android中的Listview分页
我有一个列表视图，其中显示了50个元素。我已经决定对视图进行分页，因此视图的每个部分都有10个元素，然后单击“下一步”按钮以获得下一个10个元素。如何设置10个数据？我关注这篇文章 这是我的代码。你能帮我写代码或者链接到如何正确实现的指南吗android中的Listview分页,android,android-listview,pagination,Android,Android Listview,Pagination,我有一个列表视图，其中显示了50个元素。我已经决定对视图进行分页，因此视图的每个部分都有10个元素，然后单击“下一步”按钮以获得下一个10个元素。如何设置10个数据？我关注这篇文章 这是我的代码。你能帮我写代码或者链接到如何正确实现的指南吗 public class MainActivity extends ListActivity { Context context; Button btnSearch ; EditText txtSearch; private ProgressDialo
public class MainActivity extends ListActivity {
Context context;
Button btnSearch ;
EditText txtSearch;
private ProgressDialog pDialog;
// URL to get contacts JSON
public int TOTAL_LIST_ITEMS = 50;
public int NUM_ITEMS_PAGE = 10;
private int noOfBtns;
private Button[] btns;
// JSON Node names
private static final String TAG_CONTACTS = "contacts";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_EMAIL = "email";
private static final String TAG_ADDRESS = "address";
private static final String TAG_GENDER = "gender";
private static final String TAG_PHONE = "phone";
private static final String TAG_PHONE_MOBILE = "mobile";
private static final String TAG_PHONE_HOME = "home";
private static final String TAG_PHONE_OFFICE = "office";
// contacts JSONArray
JSONArray contacts = null;
// Hashmap for ListView
ArrayList<HashMap<String, String>> contactList;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSearch=(Button)findViewById(R.id.buttonSearch);
txtSearch=(EditText)findViewById(R.id.Searchtext);
}
public String gotourl()
{
final EditText txtSearch=(EditText)findViewById(R.id.Searchtext);
String ts=txtSearch.getText().toString();
String url = "http://latest.bloomapi.com/api/search?limit=50&offset=0&key1=last_name&op1=eq&value1="+ts;
return url ;
}
public void Searchfunction(View v)
{
Btnfooter();
//loadList(0);
CheckBtnBackGroud(0);
contactList = new ArrayList<HashMap<String, String>>();
ListView lv = getListView();
// Listview on item click listener
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.name))
.getText().toString();
String cost = ((TextView) view.findViewById(R.id.email))
.getText().toString();
String description = ((TextView) view.findViewById(R.id.mobile))
.getText().toString();
// Starting single contact activity
Intent in = new Intent(getApplicationContext(),
SingleContactActivity.class);
in.putExtra(TAG_NAME, name);
in.putExtra(TAG_EMAIL, cost);
in.putExtra(TAG_PHONE_MOBILE, description);
startActivity(in);
}
});
// Calling async task to get json
new GetContacts().execute();
}
private void Btnfooter()
{
int val = TOTAL_LIST_ITEMS%NUM_ITEMS_PAGE;
val = val==0?0:1;
noOfBtns=TOTAL_LIST_ITEMS/NUM_ITEMS_PAGE+val;
LinearLayout ll = (LinearLayout)findViewById(R.id.btnLay);
btns =new Button[noOfBtns];
for(int i=0;i<noOfBtns;i++)
{
btns[i] = new Button(this);
btns[i].setBackgroundColor(getResources().getColor(android.R.color.transparent));
btns[i].setText(""+(i+1));
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
ll.addView(btns[i], lp);
final int j = i;
btns[j].setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
//loadList(j);
CheckBtnBackGroud(j);
}
});
}
}
private void CheckBtnBackGroud(int index)
{
for(int i=0;i<noOfBtns;i++)
{
if(i==index)
{
btns[index].setBackgroundDrawable(getResources().getDrawable(R.drawable.box_green));
btns[i].setTextColor(getResources().getColor(android.R.color.white));
}
else
{
btns[i].setBackgroundColor(getResources().getColor(android.R.color.transparent));
btns[i].setTextColor(getResources().getColor(android.R.color.black));
}
}
}
private class GetContacts extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(gotourl(), ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
contacts = jsonObj.getJSONArray("result");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
Integer a = contacts.length();
Log.d("loop", a.toString());
JSONObject c = contacts.getJSONObject(i);
String id = c.getString("npi");
String name = c.getString("first_name");
String email = c.getString("last_name");
//String address = c.getString(TAG_ADDRESS);
String gender = c.getString("type");
// tmp hashmap for single contact
HashMap<String, String> contact = new HashMap<String, String>();
// adding each child node to HashMap key => value
contact.put("npi", id);
contact.put("first_name", name);
contact.put("last_name", email);
//contact.put(TAG_PHONE_MOBILE, mobile);
contact.put("type", gender);
// adding contact to contact list
contactList.add(contact);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.d("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
MainActivity.this, contactList,
R.layout.list_item, new String[] { "first_name", "last_name",
"type" }, new int[] { R.id.name,
R.id.email, R.id.mobile });
setListAdapter(adapter);
}
}}
public类MainActivity扩展了ListActivity{
语境；
按钮搜索；
编辑文本txtSearch；
私人对话；
//获取联系人JSON的URL
公共int总清单项目=50；
公共int NUM_ITEMS_PAGE=10；
私家酒店；
专用按钮[]基站；
//JSON节点名称
专用静态最终字符串标记_CONTACTS=“CONTACTS”；
私有静态最终字符串标记\u ID=“ID”；
私有静态最终字符串标记_NAME=“NAME”；
私有静态最终字符串标记\u EMAIL=“EMAIL”；
私有静态最终字符串标记_ADDRESS=“ADDRESS”；
私有静态最终字符串标记_GENDER=“GENDER”；
专用静态最终字符串标记_PHONE=“PHONE”；
专用静态最终字符串标记\u PHONE\u MOBILE=“MOBILE”；
专用静态最终字符串标记\u PHONE\u HOME=“HOME”；
专用静态最终字符串标记\u PHONE\u OFFICE=“OFFICE”；
//联系JSONArray
JSONArray联系人=null；
//ListView的Hashmap
ArrayList联系人列表；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
btnSearch=（按钮）findviewbyd（R.id.buttonSearch）；
txtSearch=（EditText）findViewById（R.id.Searchtext）；
}
公共字符串gotour（）
{
最终EditText txtSearch=（EditText）findViewById（R.id.Searchtext）；
字符串ts=txtSearch.getText（）.toString（）；
字符串url=”http://latest.bloomapi.com/api/search?limit=50&offset=0&key1=last_name&op1=eq&value1=“+ts；
返回url；
}
公共无效搜索功能（视图五）
{
Btnfooter（）；
//加载列表（0）；
检查BTNBackground（0）；
contactList=新的ArrayList（）；
ListView lv=getListView（）；
//单击项目上的Listview侦听器
lv.setOnItemClickListener（新的OnItemClickListener（）{
@凌驾
public void onItemClick（AdapterView父级、视图、，
内部位置，长id）{
//从选定的ListItem获取值
字符串名称=（（TextView）view.findViewById（R.id.name））
.getText（）.toString（）；
字符串成本=（（TextView）view.findViewById（R.id.email））
.getText（）.toString（）；
字符串描述=（（TextView）view.findViewById（R.id.mobile））
.getText（）.toString（）；
//启动单一联系人活动
Intent in=新的Intent（getApplicationContext（），
活动类）；
in.putExtra（标签名称、名称）；
in.putExtra（标签、电子邮件、成本）；
in.putExtra（标签、手机、说明）；
星触觉（in）；
}
});
//调用异步任务以获取json
新建GetContacts（）.execute（）；
}
私有void Btnfooter（）
{
int val=总列表项目数%NUM项目数页面；
val=val==0？0:1；
noOfBtns=总项目列表项目/NUM项目页面+val；
LinearLayout ll=（LinearLayout）findViewById（R.id.btnLay）；
btns=新按钮[noOfBtns]；
对于（int i=0；i值
联系人。put（“npi”，id）；
联系人：put（“名字”，姓名）；
联系人：put（“姓氏”，电子邮件）；
//联系人。放置（标签、手机、手机）；
联系人：put（“类型”，性别）；
//将联系人添加到联系人列表
联系人列表。添加（联系人）；
}
}捕获（JSONException e）{
e、 printStackTrace（）；
}
}否则{
Log.d（“ServiceHandler”，“无法从url获取任何数据”）；
}
返回null；
}
@凌驾
受保护的void onPostExecute（void结果）{
super.onPostExecute（结果）；
//关闭进度对话框
if（pDialog.isShowing（））
pDialog.disclose（）；
/**
*将解析的JSON数据更新到ListView中
* */
ListAdapter=新的SimpleAdapter(
MainActivity.this，联系人列表，
R.layout.list_项，新字符串[]{“first_name”，“last_name”，
“type”}，新的int[]{R.id.name，
R.id.email，R.id.mobile}）；
setListAdapter（适配器）；
}
}}
我更改了代码。当我单击“下一步”按钮[如2,3,4,5]时，将显示第一页数据。这是我修改的代码。欢迎提供任何帮助：
public class MainActivity extends ListActivity {
private TextView title;
Context context;
Button btnSearch ;
EditText txtSearch;
private ListView listview;
private ProgressDialog pDialog;
// URL to get contacts JSON
public int TOTAL_LIST_ITEMS = 50;
public int NUM_ITEMS_PAGE = 10;
private int noOfBtns;
private Button[] btns;
// JSON Node names
private static final String TAG_CONTACTS = "contacts";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_EMAIL = "email";
private static final String TAG_ADDRESS = "address";
private static final String TAG_GENDER = "gender";
private static final String TAG_PHONE = "phone";
private static final String TAG_PHONE_MOBILE = "mobile";
private static final String TAG_PHONE_HOME = "home";
private static final String TAG_PHONE_OFFICE = "office";
// contacts JSONArray
JSONArray contacts = null;
// Hashmap for ListView
ArrayList<HashMap<String, String>> contactList;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnSearch=(Button)findViewById(R.id.buttonSearch);
txtSearch=(EditText)findViewById(R.id.Searchtext);
title = (TextView)findViewById(R.id.title);
}
public String gotourl()
{
final EditText txtSearch=(EditText)findViewById(R.id.Searchtext);
String ts=txtSearch.getText().toString();
String url = "http://latest.bloomapi.com/api/search?limit=50&offset=0&key1=last_name&op1=eq&value1="+ts;
return url ;
}
public void Searchfunction(View v)
{
Btnfooter();
CheckBtnBackGroud(0);
contactList = new ArrayList<HashMap<String, String>>();
ListView lv = getListView();
// Listview on item click listener
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if(position%2==0)
{
view.setBackgroundColor(Color.parseColor("#F4FA58"));
}else
{
view.setBackgroundColor(Color.parseColor("#DA81F5"));
}
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.name))
.getText().toString();
String cost = ((TextView) view.findViewById(R.id.email))
.getText().toString();
String description = ((TextView) view.findViewById(R.id.mobile))
.getText().toString();
// Starting single contact activity
Intent in = new Intent(getApplicationContext(),
SingleContactActivity.class);
in.putExtra(TAG_NAME, name);
in.putExtra(TAG_EMAIL, cost);
in.putExtra(TAG_PHONE_MOBILE, description);
startActivity(in);
}
});
// Calling async task to get json
new GetContacts().execute();
}
private void Btnfooter()
{
int val = TOTAL_LIST_ITEMS%NUM_ITEMS_PAGE;
val = val==0?0:1;
noOfBtns=TOTAL_LIST_ITEMS/NUM_ITEMS_PAGE+val;
LinearLayout ll = (LinearLayout)findViewById(R.id.btnLay);
btns =new Button[noOfBtns];
for(int i=0;i<noOfBtns;i++)
{
btns[i] = new Button(this);
btns[i].setBackgroundColor(getResources().getColor(android.R.color.transparent));
btns[i].setText(""+(i+1));
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
ll.addView(btns[i], lp);
final int j = i;
btns[j].setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
new GetContacts().execute();
CheckBtnBackGroud(j);
}
});
}
}
private void CheckBtnBackGroud(int index)
{
title.setText("Page "+(index+1)+" of "+noOfBtns);
for(int i=0;i<noOfBtns;i++)
{
if(i==index)
{
btns[index].setBackgroundDrawable(getResources().getDrawable(R.drawable.box_green));
btns[i].setTextColor(getResources().getColor(android.R.color.white));
}
else
{
btns[i].setBackgroundColor(getResources().getColor(android.R.color.transparent));
btns[i].setTextColor(getResources().getColor(android.R.color.black));
}
}
}
private class GetContacts extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(gotourl(), ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
int number = 0;
int start = number * NUM_ITEMS_PAGE;
// looping through All Contacts
// Getting JSON Array node
contacts = jsonObj.getJSONArray("result");
// looping through All Contacts
//for (int i = 0; i < contacts.length(); i++) {
for(int i=start;i<(start)+NUM_ITEMS_PAGE;i++) {
Integer a = contacts.length();
Log.d("loop", a.toString());
JSONObject c = contacts.getJSONObject(i);
String id = c.getString("npi");
String name = c.getString("first_name");
String email = c.getString("last_name");
String gender = c.getString("type");
// tmp hashmap for single contact
HashMap<String, String> contact = new HashMap<String, String>();
// adding each child node to HashMap key => value
contact.put("npi", id);
contact.put("first_name", name);
contact.put("last_name", email);
//contact.put(TAG_PHONE_MOBILE, mobile);
contact.put("type", gender);
// adding contact to contact list
contactList.add(contact);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.d("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
MainActivity.this, contactList,
R.layout.list_item, new String[] { "first_name", "last_name",
"type" }, new int[] { R.id.name,
R.id.email, R.id.mobile });
setListAdapter(adapter);
}
}}
public类MainActivity扩展了ListActivity{
私有文本视图标题；
语境；
按钮搜索；
编辑文本txtSearch；
私有列表视图列表视图；
私人对话；
//获取联系人JSON的URL
公共int总清单项目=50；
公共int NUM_ITEMS_PAGE=10；
私家酒店；
专用按钮[]基站；
//JSON节点名称
专用静态最终字符串标记_CONTACTS=“CONTACTS”；
私有静态最终字符串标记\u ID=“ID”；
私有静态最终字符串标记_NAME=“NAME”；
私有静态最终字符串标记\u EMAIL=“EMAIL”；
私有静态最终字符串标记_ADDRESS=“ADDRESS”；
私有静态最终字符串标记_GENDER=“GENDER”；
专用静态最终字符串标记_PHONE=“PHONE”；
专用静态最终字符串标记\u PHONE\u MOBILE=“MOBILE”；
专用静态最终字符串标记\u PHONE\u HOME=“HOME”；
专用静态最终字符串标记\u PHONE\u OFFICE=“OFFICE”；
//联系JSONArray
JSONArray联系人=null；
//ListView的Hashmap
ArrayList联系人列表；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
btnSearch=（按钮）findviewbyd（R.id.buttonSearch）；
txtSearch=（EditText）findViewById（R.id.Searchtext）；
title=（TextView）findViewById（R.id.title）；
}
公共字符串gotour
package com.UserCategory;
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
public class UserCategory extends Activity implements OnClickListener{
private final int PAGE_SIZE = 5;
private int StartingIndex = 0;
ArrayList<String> userClass=new ArrayList<String>();
int textlength=0;
private String lv_arr[];
private ListView lv1;
EditText searchText;
//Button Previous;
private String Machine[]={"Machine 1","Machine 2","Machine 3","Machine 4","Machine 5","Machine 6","Machine 7","Machine 8","Machine 9","Machine 10","Machine 11","Machine 12","Machine 1","Machine 2","Machine 3","Machine 4","Machine 5","Machine 6","Machine 7","Machine 8","Machine 9","Machine 10","Machine 11","Machine 12"};
ImageView next,Previous;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.main);
lv1=(ListView)findViewById(R.id.ListView01);
searchText=(EditText)findViewById(R.id.et_Serchlist);
next=(ImageView)findViewById(R.id.btn_next);
Previous=(ImageView)findViewById(R.id.btn_previous);
next.setOnClickListener(this);
Previous.setOnClickListener(this);
//parsing();
lv1.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 , Machine));
changeListViewModel(0);
}
private void changelist(int startingIndex) {
if(startingIndex < 0) {
Previous=(ImageView)findViewById(R.id.btn_previous);
ImageView back=(ImageView)findViewById(R.id.btn_Whiteprevious);
back.setVisibility(1);
Previous.setVisibility(4);
startingIndex = 0;
}else if(startingIndex >= userClass.size())
startingIndex -= PAGE_SIZE;
StartingIndex = startingIndex;
int endingIndex = startingIndex + PAGE_SIZE;
System.out.println("ending index"+endingIndex);
if(StartingIndex!=0){
Previous=(ImageView)findViewById(R.id.btn_previous);
ImageView back=(ImageView)findViewById(R.id.btn_Whiteprevious);
back.setVisibility(4);
Previous.setVisibility(1);
}
if(endingIndex == userClass.size()){
ImageView Forward=(ImageView)findViewById(R.id.btn_grewforward);
Forward.setVisibility(1);
next=(ImageView)findViewById(R.id.btn_next);
next.setVisibility(4);
}
if(endingIndex != userClass.size()){
ImageView Forward=(ImageView)findViewById(R.id.btn_grewforward);
Forward.setVisibility(4);
next=(ImageView)findViewById(R.id.btn_next);
next.setVisibility(1);
}
if(endingIndex > userClass.size()) endingIndex = userClass.size();
try {
String[] subSet = getDataSubset1(startingIndex, endingIndex);
System.out.println("subSet array"+subSet);
lv1.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 , subSet));
} catch (Exception e) {
e.printStackTrace();
}
}
private String[] getDataSubset1(int startingIndex, int endingIndex){
String[] changeList = new String[endingIndex - startingIndex];
int index = -1;
for(int x = startingIndex; x < endingIndex; x++)
changeList[++index] = userClass.get(x);
return changeList;
}
private void changeListViewModel(int startingIndex){
if(startingIndex < 0) {
Previous=(ImageView)findViewById(R.id.btn_previous);
ImageView back=(ImageView)findViewById(R.id.btn_Whiteprevious);
back.setVisibility(1);
Previous.setVisibility(4);
startingIndex = 0;
}
else if(startingIndex >= Machine.length){
startingIndex -= PAGE_SIZE;
}
System.out.println("strating"+startingIndex);
System.out.println("startingIndex"+startingIndex);
StartingIndex = startingIndex;
int endingIndex = startingIndex + PAGE_SIZE;
System.out.println("endingIndex"+endingIndex);
if(StartingIndex!=0)
{
Previous=(ImageView)findViewById(R.id.btn_previous);
ImageView back=(ImageView)findViewById(R.id.btn_Whiteprevious);
back.setVisibility(4);
Previous.setVisibility(1);
}
if(endingIndex == userClass.size()){
ImageView Forward=(ImageView)findViewById(R.id.btn_grewforward);
Forward.setVisibility(1);
next=(ImageView)findViewById(R.id.btn_next);
next.setVisibility(4);
}
if(endingIndex != userClass.size()){
ImageView Forward=(ImageView)findViewById(R.id.btn_grewforward);
Forward.setVisibility(4);
next=(ImageView)findViewById(R.id.btn_next);
next.setVisibility(1);
}
System.out.println("ending index"+endingIndex);
if(endingIndex > Machine.length) {
endingIndex = Machine.length;
ImageView Forward=(ImageView)findViewById(R.id.btn_grewforward);
Forward.setVisibility(1);
next=(ImageView)findViewById(R.id.btn_next);
next.setVisibility(4);
}
String[] subSet = getDataSubset(startingIndex, endingIndex);
System.out.println("subSet main array"+subSet.length);
lv1.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 , subSet));
}
private String[] getDataSubset(int startingIndex, int endingIndex){
String[] toRet = new String[endingIndex - startingIndex];
int index = -1;
System.out.println("index"+index);
for(int x = startingIndex; x < endingIndex; x++)
toRet[++index] = Machine[x];
return toRet;
}
private void parsing() {
// TODO Auto-generated method stub
try {
URL url = new URL("http://10.10.1.100/DogEventsWebService/EventService.svc/categories/1");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(url.openStream()));
doc.getDocumentElement().normalize();
NodeList nodeList = doc.getElementsByTagName("UserCategory");
Machine = new String[nodeList.getLength()];
for (int i = 0; i < nodeList.getLength(); i++)
{
Node node = nodeList.item(i);
Machine[i] = new String();
Element fstElmnt = (Element) node;
NodeList nameList = fstElmnt.getElementsByTagName("ClassDescription");
Element nameElement = (Element) nameList.item(0);
nameList = nameElement.getChildNodes();
Machine[i]=((Node) nameList.item(0)).getNodeValue();
}
System.out.println("after for loop Machine"+Machine);
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn_next:
textlength=searchText.getText().length();
System.out.println("nextbutton"+textlength);
if(textlength==0){
changeListViewModel(StartingIndex + PAGE_SIZE);
}else{
changelist(StartingIndex + PAGE_SIZE);
}
break;
case R.id.btn_previous:
textlength=searchText.getText().length();
if(textlength==0){
changeListViewModel(StartingIndex - PAGE_SIZE);
}else{
changelist(StartingIndex - PAGE_SIZE);
}
break;
default:
break;
}
}
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<View android:layout_height="35dp"
android:layout_width="fill_parent"
android:background="#ffffff"/>
<TextView android:id="@+id/tv_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello"
android:layout_alignParentTop="true"
android:layout_marginLeft="0dp"
android:textSize="25dp"/>
<EditText
android:id="@+id/et_Serchlist"
android:layout_height="35dp"
android:paddingLeft="19dp"
android:layout_marginLeft="60dp"
android:layout_toRightOf="@+id/tv_header"
android:maxLength="20"
android:maxLines="1"
android:inputType="text"
android:hint="Search"
android:textColor="#ffffff"
android:background="@drawable/my_border"
android:layout_width="100dip"/>
<ListView
android:id="@+id/ListView01"
android:layout_width="fill_parent"
android:textSize="4px"
android:layout_below="@+id/tv_header"
android:layout_above="@+id/btn_previous"
android:layout_height="wrap_content" />
<View android:layout_height="55dp"
android:layout_below="@+id/ListView0"
android:layout_alignParentBottom="true"
android:layout_width="fill_parent"
android:background="#ffffff"/>
<ImageView
android:src="@drawable/grewprevious"
android:id="@+id/btn_Whiteprevious"
android:layout_width="wrap_content"
android:layout_marginLeft="12dp"
android:layout_marginBottom="6dp"
android:layout_below="@+id/ListView0"
android:visibility="invisible"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content"/>
<ImageView
android:src="@drawable/right"
android:id="@+id/btn_grewforward"
android:layout_width="wrap_content"
android:layout_marginLeft="259dp"
android:layout_marginBottom="6dp"
android:layout_below="@+id/ListView0"
android:visibility="invisible"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content"/>
<ImageView
android:src="@drawable/backward"
android:id="@+id/btn_previous"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginLeft="12dp"
android:layout_marginBottom="6dp"
android:layout_below="@+id/ListView0"
android:onClick="backButtonClicked"/>
<ImageView android:src="@drawable/forward"
android:id="@+id/btn_next"
android:layout_width="80dp"
android:layout_marginBottom="6dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="@+id/ListView0"
android:layout_marginLeft="249dp"
android:text="Next"
android:onClick="nextButtonClicked"/>
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView android:id="@+id/tv_className"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="2dip" android:color="#ee777777" />
<solid android:color="#ee444444"/>
<padding
android:left="20dip"
android:top="2dip"
android:right="20dip"
android:bottom="2dip" />
<corners android:radius="15dip" />
![enter image description here][1]</shape>