Android Picasso Fragment Pic from URL -

i've got problem load pic url fragment picasso. when start app it's start without errors pic not loading. app has 1 mainactivity , 3 fragments. below paste xml of mainlayout , 1 fragment class. best me scenario: when user click button on fragment three(red on image), pic load url imageview located on fragment 2 (yellow on image) above of fragment three. please help

package testowy.com.testowyfragment2;  import android.app.activity; import android.app.fragment; import android.content.context; import android.os.bundle; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.button; import android.widget.imageview;  import com.squareup.picasso.picasso;  /**  * created administrator on 2015-07-04.  */ public class klasadown extends fragment {     private klasadownlistener listener;      @override     public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {          view view = inflater.inflate(r.layout.fragmentdown, container, false);         imageview img = (imageview) view.findviewbyid(r.id.imgvv);         context c = getactivity().getapplicationcontext();         picasso.with(c).load("http://inthecheesefactory.com/uploads/source/glidepicasso/cover.jpg")                 .fit().into(img);          view.onclicklistener clicklistener = new view.onclicklistener() {              public void onclick(view v) {                     switch (v.getid()) {                         case r.id.btnmenu:                             updatetext("menu");                             setimage();                             break;                         case r.id.btnkontakt:                             updatetext("kontakt");                             break;                         default:                             break;                     }                 }              };             button btnmenu = (button) view.findviewbyid(r.id.btnmenu);             button btnkontakt = (button) view.findviewbyid(r.id.btnkontakt);              btnkontakt.setonclicklistener(clicklistener);             btnmenu.setonclicklistener(clicklistener);               return view;          }              public interface klasadownlistener {                 public void onitemselected(string txt);             }              private void updatetext(string txt) {                 listener.onitemselected(txt);             }              public void setimage() {                 imageview img = (imageview) getview().findviewbyid(r.id.imgvv);                 picasso.with(getactivity().getapplicationcontext()).load("http://inthecheesefactory.com/uploads/source/glidepicasso/cover.jpg").into(img);             }              @override             public void onattach(activity activity) {                 super.onattach(activity);                 if (activity instanceof klasadownlistener) {                     listener = (klasadownlistener) activity;                 } else {                     throw new classcastexception(activity.tostring() + " musi implementowa� interfejs: overviewfragment.overviewfragmentactivitylistener");                 }             }          }       <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">          <fragment             android:id="@+id/fragmentup"             class="testowy.com.testowyfragment2.klasaup"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:layout_weight="5">          </fragment>          <fragment             android:id="@+id/fragmentcenter"             class="testowy.com.testowyfragment2.klasacenter"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:layout_weight="3">          </fragment>          <fragment             android:id="@+id/fragmetdown"             class="testowy.com.testowyfragment2.klasadown"             android:layout_width="match_parent"             android:layout_height="match_parent"              android:layout_weight="3">          </fragment>      </linearlayout>  package testowy.com.testowyfragment2;  import android.app.fragment; import android.os.bundle; import android.support.annotation.nullable; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.textview;  /**  * created administrator on 2015-07-04.  */ public class klasacenter extends fragment {      @nullable     @override     public view oncreateview(layoutinflater inflater, viewgroup container,                              bundle savedinstancestate) {         view view = inflater                 .inflate(r.layout.fragmentcenter, container, false);         return view;     }     public void settext(string txt){         textview view = (textview) getview().findviewbyid(r.id.fragmentcentertext);         view.settext(txt);      }      }  package testowy.com.testowyfragment2;  import android.app.activity; import android.os.bundle; import android.widget.imageview;  import com.squareup.picasso.picasso;   public class mainactivity extends activity implements klasadown.klasadownlistener{      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);     }       @override     public void onitemselected(string txt) {         klasacenter fragment = (klasacenter) getfragmentmanager()                 .findfragmentbyid(r.id.fragmentcenter);          // sprawdzamy czy fragment istnieje w tej aktywno�ci         if (fragment != null && fragment.isinlayout()) {             // ustawiamy teskt fragmencie             fragment.settext(txt);             imageview img = (imageview) findviewbyid(r.id.imgv);             picasso.with(this).load("http://inthecheesefactory.com/uploads/source/glidepicasso/cover.jpg").fit().into(img);         }     }      } 

it's stupid forget add internet permission:)

<uses-permission android:name="android.permission.internet"></uses-permission> 

now ok!