Android: Use Viewpager to move left and right to toggle pictures (simple version)

Viewpager, which is a class of an add-on package that comes with the Google SDK, lets you slide the view.

Steps:

1, introduce Android-support-v4.jar package, add in the main layout

< Android.support.v4.view.ViewPager Android:id = "@+id/viewpager"   android:layout_width= "Match_parent"android:layout_height= "Wrap_content"  >       </android.support.v4.view.ViewPager>

2. Load Switch Content

3. Viewpager Load Adapter Pageradapter

 Public classMainactivityextendsActivity {PrivateViewpager Viewpager;PrivateArraylist<view>PageView; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); //Set no title barrequestwindowfeature (Window.feature_no_title);                Setcontentview (R.layout.main); Viewpager=(Viewpager) Findviewbyid (R.id.viewpager); //find layout files with Layoutinflater.inflateLayoutinflater Inflater =Getlayoutinflater (); View View1= Inflater.inflate (R.LAYOUT.ITEM01,NULL); View View2= Inflater.inflate (R.LAYOUT.ITEM02,NULL); View VIEW3= Inflater.inflate (R.layout.item03,NULL); //to load a view into an arrayPageView =NewArraylist<view>();        Pageview.add (View1);        Pageview.add (VIEW2);                        Pageview.add (VIEW3); //Data AdapterPageradapter Mpageradapter =NewPageradapter () {@Override//gets the current form interface number             Public intGetCount () {//TODO auto-generated Method Stub                returnpageview.size (); } @Override//whether the interface is generated by the object             Public BooleanIsviewfromobject (View arg0, Object arg1) {//TODO auto-generated Method Stub                returnarg0==arg1; }            //is to remove the current view from the ViewGroup              Public voidDestroyitem (View arg0,intarg1, Object arg2)                  {(Viewpager) arg0). Removeview (Pageview.get (arg1)); }                          //returns an object that indicates which object the Pageradapter adapter chooses to place in the current Viewpager             PublicObject Instantiateitem (View arg0,intarg1)                {(Viewpager) arg0). AddView (Pageview.get (arg1)); returnPageview.get (ARG1);                }                                }; //Binding AdapterViewpager.setadapter (Mpageradapter); }}

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