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How to display JSONObject into TextView on android

I've set up a php script to create json here, but when i try to display the JSONobject i got some error like this on my Android Monitor..
Value (html)(body)(script of type java.lang.String cannot be converted to JSONObject
can someone tell me how to fix it? below my code to try
my MainActivity.java
package flix.yudi.okhttp1;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
public class MainActivity extends AppCompatActivity {
private String TAG = MainActivity.class.getSimpleName();
private ProgressDialog pDialog;
private ListView lv;
// URL to get contacts JSON
private static String url = "http://zxccvvv.cuccfree.com/send_data.php";
ArrayList<HashMap<String, String>> contactList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
contactList = new ArrayList<>();
lv = (ListView) findViewById(R.id.list);
new GetContacts().execute();
}
/**
* Async task class to get json by making HTTP call
*/
private class GetContacts extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
#Override
protected Void doInBackground(Void... arg0) {
HttpHandler sh = new HttpHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(url);
Log.e(TAG, "Response from url: " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
JSONArray contacts = jsonObj.getJSONArray("");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
String id = c.getString("id");
String ask = c.getString("ask");
// tmp hash map for single contact
HashMap<String, String> contact = new HashMap<>();
// adding each child node to HashMap key => value
contact.put("id", id);
contact.put("ask", ask);
// adding contact to contact list
contactList.add(contact);
}
} catch (final JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(),
"Json parsing error: " + e.getMessage(),
Toast.LENGTH_LONG)
.show();
}
});
}
} else {
Log.e(TAG, "Couldn't get json from server.");
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(),
"Couldn't get json from server. Check LogCat for possible errors!",
Toast.LENGTH_LONG)
.show();
}
});
}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
MainActivity.this, contactList,
R.layout.list_item, new String[]{"ask"}, new int[]{R.id.ask});
lv.setAdapter(adapter);
}
}
}
my HttpHandler.java
package flix.yudi.okhttp1;
import android.util.Log;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
public class HttpHandler {
private static final String TAG = HttpHandler.class.getSimpleName();
public HttpHandler() {
}
public String makeServiceCall(String reqUrl) {
String response = null;
try {
URL url = new URL(reqUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
// read the response
InputStream in = new BufferedInputStream(conn.getInputStream());
response = convertStreamToString(in);
} catch (MalformedURLException e) {
Log.e(TAG, "MalformedURLException: " + e.getMessage());
} catch (ProtocolException e) {
Log.e(TAG, "ProtocolException: " + e.getMessage());
} catch (IOException e) {
Log.e(TAG, "IOException: " + e.getMessage());
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
return response;
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
try {
while ((line = reader.readLine()) != null) {
sb.append(line).append('\n');
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
I got the reference code from here
someone can help me how to fix the error?
Edited code
if (jsonStr != null) {
try {
JSONArray jsonObj = new JSONArray(jsonStr);
// Getting JSON Array node
JSONArray pertanyaan = jsonObj.getJSONArray("pertanyaan");
// looping through All Contacts
for (int i = 0; i < pertanyaan.length(); i++) {
JSONArray c = pertanyaan.getJSONArray(i);
String id = c.getString("id");
String ask = c.getString("ask");
Edit
Error
I/OpenGLRenderer: Initialized EGL, version 1.4
E/MainActivity: Response from url: <html><body><script type="text/javascript" src="/aes.js" ></script>
<script>function toNumbers(d){var e=[];d.replace(/(..)/g,function(d){e.push(parseInt(d,16))});return e}function
toHex(){for(var d=[],d=1==arguments.length&&arguments[0].constructor==Array?arguments[0]:arguments,e="",f=0;f<d.length;f++)e+=(16>d[f]?"0":"")+d[f].toString(16);return e.toLowerCase()}
var a=toNumbers("f655ba9d09a112d4968c63579db590b4"),b=toNumbers("98344c2eee86c3994890592585b49f80"),c=toNumbers("455e95bd78dbe99a933749187199f824");
document.cookie="__test="+toHex(slowAES.decrypt(c,2,a,b))+"; expires=Thu, 31-Dec-37 23:55:55 GMT; path=/";
location.href="http://zxccvvv.cuccfree.com/send_data.php?i=1";</script><noscript>This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support</noscript></body></html>
E/MainActivity: Json parsing error: Value <html><body><script of type java.lang.String cannot be converted to JSONArray
V/RenderScript: 0x5598622250 Launching thread(s), CPUs 8

If you have access to server then you could make it return a string in the following format:
{"contacts":[{"id":"1","ask":"pertanyaan ke 1"},{"id":"2","ask":"pertanyaan ke 2"},{"id":"3","ask":"pertanyaan ke 3"},{"id":"4","ask":"pertanyaan ke 4"},{"id":"5","ask":"pertanyaan ke 5"}]}
if you want to read it as JSONObject with JSONObject jsonObj = new JSONObject(jsonStr);
and then use JSONArray contacts = jsonObj.getJSONArray("contacts"); to parse it
After your edits:
Change this JSONArray c = pertanyaan.getJSONArray(i); to this JSONObject c = pertanyaan.getJsonObject(i)

Your server response is JsonArray But your trying to parse as Json Object
Change
JSONObject jsonObject = new JSONObject(jsonStr);
To
JSONArray contacts = new JSONArray(jsonStr);
And create the next oprations as JSONArray and not as JSONObject

JSON mplimentation on ListView

I have the following JSON response:
{
"success":1,
"message":"Post Available!",
"posts":[
{
"id":"1",
"name":"hi",
"phone":"123",
"department":"and",
"days":"1",
"reason":"SICK"
},
{
"id":"2",
"name":"at",
"phone":"0000000",
"department":"android",
"days":"60",
"reason":"sick"
},
{
"id":"3",
"name":"as",
"phone":"21",
"department":"as",
"days":"3",
"reason":"git"
},
{
"id":"4",
"name":"abcd",
"phone":"123",
"department":"abcd",
"days":"1",
"reason":"abcd"
}
]
}
How can I implement this on list view?
My JSONParser class as:
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
public JSONObject getJSONFromUrl(final String url) {
// Making HTTP request
try {
// Construct the client and the HTTP request.
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
// Execute the POST request and store the response locally.
HttpResponse httpResponse = httpClient.execute(httpPost);
// Extract data from the response.
HttpEntity httpEntity = httpResponse.getEntity();
// Open an inputStream with the data content.
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
// Create a BufferedReader to parse through the inputStream.
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
// Declare a string builder to help with the parsing.
StringBuilder sb = new StringBuilder();
// Declare a string to store the JSON object data in string form.
String line = null;
// Build the string until null.
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
// Close the input stream.
is.close();
// Convert the string builder data to an actual string.
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// Try to 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 the JSON Object.
return jObj;
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// 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;
}
And my Main activity code (activity_main) contains only a listview (extends ListActivity).
Do I have to add any layout file, or do I have to change the JSONparse class?
Thanks in advance.

Yes Atif, You have to use custom adapter to show data in ListView. You have to create your own layout for listview & it will inflate in your custom adapter. You can refer below link for this:
Listview Adapter

First of all Add following lines to build.gradle (Module:app)
compile 'com.google.code.gson:gson:2.2.4'
After that create a layout of what u want to show in ListView:I have jsut shown name, phone from your json:
<?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="70dp"
android:orientation="vertical">
<TextView
android:id="#+id/name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp" />
<TextView
android:id="#+id/phone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp" />
</LinearLayout>
Then create an adapter class:
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class ListViewAdapter extends BaseAdapter {
private final JsonResponseDTO data;
private final Context ctx;
private final LayoutInflater inflater;
View v;
public ListViewAdapter(Context ctx, JsonResponseDTO response) {
this.data = response;
this.ctx = ctx;
inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
if (data.posts.size() > 0) {
return data.posts.size();
}
return 0;
}
#Override
public Object getItem(int position) {
return data.posts.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
v = convertView;
UserDetDTO dto = data.posts.get(position);
ViewHolder vh = new ViewHolder();
if (convertView == null) {
v = inflater.inflate(R.layout.row, null);
}
vh.tvName = (TextView) v.findViewById(R.id.name);
vh.tvPhone = (TextView) v.findViewById(R.id.phone);
vh.tvName.setText(dto.name);
vh.tvPhone.setText(dto.phone);
return v;
}
private static class ViewHolder {
public TextView tvName, tvPhone;
}
}
After that call this from Activity class and set adapter in Listview like:
public class ListActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
ListView lv = (ListView) findViewById(R.id.lv);
JSONObject json = /* JSON u recieved from server*/;
JsonResponseDTO jsonRes = new GsonBuilder().create().fromJson(json.toString(), JsonResponseDTO.class);
if (jsonRes != null) {
ListViewAdapter adapter = new ListViewAdapter(ListActivity.this, jsonRes);
lv.setAdapter(adapter);
}
}
}

This may help you:
1) Create a model class with getters and setters for storing the JSON data.
2) Parse JSON and store in an ArrayList<>. // You can use Gson for parsing.
3) Create a layout.xml for displaying list items.
5) Create an adapter class extending BaseAdapter and set the data using layout.xml.
4) Populate data in the list.

Displaying database records in android using JAVA RESTful webservice

I am trying to display database record using java restful web service. I have able to create a login form using it but I cannot display the records on the database. I tried this code but its not working at all. When button is pressed nothing happens. Heres my code.
DriverDetails.java
class Details extends Activity {
TextView name1;
TextView plate1;
Button Btngetdata;
//URL to get JSON Array
private static String url = "http://192.168.254.108:8080/taxisafe/display/taxidetails";
//JSON Node Names
private static final String TAG_USER = "taxi";
private static final String TAG_NAME = "taxi_name";
private static final String TAG_EMAIL = "taxi_plate_no";
JSONArray user = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Btngetdata = (Button)findViewById(R.id.getdata);
Btngetdata.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
new JSONParse().execute();
}
});
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
#Override
protected void onPreExecute() {
super.onPreExecute();
name1 = (TextView)findViewById(R.id.name);
plate1 = (TextView)findViewById(R.id.plate);
}
#Override
protected JSONObject doInBackground(String... args) {
HttpConnection jParser = new HttpConnection();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(url);
return json;
}
#Override
protected void onPostExecute(JSONObject json) {
try {
// Getting JSON Array
user = json.getJSONArray(TAG_USER);
JSONObject c = user.getJSONObject(0);
// Storing JSON item in a Variable
String name = c.getString(TAG_NAME);
String email = c.getString(TAG_EMAIL);
//Set JSON Data in TextView
name1.setText(name);
plate1.setText(email);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
HttpConnection.java
public class HttpConnection {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public HttpConnection() {
}
public JSONObject 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 JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}

I suggest adding Volley to your project
https://developer.android.com/training/volley/index.html
and following the example here https://developer.android.com/training/volley/request.html#request-json
You will not need to create your own HTTP request. Let Volley handle the network request using JSONObjectRequest

How to add a Parsed JSON image from URL to imageView Dynamically?

I have the following code and i like to add my parsed JSON image from URL to my ImageView I don't know how to do it and my code is the following (I get responce and the other data go the desired TextViews):
DisplaySearchResultsActivity.java
package com.cloudlionheart.museumsearchapplication;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class DisplaySearchResultsActivity extends ListActivity
{
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> museumItemsList;
// url to get all products list
private static String url_search_results = "http://10.0.3.2/android_connect/get_all_products.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_MUSEUM_ITEMS = "museumItems";
private static final String TAG_MUSEUM_ITEM_ID = "id";
private static final String TAG_MUSEUM_ITEM_NAME = "itemName";
private static final String TAG_MUSEUM_ITEM_ARTIST = "artistName";
private static final String TAG_MUSEUM_ITEM_LOCATION = "itemLocation";
private static final String TAG_MUSEUM_ITEM_HISTORICAL_PERIOD = "itemHistoricalPeriod";
private static final String TAG_MUSEUM_ITEM_IMAGE = "itemImage";
// products JSONArray
JSONArray museumItems = null;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_search_resaults);
// Hashmap for ListView
museumItemsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute();
// Get listview
ListView lv = getListView();
}
/**
* Background Async Task to Load all product by making HTTP Request
*/
class LoadAllProducts extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
*/
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(DisplaySearchResultsActivity.this);
pDialog.setMessage("Loading Museum Items. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
*/
protected String doInBackground(String... args)
{
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_search_results, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Museum Items: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
museumItems = json.getJSONArray(TAG_MUSEUM_ITEMS);
// looping through All Products
for (int i = 0; i < museumItems.length(); i++)
{
JSONObject c = museumItems.getJSONObject(i);
// Storing each json item in variable
String item_id = c.getString(TAG_MUSEUM_ITEM_ID);
String item_name = c.getString(TAG_MUSEUM_ITEM_NAME);
String item_artist = c.getString(TAG_MUSEUM_ITEM_ARTIST);
String item_historic_period = c.getString(TAG_MUSEUM_ITEM_HISTORICAL_PERIOD);
String item_location = c.getString(TAG_MUSEUM_ITEM_LOCATION);
String list_image = c.getString(TAG_MUSEUM_ITEM_IMAGE);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_MUSEUM_ITEM_ID, item_id);
map.put(TAG_MUSEUM_ITEM_NAME, item_name);
map.put(TAG_MUSEUM_ITEM_ARTIST, item_artist);
map.put(TAG_MUSEUM_ITEM_HISTORICAL_PERIOD, item_historic_period);
map.put(TAG_MUSEUM_ITEM_LOCATION, item_location);
map.put(TAG_MUSEUM_ITEM_IMAGE, list_image);
// adding HashList to ArrayList
museumItemsList.add(map);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* *
*/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
DisplaySearchResultsActivity.this, museumItemsList,
R.layout.list_item, new String[]{TAG_MUSEUM_ITEM_ID,
TAG_MUSEUM_ITEM_NAME, TAG_MUSEUM_ITEM_ARTIST,
TAG_MUSEUM_ITEM_HISTORICAL_PERIOD, TAG_MUSEUM_ITEM_LOCATION,
TAG_MUSEUM_ITEM_IMAGE},
new int[]{R.id.museum_item_id, R.id.museum_item_name,
R.id.museum_item_artist, R.id.museum_item_historic_period,
R.id.museum_item_location, R.id.museum_list_image});
// updating listview
setListAdapter(adapter);
}
});
}
}
}
and my other class
JSONParser.java
package com.cloudlionheart.museumsearchapplication;
/**
* Created by CloudLionHeart on 5/7/2015.
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
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
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// 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;
}
}

Using Picasso:
Picasso.with(context)
.load(imageUrl)
.into(imageView);

You can use image loader library to load image dynamically into imageview.
As it given easy documentation, just follow it. You have to pass url of image.

I Hope it will help you..!
public class LoadImageFromURL extends AsyncTask{
#Override
protected Bitmap doInBackground(String... params) {
try {
URL url = new URL("image-url");
InputStream is = url.openConnection().getInputStream();
Bitmap bitMap = BitmapFactory.decodeStream(is);
return bitMap;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Bitmap result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
yourImageview.setImageBitmap(result);
}
}
<uses-permission android:name="android.permission.INTERNET"/>
add Permission into you manifest.

Retrive data from mysql on my android application

I am try to retrive(read) an array of course form database (mysql) and display it as list of item in my android activity the problem is i have more than one row in my table (course) but it retrive only the first row also if the table (course) have know data insert my application step after the run even that i have case in my code that display toast message that say there is no course
class JSONParser.java
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 method
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// 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;
}
}
class ViewALLCourseStudent.java
package com.ksu.sms;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class ViewALLCourseStudent extends ListActivity {
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser(); //class
ArrayList<HashMap<String, String>> coursesList;
//url to get all products list
private static String url_all_course = "http://10.0.2.2/SmsPhp/view_all_course.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_course = "course";
private static final String TAG_CourseID = "CourseID";
private static final String TAG_Name = "Name";
// course JSONArray
JSONArray courses = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.view_all_course_student);
coursesList = new ArrayList<HashMap<String, String>>();
// Loading courses in Background Thread
new LoadAllCourses().execute();
// Get list view
ListView lv = getListView();
// on seleting single course
// launching Edit course Screen
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) //one of the list
{
// getting values from selected ListItem
String CourseID = ((TextView) view.findViewById(R.id.CourseID)).getText()
.toString();
// Starting new intent
Intent ViewCourseStudent = new Intent(getApplicationContext(),
ViewCourseStudent.class);
// sending Course ID to next activity
ViewCourseStudent.putExtra(TAG_CourseID, CourseID);
// starting new activity and expecting some response back
startActivityForResult(ViewCourseStudent, 100);
}
});
}
// Response from view course Activity
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user view course
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all course by making HTTP Request
* */
class LoadAllCourses extends AsyncTask<String, String, String>
{
/**
* Before starting background thread Show Progress Dialog
* */
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(ViewALLCourseStudent.this);
pDialog.setMessage("Loading Courses. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from u r l
* */
#Override
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_course, "GET", params);
// Check your log cat for JSON response
Log.d("All courses: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// course found
// Getting Array of course
courses = json.getJSONArray(TAG_course);
// looping through All courses
for (int i = 0; i < courses.length(); i++)//course JSONArray
{
JSONObject c = courses.getJSONObject(i); // read first
// Storing each json item in variable
String CourseID = c.getString(TAG_CourseID);
String Name = c.getString(TAG_Name);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_CourseID, CourseID);
map.put(TAG_Name, Name);
// adding HashList to ArrayList
coursesList.add(map);
}
} else {
Toast.makeText(getBaseContext(),"there is no course" ,Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
ViewALLCourseStudent.this, coursesList,
R.layout.list_item, new String[] { TAG_CourseID,
TAG_Name},
new int[] { R.id.CourseID, R.id.Name });
// updating listview
setListAdapter(adapter);
}
});
}
}
}
and php for view all course
<?php
/*
* Following code will list all the course
*/
// array for JSON response
$response = array();
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// get all courses from course table
$result = mysql_query("SELECT *FROM course") or die(mysql_error());
// check for empty result
if (mysql_num_rows($result) > 0)
{
// looping through all results
// products node
$response["course"] = array();
while ($row = mysql_fetch_array($result))
{
// temp user array
$course = array();
$course["CourseID"] = $row["CourseID"];
$course["Code"] = $row["Code"];
$course["Name"] = $row["Name"];
$course["OfficeHours"] = $row["OfficeHours"];
$course["CreditHours"] = $row["CreditHours"];
$course["Description"] =$row["Description"];
$course["MaxAbsenceDays"]= $row["MaxAbsenceDays"];
$course["ExamsDates"] = $row["ExamsDates"];
// push single product into final response array
array_push($response["course"], $course);
// success
$response["success"] = 1;
// echoing JSON response
echo json_encode($response);
}
}
else {
// no products found
$response["success"] = 0;
$response["message"] = "No products found";
// echo no users JSON
echo json_encode($response);
}
?>
Any thing you want i can explain.

Look at the example given in halloandrdoid or SPTechnolab blog
There is a good example for connecting MySql using PHP and it worked for me.