Pull-up load, pull-down refresh function implementation

Package com.example.my_xlistview_text;

Import Java.io.BufferedReader;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.InputStreamReader;
Import Java.nio.channels.GatheringByteChannel;
Import java.util.ArrayList;
Import java.util.List;

Import Org.apache.http.HttpResponse;
Import org.apache.http.client.ClientProtocolException;
Import org.apache.http.client.HttpClient;
Import Org.apache.http.client.methods.HttpGet;
Import org.apache.http.impl.client.DefaultHttpClient;

Import Com.example.adapter.MyAdapter;
Import Com.example.bean.BeanVO;
Import Com.example.fresh.XListView;
Import Com.example.fresh.XListView.IXListViewListener;
Import Com.google.gson.Gson;

Import Android.os.Bundle;
Import Android.os.Handler;
Import Android.os.Message;
Import android.app.Activity;
Import Android.util.Log;
Import Android.view.Menu;
Import Android.view.View;
Import Android.widget.ArrayAdapter;
Import Android.widget.Toast;

public class Mainactivity extends Activity implements ixlistviewlistener{
Private Xlistview XLV;
private int flag=10;
Private list<string> list,initlist;
Private Myadapter adapter;
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
Find controls

XLV = (Xlistview) Findviewbyid (R.ID.XLV);
Setting the pull-up drop-down
Xlv.setpullrefreshenable (TRUE);
Xlv.setpullloadenable (TRUE);
Xlv.setxlistviewlistener (this);
List=new arraylist<string> ();
Initlist=new arraylist<string> ();
Adapter=new Myadapter (list, this);
Xlv.setadapter (adapter);
Request and Parse data
New Thread () {
public void Run () {
GetData ();
};
}.start ();

}
/**
* Request and Parse data
*/
public void GetData () {
HttpClient Request Data
HttpClient client=new defaulthttpclient ();
HttpGet get=new httpget ("http://op.juhe.cn/onebox/news/words?key=aadc8e1a325cd0b899e91639018d1769");
try {
HttpResponse response = Client.execute (get);
if (Response.getstatusline (). Getstatuscode () ==200) {
Get the data
LOG.I ("Request Data", "refresh");
InputStream is=response.getentity (). getcontent ();
BufferedReader reader=new BufferedReader (New InputStreamReader (IS));
StringBuffer sb=new StringBuffer ();
String str;
while ((Str=reader.readline ())!=null) {
Sb.append (str);
}
String jsonstr=sb.tostring ();
Gson parsing
Gson gson=new Gson ();
Beanvo Bv=gson.fromjson (Jsonstr, Beanvo.class);
List = Bv.getresult ();
InitData ();
Send Message
Message msg=handler.obtainmessage (1, initlist);
Handler.sendmessage (msg);

}
} catch (Clientprotocolexception e) {
TODO auto-generated Catch block
E.printstacktrace ();
} catch (IOException e) {
TODO auto-generated Catch block
E.printstacktrace ();
}
}
/**
* Number of items displayed
*/
public void InitData () {
Initlist.clear ();
if (List.size () >flag) {
for (int i = 0; i < flag; i++) {
Initlist.add (List.get (i));
}
} else {
Initlist.addall (list);
}
}
/**
* Processing messages
*/
Handler handler=new Handler () {
public void Handlemessage (Android.os.Message msg) {
if (msg.what==1) {
Get the data coming in.
List<string> lists= (list<string>) msg.obj;
Refresh Adapter Presentation Data
Adapter.setnewdata (lists);
}
};
};

/**
* Drop-down Refresh
*/
@Override
public void Onrefresh () {
TODO auto-generated Method Stub
Request data
flag=10;
New Thread () {
public void Run () {

GetData ();

};
}.start ();
OnLoad ();
}
/**
* Pull-up loading
*/
@Override
public void Onloadmore () {
TODO auto-generated Method Stub
flag+=10;
InitData ();
Adapter.setnewdata (initlist);
OnLoad ();
if (List.size () <flag) {
Toast.maketext (Mainactivity.this, "No more Data", +). Show ();
}

}
/**
* Stop loading
*/
public void OnLoad () {
Xlv.stoploadmore ();
Xlv.stoprefresh ();
}
}

Layout effect

<relativelayout xmlns: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"
Tools:context= ". Mainactivity ">

<com.example.fresh.xlistview
Android:id= "@+id/xlv"
Android:layout_width= "Match_parent"
android:layout_height= "Match_parent"
/>

</RelativeLayout>

Pull-up load, pull-down refresh function implementation