java - Add more views to viewPager, Android -

working in android have followed online tutorial create view pager want programmatically add text to. have created bulk of adding 4 views, when scroll between views getting same view. code follows. there way initial view page1 when scrolled page2 , forth.

edit

just clarify, have rather simplified want here, end goal each "view" different. example page 1 contains textview, page 2 contains image view, page 3 contains larger text.

page 1 = "this page 1" page 2 = image of sheep page 3 = big red text saying "bang!" 

xml

<relativelayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:background="@color/black">      <linearlayout         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:orientation="vertical" >          <android.support.v4.view.viewpager             android:id="@+id/viewpager"             android:layout_width="fill_parent"             android:layout_height="300dp" />          <imageview             android:layout_width="match_parent"             android:layout_height="wrap_content"             app:srccompat="@drawable/myimage"             android:id="@+id/imageview13" />      </linearlayout> </relativelayout> 

java

import android.content.context; import android.graphics.color; import android.os.bundle; import android.os.parcelable; import android.support.v4.view.pageradapter; import android.support.v4.view.viewpager; import android.support.v7.app.appcompatactivity; import android.view.view; import android.widget.textview;   public class testing extends appcompatactivity {     @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_testing);          viewpager vp = (viewpager) findviewbyid(r.id.viewpager);         vp.setadapter(new mypageradapter(this));     } }  class mypageradapter extends pageradapter {      private context ctx;      public mypageradapter(context context) {         ctx = context;     }      // set number of slides     @override     public int getcount() {         return 4;     }      @override     public object instantiateitem(view collection, int position) {          textview tv =  new textview(ctx);         tv.settextsize(50);         tv.settextcolor(color.white);         tv.settext("page1");         ((viewpager) collection).addview(tv);         return tv;     }      // destroy     @override     public void destroyitem(view collection, int position, object view) {         ((viewpager) collection).removeview((view) view);     }      // view object     @override     public boolean isviewfromobject(view view, object object) {         return view == object;     }      // parceable     @override     public parcelable savestate() {         return null;     }      // restore state     @override     public void restorestate(parcelable arg0, classloader arg1) {     }      //start update     @override     public void startupdate(view arg0) {     }      // finish update     @override     public void finishupdate(view arg0) {     } } 

position change when scroll page...

@override public object instantiateitem(view collection, int position) {  if(position==0){     textview tv =  new textview(ctx);     tv.settextsize(50);     tv.settextcolor(color.white);     tv.settext("page "+position);     collection.addview(tv);     return tv; }else if(position==1){    imageview iv = new imageview(ctx);    iv.setimageresource(r.mipmap.ic_launcher);    collection.addview(iv);    return iv; }else if(position==2){    textview tv =  new textview(ctx);     tv.settextsize(50);     tv.settextcolor(color.white);     tv.settext("bang");     collection.addview(tv);     return tv; }else if(position==3){    imageview iv = new imageview(ctx);    iv.setimageresource(r.mipmap.ic_launcher);    collection.addview(tv);     return iv; }