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reading JSON data from php file in android application

i am just a beginner in developing android applications, i wanted to connect my application to a server so i could get data from MySQL. so i tried to make login part first but i have some problems. my code doesn't work for reading JSON.
my codes are as below:
LoginActivity(MainActivity) :
package ir.naserpour.sportclub;
import android.content.Context;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.UnsupportedEncodingException;
import uk.co.chrisjenx.calligraphy.CalligraphyContextWrapper;
public class LoginActivity extends AppCompatActivity {
String link;
String response;
//get values
String username,password;
#Override
protected void attachBaseContext (Context newBase){
super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
}
#Override
protected void onCreate (Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
//define things
TextView menu = (TextView) findViewById(R.id.menu);
final EditText login_username = (EditText) findViewById(R.id.login_username);
final EditText login_password = (EditText) findViewById(R.id.login_password);
Button login_login = (Button) findViewById(R.id.login_login);
Button login_register = (Button)findViewById(R.id.login_register);
CheckBox rememberme = (CheckBox)findViewById(R.id.login_remeberme);
//set icon type face
Typeface fonticon = Typeface.createFromAsset(getAssets(), "fonts/icon.ttf");
menu.setTypeface(fonticon);
login_login.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
username = login_username.getText().toString();
password = login_password.getText().toString();
//check values
if (username.length() <1 || password.length() < 1) {
Toast.makeText(getApplicationContext(), "fields cannot be empty", Toast.LENGTH_SHORT).show();
} else {
//generate link
link = "http://localhost:8080/login.php?username="+username+"&password="+password;
login();
if(response=="true"){
Toast.makeText(getApplicationContext(), "true", Toast.LENGTH_SHORT).show();
}else if(response=="false"){
Toast.makeText(getApplicationContext(), "false", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(getApplicationContext(), "response", Toast.LENGTH_SHORT).show();
}
}
}
});
}
#Override
protected void onPause () {
super.onPause();
finish();
}
public String login() {
new JSONParse().execute();
return response;
}
public class JSONParse extends AsyncTask<String, String, JSONObject> {
#Override
public void onPreExecute() {
super.onPreExecute();
Toast.makeText(getApplicationContext(),"getting data ...",Toast.LENGTH_SHORT).show();
}
#Override
public JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(link);
return json;
}
#Override
public void onPostExecute(JSONObject json) {
try {
JSONArray result = json.getJSONArray("result");
JSONObject c = result.getJSONObject(0);
try {
String res = new String(c.getString("response").getBytes("ISO-8859-1"), "UTF-8");
response = res;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
JSONParser.java:
package ir.naserpour.sportclub;
import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
/**
* Created by Mohammad Naserpour on 9/22/2016.
*/
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
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;
}
}
and also my login.php script:
<?php
define("HOST","localhost");
define("USERNAME","root");
define("PASSWORD","");
define("NAME","users");
$con = mysqli_connect(HOST,USERNAME,PASSWORD,NAME);
$username = $_GET["username"];
$password = $_GET["password"];
$sql = "SELECT * FROM userinfo WHERE username ='$username' AND password='$password'";
$check = mysqli_fetch_array(mysqli_query($con,$sql));
if(isset($check)){
echo '{"result":[{"response":"true"}]}';
}else{
echo '{"result":[{"response":"false"}]}';
}
mysqli_close($con);
?>
i would be so happy if i find out the problem. thank you.

see this tutorial :
its a full tutorial about login process using google volley

First : On device side, Use volley, its simple and easy to use
Second : On server, what is {"result":[{"response":"true"}]}
any problem with {"result":true} ??
Last but not the least : Did you use JSON before or this code is trial and error copy paste from some tutorials?

HTTP post request returns HTML code instead of JSON data

I am trying to develop a simple client-server application in Android. I have a problem while fetching a response from PHP code. It returns an HTML code instead of JSON. Is it a problem with the WAMP server I have used?
Here is the PHP code:
<?php
include_once './connect_db.php';
$db = new DBConnect();
$response = array();
$username = $_POST["username"];
$password = $_POST["password"];
if (empty($_POST['username']) || empty($_POST['password']))
{
$response["success"] = 0;
$response["message"] = "One or both of the fields are empty.";
die(json_encode($response));
}
$query = " SELECT * FROM account WHERE username = '$username'and password='$password'";
$sql1 = mysql_query($query);
$row = mysql_fetch_array($sql1);
if (!empty($row))
{
$response["success"] = 1;
$response["message"] = "You have been sucessfully login";
die(json_encode($response));
}
else
{
$response["success"] = 0;
$response["message"] = "invalid username or password ";
die(json_encode($response));
}
mysql_close();
?>
login.java:
package com.example.rossh.register;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class login extends AppCompatActivity implements OnClickListener {
private EditText user, pass;
private Button login;
JSONObject jsonObject;
String response;
// Progress Dialog
private ProgressDialog pDialog;
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
//setup input fields
user = (EditText) findViewById(R.id.username);
pass = (EditText) findViewById(R.id.password);
//setup buttons
login = (Button) findViewById(R.id.btnlogin);
//register listeners
login.setOnClickListener(this);
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btnlogin:
String username = user.getText().toString();
String password = pass.getText().toString();
boolean cancel =false;
View focusView = null;
if(TextUtils.isEmpty(username))
{
user.setError("This field is required!!");
cancel=true;
focusView=user;
}
if(TextUtils.isEmpty(password))
{
pass.setError("This field is requird!!!");
cancel=true;
focusView=pass;
}
if(cancel)
{
focusView.requestFocus();
} else {
new AttemptLogin().execute(username, password);
}
break;
default:
break;
}
}
class AttemptLogin extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
*/
boolean failure = false;
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(login.this);
pDialog.setMessage("Attempting login...");
pDialog.show();
}
#Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Check for success tag
String username = args[0];
String password = args[1];
// Building Parameters
final int success;
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", username));
params.add(new BasicNameValuePair("password", password));
Log.d("request!", "starting");
// getting product details by making HTTP request
JsonParser jsonParser = new JsonParser();
jsonObject = jsonParser.makeHttpRequest(AppConfig.LOGIN_URL, "POST", params);
if (jsonObject != null) {
try{
Log.d("Json data",">"+jsonObject);
success = jsonObject.getInt(TAG_SUCCESS);
if (success == 1) {
response = jsonObject.getString(TAG_MESSAGE);
} else {
Log.d("Login Failure!", jsonObject.getString(TAG_MESSAGE));
response = jsonObject.getString(TAG_MESSAGE);
}
} catch(JSONException e) {
e.printStackTrace();
}
}
return response;
}
/**
* After completing background task Dismiss the progress dialog
**/
protected void onPostExecute(String file_url) {
// dismiss the dialog once product deleted
pDialog.dismiss();
if (file_url != null) {
Toast.makeText(login.this, "ok", Toast.LENGTH_LONG).show();
}
}
}
}
}
jsonParser.java:
package com.example.rossh.register;
import android.util.Log;
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.apache.http.protocol.HTTP;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
import android.widget.Toast;
public class JsonParser {
InputStream is = null;
static String json = "";
static JSONObject jObj = null;
// 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));
httpPost.setHeader("Content-Type","application/json");
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, HTTP.UTF_8), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
Log.d("String",">"+json);
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
JSONArray jsonarray = new JSONArray(json);
jObj = jsonarray.getJSONObject(0);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing " + e.toString());
}
// return JSON String
return jObj;
}
}

It may be due to one or more errors in your HTML, or if your page returns non-text objects. Make sure your HTML webpage does not throw an error while running from browser.

For one thing I would suggest that your PHP script sets proper content type when returning json, see Returning JSON from a PHP Script. Also see Java HttpRequest JSON & Response Handling for how to do JSON requests in java.

Try changing die(json_encode($response)) to echo json_encode($response)

How to pass value from my android java class to php using JSON?

i need help.
just want to know how to pass value to my php using JSON?
in my CategoryFragment code i set value to my cid
cid = catid;
now i want to pass this value to my php using JSON in this code
DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
HttpPost httppost = new HttpPost("http://joehamirbalabadan.com/android/android/products.php");
this is my CategoryFragment.java
package com.example.administrator.mosbeau;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.GridView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
/**
* Created by Administrator on 9/18/2015.
*/
public class CategoryFragment extends Fragment {
public static CategoryFragment newInstance(String id,String name) {
CategoryFragment fragment = new CategoryFragment();
Bundle bundle = new Bundle();
bundle.putString("id", id);
bundle.putString("name", name);
fragment.setArguments(bundle);
return fragment;
}
public CategoryFragment () {
}
EditText tpid, tpname;
String cid;
String cname;
String myJSON;
JSONArray jsonarray;
GridView productgridview;
GridViewAdapter adapter;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist;
public static String products_id = "products_id";
public static String products_name = "products_name";
public static String products_price = "products_price";
public static String products_image = "products_image";
Boolean InternetAvailable = false;
Seocnd detectconnection;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.categorylayout, container, false);
getActivity().invalidateOptionsMenu();
tpid = (EditText) rootView.findViewById(R.id.tpid);
tpname = (EditText) rootView.findViewById(R.id.tpname);
if(getArguments() != null) {
String catid = getArguments().getString("id");
String catname = getArguments().getString("name");
tpid.setText(catid);
tpname.setText(catname);
cid = catid;
cname = catname;
}
productgridview = (GridView) rootView.findViewById(R.id.productgridview);
//new DownloadJSON().execute();
detectconnection = new Seocnd(getActivity());
InternetAvailable = detectconnection.InternetConnecting();
if (InternetAvailable) {
getProduct();
} else {
NointernetFragment fragment = new NointernetFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, fragment)
.commit();
}
return rootView;
}
public void getProduct(){
class DownloadJSON extends AsyncTask<String, Void, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(getActivity());
// Set progressdialog title
mProgressDialog.setTitle(cname);
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
#Override
protected String doInBackground(String... params) {
DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
HttpPost httppost = new HttpPost("http://joehamirbalabadan.com/android/android/products.php");
// Depends on your web service
httppost.setHeader("Content-type", "application/json");
InputStream inputStream = null;
String result = null;
try {
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
inputStream = entity.getContent();
// json is UTF-8 by default
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
result = sb.toString();
} catch (Exception e) {
// Oops
}
finally {
try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
}
return result;
}
#Override
protected void onPostExecute(String result){
myJSON=result;
try {
// Locate the array name in JSON
JSONObject jsonObj = new JSONObject(myJSON);
jsonarray = jsonObj.getJSONArray("products");
arraylist = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject p = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("products_id", p.getString("products_id"));
map.put("products_name", p.getString("products_name"));
map.put("products_price", p.getString("products_price"));
map.put("products_image", p.getString("products_image"));
// Set the JSON Objects into the array
arraylist.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
adapter = new GridViewAdapter(getActivity(), arraylist);
// Set the adapter to the GridView
productgridview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}
DownloadJSON g = new DownloadJSON();
g.execute();
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(2);
}
}
after i pass the value i want to use it in this part of my php code
$cid = "CID value here from java";
here is the complete php code..
products.php
<?php
include('dbconnection.php');
$cid = "CID value here from java";
$statement = mysqli_query($con, "SELECT p.products_id, pd.products_name, p.products_price, p.products_image FROM products p INNER JOIN products_description pd ON p.products_id=pd.products_id WHERE p.products_status='1' ORDER BY p.products_sort_order ASC");
$products = array();
while($row = mysqli_fetch_array($statement)){
array_push($products,
array(
'products_id'=>$row[0],
'products_name'=>$row[1],
'products_price'=>$row[2],
'products_image'=>"http://joehamirbalabadan.com/android/images/".$row[3]
));
}
echo json_encode(array("products"=>$products));
mysqli_close($con);
?>
help me to construct my code.. thanks..

use following code for add parameters into http post request.I hope it will help you..!
//Post Data
List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(2);
nameValuePair.add(new BasicNameValuePair("cid", "testid"));
nameValuePair.add(new BasicNameValuePair("test", "testvalue"));
//Encoding POST data
try {
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
} catch (UnsupportedEncodingException e) {
// log exception
e.printStackTrace();
}
// finally make POST request.

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.

get list view with specific records from server based on email address sent from android

I have a table in the server and I want to retrieve specific records based on email address sent from android java code.
The email address is stored in global variable and I can get its value but I don't know how to send its value to the server and get the records.
my code retrieves all the records from the table
Please Help me to do it, I tried to do it for 3 days but with no solution
this is my PHP code :
<?php
$objConnect = mysql_connect("****","******","******");
$objDB = mysql_select_db("******");
$strSQL = "SELECT * FROM Appointment ";
$objQuery = mysql_query($strSQL);
$intNumField = mysql_num_fields($objQuery);
$resultArray = array();
while($obResult = mysql_fetch_array($objQuery))
{
$arrCol = array();
for($i=0;$i<$intNumField;$i++)
{
$arrCol[mysql_field_name($objQuery,$i)] = $obResult[$i];
}
array_push($resultArray,$arrCol);
}
mysql_close($objConnect);
echo json_encode($resultArray);
?>
this is my java code :
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.Bundle;
import android.os.StrictMode;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.DialogInterface;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class ServicesBMWGarageActivity extends Activity {
private ClipData myClip;
private ClipboardManager myClipboard;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.services_bmw_garage);
GlobalClass globalVariable = (GlobalClass) getApplicationContext();
// Get email from global/application context
final String Email = globalVariable.getEmail();
myClipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
// Permission StrictMode
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
// listView1
final ListView lisView1 = (ListView)findViewById(R.id.listView1);
String url = "http://ec2-54-148-64-28.us-west-2.compute.amazonaws.com/Codiad/workspace/BMWdatabase/MyAppointments.php";
try {
JSONArray data = new JSONArray(getJSONUrl(url));
final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map;
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
map = new HashMap<String, String>();
map.put("A_ID", c.getString("A_ID"));
map.put("A_Model", c.getString("A_Model"));
map.put("A_Services", c.getString("A_Services"));
map.put("A_DATE", c.getString("A_DATE"));
MyArrList.add(map);
}
SimpleAdapter sAdap;
sAdap = new SimpleAdapter(ServicesBMWGarageActivity.this, MyArrList, R.layout.activity_column,
new String[] {"A_ID", "A_Model", "A_Services", "A_DATE"}, new int[] {R.id.ColMemberID, R.id.ColName, R.id.ColTel,R.id.Coldate });
lisView1.setAdapter(sAdap);
final AlertDialog.Builder viewDetail = new AlertDialog.Builder(this);
// OnClick Item
lisView1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> myAdapter, View myView,
int position, long mylng) {
String A_ID1 = MyArrList.get(position).get("A_ID")
.toString();
String Type1 = MyArrList.get(position).get("A_Model")
.toString();
String Model1 = MyArrList.get(position).get("A_Services")
.toString();
String Model2 = MyArrList.get(position).get("A_DATE")
.toString();
final String phoneNumber = MyArrList.get(position).get("A_ID")
.toString();
//String sMemberID = ((TextView) myView.findViewById(R.id.ColMemberID)).getText().toString();
// String sName = ((TextView) myView.findViewById(R.id.ColName)).getText().toString();
// String sTel = ((TextView) myView.findViewById(R.id.ColTel)).getText().toString();
viewDetail.setIcon(android.R.drawable.btn_star_big_on);
viewDetail.setTitle("Appointment Detail");
viewDetail.setMessage("ID : " + A_ID1 + "\n"
+ "Vehicle Model : " + Type1 + "\n" + "Service Type : " + Model1
+ "\n" + "Date : " + Model2);
viewDetail.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
String text = phoneNumber;
myClip = ClipData.newPlainText("text", text);
myClipboard.setPrimaryClip(myClip);
Toast.makeText(getApplicationContext(), "Appointment ID Copied",
Toast.LENGTH_SHORT).show();
dialog.dismiss();
}
});
viewDetail.show();
}
});
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getJSONUrl(String url) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
try {
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Download OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download results..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_activity_home_page, menu);
return true;
}
}

I found the answer and the problem is solved
It was an easy solution
I just put my condition in the java code with no changes in the PHP code
the changes are :
try {
JSONArray data = new JSONArray(getJSONUrl(url));
final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map;
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
map = new HashMap<String, String>();
map.put("V_ID", c.getString("V_ID"));
map.put("V_Type", c.getString("V_Type"));
map.put("V_Model", c.getString("V_Model"));
map.put("V_Year", c.getString("V_Year"));
map.put("V_Plate", c.getString("V_Plate"));
map.put("ImagePath", c.getString("ImagePath"));
map.put("Email", c.getString("Email"));
String email = c.getString("Email");
GlobalClass globalVariable = (GlobalClass) getApplicationContext();
// Get name and email from global/application context
final String Email = globalVariable.getEmail();
if(email.equals(Email))
MyArrList.add(map);
}