyid(r.id.listview);         lv.setadapter(new customadapter(this, prgmnamelist,prgmimages));      }       @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }     private bitmap getbitmapfromurl(string src) {         // todo auto-generated method stub         try {              url url =new url(src);             httpurlconnection connection = (httpurlconnection) url.openconnection();             connection.setdoinput(true);             connection.connect();             inputstream input=connection.getinputstream();             bitmap mybibitmap=bitmapfactory.decodestream(input);             return mybibitmap;            } catch (exception e) {             // todo: handle exception            e.printstacktrace();            return null;          }       }  } 

customadapter.java

public class customadapter extends baseadapter{     string [] result;     context context;  bitmap[] imageid;       private static layoutinflater inflater=null;     public customadapter(mainactivity mainactivity, string[] prgmnamelist, bitmap[] prgmimages) {         // todo auto-generated constructor stub         result=prgmnamelist;         context=mainactivity;         imageid=prgmimages;          inflater = ( layoutinflater )context.                  getsystemservice(context.layout_inflater_service);     }     @override     public int getcount() {         // todo auto-generated method stub         return result.length;     }      @override     public object getitem(int position) {         // todo auto-generated method stub         return position;     }      @override     public long getitemid(int position) {         // todo auto-generated method stub         return position;     }      public class holder     {         textview tv;         imageview img;     }     @override     public view getview(final int position, view convertview, viewgroup parent) {         // todo auto-generated method stub         holder holder=new holder();         view rowview;                      rowview = inflater.inflate(r.layout.list_item, null);              holder.tv=(textview) rowview.findviewbyid(r.id.textview1);              holder.img=(imageview) rowview.findviewbyid(r.id.imageview1);        //         holder.tv.settext(result[position]); //         holder.img.setimagebitmap(imageid[position]);                       if(result != null && result.length > position)              {                 holder.tv.settext(result[position]);              }               if(imageid != null && imageid.length > 0)              {                 holder.img.setimagebitmap(imageid[0]);               }               rowview.setonclicklistener(new onclicklistener() {                      @override             public void onclick(view v) {                 // todo auto-generated method stub                 toast.maketext(context, "you clicked "+result[position], toast.length_long).show();             }         });           return rowview;     }  } 

activity_main.xml

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".mainactivity" >      <textview         android:id="@+id/textview1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:textsize="25dp"         android:textstyle="bold"         android:text=" theaters..." />      <listview         android:id="@+id/listview"         android:layout_width="fill_parent"         android:layout_height="fill_parent" >     </listview>     </linearlayout> 

list_item.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="horizontal" >      <imageview         android:id="@+id/imageview1"         android:layout_gravity="center"         android:layout_width="48dp"         android:layout_height="48dp"         android:src="@drawable/ic_launcher" />      <textview         android:id="@+id/textview1"         android:layout_gravity="center"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:textsize="25dp"         android:text="textview" />   </linearlayout> 

it happens because before bitmaps loaded , saved array, call adapter. downloading images takes time , adapter not waiting them. see example, using image loader: http://www.androidhive.info/2012/02/android-custom-listview-with-image-and-text/