Simple use of Android Viewpager

Package test.view.weitop;public class animactivity extends baseactivity {private  view vline;private int width = 0;private viewpager mviewpager;private  PagerTabStrip pagerTabStrip;private Button leftBtn,rightBtn;private int[]  drawableresids = {r.drawable.tip1,r.drawable.tip2};int w; @Overrideprotected  void  OnCreate (bundle saveinstance)  {super.oncreate (saveinstance); Setcontentview (r.layout.anim_layout); w  = getwindow (). Getwindowmanager (). Getdefaultdisplay (). getwidth (); Vline = findviewbyid ( R.id.line); Layoutparams lp = vline.getlayoutparams ();width = lp.width = w /  2;VLINE.SETLAYOUTPARAMS (LP), Vline.settag ("0");leftbtn =  (Button)  findviewbyid (r.id.fade_anim_ left);rightbtn =  (Button)  findviewbyid (r.id.fade_anim_right);mviewpager =  (ViewPager)  findviewbyId (R.id.anim_view_pager);/*pagertabstrip =  (Pagertabstrip)  mviewpager.findviewbyid (R.id.anim_ View_pager_tabsctrip);     pagertabstrip.settabindicatorcolor (GetResources (). GetColor ( r.color.red));       pagertabstrip.setdrawfullunderline (false);      pagertabstrip.setbackgroundcolor (Getresources (). GetColor (r.color.transparent));      pagertabstrip.settextspacing ( */mviewpager.setadapter); (New viewpageradapter ()); Mviewpager.setonpagechangelistener (Pagechangedlistener);} private  onpagechangelistener  pagechangedlistener = new  Onpagechangelistener ()  {@Overridepublic  void onpageselected (int position)  {log.e (" Viewpager ", " position===> "+position); Settabitem (position);} @SuppressLint ("Newapi") @Overridepublic  void onpagescrolled (INT ARG0, FLOAT ARG1,  INT ARG2)  {log.d ("ViEwpager ", " arg0= "+arg0+"   arg1= "+arg1+"    arg2= "+arg2);} @Overridepublic  void onpagescrollstatechanged (int arg0)  {log.i ("Viewpager",  "===== >arg0= "+arg0);}; Private void settabitem (int position) {if (position==0) {Vline.settag ("0"); Translateanimation ta = new translateanimation (width, 0, 1, 1); Ta.setduration (+); Ta.setfillbefore (true); Vline.clearanimation (); vline.startanimation (TA);} Else {vline.settag ("1"); Translateanimation ta = new translateanimation (0, width, 1, 1); Ta.setduration; Ta.setfillbefore (true); Ta.setfillafter (true); Vline.clearanimation (); Vline.startanimation ( TA);}} private class viewpageradapter extends pageradapter{@Overridepublic  int getcount ()  {return drawableresids.length;} @Overridepublic  object instantiateitem (viewgroup container, int position) {ImageView  imageview =  (ImageView)  layoutinflater.inflate (r.layout.image_display, null); Imageview.setimageresource (Drawableresids[position]); Imageview.settag (position); Container.addview (ImageView); Layoutparams lp = imageview.getlayoutparams ();lp.width = layoutparams.match_parent; LP.HEIGHT = LAYOUTPARAMS.MATCH_PARENT;IMAGEVIEW.SETLAYOUTPARAMS (LP);             RETURN IMAGEVIEW; &NBSP, @Overridepublic  void  Destroyitem (viewgroup container, int position, object object) {ImageView image  =  (ImageView) ((Viewpager)  container). Findviewwithtag (position);              ((Viewpager)  container). Removeview (image);   }@ Overridepublic boolean isviewfromobject (VIEW ARG0, OBJECT ARG1)  {return  ARG0==ARG1;}} PUBLIC VOID DOSWICTH (VIEW V)  {switch  (V.getid ())  {case r.id.fade_anim_left: { Mviewpager.setcurrentitem (0,true);} Break;case r.id.fade_anim_right:mviewpager.setcurrentitem (1,true); break;default:break;}}

<?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= "vertical"   >        <LinearLayout          android:layout_width= "Match_parent"         android:layout_ height= "wrap_content"         android:orientation= "Horizontal"          >         <button         android:id= "@+id/fade_anim_left"          android:layout_width= "Match_parent"         android: layout_height= "40dip"         android:layout_weight= "1"          android:text= "left"          android:onclick= "DoSwicth"         android:background= "@drawable/fade_anim"          />         <View               android:layout_width= "1dip"               android:layout_height= "30dip"               android:background= "@color/red"               />           <Button                       android:id= "@+id/fade_anim_right"         android: Layout_width= "Match_parent"         android:layout_height= "40dip"          android:text= "Right"           android:layout_weight= "1"         android:onclick= "DOSWICTH"         android:background= "@drawable/fade_anim"          />    </LinearLayout>         <view         android:id= "@+id/line"          android:layout_width= "160dip"          android:layout_height= "5dip"         android:background= "@ Color/red "        />        < Android.support.v4.view.viewpager        android:id= "@+id/anim_view_ Pager "        android:layout_width=" Match_parent "         android:layout_height= "Match_parent"          android:scrollbars= "Vertical"         android:keepscreenon= "true"         >           <!-- <android.support.v4.view.PagerTabStrip                 android:id= "@+id/anim_view_pager_tabsctrip"                  android:layout_width= "Wrap_ Content "                android:layout_height= "Wrap_content"                  android:layout_gravity= "Top"/ >    -->    </android.support.v4.view.viewpager></ Linearlayout>

Simple use of Android Viewpager