Using Rollviewpager to implement Android scrolling banner

A rolling banner is implemented in the recent project, and the effect is generally

　　

This is not convenient to write their own, and it is difficult to write to ensure that there is no bug and performance defects, fortunately, someone on the net open source of a rolling banner to achieve the Rollviewpager framework, pro-test convenient and feasible. This blog post simply records how to use the Open source framework Rollviewpager to achieve Android scrolling banner, want to learn more can go to GitHub download source code: Https://github.com/Jude95/RollViewPager

The main implementation of the results are: 1. Picture Infinite Carousel

2. Pause Carousel when touching

3. Indicators can be normal origin, numbers, and custom images

4. Implement Click events

Operation Flow:

1. Add Dependencies in Gradle (latest version see documentation on GitHub, use 1.3.2 here), then sync Gradle

　　

2. Writing the layout file Activity_main.xml

<?XML version= "1.0" encoding= "Utf-8"?><LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"Xmlns:app= "Http://schemas.android.com/apk/res-auto"Tools:context= "Edu.neu.steve.rollviewpagerdemo.MainActivity">    <Com.jude.rollviewpager.RollPagerViewAndroid:id= "@+id/roll_view_pager"Android:layout_width= "Match_parent"Android:layout_height= "210DP"App:rollviewpager_play_delay= " the"App:rollviewpager_hint_paddingbottom= "8DP"        />    </LinearLayout>

3. Writing Mainactivity.java

 PackageEdu.neu.steve.rollviewpagerdemo;ImportAndroid.graphics.Color;Importandroid.support.v7.app.AppCompatActivity;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.view.ViewGroup;ImportAndroid.widget.ImageView;ImportAndroid.widget.Toast;ImportCom.jude.rollviewpager.RollPagerView;ImportCom.jude.rollviewpager.adapter.LoopPagerAdapter;ImportCom.jude.rollviewpager.hintview.ColorPointHintView; Public classMainactivityextendsappcompatactivity{PrivateRollpagerview Mrollviewpager; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); Mrollviewpager=(Rollpagerview) Findviewbyid (R.id.roll_view_pager); Mrollviewpager.setanimationdurtion (500);//Setting the switching timeMrollviewpager.setadapter (NewTestloopadapter (Mrollviewpager));//setting up the adapterMrollviewpager.sethintview (NewColorpointhintview ( This, Color.White, Color.gray));//Set the dot indicator color//Mrollviewpager.sethintview (New Iconhintview (this, R.drawable.point_focus, R.drawable.point_normal));    }    Private classTestloopadapterextendsLooppageradapter {Private int[] IMGs ={r.drawable.img0, r.drawable.img1, R.drawable.img2, R.DRAWABLE.IMG3, R.drawable.img4,}; Private intCount =imgs.length;  PublicTestloopadapter (Rollpagerview viewpager) {Super(Viewpager); } @Override PublicView GetView (ViewGroup container,intposition) {            Final intPicno = position + 1; ImageView View=NewImageView (Container.getcontext ());            View.setimageresource (Imgs[position]);            View.setscaletype (ImageView.ScaleType.CENTER_CROP); View.setlayoutparams (Newviewgroup.layoutparams (ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); View.setonclicklistener (NewView.onclicklistener ()//Click events{@Override Public voidOnClick (View v) {toast.maketext (mainactivity. This, "clicked on" + Picno + "Picture", Toast.length_short). Show ();            }            }); returnview; } @Override Public intGetrealcount () {returncount; }    }}

4. Import Picture Resources

The banner content in the general application is obtained from the server, and this Part I will add in later ...

Using Rollviewpager to implement Android scrolling banner