How to display images in Android and change it by swipe right/left? -


i want add introduction android application, inform user how app works. intro displayed only, if preferred settings intro false. in intro, there 3 images , @ end, there page, text , 2 buttons, enable user access application, making login. change between each image, made swipe movement, (so right left +, left right -). how can ?

this can done via use of fragments , viewpager , fragmentpageradapter. @ documentation:

fragmentpageradapter: http://developer.android.com/reference/android/support/v4/app/fragmentpageradapter.html

viewpager: http://developer.android.com/reference/android/support/v4/view/viewpager.html

you can have 1 fragment instantiated based on id in viewpager, , id indicate image show in image fragment. 3 images, instantiate new fragment sets image in fragment based on current page in fragmentpageradapter. second fragment can 1 login buttons , text want @ end.

ex adapter defined in fragmentactivity (or appcompatactivity)

    public class myadapter extends fragmentpageradapter {         public myadapter(fragmentmanager fm) {             super(fm);         }          @override         public int getcount() {             return num_items;         }          @override         public fragment getitem(int position) {             if(position < 3)                 return imagefragment.newinstance(position);             else                 return new loginfragment();         } }

ex image fragment various images in introduction:

public static class imagefragment extends fragment{     private int mposition;      public imagefragment(){     }      public static imagefragment newinstance(int pos){         imagefragment frag = new imagefragment();         bundle args = new bundle();         args.putint("pos", pos);         frag.setarguments(args);         return frag;     }      @override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         mposition = getarguments().getint("pos");      }      @override     public view oncreateview(layoutinflater inflater, viewgroup container,             bundle savedinstancestate) {             view v = inflater.inflate(r.layout.fragment_image, container, false);             imageview backgroundview = (imageview) v.findviewbyid(r.id.background_image);             switch(mposition){                 case 0:                     //set background view image 1                 case 1:                     //set background view image 2                 default:                     //set background view image 3             }             return v;     }  }

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