JSON Android ListView

JSON Android ListView - android

I build this webservice on netbeans,
package in.figures.on.mobile;
import db.koneksi.dbKoneksi;
import java.sql.Statement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebService;
import org.json.simple.JSONValue;
/**
*
* #author Setyadi
*/
#WebService()
public class AksesData {
/**
* Web service operation
*/
#WebMethod(operationName = "Kategori")
public String Kategori() {
//TODO write your implementation code here:
dbKoneksi con = new dbKoneksi();
Statement statement;
Properties properties;
List list = new ArrayList();
String sql = "SELECT idPrimary_key, kategori FROM kategori ";
ResultSet hasil;
String kategori = null;
try{
statement = con.getConnection().createStatement();
hasil = statement.executeQuery(sql);
while (hasil.next()) {
properties = new Properties();
properties.put("idPrimary_key", hasil.getString(1));
properties.put("kategori", hasil.getString(2));
list.add(properties);
}
kategori = JSONValue.toJSONString(list);
}
catch(Exception e){
}
return kategori;
}
}
And return a JSON like this
[{"idPrimary_key":"21ye21","kategori":"FirstCategory"},
{"idPrimary_key":"89oy89","kategori":"SecondCategory"},
{"idPrimary_key":"34ew34","kategori":"ThirdCategory"}]
And I try to consume in Android ListView like this, but still got errors,
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
HttpTransportSE transportSE = new HttpTransportSE(URL);
try {
transportSE.call(SOAP_ACTION, envelope);
SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
result = response.toString();
} catch (Exception e) {
e.printStackTrace();
}
String jsonAN = "{\"kat\":"+result+"}"; //try to build to be like this {"kat":[{blablablaJSON}]}
String kategoriJSONList[][] = new String[99][2];
String katList[] = new String[99]; //tobe shown on listview, derived from two dimensional array above.
try {
jsonObject = new JSONObject(jsonAN);
jsonArray = jsonObject.getJSONArray("kat");
for(int i=0; i < jsonArray.length() ; i++){
kategoriJSONList[i][0] = jsonArray.getJSONObject(i).getString("idPrimary_key").toString();
kategoriJSONList[i][1] = jsonArray.getJSONObject(i).getString("kategori").toString();
}
for(int i=0; i < jsonArray.length(); i++){
katList[i] = kategoriJSONList[i][1];
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ListView list = (ListView) findViewById(R.id.listKategori);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
WebServiceActivity.this, android.R.layout.simple_list_item_1,katList
);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
final String kategori = (String) ((TextView)arg1).getText();
Toast.makeText(WebServiceActivity.this, kategori,
Toast.LENGTH_LONG).show();
}
});
Need help how to consume the JSONValue that return as shown above to be shown as ListView.
I got stress in this days.
Thanks in advance.

Ok. Try this bellow code. It is full functional to me. You should implement the HttpRequest in the commented line. Pay atention to that the JSON array is hard-coded.
// the Adapter
public class ListViewAdapter extends BaseAdapter {
private Context context = null;
private List<String> fields = null;
public ListViewAdapter(Context context, JSONArray arr) {
this.context = context;
this.fields = new ArrayList<String>();
for (int i=0; i<arr.length(); ++i) {
try {
fields.add(arr.getJSONObject(i).toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
}
#Override
public int getCount() {
return fields.size();
}
#Override
public Object getItem(int position) {
return fields.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup viewGroup) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.itemlist, null);
TextView txt = (TextView) convertView.findViewById(R.id.ItemList_txt);
txt.setText(fields.get(position));
return convertView;
}
}
// the activity
public class ListViewActivity extends Activity {
public final String result = "[{\"idPrimary_key\":\"21ye21\",\"kategori\":\"FirstCategory\"},{\"idPrimary_key\":\"89oy89\",\"kategori\":\"SecondCategory\"},{\"idPrimary_key\":\"34ew34\",\"kategori\":\"ThirdCategory\"}]";
public final String obj = "{\"kat\":"+result+"}";
private ListViewAdapter adapter = null;
private ListView myList = null;
private JSONArray items = new JSONArray();
final Handler handler = new Handler() {
#Override
public void handleMessage(android.os.Message msg) {
if (msg.what == 0) { // server returned null, try again
loadFields();
} else if(msg.what == 1) { // error in json
// do something to treat it
} else if (msg.what == 2) { // ready to roll the list
adapter = new ListViewAdapter(ListViewActivity.this, items);
myList.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myList = (ListView) findViewById(R.id.Lists_notificationsListview);
loadFields();
}
private void loadFields() {
new Thread() {
#Override
public void run() {
Looper.prepare();
StringBuilder builder = new StringBuilder(obj);
if (builder != null) {
try {
// HERE, you should implement the HTTP request...
items = new JSONObject(obj).getJSONArray("kat");
handler.sendEmptyMessage(2);
} catch (JSONException e) {
handler.sendEmptyMessage(1);
}
} else {
handler.sendEmptyMessage(0);
}
Looper.loop();
}
}.start();
}
And the xml files:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical"
android:isScrollContainer="true">
<ListView
android:id="#+id/Lists_notificationsListview"
android:layout_width="fill_parent" android:layout_height="match_parent">
</ListView>
</RelativeLayout>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<TextView
android:id="#+id/ItemList_txt"
android:layout_width="fill_parent" android:layout_height="wrap_content"/>
</LinearLayout>
As result, it generates the following view:
Of course, you can customize it to create lists that you want, just parsing the jsons!
Hope that I've helped in some way...

Related

How to show data JSON in Listview Android based on the same key JSON [duplicate]

I am new to android and java.Recently I am having problem with displaying fetched json data into listview using baseadapter.
At first I have used this code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ArrayAdapter<String> adapter = new ArrayAdapter<String> (MainActivity.this,R.layout.test_tuh,stringArray);
ListView list= (ListView) findViewById(R.id.listView1);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
public 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;
}
}
This code displays fetched json data sucessfully. But it only displays only one row. I need more than one (two) rows in listview. So I have tried this code
and it does not work, it shows a blank screen .
My code is below,
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
String response = result.toString();
try {
arrayList=new ArrayList<get_set>();
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ListView listView;
adap= new BaseAdapter() {
LayoutInflater inflater=(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
#Override
public View getView(int position, View view, ViewGroup viewgroup) {
if (view==null) {
view=inflater.inflate(R.layout.bsdi, null);
}
TextView title_tuh=(TextView) view.findViewById(R.id.title1);
TextView notice_tuh=(TextView) view.findViewById(R.id.notice1);
title_tuh.setText(arrayList.get(position).getTitle());
notice_tuh=.setText(arrayList.get(position).getNotice());
return view;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return arrayList.get(position);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return arrayList.size();
}
};
listView=(ListView) findViewById(R.id.listView1);
listView.setAdapter(adap);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
As far I am realizing that , the problem is here
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
As far I am guesing that extracted json data is storing in stringArray but its not used later. If I try to use it like this , then I get error
title_tuh.setText(stringArray .get(position).getTitle());
notice_tuh=.setText(stringArray .get(position).getNotice());
If I try to not to use
ArrayList stringArray = new ArrayList();
and use
arrayList=new ArrayList(); instead , like this then I also get error.
arrayList=new ArrayList<get_set>();
JSONArray new_array = new JSONArray(response);
//JSONArray jsonArray = new JSONArray();
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
arrayList.add(jsonObject.getString("title").toString());
// String in = mInflater.inflate(R.layout.custom_row_view, null);
}
catch (JSONException e) {
e.printStackTrace();
}
}
I can not finding out how to solve this problem.I have seen many online tutorials but those was not helpful for me. Please help me.

First u need t create row_listitem.xml file like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:background="#drawable/list_selector"
android:orientation="vertical"
android:padding="5dp" >
<ImageView
android:id="#+id/iv_icon_social"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_centerVertical="true"
android:background="#drawable/image_border"
android:src="#drawable/sms_t"
android:visibility="gone" />
<LinearLayout
android:id="#+id/thumbnail"
android:layout_width="fill_parent"
android:layout_height="85dp"
android:layout_marginRight="50dp"
android:layout_marginTop="0dp"
android:layout_toRightOf="#+id/iv_icon_social"
android:gravity="center_vertical"
android:orientation="vertical"
android:padding="5dip"
android:visibility="visible" >
<TextView
android:id="#+id/txt_ttlsm_row"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:text="Sample text"
android:textSize="18dp"
android:textStyle="bold" />
<TextView
android:id="#+id/txt_ttlcontact_row2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="0dp"
android:layout_marginTop="3dp"
android:paddingLeft="10dp"
android:maxEms="20"
android:maxLines="2"
android:singleLine="false"
android:ellipsize="end"
android:text="Sample text2"
android:textColor="#808080"
android:textSize="15dp"
android:textStyle="normal"
android:visibility="visible" />
</LinearLayout>
</RelativeLayout>
Now, u need to create Custom BaseAdapter like:
public class BaseAdapter2 extends BaseAdapter {
private Activity activity;
// private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public BaseAdapter2(Activity a, ArrayList b, ArrayList bod) {
activity = a;
this.title = b;
this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.row_listitem, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt_ttlsm_row); // title
String song = title.get(position).toString();
title2.setText(song);
TextView title22 = (TextView) vi.findViewById(R.id.txt_ttlcontact_row2); // notice
String song2 = notice.get(position).toString();
title22.setText(song2);
return vi;
}
}
Now, u can set up your main activity like:
public class MainActivity extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
BaseAdapter2 adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.listView1);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new BaseAdapter2(MainActivity.this, title_array, notice_array);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
}
}

#Allen Chun , actually its not in my mind currently that what I have changed in my code to run my code perfectly. But I am sharing all my codes which are working perfectly.
Its my layout code,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/fsr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Notice Board"
android:textSize="20px" />
<TextView
android:id="#+id/err_msg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/list_notice2"
android:layout_gravity="center" />
</LinearLayout>
This is my custom listview layout codes,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:paddingTop="10dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceMedium" />
/>
<TextView
android:id="#+id/notice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Small Text"
android:paddingTop="5dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
its my activity named "NoticeBoard" .
public class NoticeBoard extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
base_adapter3 adapter;
TextView f,msg;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_notice);
list = (ListView) findViewById(R.id.list_notice2);
msg=(TextView) findViewById(R.id.err_msg);
new test_ays().execute();
}
class test_ays extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null ;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if(result!=null) // add this
{
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new base_adapter3(NoticeBoard.this, title_array, notice_array);
list.setAdapter(adapter);
// f=(TextView) findViewById(R.id.textTuh);
// f.setText(title_array);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
else{
msg.setText("You need a working data connection...");
}
}
}
}
And its my custom baseadapter codes,
public class base_adapter2 extends BaseAdapter {
private Activity activity;
//private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public base_adapter2(Activity a, ArrayList b) {
activity = a;
this.title = b;
// this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.bsdi_adapter, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt1); // title
String song = title.get(position).toString();
title2.setText(song);
return vi;
}
}

In this example, I am connecting to Twitters public timeline JSON url.
package net.inchoo.demo.andy1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class HomeActivity extends ListActivity {
/** Called when the activity is first created. */
#SuppressWarnings({ "rawtypes", "unchecked" })
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, this.fetchTwitterPublicTimeline()));
}
public ArrayList<String> fetchTwitterPublicTimeline()
{
ArrayList<String> listItems = new ArrayList<String>();
try {
URL twitter = new URL(
"http://twitter.com/statuses/public_timeline.json");
URLConnection tc = twitter.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
JSONArray ja = new JSONArray(line);
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
listItems.add(jo.getString("text"));
}
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return listItems;
}
}
Please direct your attention on the listItems.add(jo.getString(“text”)); line. This is the part that I am grabbing a “text” attribute/property of single JSON object. To get a more “visual” picture of all available attributes/properties you might want to take a look at the XML version of twitters public timeline. This way you will get nice colored XML in your browser, where you can see all available attributes.
Link: http://inchoo.net/dev-talk/android-development/simple-android-json-parsing-example-with-output-into-listactivity/

Json parser:
public class jparser {
static InputStream istream = null;
static JSONObject jObj = null;
//static JSONArray jarray=null;
static String json = "";
//static JSONArray jarray = null;
// constructor
public jparser() {
}
public JSONObject getJFromUrl(String url) {
// Making HTTP request
//try {
// defaultHttpClient
StringBuilder builder = new StringBuilder();
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
/*HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
istream = httpEntity.getContent();*/
try{
HttpResponse response = httpClient.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 400)
{
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null)
{
builder.append(line);
}
}
else
{
Log.e("==>", "Failed to download file");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(istream, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
istream.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
// Parse String to JSON object
/*try {
jarray = new JSONArray( builder.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON Object
return jarray;
}*/
}
}

public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
#SuppressLint("NewApi")
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
<h1>Model</h1>
public class WorkModel {
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImagename() {
return imagename;
}
public void setImagename(String imagename) {
this.imagename = imagename;
}
String id,name,imagename;
public WorkModel(String s1,String s2,String s3)
{
this.id=s1;
name=s2;
imagename=s3;
}
}
<h1>listview fill</h1>
public class Work_in_process extends Fragment {
//////////////jsonparser implement
JSONParser jsonparser=new JSONParser();
JSONArray json_users=null;
JSONObject json;
/////////
ListView lst;
ArrayList<WorkModel> data=new ArrayList<WorkModel>();
WorkAdapter adapter;
Context con;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_work_in_process, container, false);
con=this.getActivity();
lst=(ListView)rootView.findViewById(R.id.work_listview);
new work_process().execute();
// Inflate the layout for this fragment
return rootView;
}
class work_process extends AsyncTask<String,String,String>
{
public Dialog pDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(con);
pDialog.setMessage("Loading... Please wait...");
pDialog.setIndeterminate(true);
pDialog.setCancelable(true);
pDialog.show();
}
#Override
protected String doInBackground(String... args) {
data.clear();
List<NameValuePair> params = new ArrayList<NameValuePair>();
json = jsonparser.makeHttpRequest("your url","POST", params);
try {
int success = json.getInt("status");
if (success == 0)
{
return "kbc";
}
else
{
json_users = json.getJSONArray("result");
// looping through All Products
for (int i = 0; i < json_users.length(); i++) {
JSONObject c = json_users.getJSONObject(i);
String t1 = c.getString("id");
String t2 = c.getString("work_title");
String t3 = c.getString("image_path");
WorkModel da=new WorkModel(t1,t2,t3);
data.add(da);
}
return "abc";
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
pDialog.dismiss();
if(s.equals("abc"))
{
adapter = new WorkAdapter(con, data);
lst.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else
{
}
}
}
}
<h1>Adapter fill listview</h1>
public class WorkAdapter extends BaseAdapter {
private LayoutInflater inflater1=null;
private static String string=null;
ArrayList<WorkModel> data=null;
Context activity;
DisplayImageOptions options;
protected ImageLoader imageLoader = ImageLoader.getInstance();
public WorkAdapter(Context act,ArrayList<WorkModel> da)
{
activity=act;
data=da;
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
{
inflater1=(LayoutInflater)parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vi=inflater1.inflate(R.layout.list_work,null);
}
TextView name;
ImageView img;
name=(TextView)vi.findViewById(R.id.list_work_name);
img= (ImageView)vi.findViewById(R.id.list_work_img);
WorkModel da=new WorkModel(string,string,string);
da=data.get(position);
final String p1,p2,p3;
p1=da.getId();
p2=da.getName();
p3=da.getImagename();
name.setText(p2);
imageLoader.init(ImageLoaderConfiguration.createDefault(activity));
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, img,options);
img.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DisplayImageOptions options;
final ImageLoader imageLoader = ImageLoader.getInstance();
final Dialog emailDialog =new Dialog(activity, android.R.style.Theme_DeviceDefault);
emailDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
emailDialog.setCancelable(true);
emailDialog.setContentView(R.layout.zoom_imge);
ImageView image = (ImageView) emailDialog.findViewById(R.id.zoom_image_img);
emailDialog.show();
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, image, options);
}
});
return vi;
}
}

Get schedule
public class GetSchedule extends Activity {
// JSON Node Names
private static final String TAG_SNO = "sno";
private static final String TAG_STNCODE = "stnCode";
private static final String TAG_STATION = "station";
// private static final String TAG_ROUTENO= "routeNo";
private static final String TAG_ARRIVALTIME = "arrivalTime";
private static final String TAG_DEPTIME = "depTime";
private JSONArray station = null;
private ListView list;
//private static String url = "http://railpnrapi.com/api/route/train/";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_schedule);
try {
ArrayList<HashMap<String, String>> stnNamelist = new ArrayList<HashMap<String, String>>();
// Getting JSON Array
// JSONObject job = new JSONObject();
//JSONArray jArray = ModuleClass.trainScheduleJSONObject.getJSONArray("stnName");
JSONObject json_data = null;
station= ModuleClass.trainScheduleJSONObject.getJSONArray(TAG_STATION);
for (int i = 0; i < station.length(); i++) {
json_data = station.getJSONObject(i);
// JSONObject c = stnName.getJSONObject(0);
// Storing  JSON item in a Variable
String sno = json_data.getString(TAG_SNO);
String stnCode = json_data.getString(TAG_STNCODE);
// String distance= c.getString(TAG_DISTANCE);
// String routeNo = c.getString(TAG_ROUTENO);
String arrivalTime = json_data.getString(TAG_ARRIVALTIME);
String depTime = json_data.getString(TAG_DEPTIME);
// String haltTime = c.getString(TAG_HALTTIME);
// String tday= c.getString(TAG_TDAY);
// String remark = c.getString(TAG_REMARK);
// Adding value HashMap key => value
stnNamelist = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_SNO, sno);
map.put(TAG_STNCODE, stnCode);
map.put(TAG_DEPTIME, depTime);
map.put(TAG_ARRIVALTIME, arrivalTime);
// map.put(TAG_DEPTIME,depTime );
stnNamelist.add(map);
list = (ListView) findViewById(R.id.listView1);
final SimpleAdapter sd;
sd = new SimpleAdapter(this, stnNamelist, R.layout.activity_get_schedule,
new String[] { TAG_SNO, TAG_STNCODE, TAG_ARRIVALTIME, TAG_DEPTIME },
new int[] { R.id.textView1, R.id.textView2, R.id.textView3, R.id.textView4});
list.setAdapter(sd);
/*
* list.setOnItemClickListener(new
* AdapterView.OnItemClickListener() {
*
* #Override public void onItemClick(AdapterView<?> parent, View
* view, int position, long id) { Toast.makeText(
* MainActivity.this, "You Clicked at " +
* stnNamelist.get(+position).get( "name"), Toast.LENGTH_SHORT)
* .show(); } });
*/
}
// Set JSON Data in TextView
// uid.setText(id);
// name1.setText(name);
// email1.setText(email);
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.get_schedule, menu);
return true;
}
}

ListView from JSON data fetched using Retrofit2 service
JSON response
{
"results": [
{
"phone": "+9178XXXX66",
"name": "Olivia"
},
{
"phone": "+9178XXXX66",
"name": "Isla"
},
{
"phone": "+9178XXXX66",
"name": "Emily"
},
{
"phone": "+9178XXXX66",
"name": "Amelia"
},
{
"phone": "+9178XXXX66",
"name": "Sophia"
}],
"statusCode": "1",
"count": "2"
}
In MainActivity.java we will pass JSON data as ArrayList(dummyData)
customListAdapter = new CustomListAdapter(getApplicationContext(), dummyData);
listView = (ListView) findViewById(R.id.listShowJSONData);
listView.setAdapter(customListAdapter);
In custom BaseAdapter our
...
...
#Override
public MyModel getItem(int i) {
return this.users.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(final int i, View view, ViewGroup viewGroup) {
if(view==null)
{
view= LayoutInflater.from(c).inflate(R.layout.json_data_list,viewGroup,false);
}
TextView mUserDetails = (TextView) view.findViewById(R.id.userDetails);
TextView mUserStatus = (TextView) view.findViewById(R.id.userStatus);
Object getrow = this.users.get(i);
LinkedTreeMap<Object,Object> rowmap = (LinkedTreeMap) getrow;
String name = rowmap.get("name").toString();
String phone = rowmap.get("phone").toString();
mUserDetails.setText(name);
mUserStatus.setText(phone);
return view;
}
...
...
Here MyModel will be used as custom mapping model of response we will get from service
See link for complete code explanation

getView Returning Rows Multiple Times

I am doing some troubleshooting on my code, I have noticed that sometimes the listview row is returned multiple times when I post new data instead of once. I am reading contents of the listview row from database and projecting it into the else if statement of getView (commented out the Bitmap to test with textview, still having same problem)
getView:
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View row=convertView;
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (request_my_username.equals(arrRequest_UserContact.get(position))) //YOU
{
if (Request_Message.get(position).equals("MESSAGE-FAILED-TO-POST"))
{
row = inflater.inflate(R.layout.activity_chatprivate_single_right, parent, false);
TextView txtMessage = (TextView) row.findViewById(R.id.textMessage);
txtMessage.setTypeface(null, Typeface.BOLD);
txtMessage.setText(Request_Message.get(position));
}
else if (Request_Message.get(position).contains("/storage/"))
{
/***
row = inflater.inflate(R.layout.activity_chatprivate_single_right_img, parent, false);
Bitmap bmp_ico = BitmapFactory.decodeFile(Request_Message.get(position));
ImageButton ib = (ImageButton) row.findViewById(R.id.ib);
ib.setImageBitmap(bmp_ico);
***/
row = inflater.inflate(R.layout.activity_chatprivate_single_right, parent, false);
TextView txtMessage = (TextView) row.findViewById(R.id.textMessage);
txtMessage.setText(Request_Message.get(position));
}
else
{
row = inflater.inflate(R.layout.activity_chatprivate_single_right, parent, false);
TextView txtMessage = (TextView) row.findViewById(R.id.textMessage);
txtMessage.setText(Request_Message.get(position));
}
}
Read MySQL:
private class JsonReadChatPrivate extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... params) {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(params[0]);
try {
HttpResponse response = httpclient.execute(httppost);
jsonResult = inputStreamToString(response.getEntity().getContent()).toString();
}
catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
private StringBuilder inputStreamToString(InputStream is) {
String rLine = "";
StringBuilder answer = new StringBuilder();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
try {
while ((rLine = rd.readLine()) != null) {
answer.append(rLine);
}
}
catch (IOException e) {
}
return answer;
}
#Override
protected void onPostExecute(String result) {
adapter.notifyDataSetChanged();
try{
ListDrawer_readPrivateChat(); //has ConnectionException (when it cannot reach server)
}catch (Exception e){
}
}
}
public void accessWebService_readChatPrivate() {
JsonReadChatPrivate task = new JsonReadChatPrivate();
task.execute(new String[] { "http://website/php/file_to_read_db.php?pcontactSelected="+contactSelected+"&pIMEI="+IMEI+"&pmysql_room_id="+mysql_room_id});
}
public void ListDrawer_readPrivateChat() {
try {
JSONObject jsonResponse = new JSONObject(jsonResult);
JSONArray jsonMainNode = jsonResponse.optJSONArray("request_chat_private");
for (int i = 0; i < jsonMainNode.length(); i++) {
JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);
String request_message = jsonChildNode.optString("Message");
String request_time = jsonChildNode.optString("Time");
mysql_room_id = jsonChildNode.optString("_id");
request_last_user = jsonChildNode.optString("LastUser");
arrRequest_UserContact.add(request_last_user);
arrRequest_Message.add(request_message);
arrRequest_Time.add(request_time);
adapter.notifyDataSetChanged();
}
} catch (JSONException e) {
}
}
Listening every 5 seconds to see if there is any new data on MySQL and if there is, return only the contents from the last MySQL ID (so that I do not re-add items that exist onto the listview):
private void DBListern() {
accessWebService_readChatPrivate();
}
private void loop() {
handler.postDelayed(new Runnable() {
public void run() {
DBListern();
handler.postDelayed(this, 5000);
}
}, 5000);
}
XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#drawable/bg_chat_2"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="1"
>
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:transcriptMode="normal"
android:stackFromBottom="true"
android:divider="#null"
android:dividerHeight="0dp"
>
</ListView>
</LinearLayout>
...
With above said, when I post content as A then B then C it should return the correct output as A, B, C however it does this A, AA, BBB, CCCC <-- repeating the view with same data.

OK, I continued troubleshooting with logs and toasts, the problem was not the getView, it was actually the selecting of image from gallery, when doing so it calls onPauce() and after selecting an image it then calls onResume which runs the loop() call again while it as already running. All I did was cancel the previous loop (handler.removeCallbacksAndMessages(null);) as it will be called again with onResume
I admit my focus was more on the getView code of the listView, I never thought selecting an image calls system methods. Always good to work with logs.

How can i parse JSON from URL on Android and display it in listview [duplicate]

I am new to android and java.Recently I am having problem with displaying fetched json data into listview using baseadapter.
At first I have used this code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ArrayAdapter<String> adapter = new ArrayAdapter<String> (MainActivity.this,R.layout.test_tuh,stringArray);
ListView list= (ListView) findViewById(R.id.listView1);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
public 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;
}
}
This code displays fetched json data sucessfully. But it only displays only one row. I need more than one (two) rows in listview. So I have tried this code
and it does not work, it shows a blank screen .
My code is below,
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
String response = result.toString();
try {
arrayList=new ArrayList<get_set>();
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ListView listView;
adap= new BaseAdapter() {
LayoutInflater inflater=(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
#Override
public View getView(int position, View view, ViewGroup viewgroup) {
if (view==null) {
view=inflater.inflate(R.layout.bsdi, null);
}
TextView title_tuh=(TextView) view.findViewById(R.id.title1);
TextView notice_tuh=(TextView) view.findViewById(R.id.notice1);
title_tuh.setText(arrayList.get(position).getTitle());
notice_tuh=.setText(arrayList.get(position).getNotice());
return view;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return arrayList.get(position);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return arrayList.size();
}
};
listView=(ListView) findViewById(R.id.listView1);
listView.setAdapter(adap);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
As far I am realizing that , the problem is here
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
As far I am guesing that extracted json data is storing in stringArray but its not used later. If I try to use it like this , then I get error
title_tuh.setText(stringArray .get(position).getTitle());
notice_tuh=.setText(stringArray .get(position).getNotice());
If I try to not to use
ArrayList stringArray = new ArrayList();
and use
arrayList=new ArrayList(); instead , like this then I also get error.
arrayList=new ArrayList<get_set>();
JSONArray new_array = new JSONArray(response);
//JSONArray jsonArray = new JSONArray();
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
arrayList.add(jsonObject.getString("title").toString());
// String in = mInflater.inflate(R.layout.custom_row_view, null);
}
catch (JSONException e) {
e.printStackTrace();
}
}
I can not finding out how to solve this problem.I have seen many online tutorials but those was not helpful for me. Please help me.

First u need t create row_listitem.xml file like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:background="#drawable/list_selector"
android:orientation="vertical"
android:padding="5dp" >
<ImageView
android:id="#+id/iv_icon_social"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_centerVertical="true"
android:background="#drawable/image_border"
android:src="#drawable/sms_t"
android:visibility="gone" />
<LinearLayout
android:id="#+id/thumbnail"
android:layout_width="fill_parent"
android:layout_height="85dp"
android:layout_marginRight="50dp"
android:layout_marginTop="0dp"
android:layout_toRightOf="#+id/iv_icon_social"
android:gravity="center_vertical"
android:orientation="vertical"
android:padding="5dip"
android:visibility="visible" >
<TextView
android:id="#+id/txt_ttlsm_row"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:text="Sample text"
android:textSize="18dp"
android:textStyle="bold" />
<TextView
android:id="#+id/txt_ttlcontact_row2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="0dp"
android:layout_marginTop="3dp"
android:paddingLeft="10dp"
android:maxEms="20"
android:maxLines="2"
android:singleLine="false"
android:ellipsize="end"
android:text="Sample text2"
android:textColor="#808080"
android:textSize="15dp"
android:textStyle="normal"
android:visibility="visible" />
</LinearLayout>
</RelativeLayout>
Now, u need to create Custom BaseAdapter like:
public class BaseAdapter2 extends BaseAdapter {
private Activity activity;
// private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public BaseAdapter2(Activity a, ArrayList b, ArrayList bod) {
activity = a;
this.title = b;
this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.row_listitem, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt_ttlsm_row); // title
String song = title.get(position).toString();
title2.setText(song);
TextView title22 = (TextView) vi.findViewById(R.id.txt_ttlcontact_row2); // notice
String song2 = notice.get(position).toString();
title22.setText(song2);
return vi;
}
}
Now, u can set up your main activity like:
public class MainActivity extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
BaseAdapter2 adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.listView1);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new BaseAdapter2(MainActivity.this, title_array, notice_array);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
}
}

#Allen Chun , actually its not in my mind currently that what I have changed in my code to run my code perfectly. But I am sharing all my codes which are working perfectly.
Its my layout code,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/fsr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Notice Board"
android:textSize="20px" />
<TextView
android:id="#+id/err_msg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/list_notice2"
android:layout_gravity="center" />
</LinearLayout>
This is my custom listview layout codes,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:paddingTop="10dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceMedium" />
/>
<TextView
android:id="#+id/notice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Small Text"
android:paddingTop="5dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
its my activity named "NoticeBoard" .
public class NoticeBoard extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
base_adapter3 adapter;
TextView f,msg;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_notice);
list = (ListView) findViewById(R.id.list_notice2);
msg=(TextView) findViewById(R.id.err_msg);
new test_ays().execute();
}
class test_ays extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null ;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if(result!=null) // add this
{
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new base_adapter3(NoticeBoard.this, title_array, notice_array);
list.setAdapter(adapter);
// f=(TextView) findViewById(R.id.textTuh);
// f.setText(title_array);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
else{
msg.setText("You need a working data connection...");
}
}
}
}
And its my custom baseadapter codes,
public class base_adapter2 extends BaseAdapter {
private Activity activity;
//private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public base_adapter2(Activity a, ArrayList b) {
activity = a;
this.title = b;
// this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.bsdi_adapter, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt1); // title
String song = title.get(position).toString();
title2.setText(song);
return vi;
}
}

In this example, I am connecting to Twitters public timeline JSON url.
package net.inchoo.demo.andy1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class HomeActivity extends ListActivity {
/** Called when the activity is first created. */
#SuppressWarnings({ "rawtypes", "unchecked" })
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, this.fetchTwitterPublicTimeline()));
}
public ArrayList<String> fetchTwitterPublicTimeline()
{
ArrayList<String> listItems = new ArrayList<String>();
try {
URL twitter = new URL(
"http://twitter.com/statuses/public_timeline.json");
URLConnection tc = twitter.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
JSONArray ja = new JSONArray(line);
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
listItems.add(jo.getString("text"));
}
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return listItems;
}
}
Please direct your attention on the listItems.add(jo.getString(“text”)); line. This is the part that I am grabbing a “text” attribute/property of single JSON object. To get a more “visual” picture of all available attributes/properties you might want to take a look at the XML version of twitters public timeline. This way you will get nice colored XML in your browser, where you can see all available attributes.
Link: http://inchoo.net/dev-talk/android-development/simple-android-json-parsing-example-with-output-into-listactivity/

Json parser:
public class jparser {
static InputStream istream = null;
static JSONObject jObj = null;
//static JSONArray jarray=null;
static String json = "";
//static JSONArray jarray = null;
// constructor
public jparser() {
}
public JSONObject getJFromUrl(String url) {
// Making HTTP request
//try {
// defaultHttpClient
StringBuilder builder = new StringBuilder();
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
/*HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
istream = httpEntity.getContent();*/
try{
HttpResponse response = httpClient.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 400)
{
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null)
{
builder.append(line);
}
}
else
{
Log.e("==>", "Failed to download file");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(istream, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
istream.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
// Parse String to JSON object
/*try {
jarray = new JSONArray( builder.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON Object
return jarray;
}*/
}
}

public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
#SuppressLint("NewApi")
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
<h1>Model</h1>
public class WorkModel {
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImagename() {
return imagename;
}
public void setImagename(String imagename) {
this.imagename = imagename;
}
String id,name,imagename;
public WorkModel(String s1,String s2,String s3)
{
this.id=s1;
name=s2;
imagename=s3;
}
}
<h1>listview fill</h1>
public class Work_in_process extends Fragment {
//////////////jsonparser implement
JSONParser jsonparser=new JSONParser();
JSONArray json_users=null;
JSONObject json;
/////////
ListView lst;
ArrayList<WorkModel> data=new ArrayList<WorkModel>();
WorkAdapter adapter;
Context con;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_work_in_process, container, false);
con=this.getActivity();
lst=(ListView)rootView.findViewById(R.id.work_listview);
new work_process().execute();
// Inflate the layout for this fragment
return rootView;
}
class work_process extends AsyncTask<String,String,String>
{
public Dialog pDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(con);
pDialog.setMessage("Loading... Please wait...");
pDialog.setIndeterminate(true);
pDialog.setCancelable(true);
pDialog.show();
}
#Override
protected String doInBackground(String... args) {
data.clear();
List<NameValuePair> params = new ArrayList<NameValuePair>();
json = jsonparser.makeHttpRequest("your url","POST", params);
try {
int success = json.getInt("status");
if (success == 0)
{
return "kbc";
}
else
{
json_users = json.getJSONArray("result");
// looping through All Products
for (int i = 0; i < json_users.length(); i++) {
JSONObject c = json_users.getJSONObject(i);
String t1 = c.getString("id");
String t2 = c.getString("work_title");
String t3 = c.getString("image_path");
WorkModel da=new WorkModel(t1,t2,t3);
data.add(da);
}
return "abc";
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
pDialog.dismiss();
if(s.equals("abc"))
{
adapter = new WorkAdapter(con, data);
lst.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else
{
}
}
}
}
<h1>Adapter fill listview</h1>
public class WorkAdapter extends BaseAdapter {
private LayoutInflater inflater1=null;
private static String string=null;
ArrayList<WorkModel> data=null;
Context activity;
DisplayImageOptions options;
protected ImageLoader imageLoader = ImageLoader.getInstance();
public WorkAdapter(Context act,ArrayList<WorkModel> da)
{
activity=act;
data=da;
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
{
inflater1=(LayoutInflater)parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vi=inflater1.inflate(R.layout.list_work,null);
}
TextView name;
ImageView img;
name=(TextView)vi.findViewById(R.id.list_work_name);
img= (ImageView)vi.findViewById(R.id.list_work_img);
WorkModel da=new WorkModel(string,string,string);
da=data.get(position);
final String p1,p2,p3;
p1=da.getId();
p2=da.getName();
p3=da.getImagename();
name.setText(p2);
imageLoader.init(ImageLoaderConfiguration.createDefault(activity));
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, img,options);
img.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DisplayImageOptions options;
final ImageLoader imageLoader = ImageLoader.getInstance();
final Dialog emailDialog =new Dialog(activity, android.R.style.Theme_DeviceDefault);
emailDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
emailDialog.setCancelable(true);
emailDialog.setContentView(R.layout.zoom_imge);
ImageView image = (ImageView) emailDialog.findViewById(R.id.zoom_image_img);
emailDialog.show();
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, image, options);
}
});
return vi;
}
}

Get schedule
public class GetSchedule extends Activity {
// JSON Node Names
private static final String TAG_SNO = "sno";
private static final String TAG_STNCODE = "stnCode";
private static final String TAG_STATION = "station";
// private static final String TAG_ROUTENO= "routeNo";
private static final String TAG_ARRIVALTIME = "arrivalTime";
private static final String TAG_DEPTIME = "depTime";
private JSONArray station = null;
private ListView list;
//private static String url = "http://railpnrapi.com/api/route/train/";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_schedule);
try {
ArrayList<HashMap<String, String>> stnNamelist = new ArrayList<HashMap<String, String>>();
// Getting JSON Array
// JSONObject job = new JSONObject();
//JSONArray jArray = ModuleClass.trainScheduleJSONObject.getJSONArray("stnName");
JSONObject json_data = null;
station= ModuleClass.trainScheduleJSONObject.getJSONArray(TAG_STATION);
for (int i = 0; i < station.length(); i++) {
json_data = station.getJSONObject(i);
// JSONObject c = stnName.getJSONObject(0);
// Storing  JSON item in a Variable
String sno = json_data.getString(TAG_SNO);
String stnCode = json_data.getString(TAG_STNCODE);
// String distance= c.getString(TAG_DISTANCE);
// String routeNo = c.getString(TAG_ROUTENO);
String arrivalTime = json_data.getString(TAG_ARRIVALTIME);
String depTime = json_data.getString(TAG_DEPTIME);
// String haltTime = c.getString(TAG_HALTTIME);
// String tday= c.getString(TAG_TDAY);
// String remark = c.getString(TAG_REMARK);
// Adding value HashMap key => value
stnNamelist = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_SNO, sno);
map.put(TAG_STNCODE, stnCode);
map.put(TAG_DEPTIME, depTime);
map.put(TAG_ARRIVALTIME, arrivalTime);
// map.put(TAG_DEPTIME,depTime );
stnNamelist.add(map);
list = (ListView) findViewById(R.id.listView1);
final SimpleAdapter sd;
sd = new SimpleAdapter(this, stnNamelist, R.layout.activity_get_schedule,
new String[] { TAG_SNO, TAG_STNCODE, TAG_ARRIVALTIME, TAG_DEPTIME },
new int[] { R.id.textView1, R.id.textView2, R.id.textView3, R.id.textView4});
list.setAdapter(sd);
/*
* list.setOnItemClickListener(new
* AdapterView.OnItemClickListener() {
*
* #Override public void onItemClick(AdapterView<?> parent, View
* view, int position, long id) { Toast.makeText(
* MainActivity.this, "You Clicked at " +
* stnNamelist.get(+position).get( "name"), Toast.LENGTH_SHORT)
* .show(); } });
*/
}
// Set JSON Data in TextView
// uid.setText(id);
// name1.setText(name);
// email1.setText(email);
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.get_schedule, menu);
return true;
}
}

ListView from JSON data fetched using Retrofit2 service
JSON response
{
"results": [
{
"phone": "+9178XXXX66",
"name": "Olivia"
},
{
"phone": "+9178XXXX66",
"name": "Isla"
},
{
"phone": "+9178XXXX66",
"name": "Emily"
},
{
"phone": "+9178XXXX66",
"name": "Amelia"
},
{
"phone": "+9178XXXX66",
"name": "Sophia"
}],
"statusCode": "1",
"count": "2"
}
In MainActivity.java we will pass JSON data as ArrayList(dummyData)
customListAdapter = new CustomListAdapter(getApplicationContext(), dummyData);
listView = (ListView) findViewById(R.id.listShowJSONData);
listView.setAdapter(customListAdapter);
In custom BaseAdapter our
...
...
#Override
public MyModel getItem(int i) {
return this.users.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(final int i, View view, ViewGroup viewGroup) {
if(view==null)
{
view= LayoutInflater.from(c).inflate(R.layout.json_data_list,viewGroup,false);
}
TextView mUserDetails = (TextView) view.findViewById(R.id.userDetails);
TextView mUserStatus = (TextView) view.findViewById(R.id.userStatus);
Object getrow = this.users.get(i);
LinkedTreeMap<Object,Object> rowmap = (LinkedTreeMap) getrow;
String name = rowmap.get("name").toString();
String phone = rowmap.get("phone").toString();
mUserDetails.setText(name);
mUserStatus.setText(phone);
return view;
}
...
...
Here MyModel will be used as custom mapping model of response we will get from service
See link for complete code explanation

how to display fetched json data into listview using baseadapter

I am new to android and java.Recently I am having problem with displaying fetched json data into listview using baseadapter.
At first I have used this code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ArrayAdapter<String> adapter = new ArrayAdapter<String> (MainActivity.this,R.layout.test_tuh,stringArray);
ListView list= (ListView) findViewById(R.id.listView1);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
public 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;
}
}
This code displays fetched json data sucessfully. But it only displays only one row. I need more than one (two) rows in listview. So I have tried this code
and it does not work, it shows a blank screen .
My code is below,
class TheTask extends AsyncTask<Void,Void,String>
{
#Override
protected String doInBackground(Void... params) {
String str = null;
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
String response = result.toString();
try {
arrayList=new ArrayList<get_set>();
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
ListView listView;
adap= new BaseAdapter() {
LayoutInflater inflater=(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
#Override
public View getView(int position, View view, ViewGroup viewgroup) {
if (view==null) {
view=inflater.inflate(R.layout.bsdi, null);
}
TextView title_tuh=(TextView) view.findViewById(R.id.title1);
TextView notice_tuh=(TextView) view.findViewById(R.id.notice1);
title_tuh.setText(arrayList.get(position).getTitle());
notice_tuh=.setText(arrayList.get(position).getNotice());
return view;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return arrayList.get(position);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return arrayList.size();
}
};
listView=(ListView) findViewById(R.id.listView1);
listView.setAdapter(adap);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
//tv.setText("error2");
}
}
As far I am realizing that , the problem is here
ArrayList<String> stringArray = new ArrayList<String>();
JSONArray new_array = new JSONArray(response);
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
stringArray.add(jsonObject.getString("title").toString());
}
catch (JSONException e) {
e.printStackTrace();
}
}
As far I am guesing that extracted json data is storing in stringArray but its not used later. If I try to use it like this , then I get error
title_tuh.setText(stringArray .get(position).getTitle());
notice_tuh=.setText(stringArray .get(position).getNotice());
If I try to not to use
ArrayList stringArray = new ArrayList();
and use
arrayList=new ArrayList(); instead , like this then I also get error.
arrayList=new ArrayList<get_set>();
JSONArray new_array = new JSONArray(response);
//JSONArray jsonArray = new JSONArray();
for(int i = 0, count = new_array.length(); i< count; i++)
{
try {
JSONObject jsonObject = new_array.getJSONObject(i);
arrayList.add(jsonObject.getString("title").toString());
// String in = mInflater.inflate(R.layout.custom_row_view, null);
}
catch (JSONException e) {
e.printStackTrace();
}
}
I can not finding out how to solve this problem.I have seen many online tutorials but those was not helpful for me. Please help me.

First u need t create row_listitem.xml file like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:background="#drawable/list_selector"
android:orientation="vertical"
android:padding="5dp" >
<ImageView
android:id="#+id/iv_icon_social"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_centerVertical="true"
android:background="#drawable/image_border"
android:src="#drawable/sms_t"
android:visibility="gone" />
<LinearLayout
android:id="#+id/thumbnail"
android:layout_width="fill_parent"
android:layout_height="85dp"
android:layout_marginRight="50dp"
android:layout_marginTop="0dp"
android:layout_toRightOf="#+id/iv_icon_social"
android:gravity="center_vertical"
android:orientation="vertical"
android:padding="5dip"
android:visibility="visible" >
<TextView
android:id="#+id/txt_ttlsm_row"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="10dp"
android:text="Sample text"
android:textSize="18dp"
android:textStyle="bold" />
<TextView
android:id="#+id/txt_ttlcontact_row2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="0dp"
android:layout_marginTop="3dp"
android:paddingLeft="10dp"
android:maxEms="20"
android:maxLines="2"
android:singleLine="false"
android:ellipsize="end"
android:text="Sample text2"
android:textColor="#808080"
android:textSize="15dp"
android:textStyle="normal"
android:visibility="visible" />
</LinearLayout>
</RelativeLayout>
Now, u need to create Custom BaseAdapter like:
public class BaseAdapter2 extends BaseAdapter {
private Activity activity;
// private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public BaseAdapter2(Activity a, ArrayList b, ArrayList bod) {
activity = a;
this.title = b;
this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.row_listitem, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt_ttlsm_row); // title
String song = title.get(position).toString();
title2.setText(song);
TextView title22 = (TextView) vi.findViewById(R.id.txt_ttlcontact_row2); // notice
String song2 = notice.get(position).toString();
title22.setText(song2);
return vi;
}
}
Now, u can set up your main activity like:
public class MainActivity extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
BaseAdapter2 adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView) findViewById(R.id.listView1);
new TheTask().execute();
}
class TheTask extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new BaseAdapter2(MainActivity.this, title_array, notice_array);
list.setAdapter(adapter);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
}
}

#Allen Chun , actually its not in my mind currently that what I have changed in my code to run my code perfectly. But I am sharing all my codes which are working perfectly.
Its my layout code,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/fsr"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Notice Board"
android:textSize="20px" />
<TextView
android:id="#+id/err_msg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:gravity="center" />
<ListView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="#+id/list_notice2"
android:layout_gravity="center" />
</LinearLayout>
This is my custom listview layout codes,
<?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"
android:orientation="vertical" >
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:paddingTop="10dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceMedium" />
/>
<TextView
android:id="#+id/notice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Small Text"
android:paddingTop="5dp"
android:layout_gravity="center"
android:textAppearance="?android:attr/textAppearanceSmall" />
</LinearLayout>
its my activity named "NoticeBoard" .
public class NoticeBoard extends Activity {
ArrayList<String> title_array = new ArrayList<String>();
ArrayList<String> notice_array = new ArrayList<String>();
ListView list;
base_adapter3 adapter;
TextView f,msg;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_notice);
list = (ListView) findViewById(R.id.list_notice2);
msg=(TextView) findViewById(R.id.err_msg);
new test_ays().execute();
}
class test_ays extends AsyncTask<Void, Void, String> {
#Override
protected String doInBackground(Void... params) {
String str = null ;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/BSDI/show.php");
HttpResponse response = httpclient.execute(httppost);
str = EntityUtils.toString(response.getEntity());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return str;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if(result!=null) // add this
{
String response = result.toString();
try {
JSONArray new_array = new JSONArray(response);
for (int i = 0, count = new_array.length(); i < count; i++) {
try {
JSONObject jsonObject = new_array.getJSONObject(i);
title_array.add(jsonObject.getString("title").toString());
notice_array.add(jsonObject.getString("notice").toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
adapter = new base_adapter3(NoticeBoard.this, title_array, notice_array);
list.setAdapter(adapter);
// f=(TextView) findViewById(R.id.textTuh);
// f.setText(title_array);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
// tv.setText("error2");
}
}
else{
msg.setText("You need a working data connection...");
}
}
}
}
And its my custom baseadapter codes,
public class base_adapter2 extends BaseAdapter {
private Activity activity;
//private ArrayList<HashMap<String, String>> data;
private static ArrayList title,notice;
private static LayoutInflater inflater = null;
public base_adapter2(Activity a, ArrayList b) {
activity = a;
this.title = b;
// this.notice=bod;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.bsdi_adapter, null);
TextView title2 = (TextView) vi.findViewById(R.id.txt1); // title
String song = title.get(position).toString();
title2.setText(song);
return vi;
}
}

In this example, I am connecting to Twitters public timeline JSON url.
package net.inchoo.demo.andy1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class HomeActivity extends ListActivity {
/** Called when the activity is first created. */
#SuppressWarnings({ "rawtypes", "unchecked" })
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, this.fetchTwitterPublicTimeline()));
}
public ArrayList<String> fetchTwitterPublicTimeline()
{
ArrayList<String> listItems = new ArrayList<String>();
try {
URL twitter = new URL(
"http://twitter.com/statuses/public_timeline.json");
URLConnection tc = twitter.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
JSONArray ja = new JSONArray(line);
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
listItems.add(jo.getString("text"));
}
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return listItems;
}
}
Please direct your attention on the listItems.add(jo.getString(“text”)); line. This is the part that I am grabbing a “text” attribute/property of single JSON object. To get a more “visual” picture of all available attributes/properties you might want to take a look at the XML version of twitters public timeline. This way you will get nice colored XML in your browser, where you can see all available attributes.
Link: http://inchoo.net/dev-talk/android-development/simple-android-json-parsing-example-with-output-into-listactivity/

Json parser:
public class jparser {
static InputStream istream = null;
static JSONObject jObj = null;
//static JSONArray jarray=null;
static String json = "";
//static JSONArray jarray = null;
// constructor
public jparser() {
}
public JSONObject getJFromUrl(String url) {
// Making HTTP request
//try {
// defaultHttpClient
StringBuilder builder = new StringBuilder();
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
/*HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
istream = httpEntity.getContent();*/
try{
HttpResponse response = httpClient.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 400)
{
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null)
{
builder.append(line);
}
}
else
{
Log.e("==>", "Failed to download file");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(istream, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
istream.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
// Parse String to JSON object
/*try {
jarray = new JSONArray( builder.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON Object
return jarray;
}*/
}
}

public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
#SuppressLint("NewApi")
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
<h1>Model</h1>
public class WorkModel {
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getImagename() {
return imagename;
}
public void setImagename(String imagename) {
this.imagename = imagename;
}
String id,name,imagename;
public WorkModel(String s1,String s2,String s3)
{
this.id=s1;
name=s2;
imagename=s3;
}
}
<h1>listview fill</h1>
public class Work_in_process extends Fragment {
//////////////jsonparser implement
JSONParser jsonparser=new JSONParser();
JSONArray json_users=null;
JSONObject json;
/////////
ListView lst;
ArrayList<WorkModel> data=new ArrayList<WorkModel>();
WorkAdapter adapter;
Context con;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_work_in_process, container, false);
con=this.getActivity();
lst=(ListView)rootView.findViewById(R.id.work_listview);
new work_process().execute();
// Inflate the layout for this fragment
return rootView;
}
class work_process extends AsyncTask<String,String,String>
{
public Dialog pDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(con);
pDialog.setMessage("Loading... Please wait...");
pDialog.setIndeterminate(true);
pDialog.setCancelable(true);
pDialog.show();
}
#Override
protected String doInBackground(String... args) {
data.clear();
List<NameValuePair> params = new ArrayList<NameValuePair>();
json = jsonparser.makeHttpRequest("your url","POST", params);
try {
int success = json.getInt("status");
if (success == 0)
{
return "kbc";
}
else
{
json_users = json.getJSONArray("result");
// looping through All Products
for (int i = 0; i < json_users.length(); i++) {
JSONObject c = json_users.getJSONObject(i);
String t1 = c.getString("id");
String t2 = c.getString("work_title");
String t3 = c.getString("image_path");
WorkModel da=new WorkModel(t1,t2,t3);
data.add(da);
}
return "abc";
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
pDialog.dismiss();
if(s.equals("abc"))
{
adapter = new WorkAdapter(con, data);
lst.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else
{
}
}
}
}
<h1>Adapter fill listview</h1>
public class WorkAdapter extends BaseAdapter {
private LayoutInflater inflater1=null;
private static String string=null;
ArrayList<WorkModel> data=null;
Context activity;
DisplayImageOptions options;
protected ImageLoader imageLoader = ImageLoader.getInstance();
public WorkAdapter(Context act,ArrayList<WorkModel> da)
{
activity=act;
data=da;
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi=convertView;
if(convertView==null)
{
inflater1=(LayoutInflater)parent.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
vi=inflater1.inflate(R.layout.list_work,null);
}
TextView name;
ImageView img;
name=(TextView)vi.findViewById(R.id.list_work_name);
img= (ImageView)vi.findViewById(R.id.list_work_img);
WorkModel da=new WorkModel(string,string,string);
da=data.get(position);
final String p1,p2,p3;
p1=da.getId();
p2=da.getName();
p3=da.getImagename();
name.setText(p2);
imageLoader.init(ImageLoaderConfiguration.createDefault(activity));
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, img,options);
img.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
DisplayImageOptions options;
final ImageLoader imageLoader = ImageLoader.getInstance();
final Dialog emailDialog =new Dialog(activity, android.R.style.Theme_DeviceDefault);
emailDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
emailDialog.setCancelable(true);
emailDialog.setContentView(R.layout.zoom_imge);
ImageView image = (ImageView) emailDialog.findViewById(R.id.zoom_image_img);
emailDialog.show();
final String imgpath=""+p3;
options = new DisplayImageOptions.Builder()
.showImageOnLoading(R.drawable.wp_loading)
.showImageForEmptyUri(R.drawable.wp_loading)
.showImageOnFail(R.drawable.wp_loading)
.cacheInMemory(true)
.cacheOnDisk(true)
.build();
imageLoader.displayImage(imgpath, image, options);
}
});
return vi;
}
}

Get schedule
public class GetSchedule extends Activity {
// JSON Node Names
private static final String TAG_SNO = "sno";
private static final String TAG_STNCODE = "stnCode";
private static final String TAG_STATION = "station";
// private static final String TAG_ROUTENO= "routeNo";
private static final String TAG_ARRIVALTIME = "arrivalTime";
private static final String TAG_DEPTIME = "depTime";
private JSONArray station = null;
private ListView list;
//private static String url = "http://railpnrapi.com/api/route/train/";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_schedule);
try {
ArrayList<HashMap<String, String>> stnNamelist = new ArrayList<HashMap<String, String>>();
// Getting JSON Array
// JSONObject job = new JSONObject();
//JSONArray jArray = ModuleClass.trainScheduleJSONObject.getJSONArray("stnName");
JSONObject json_data = null;
station= ModuleClass.trainScheduleJSONObject.getJSONArray(TAG_STATION);
for (int i = 0; i < station.length(); i++) {
json_data = station.getJSONObject(i);
// JSONObject c = stnName.getJSONObject(0);
// Storing  JSON item in a Variable
String sno = json_data.getString(TAG_SNO);
String stnCode = json_data.getString(TAG_STNCODE);
// String distance= c.getString(TAG_DISTANCE);
// String routeNo = c.getString(TAG_ROUTENO);
String arrivalTime = json_data.getString(TAG_ARRIVALTIME);
String depTime = json_data.getString(TAG_DEPTIME);
// String haltTime = c.getString(TAG_HALTTIME);
// String tday= c.getString(TAG_TDAY);
// String remark = c.getString(TAG_REMARK);
// Adding value HashMap key => value
stnNamelist = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_SNO, sno);
map.put(TAG_STNCODE, stnCode);
map.put(TAG_DEPTIME, depTime);
map.put(TAG_ARRIVALTIME, arrivalTime);
// map.put(TAG_DEPTIME,depTime );
stnNamelist.add(map);
list = (ListView) findViewById(R.id.listView1);
final SimpleAdapter sd;
sd = new SimpleAdapter(this, stnNamelist, R.layout.activity_get_schedule,
new String[] { TAG_SNO, TAG_STNCODE, TAG_ARRIVALTIME, TAG_DEPTIME },
new int[] { R.id.textView1, R.id.textView2, R.id.textView3, R.id.textView4});
list.setAdapter(sd);
/*
* list.setOnItemClickListener(new
* AdapterView.OnItemClickListener() {
*
* #Override public void onItemClick(AdapterView<?> parent, View
* view, int position, long id) { Toast.makeText(
* MainActivity.this, "You Clicked at " +
* stnNamelist.get(+position).get( "name"), Toast.LENGTH_SHORT)
* .show(); } });
*/
}
// Set JSON Data in TextView
// uid.setText(id);
// name1.setText(name);
// email1.setText(email);
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.get_schedule, menu);
return true;
}
}

ListView from JSON data fetched using Retrofit2 service
JSON response
{
"results": [
{
"phone": "+9178XXXX66",
"name": "Olivia"
},
{
"phone": "+9178XXXX66",
"name": "Isla"
},
{
"phone": "+9178XXXX66",
"name": "Emily"
},
{
"phone": "+9178XXXX66",
"name": "Amelia"
},
{
"phone": "+9178XXXX66",
"name": "Sophia"
}],
"statusCode": "1",
"count": "2"
}
In MainActivity.java we will pass JSON data as ArrayList(dummyData)
customListAdapter = new CustomListAdapter(getApplicationContext(), dummyData);
listView = (ListView) findViewById(R.id.listShowJSONData);
listView.setAdapter(customListAdapter);
In custom BaseAdapter our
...
...
#Override
public MyModel getItem(int i) {
return this.users.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(final int i, View view, ViewGroup viewGroup) {
if(view==null)
{
view= LayoutInflater.from(c).inflate(R.layout.json_data_list,viewGroup,false);
}
TextView mUserDetails = (TextView) view.findViewById(R.id.userDetails);
TextView mUserStatus = (TextView) view.findViewById(R.id.userStatus);
Object getrow = this.users.get(i);
LinkedTreeMap<Object,Object> rowmap = (LinkedTreeMap) getrow;
String name = rowmap.get("name").toString();
String phone = rowmap.get("phone").toString();
mUserDetails.setText(name);
mUserStatus.setText(phone);
return view;
}
...
...
Here MyModel will be used as custom mapping model of response we will get from service
See link for complete code explanation

Parsing JSON Data to a list View

I am trying to parse the data into the list View in android
JSON:: http://54.218.73.244:7000/
It has a JSON output :: [{"restaurantID":1,"restaurantNAME":"CopperChimney"},{"restaurantID":2,"restaurantNAME":"Aroy"},{"restaurantID":3,"restaurantNAME":"MarkBoulevard"}]
I am trying to display the CopperChimney, Aroy, MarkBoulevard in a
list view
I figured some small parts but can someone help me fill
AndroidJSONParsingActivity.java part of the code which invoolves putting data in a collection and displaying it
Any ideas ?
JSONParser
public class JSONParser {
static InputStream is = null;
static JSONArray jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
public JSONArray getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONArray(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
Item.java
public class Item{
private String Name;
public Item(String name){
this.Name = name;
}
public String getName(){
return Name;
}
}
ListAdapter.java
public class ListAdapter extends ArrayAdapter<Item> {
private List<Item> items;
public ListAdapter(Context context, int resource, List<Item> items) {
super(context, resource, items);
this.items = items;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
TextView tt = null;
if (v == null) {
LayoutInflater vi;
vi = LayoutInflater.from(getContext());
v = vi.inflate(R.layout.itemlistrow, null);
tt = (TextView) v.findViewById(R.id.RestaurantNameID);
}
Item p = items.get(position);
if (p != null) {
if (tt != null) {
tt.setText(""+p.getName());
}
}
return v;
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="#+id/listViewID"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center">
</ListView>
</LinearLayout>
itemlistrow.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content" android:orientation="vertical"
android:layout_width="fill_parent">
<TableRow android:layout_width="fill_parent"
android:id="#+id/TableRow01"
android:layout_height="wrap_content">
<TextView
android:id="#+id/RestaurantNameID"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="name" android:textStyle="bold"
android:gravity="left"
android:layout_weight="1"
android:typeface="monospace"
android:height="40sp"/>
</TableRow>
</TableLayout>
AndroidJSONParsingActivity.java
public class AndroidJSONParsingActivity extends Activity {
private static String url = "http://54.218.73.244:7000/";
//
//
//
//
/------ CODE -Trying to ADD ------ /
//
//
}
CODE I TRIED FOR AndroidJSONParsingActivity.java
public class AndroidJSONParsingActivity extends Activity {
// url to make request
private static String url = "http://54.218.73.244:7000/";
List<Item> yourData = new ArrayList<Item>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Creating JSON Parser instance
JSONParser jParser = new JSONParser();
// getting JSON string from URL
JSONArray json = jParser.getJSONFromUrl(url);
try {
for (int i = 0; i < json.length(); i++) {
JSONObject c = json.getJSONObject(i);
// Storing each json item in variable
String NAME=c.getString("restaurantNAME");
yourData.add(new Item(NAME));
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ListView yourListView = (ListView) findViewById(R.id.listViewID);
ListAdapter customAdapter = new ListAdapter(this, R.layout.itemlistrow, yourData);
yourListView.setAdapter(customAdapter);
yourListView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
if(position == 0)
{
//code specific to first list item
Intent myIntent = new Intent(AndroidJSONParsingActivity.this,Employee1.class);
startActivity(myIntent);
}else if(position == 1)
{
Intent myIntent = new Intent(AndroidJSONParsingActivity.this,Employee2.class);
startActivity(myIntent);
}
}
});
}
}

public class AndroidJSONParsingActivity extends ListActivity {
ArrayList <Item> list = new ArraList <Item>();
#Override
public void onStart() {
super.onStart();
new GetHttpData().execute();
}
private class GetHttpData extends AsyncTask<Void, Void, Void> {
#Override
protected Void doInBackground(Void... params) {
private static String url = "http://54.218.73.244:7000/";
JSONArray jArray = getJSONFromUrl(url);
int len = jArray.length();
for(int i = 0; i < len; i++) {
JSONObject restaurant = jArray.getJSONObject(i);
list.add(new Item(restaurant.getString("restaurantNAME"));
}
return null;
}
#Override
protected void onPostExecute(Void result) {
setListAdapter(new ListAdapter(AndroidJSONParsingActivity.this, android.R.layout.simple_list_item_1, list));
}
}
}
This is just one way to parse it, you should also do all HttpRequests and JSON parsing in a separate thread, see http://developer.android.com/reference/android/os/AsyncTask.html
Edited:
You can also check this Example

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

JSON Android ListView - android

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