android - ViewPager does not show content -

i trying create viewpager shows list of imageviews. able implement pager , adapter properly, , works expected on swiping. however, not show content of imageview properly, i.e. image itself. if images there, transparent. 1 image visible out of whole lot.

here code-

imagepageradapter.java

public class imagepageradapter extends pageradapter {     layoutinflater inflater;     list<imageview> views = new arraylist<>();     boolean[] done = {false,false,false,false,false};     itemdetailfragment idf;      public imagepageradapter(itemdetailfragment idf,             layoutinflater inflater) {         this.idf = idf;         this.inflater = inflater;         (int = 0; < getcount(); i++) {             imageview iv = new imageview(idf.getactivity());             iv.setimageresource(r.drawable.light_grey_background);             views.add(iv);         }     }      public imagepageradapter(layoutinflater inflater) {         this.inflater = inflater;         (int = 0; < getcount(); i++) {             imageview iv = new imageview(inflater.getcontext());             iv.setimageresource(r.drawable.light_grey_background);             views.add(iv);         }     }      @override     public object instantiateitem(viewgroup container, int position) {         if (done[position]) {             return views.get(position);         }         imageview v = views.get(position);         views.set(position, v);         ((viewpager) container).addview(v);         done[position] = true;         return v;     }      @override     public void destroyitem(viewgroup container, int position, object object) {     }      @override     public int getcount() {         return 5;     }      @override     public boolean isviewfromobject(view view, object object) {         return true;     }  } 

itemdetailfragment.java : set adapter.

public class itemdetailfragment extends fragment { viewpager pager; imagepageradapter adapter; @override public view oncreateview(layoutinflater inflater, viewgroup container,     bundle savedinstancestate) {     view rootview = inflater.inflate(r.layout.fragment_item_detail,         container, false);     pager = (viewpager) rootview.findviewbyid(r.id.pager);     adapter = new imagepageradaper(this, inflater);     pager.setadapter(adapter); } 

fragment_item_detail.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:padding="16dp"     tools:context="com.trial.piclist.itemdetailfragment" >      <android.support.v4.view.viewpager xmlns:android="http://schemas.android.com/apk/res/android"         android:id="@+id/pager"         android:layout_width="match_parent"         android:layout_height="200dip" >      </android.support.v4.view.viewpager>      <tablerow         android:id="@+id/tablerow1"         android:layout_width="match_parent"         android:layout_height="wrap_content" >          <textview             android:id="@+id/item_title"             style="?android:attr/textappearancelarge"             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:text="@string/hello"             android:textisselectable="true" />          <space             android:layout_width="wrap_content"             android:layout_height="match_parent"             android:layout_weight="1" />          <include             android:layout_width="wrap_content"             android:layout_height="wrap_content"             layout="@layout/controls_layout" />     </tablerow>      <scrollview         android:id="@+id/descscrollview"         android:layout_width="match_parent"         android:layout_height="0dip"         android:layout_weight="1" >          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:orientation="vertical" >              <textview                 android:id="@+id/item_detail"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="@string/hello" />         </linearlayout>     </scrollview>  </linearlayout> 

please help. thanks.

use:

public class imagepageradapter extends pageradapter {  layoutinflater inflater; activity act; int count; public viewpageradapter(activity a, int c) {     act = a;             count=c;     inflater = (layoutinflater) act             .getsystemservice(context.layout_inflater_service); }  @override public int getcount() {     return count; }  @override public object instantiateitem(view collection, int position) {             view v1 = inflater.inflate(r.layout.element_image, null);         imageview image = (imageview) v1                 .findviewbyid(r.id.about_image);         image.setimageresource(r.drawable.light_grey_background);         ((viewpager) collection).addview(v1, 0);      return v1; }  @override public void destroyitem(view arg0, int arg1, object arg2) {     ((viewpager) arg0).removeview((view) arg2); }  @override public boolean isviewfromobject(view arg0, object arg1) {     return arg0 == ((view) arg1); }  @override public parcelable savestate() {     return null; } } 

make layout element_image.xml:

<?xml version="1.0" encoding="utf-8"?> <imageview xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/smv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" /> 

replace

adapter = new imagepageradaper(this, inflater); 

with

adapter = new imagepageradaper(getactivity(), count_of_images);