Android Picture Carousel (simplest)

Layout file

<relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent" > <framelayout android:layout_width= "Match_parent"Android:layout_height= "300dip" > <Android.support.v4.view.ViewPager Android:id= "@+id/vp"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"/> <LinearLayout android:layout_width= "Match_parent"Android:layout_height= "35dip"android:layout_gravity= "Bottom"Android:background= "#33000000"android:gravity= "Center"android:orientation= "Vertical" > <TextView Android:id= "@+id/title"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Picture title"Android:textcolor= "@android: Color/white"/> <LinearLayout android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_margintop= "3dip"android:orientation= "Horizontal" > <View Android:id= "@+id/dot_0"Android:layout_width= "5dip"Android:layout_height= "5dip"Android:layout_marginleft= "2dip"Android:layout_marginright= "2dip"Android:background= "@drawable/dot_yes"/> <View Android:id= "@+id/dot_1"Android:layout_width= "5dip"Android:layout_height= "5dip"Android:layout_marginleft= "2dip"Android:layout_marginright= "2dip"Android:background= "@drawable/dot_no"/> <View Android:id= "@+id/dot_2"Android:layout_width= "5dip"Android:layout_height= "5dip"Android:layout_marginleft= "2dip"Android:layout_marginright= "2dip"Android:background= "@drawable/dot_no"/> <View Android:id= "@+id/dot_3"Android:layout_width= "5dip"Android:layout_height= "5dip"Android:layout_marginleft= "2dip"Android:layout_marginright= "2dip"Android:background= "@drawable/dot_no"/> <View Android:id= "@+id/dot_4"Android:layout_width= "5dip"Android:layout_height= "5dip"Android:layout_marginleft= "2dip"Android:layout_marginright= "2dip"Android:background= "@drawable/dot_no"/> </LinearLayout> </LinearLayout> </framelayout></relativ Elayout>

Use in a fragment

 PackageCom.example.administrator.yunphone.View;Importandroid.app.Fragment;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;Importandroid.support.annotation.Nullable;ImportAndroid.support.v4.view.PagerAdapter;ImportAndroid.support.v4.view.ViewPager;ImportAndroid.view.LayoutInflater;ImportAndroid.view.View;ImportAndroid.view.ViewGroup;ImportAndroid.widget.ImageView;ImportAndroid.widget.TextView;ImportCOM.EXAMPLE.ADMINISTRATOR.YUNPHONE.R;Importjava.util.ArrayList;Importjava.util.List;Importjava.util.concurrent.Executors;ImportJava.util.concurrent.ScheduledExecutorService;ImportJava.util.concurrent.TimeUnit;/*** Created by Administrator on 2016/7/13.*/ Public classHomefragmentextendsFragment {PrivateView MView; PrivateViewpager Mviewpaper; PrivateList<imageview>images; PrivateList<view>dots; Private intCurrentItem; //record the position of the last point    Private intoldposition = 0; //ID of the image to store    Private int[] Imageids =New int[]{r.drawable.home_bg, R.DRAWABLE.HOME_BG, R.DRAWABLE.HOME_BG, r.drawable    . HOME_BG, R.DRAWABLE.HOME_BG}; //title of the picture to be stored    PrivateString[] Titles =Newstring[]{"Carousel 1",            "Carousel 2",            "Carousel 3",            "Carousel 4",            "Carousel 5"    }; PrivateTextView title; PrivateViewpageradapter Adapter; PrivateScheduledexecutorservice Scheduledexecutorservice; @Nullable @Override PublicView Oncreateview (layoutinflater inflater, ViewGroup container, Bundle savedinstancestate) {MView=inflater.inflate (R.layout.fragment_home_layout,NULL);        Setview (); returnMView; }    Private voidSetview () {Mviewpaper=(Viewpager) Mview.findviewbyid (R.ID.VP); //the picture shownImages =NewArraylist<imageview>();  for(inti = 0; i < imageids.length; i++) {ImageView ImageView=NewImageView (Getactivity ());            Imageview.setbackgroundresource (Imageids[i]);        Images.add (ImageView); }        //small dots to showDots =NewArraylist<view>();        Dots.add (Mview.findviewbyid (R.ID.DOT_0));        Dots.add (Mview.findviewbyid (r.id.dot_1));        Dots.add (Mview.findviewbyid (r.id.dot_2));        Dots.add (Mview.findviewbyid (r.id.dot_3));        Dots.add (Mview.findviewbyid (r.id.dot_4)); Title=(TextView) Mview.findviewbyid (r.id.title); Title.settext (titles[0]); Adapter=NewViewpageradapter ();        Mviewpaper.setadapter (adapter); Mviewpaper.setonpagechangelistener (NewViewpager.onpagechangelistener () {@Override Public voidOnpageselected (intposition)                {Title.settext (titles[position]);                Dots.get (position). Setbackgroundresource (R.drawable.dot_yes);                Dots.get (oldposition). Setbackgroundresource (R.drawable.dot_no); Oldposition=position; CurrentItem=position; } @Override Public voidOnpagescrolled (intARG0,floatArg1,intarg2) {} @Override Public voidOnpagescrollstatechanged (intarg0)    {            }        }); }    /*the defined adapter*/     Public classViewpageradapterextendspageradapter{@Override Public intGetCount () {returnimages.size (); } @Override Public BooleanIsviewfromobject (View arg0, Object arg1) {returnarg0 = =arg1; } @Override Public voidDestroyitem (ViewGroup view,intposition, Object object) {            //TODO auto-generated Method Stub//Super.destroyitem (container, Position, object);//View.removeview (View.getchildat (position));//View.removeviewat (position);View.removeview (images.get (position)); } @Override PublicObject Instantiateitem (ViewGroup view,intposition) {            //TODO auto-generated Method StubView.addview (images.get (position)); returnImages.get (position); }    }    /*** Use thread pool to perform animation carousel timing*/@Override Public voidOnStart () {//TODO auto-generated Method Stub        Super. OnStart (); Scheduledexecutorservice=Executors.newsinglethreadscheduledexecutor (); Scheduledexecutorservice.schedulewithfixeddelay (NewViewpagetask (),2,                2, Timeunit.seconds); }    /*** Picture Carousel Task *@authorLiuyazhuang **/    Private classViewpagetaskImplementsrunnable{@Override Public voidrun () {CurrentItem= (CurrentItem + 1)%imageids.length; Mhandler.sendemptymessage (0); }    }    /*** Receive sub-line path handed over data*/    PrivateHandler Mhandler =NewHandler () { Public voidhandlemessage (android.os.Message msg) {Mviewpaper.setcurrentitem (CurrentItem);    };    }; @Override Public voidOnStop () {//TODO auto-generated Method Stub        Super. OnStop (); if(Scheduledexecutorservice! =NULL) {Scheduledexecutorservice.shutdown (); Scheduledexecutorservice=NULL; }    }}

Android Picture Carousel (simplest)