Android cyclic ListView

Android cyclic ListView was previously implemented in iOS, which is complicated to implement. Later, I found an example on the Internet, which is easy to implement and has a good idea. I will sort it out.

Code download: http://pan.baidu.com/s/1bnEKxd1

This class is a ListView Adapter with nothing special.

ListAdapter. java

Package com. packet.com. infinitescrollview; import java. util. list; import android. content. context; import android. view. layoutInflater; import android. view. view; import android. view. viewGroup; import android. widget. baseAdapter; import android. widget. textView; public class ListAdapter extends BaseAdapter {private List
 
  
List; private LayoutInflater mInflater; public ListAdapter (Context context, List
  
   
List) {this. list = list; this. mInflater = LayoutInflater. from (context) ;}@ Overridepublic int getCount () {// TODO Auto-generated method stubif (list! = Null) {// The returned list is three times the displayed content. size () * 3;} return 0;} @ Overridepublic Object getItem (int arg0) {// TODO Auto-generated method stubreturn list. get (arg0% list. size () ;}@ Overridepublic long getItemId (int arg0) {// TODO Auto-generated method stubreturn arg0 % list. size () ;}@ Overridepublic View getView (int postition, View converView, ViewGroup arg2) {// TODO Auto-generated method stubViewHoler viewHoler = null; if (converView = null) {viewHoler = new ViewHoler (); converView = mInflater. inflate (R. layout. adapter_list_layout, null); viewHoler. tvText = (TextView) converView. findViewById (R. id. adapter_list_layout_ TV); converView. setTag (viewHoler);} else {viewHoler = (ViewHoler) converView. getTag ();} viewHoler. tvText. setText (list. get (postition % list. size (); return converView;} static class ViewHoler {TextView tvText ;}}
  
 

MainActivity. java

package com.pactera.infinitescrollview;import java.util.ArrayList;import java.util.List;import android.os.Bundle;import android.app.Activity;import android.util.Log;import android.view.Menu;import android.widget.AbsListView;import android.widget.ListView;import android.widget.AbsListView.OnScrollListener;public class MainActivity extends Activity implements OnScrollListener {private ListView listView;private List
 
   list;private ListAdapter adapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);listView = (ListView) findViewById(R.id.listView1);list = getList();adapter = new ListAdapter(this, list);listView.setAdapter(adapter);listView.setOnScrollListener(this);listView.setSelection(list.size());}public List
  
    getList() {List
   
     list = new ArrayList
    
     ();for (int i = 0; i < 10; i++) {list.add(String.valueOf(i));}return list;}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}@Overridepublic void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {// TODO Auto-generated method stubLog.d("ff", ""+ firstVisibleItem);     if (firstVisibleItem <= 2) {listView.setSelection(list.size() + 2);}else if (firstVisibleItem + visibleItemCount > adapter.getCount() - 2) {listView.setSelection(firstVisibleItem - list.size());}}@Overridepublic void onScrollStateChanged(AbsListView arg0, int arg1) {// TODO Auto-generated method stub}}
    
   
  
 

Focus on the if statement of the onScroll method above

Activity_main.xml

Adapter_list_layout.xml