Develop Reference

How to parse this Json Array in android

I have a jsonArray which I want to parse in my android app.
The array:-
[
{
"id": 96905,
"category": "topup",
"detail": "Full talktime of Rs.55 + 1 local airtel SMS free for 1 day",
"price": 55,
"keywords": "topup",
"updated": "2016-01-07 00:16:23.0",
"validity": "7 days",
"service": "Airtel",
"sourceUri": "https://pay.airtel.com/online-payments/recharge.jsp",
"circle": "Assam",
"talktime": 55
},
{
"id": 90397,
"category": "topup",
"price": 510,
"keywords": "topup",
"updated": "2016-01-07 00:16:23.0",
"service": "Airtel",
"sourceUri": "https://pay.airtel.com/online-payments/recharge.jsp",
"circle": "Assam",
"talktime": 520
},
{
"id": 90399,
"category": "topup",
"price": 1000,
"keywords": "topup",
"updated": "2016-01-07 00:16:23.0",
"service": "Airtel",
"sourceUri": "https://pay.airtel.com/online-payments/recharge.jsp",
"circle": "Assam",
"talktime": 1020
}]
My android Code:-
Asynctask:-
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = new ProgressDialog(MainActivity.this);
mProgressDialog.setTitle("Android JSON Parse Tutorial");
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// Create an array
arraylist = new ArrayList<HashMap<String, String>>();
try {
JSONObject jo;
JSONArray ja2 = JSONfunctions.getJSONfromURL("http://app.ireff.in:9090/IreffWeb/android?service=airtel&circle=assam");
for (int i = 0; i < ja2.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jo = ja2.getJSONObject(i);
map.put("rank", jo.getString("price"));
map.put("country", jo.getString("validity"));
map.put("population", jo.getString("talktime"));
arraylist.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void args) {
listview = (ListView) findViewById(R.id.listview);
adapter = new ListViewAdapter(MainActivity.this, arraylist);
listview.setAdapter(adapter);
mProgressDialog.dismiss();
}
}
JsonFunctions.java
public class JSONfunctions {
public static JSONArray getJSONfromURL(String url) {
InputStream is = null;
String result = "";
JSONArray jArray = null;
// Download JSON data from URL
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
// Convert response to string
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();
result = sb.toString();
} catch (Exception e) {
Log.e("log_tag", "Error converting result " + e.toString());
}
try {
jArray = new JSONArray(result);
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}
}
The error I get:-
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int org.json.JSONArray.length()' on a null object reference
at com.androidbegin.jsonparsetutorial.MainActivity$DownloadJSON.doInBackground(MainActivity.java:67)
at com.androidbegin.jsonparsetutorial.MainActivity$DownloadJSON.doInBackground(MainActivity.java:39)
at android.os.AsyncTask$2.call(AsyncTask.java:292)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
The json is hosted here
I was following this tutorial for learning json parsing, but this tutorial uses jsonObject and I am not able to parse the json array.
Not a duplicate to this :-Sending and Parsing JSON Objects or this How to parse this JSON Array in android?

Let me offer an alternate solution (of sorts). A much simpler version of your existing code would be:
Updated code:
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist = new ArrayList<>();
#Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = new ProgressDialog(TestListActivity.this);
mProgressDialog.setTitle("Android JSON Parse Tutorial");
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
String url = "http://app.ireff.in:9090/IreffWeb/android?service=airtel&circle=assam";
OkHttpClient okHttpClient = new OkHttpClient();
okHttpClient.setConnectTimeout(30, TimeUnit.SECONDS);
okHttpClient.setReadTimeout(30, TimeUnit.SECONDS);
okHttpClient.setRetryOnConnectionFailure(true);
Request request = new Request.Builder()
.url(url)
.build();
Call call = okHttpClient.newCall(request);
try {
Response response = call.execute();
String strResult = response.body().string();
JSONArray JARoot = new JSONArray(strResult);
for (int i = 0; i < JARoot.length(); i++) {
JSONObject JORoot = JARoot.getJSONObject(i);
HashMap<String, String> map = new HashMap<>();
if (JORoot.has("category") && JORoot.getString("category").equals("topup")) {
if (JORoot.has("id")) {
map.put("id", JORoot.getString("id"));
}
if (JORoot.has("category")) {
map.put("category", JORoot.getString("category"));
}
if (JORoot.has("detail")) {
map.put("detail", JORoot.getString("detail"));
} else {
map.put("detail", null);
}
if (JORoot.has("price")) {
map.put("price", JORoot.getString("price"));
}
/** ADD THE COLLECTED DATA TO THE ARRAY LIST **/
arraylist.add(map); /* THE DATA WILL ONLY BE ADDED IF THE CATEGORY = "topup" */
}
}
} catch (IOException | JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
ListView testList = (ListView) findViewById(R.id.testList);
TestListAdapter adapter = new TestListAdapter(TestListActivity.this, arraylist);
testList.setAdapter(adapter);
mProgressDialog.dismiss();
}
}
private class TestListAdapter extends BaseAdapter {
Activity activity;
// LAYOUTINFLATER TO USE A CUSTOM LAYOUT
LayoutInflater inflater = null;
// ARRAYLIST TO GET DATA FROM THE ACTIVITY
ArrayList<HashMap<String, String>> arrItem;
public TestListAdapter(Activity activity, ArrayList<HashMap<String, String>> arrItem) {
this.activity = activity;
// CAST THE CONTENTS OF THE ARRAYLIST IN THE METHOD TO THE LOCAL INSTANCE
this.arrItem = arrItem;
// INSTANTIATE THE LAYOUTINFLATER
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
#Override
public int getCount() {
return arrItem.size();
}
#Override
public Object getItem(int position) {
return arrItem.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// A VIEWHOLDER INSTANCE
ViewHolder holder;
// CAST THE CONVERTVIEW IN A VIEW INSTANCE
View vi = convertView;
// CHECK CONVERTVIEW STATUS
if (convertView == null) {
// CAST THE CONVERTVIEW INTO THE VIEW INSTANCE vi
vi = inflater.inflate(R.layout.test_item, null);
// INSTANTIATE THE VIEWHOLDER INSTANCE
holder = new ViewHolder();
/***** CAST THE LAYOUT ELEMENTS *****/
/* TOP (PRIMARY) ELEMENTS */
holder.txtPrice = (TextView) vi.findViewById(R.id.txtPrice);
holder.txtDetail = (TextView) vi.findViewById(R.id.txtDetail);
// SET THE TAG TO "vi"
vi.setTag(holder);
} else {
// CAST THE VIEWHOLDER INSTANCE
holder = (ViewHolder) vi.getTag();
}
if (arrItem.get(position).get("price") != null) {
String strPrice = arrItem.get(position).get("price");
holder.txtPrice.setText("PRICE: " + strPrice);
}
if (arrItem.get(position).get("detail") != null) {
String strDetail = arrItem.get(position).get("detail");
holder.txtDetail.setText("DETAIL: " + strDetail);
} else {
holder.txtDetail.setText("DETAIL: NA");
}
return vi;
}
private class ViewHolder {
/* TOP (PRIMARY) ELEMENTS */
TextView txtPrice;
TextView txtDetail;
}
}
For the sake of completeness, I am also including the code for the adapter. It is a simple implementation. Do clean it up / optimize it / customize as per your requirement.
This piece of code has been tested prior to being posted (see screenshot of Logs at the bottom)
This uses the OkHttp library. Add this compile statement to the dependencies section of the module's gradle file: compile 'com.squareup.okhttp:okhttp:2.5.0'. Check the link for an updated version.
The example code uses if statements considering that not every record has the same set of nodes.

You BufferReader is not working as expected in your class JSONfunctions , do some changes in your class and it should looks like
JSONfunctions.java
public class JSONfunctions {
public static JSONArray getJSONfromURL(String url) {
InputStream is = null;
String result = "";
JSONArray jArray = null;
// Download JSON data from URL
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
StringBuffer sb = new StringBuffer("");
try {
URL urls = new URL(url);
URLConnection urlConnection;
urlConnection = urls.openConnection();
InputStream in = urlConnection.getInputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(in));
String line = "";
while ((line = br.readLine()) != null) {
sb.append(line);
}
System.out.println(sb);
result=sb.toString();
} catch (IOException e) {}
catch (Exception e) {}
try {
jArray = new JSONArray(result);
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}
}
and to avoid Exception check if JSONArray is not null then only it goes to run for loop like this :
JSONArray ja2 = JSONfunctions.getJSONfromURL("http://app.ireff.in:9090/IreffWeb/android? service=airtel&circle=assam");
if(ja2!=null)
for (int i = 0; i < ja2.length(); i++) {}

jsonResponse="";
for(int i = 0; i<response.length(); i++) {
JSONObject person = (JSONObject) response.get(i);
String id = person.getString("id");
String category = person.getString("category");
}

Error parsing data .Value String cannot be converted to JSONArray [duplicate]

This question already has answers here:
Error parsing data org.json.JSONException: Value String cannot be converted to JSONArray
(2 answers)
Closed 8 years ago.
Here is list activity
ListActivity:
public class ListDataActivity extends ListActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_listview);
url = "http://xxx.xx.x.xxx/index.php";
Bundle c = getIntent().getExtras();
blo = c.getString("blood");
new ProgressTask(ListDataActivity.this).execute();
}
#Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
}
class ProgressTask extends AsyncTask<String, Void, Boolean> {
ArrayList<HashMap<String, String>> jsonlist = new ArrayList<HashMap<String, String>>();
ConnectivityManager conMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
{
if (conMgr.getActiveNetworkInfo() != null
&& conMgr.getActiveNetworkInfo().isAvailable()
&& conMgr.getActiveNetworkInfo().isConnected()) {
} else {
Toast.makeText(getApplicationContext(),
"INTERNET CONNECTION NOT PRESENT", Toast.LENGTH_SHORT)
.show();
startActivity(new Intent(ListDataActivity.this,
MainActivity.class));
}
}
public ProgressTask(ListActivity activity) {
context = activity;
}
private Context context;
protected void onPreExecute() {}
#Override
protected void onPostExecute(final Boolean success) {
ListAdapter adapter = new SimpleAdapter(context, jsonlist,
R.layout.row_listitem, new String[] { name, Category },
new int[] { R.id.vehicleType, R.id.vehicleColor }) {
#Override
public View getView(int position, View convertView,
ViewGroup parent) {
if (convertView == null) {
// This a new view we inflate the new layout
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_listitem,
null);
}
// TODO Auto-generated method stub
if (position % 2 == 1)
convertView.setBackgroundColor(Color.rgb(120, 151, 66));
else
convertView.setBackgroundColor(Color.rgb(86, 107, 129));
return super.getView(position, convertView, parent);
}
};
setListAdapter(adapter);
lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
}
});
}
protected Boolean doInBackground(final String... args) {
url = url + "?blo_name=" + blo;
Log.d("", url);
baseAdapter jParser = new baseAdapter();
JSONArray json = jParser.getJSONFromUrl(url);
if (json != null) {
for (int i = 0; i < json.length(); i++) {
try {
JSONObject c = json.getJSONObject(i);
String vtype = c.getString(name);
String vfuel = c.getString(Category);
HashMap<String, String> map = new HashMap<String, String>();
// Add child node to HashMap key & value
map.put(name, vtype);
map.put(Category, vfuel);
jsonlist.add(map);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
return null;
}
Base Adapter class:
public class baseAdapter {
static InputStream iStream = null;
static JSONArray jarray = null;
static String json = "";
public baseAdapter() {}
public JSONArray getJSONFromUrl(String url) {
StringBuilder builder = 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) {
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 ");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// 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;
}
PHP:
if (isset($_POST['blo_name'])) {
$str = $_POST['blo_name'];
$sql = "SELECT * FROM blood_group where Category IN ($str)";
$result = mysql_query($sql);
while ($row=mysql_fetch_array($result))
$output[]=$row;
print(json_encode($output));
mysql_close();
}
I am trying to parse bol string, it have value like bol="'B-','O-'"; while I parse this type of value it didn't show results and gives the logcat
logcat:
Error parsing data org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONArray
I need to get result against query SELECT * FROM blood_group where Category IN ($str) but I cannot get. When I give hard core value in php like $str = "'A+','B+'"; it give me result while parsing from android it does not give result while in logcat I can see value http://xxx.xx.x.xxx/heart.php?blo_name='A','B' but error as well.

Error parsing data org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONArray
Notice <br - the web service is returning HTML and not a plain JSON string. Basically you need to fix your PHP response so it doesn't return HTML.

Populating listview from database (localhost phpmyadmin)

I tried searching for similar questions but I cant find anything that fits in to what I am doing.. I'm trying to populate a listview from a database and whenever I run it, it doesn't display anything in the listview..
here is the logcat..
JSONException: Value {"message":"Patient Available","success":1,"post":[{"lname":"miradora doringo","address":"navotas, pilipinas","email":"tam.muqu23","age":"20","gender":"babae","remarks":"mabuting estudyante","patient_id":"6","contact":"361008762","fname":"jenelien"},{"lname":"andres","address":"manila","email":"julieannandres#gmail.com","age":"20","gender":"female","remarks":"trial","patient_id":"7","contact":"926644895","fname":"julie"}]} of type org.json.JSONObject cannot be converted to JSONArray
this is my Viewpatient.java:
public class Viewpatient extends ListActivity {
private Button create;
private ProgressDialog pDialog;
private static final String READ_PATIENT_URL = "http://192.168.43.15:8080/DoctorScheduler/activities/viewpatient.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private static final String TAG_POST = "post";
private static final String TAG_PATIENT = "patient_id";
private static final String TAG_FNAME = "fname";
private static final String TAG_LNAME = "lname";
private static final String TAG_AGE = "age";
private static final String TAG_GENDER = "gender";
private static final String TAG_CONTACT = "contact";
private static final String TAG_EMAIL = "email";
private static final String TAG_ADDRESS = "address";
private static final String TAG_REMARKS = "remarks";
JSONParser jsonParser = new JSONParser();
//array of all patient information by patient
JSONArray Apatient = null;
//manages all patient in a list
ArrayList<HashMap<String, String>> ApatientList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_viewpatient);
ApatientList = new ArrayList<HashMap<String, String>>();
new LoadInformation().execute();
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
// INSERT ALL PREVIOUS CONSULTATIONS OF THE PATIENT HERE
}
});
create = (Button) findViewById(R.id.BtnAdd);
create.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent createInfo = new Intent(Viewpatient.this, Viewupdate.class);
startActivity(createInfo);
}
});
};
public class LoadInformation extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pDialog = new ProgressDialog(Viewpatient.this);
pDialog.setMessage("Loading all patient information....");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
}
#Override
protected Void doInBackground(Void... args) {
// TODO Auto-generated method stub
List<NameValuePair> params = new ArrayList<NameValuePair>();
// Making a request to url and getting response
String json = jsonParser.getJSONFromURL(READ_PATIENT_URL, "POST", params);
Log.d("Response: ", "> " + json);
try {
Apatient = new JSONArray(json);
if (Apatient != null) {
// looping
for (int i = 0; i < Apatient.length(); i++) {
JSONObject c = Apatient.getJSONObject(i);
String patient_id = c.getString(TAG_PATIENT);
String fname = c.getString(TAG_FNAME);
String lname = c.getString(TAG_LNAME);
String age = c.getString(TAG_AGE);
String gender = c.getString(TAG_GENDER);
String contact = c.getString(TAG_CONTACT);
String email = c.getString(TAG_EMAIL);
String address = c.getString(TAG_ADDRESS);
String remarks = c.getString(TAG_REMARKS);
// tmp hashmap for single contact
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PATIENT, patient_id);
map.put(TAG_FNAME, fname);
map.put(TAG_LNAME, lname);
map.put(TAG_AGE, age);
map.put(TAG_GENDER, gender);
map.put(TAG_CONTACT, contact);
map.put(TAG_EMAIL, email);
map.put(TAG_ADDRESS, address);
map.put(TAG_REMARKS, remarks);
// adding contact to contact list
ApatientList.add(map);
}
} else {
Log.e("Error", "Couldn't get any data from the url");
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
//super.onPostExecute(result);
pDialog.dismiss();
runOnUiThread(new Runnable(){
public void run(){
ListAdapter adapter = new SimpleAdapter(
Viewpatient.this, ApatientList, R.layout.main,
new String[] { TAG_PATIENT, TAG_FNAME, TAG_LNAME, TAG_AGE,
TAG_GENDER, TAG_CONTACT, TAG_EMAIL, TAG_ADDRESS, TAG_REMARKS },
new int[] { R.id.txtID, R.id.txtFName, R.id.txtLName, R.id.txtAge, R.id.txtGender,
R.id.txtContact, R.id.txtEmail, R.id.txtAddress, R.id.txtRemarks});
setListAdapter(adapter);
}
});
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.viewpatient, menu);
return true;
}
}
this my JSONParser.java:
public class JSONParser {
//new
static String response = null;
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
//constructor
public JSONParser(){
}
public String getJSONFromURL(String url, String method,
List<NameValuePair> params){
try {
// http client
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpEntity httpEntity = null;
HttpResponse httpResponse = null;
// Checking http request method type
if (method == "POST") {
HttpPost httpPost = new HttpPost(url);
// adding post params
if (params != null) {
httpPost.setEntity(new UrlEncodedFormEntity(params));
}
httpResponse = httpClient.execute(httpPost);
} else if (method == "GET") {
// appending params to url
if (params != null) {
String paramString = URLEncodedUtils
.format(params, "utf-8");
url += "?" + paramString;
}
HttpGet httpGet = new HttpGet(url);
httpResponse = httpClient.execute(httpGet);
}
httpEntity = httpResponse.getEntity();
response = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return response;
}
}
and this is my viewpatient.php:
<?php
require ("../config.inc.php");
$query = "Select * From patientinfo";
try{
$stmt = $dbname->prepare($query);
$result = $stmt->execute();
}catch(PDOException $ex){
$response["success"] = 0;
$response["message"] = "Database Error!";
die(json_encode($response));
}
//retrieve all the rows
$rows = $stmt->fetchAll();
if($rows){
$response["success"] = 1;
$response["message"] = "Patient Available";
$response["post"] = array();
foreach($rows as $row){
$post = array();
$post["patient_id"] = $row["patient_id"];
$post["fname"] = $row["fname"];
$post["lname"] = $row["lname"];
$post["age"] = $row["age"];
$post["gender"] = $row["gender"];
$post["contact"] = $row["contact"];
$post["email"] = $row["email"];
$post["address"] = $row["address"];
$post["remarks"] = $row["remarks"];
//update json response
array_push($response["post"], $post);
}
echo json_encode($response);
}
else{
$response["success"] = 0;
$response["message"] = "No available patient information";
die(json_encode($response));
}
?>

You should change this part Apatient = new JSONArray(json);
Create a JSONObject JSONObject ApatientObject = new JSONObject(json);
Then get your JSONArray from there like this :
Apatient = new JSONArray(ApatientObject.getJSONArray("post"))
The problem is that the response you receive from the server is a JSONObject, not a JSONArray. The JSONObject contains 2 Strings, "message" and "success", and also contains a JSONArray "post" which holds the data you are looking for.
EDIT:
If you're only retreiving data from the server then it can be useful to think in terms of using GET for retrieving / viewing information and POST for creating / editing information as mentioned here:
When do you use POST and when do you use GET?

JSON parsing android

I need advice about my code.
I'm trying to parse a JSON array generated by the PHP function json_encode().
My json:
{"data": [{"streamer":"froggen","yt_length":"25078"},{"streamer":"wingsofdeath","yt_length":"8979"},{"streamer":"guardsmanbob","yt_length":"4790"},{"streamer":"kaostv","yt_length":"4626"},{"streamer":"kungentv","yt_length":"3883"},{"streamer":"destiny","yt_length":"3715"},{"streamer":"zekent","yt_length":"3428"},{"streamer":"athenelive","yt_length":"1673"},{"streamer":"frommaplestreet","yt_length":"1614"},{"streamer":"keyorikeys","yt_length":"1410"},{"streamer":"riotgamesturkish","yt_length":"1397"},{"streamer":"vman7","yt_length":"1022"},{"streamer":"tiensinoakuma","yt_length":"967"},{"streamer":"affenklappe","yt_length":"748"},{"streamer":"teamkeyd","yt_length":"747"},{"streamer":"lagtvmaximusblack","yt_length":"683"},{"streamer":"lolgameru","yt_length":"665"},{"streamer":"gruntartv","yt_length":"585"},{"streamer":"entenzwerg","yt_length":"579"},{"streamer":"lolgameru_cauthonpro","yt_length":"506"},{"streamer":"basickz","yt_length":"488"},{"streamer":"ilysuiteheart","yt_length":"491"},{"streamer":"kireiautumn","yt_length":"485"},{"streamer":"ultimavv","yt_length":"471"}]}
Java class:
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
String response = "";
// constructor
public JSONParser() {
}
public JSONObject getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpPost = new HttpGet(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), 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 activity:
public class AndroidJSONParsingActivity extends ListActivity {
// url to make request
private static String url = "http://ololo.tv/vasa";
// JSON Node names
private static final String TAG_DATA = "data";
private static final String TAG_STREAMER = "streamer";
private static final String TAG_VIEWERS = "yt_length";
// contacts JSONArray
JSONArray data = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Hashmap for ListView
ArrayList<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>();
// Creating JSON Parser instance
JSONParser Parser = new JSONParser();
// getting JSON string from URL
JSONObject json = null;
json = Parser.getJSONFromUrl(url);
try {
// Getting Array of Contacts
data = json.getJSONArray(TAG_DATA);
// looping through All Contacts
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
// Storing each json item in variable
String streamer = c.getString(TAG_STREAMER);
String viewers = c.getString(TAG_VIEWERS);
//String link = c.getString();
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_STREAMER, streamer);
map.put(TAG_VIEWERS, viewers);
//map.put(TAG_URL, link);
// adding HashList to ArrayList
dataList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(this, dataList,
R.layout.list_item,
new String[] { TAG_STREAMER, TAG_VIEWERS /*TAG_URL*/ }, new int[] {
R.id.streamer, R.id.viewers /*R.id.url*/ });
setListAdapter(adapter);
// selecting single ListView item
ListView lv = getListView();
// Launching new screen on Selecting Single ListItem
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.streamer)).getText().toString();
String viewers_count = ((TextView) view.findViewById(R.id.viewers)).getText().toString();
//String url = ((TextView) view.findViewById(R.id.url)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class);
in.putExtra(TAG_STREAMER, name);
in.putExtra(TAG_VIEWERS, viewers_count);
//in.putExtra(TAG_PHONE_MOBILE, url);
startActivity(in);
}
});
}
}
I tried using breakpoints, and see that when I put a breakpoint after GetEntity, the program doesn't get there because it crashed early, or something.
This my async task.
public class ParsingTask extends AsyncTask<String, Void, Void>{
JSONParser Parser = new JSONParser();
protected Void doInBackground(String... urls) {
ArrayList<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>();
JSONObject json = Parser.getJSONFromUrl(url);
try {
// Getting Array of Contacts
data = json.getJSONArray(TAG_DATA);
// looping through All Contacts
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
// Storing each json item in variable
String streamer = c.getString(TAG_STREAMER);
String viewers = c.getString(TAG_VIEWERS);
//String link = c.getString();
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_STREAMER, streamer);
map.put(TAG_VIEWERS, viewers);
//map.put(TAG_URL, link);
// adding HashList to ArrayList
dataList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(this, dataList,
R.layout.list_item,
new String[] { TAG_STREAMER, TAG_VIEWERS /*TAG_URL*/ }, new int[] {
R.id.streamer, R.id.viewers /*R.id.url*/ });
setListAdapter(adapter);
return null;
}
protected void onProgressUpdate() {
}
protected void onPostExecute() {
}
}
ListAdapter error, seems like something wrong in "this". This my version how cut off code, where it stop return variables. Sorry for bad english, but i hope you understand me :)
Add my php json maker. Mb problem there?!
<?php
mysql_connect("localhost","root","");
if (!mysql_select_db("ololo")) {
echo "Unable to select ololo: " . mysql_error();
}
$sql=mysql_query("select streamer, yt_length from pm_videos where category='1'");
if(!$sql) exit("Error - ".mysql_error().", ".$tmp_q);
while($row=mysql_fetch_assoc($sql)){
$output[]=$row;
}
$json = json_encode($output);
header('Content-Type: application/json');
print "{\"data\": ${json}}";
mysql_close();
?>

You programm crashes because you are running
json = Parser.getJSONFromUrl(url);
in the UI Thread context. You have to use an AsyncTask
Code looks good. The only problem is that
public class ParsingTask extends AsyncTask<String, Void, ArrayList<HashMap<String, String>>>{
JSONParser Parser = new JSONParser();
protected Void doInBackground(String... urls) {
ArrayList<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>();
JSONObject json = Parser.getJSONFromUrl(url);
try {
// Getting Array of Contacts
data = json.getJSONArray(TAG_DATA);
// looping through All Contacts
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
// Storing each json item in variable
String streamer = c.getString(TAG_STREAMER);
String viewers = c.getString(TAG_VIEWERS);
//String link = c.getString();
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_STREAMER, streamer);
map.put(TAG_VIEWERS, viewers);
//map.put(TAG_URL, link);
// adding HashList to ArrayList
dataList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
/**
* Updating parsed JSON data into ListView
* */
return dataList;
}
protected void onPostExecute(ArrayList<HashMap<String, String>> dataList) {
ListAdapter adapter = new SimpleAdapter(AndroidJSONParsingActivity.this, dataList,
R.layout.list_item,
new String[] { TAG_STREAMER, TAG_VIEWERS /*TAG_URL*/ }, new int[] {
R.id.streamer, R.id.viewers /*R.id.url*/ });
setListAdapter(adapter);
}

Have you heard about gson (docs)?
public static final class Content {
#SerializedName("streamer") // you don't need to specify this, JFYI
String streamer;
#SerializedName("yt_length") // you don't need to specify this, JFYI
String yt_length;
}
public static final class Data {
#SerializedName("data")
List<Content> data;
}
public static void main (String[] args) {
Gson gson = new GsonBuilder().create();
Data data = gson.fromJson(jsonString, Data.class);
}
And remember, you cannot call network operations on UI thread! this is reason of what you have for now.

json data
[
-{
Cat_Id: 21
Cat_Title: "Electronics"
Cat_Description: null
Cat_Status: 0
Cat_CreatedBy: 0
Cat_CreatedDate: "0001-01-01T00:00:00"
Cat_UpdatedBy: 0
Cat_UpdatedDate: "0001-01-01T00:00:00"
}
Category class
public class Category {
public int Cat_Id;
public String Cat_Title = null;;
public Category() {
}
public int getCat_Id() {
return Cat_Id;
}
public void setCat_Id(int Cat_Id) {
this.Cat_Id = Cat_Id;
}
}
BaseActivity
public class BaseActivity extends Activity {
public ProgressDialog progressDialog;
public SharedPreferences prefs;
public JSONObject jsonObject;
public JSONObject jsonObject1;
public static String pref_setting = "Category_setting";
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// TODO Auto-generated method stub
progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Loading..");
prefs = PreferenceManager.getDefaultSharedPreferences(this);
Preferences.AppContext = this;
}
protected void onStop() {
super.onStop();
if (progressDialog != null && progressDialog.isShowing()) {
progressDialog.dismiss();
}
}
}
Soap
public class Soap {
// public static String BaseURL = "";
public static String BaseURL = "";
public static String imgURL = "";
public static String getSoapResponseByGet(String postFixOfUrl)
throws ClientProtocolException, IOException {
if (Preferences.AppContext != null
&& Preferences.isOnline(Preferences.AppContext)) {
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet(BaseURL + postFixOfUrl);
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
String xmlString = EntityUtils.toString(entity);
return xmlString.toString();
} else {
return "{\"error\":{\"no_internet\":\"No internet connection\"}}";
}
}
public static String getSoapResponse(String postFixOfUrl)
throws ClientProtocolException, IOException {
if (Preferences.AppContext != null
&& Preferences.isOnline(Preferences.AppContext)) {
HttpPost httpPost = new HttpPost(BaseURL + postFixOfUrl);
StringEntity se = new StringEntity("", HTTP.UTF_8);
se.setContentType("text/xml");
httpPost.setHeader("Content-Type", "text/xml;charset=utf-8");
httpPost.setEntity(se);
HttpClient httpClient = new DefaultHttpClient();
BasicHttpResponse httpResponse = (BasicHttpResponse) httpClient
.execute(httpPost);
HttpEntity r_Entity = httpResponse.getEntity();
String xmlString = EntityUtils.toString(r_Entity);
return xmlString.toString();
} else {
return "{\"error\":{\"no_internet\":\"No internet connection\"}}";
}
}
public static String getSoapResponseByPost(String postFixOfUrl,
ArrayList<NameValuePair> nameValuePairs)
throws ClientProtocolException, IOException {
if (Preferences.AppContext != null
&& Preferences.isOnline(Preferences.AppContext)) {
HttpPost httpPost = new HttpPost(BaseURL + postFixOfUrl);
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
HttpClient httpClient = new DefaultHttpClient();
BasicHttpResponse httpResponse = (BasicHttpResponse) httpClient
.execute(httpPost);
HttpEntity r_Entity = httpResponse.getEntity();
String xmlString = EntityUtils.toString(r_Entity);
return xmlString.toString();
} else {
return "{\"error\":{\"no_internet\":\"No internet connection\"}}";
}
}
// ////////// api for Category //////////////
http://sharafdg.digitarabia.com/sharafdg/api/Category
public static String apiGetCategory() throws ClientProtocolException,
IOException {
String result = Soap.getSoapResponseByGet("api/Category");
Log.e("SOAP", result);
return result;
}
public static String apiGetstore(int catid, int brandid, int modelid,
String variant) throws ClientProtocolException, IOException {
String result = Soap.getSoapResponseByGet("api/stores/?catid=" + catid
+ "&brandid=" + brandid + "&modelid=" + modelid + "&variant="
+ variant);
Log.e("SOAPSTORE", "api/stores/?catid=" + catid);
Log.e("SOAPSTORE", "api/stores/?&brandid=" + brandid);
Log.e("SOAPSTORE", "api/stores/?&modelid=" + modelid);
Log.e("SOAPSTORE", "api/stores/?&variant=" + variant);
return result;
}
-------------- post method hoy to -----------------
http://kallapp.madword-media.co.uk/company.php?category_id=11
http://kallapp.madword-media.co.uk/categories.php
public static String apiGetCategory() throws ClientProtocolException,
IOException {
ArrayList<NameValuePair> alNameValuePairs = new
ArrayList<NameValuePair>();
String result = Soap.getSoapResponseByPost("categories.php",
alNameValuePairs);
return result;
}
public static String apiGetcompanies(String category_id)
throws ClientProtocolException, IOException {
ArrayList<NameValuePair> alNameValuePairs = new
ArrayList<NameValuePair>();
// NameValuePair nameValuePairs = new BasicNameValuePair("",
// category_id);
// alNameValuePairs.add(nameValuePairs);
String result = Soap.getSoapResponse("company.php?category_id="
+ category_id);
Log.e("SOAP", result);
return result;
}
public static String apiGetDepaName(String category_id, String
company_id)
throws ClientProtocolException, IOException {
ArrayList<NameValuePair> alNameValuePairs = new
ArrayList<NameValuePair>();
NameValuePair nameValuePair = new BasicNameValuePair("category_id",
category_id);
alNameValuePairs.add(nameValuePair);
nameValuePair = new BasicNameValuePair("company_id", company_id);
alNameValuePairs.add(nameValuePair);
String result =
Soap.getSoapResponseByPost("department.php?",alNameValuePairs);
return result;
}
Category_list
public class Category_list extends BaseActivity {
int currentCategoryid;
private ArrayList<Category> cat = new ArrayList<Category>();
ArrayList<String> list = new ArrayList<String>();
Spinner spinner;
Button btncompare;
private int catid;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// TODO Auto-generated method stub
setContentView(R.layout.activity_webservices);
spinner = (Spinner) findViewById(R.id.spinner);
btncompare = (Button) findViewById(R.id.btncompare);
spinner.setOnItemSelectedListener(new OnItemSelected());
new getCategoryTask().execute();
btncompare.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(getBaseContext(), Store.class);
intent.putExtra("catid", catid);
startActivity(intent);
}
});
}
public class OnItemSelected implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// ((TextView) arg0.getChildAt(0)).setTextColor(Color.GREEN);
catid = cat.get(arg2).Cat_Id;
String cateid = String.valueOf(catid);
Log.e("cateid_category", cateid);
// new getBrandTask().execute();
}
public void onNothingSelected(AdapterView<?> arg0) {
}
}
private class getCategoryTask extends AsyncTask<Void, Void, Void> {
Category category;
String categoryJsonStr;
public getCategoryTask() {
category = new Category();
}
protected void onPreExecute() {
super.onPreExecute();
// progressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
-----------------------admin email-pass-------------
JSONObject jsonObject = new JSONObject(userJsonStr);//
jsonUserArray.getJSONObject(i);
currentUserid = jsonObject.getInt("Use_Id");
if (currentUserid > 0) {
if (!jsonObject.isNull("Use_Id")) {
id = jsonObject.getInt("Use_Id");
}
}
--------------------kallapp---------
try {
Log.i("categoryJsonStr", categoryJsonStr);
JSONObject jsonObject = new JSONObject(categoryJsonStr);
JSONArray jsonCatArray = jsonObject.getJSONArray("categories");
for (int i = 0; i < jsonCatArray.length(); i++) {
Category objcategory = new Category();
jsonObject = jsonCatArray.getJSONObject(i);
--------------------------------------------------------------
try {
// categoryJsonStr = Soap.apiGetCategory();
Log.e("categoryJsonStr", categoryJsonStr);
JSONArray jsonCatArray = new JSONArray(categoryJsonStr);
Category category = new Category();
// category.Cat_Id = -1;
category.Cat_Title = "Select Category";
cat.add(category);
list.add(category.Cat_Title);
for (int i = 0; i < jsonCatArray.length(); i++) {
Category objcategory = new Category();
JSONObject jsonObject = jsonCatArray.getJSONObject(i);
currentCategoryid = jsonObject.getInt("Cat_Id");
if (!jsonObject.isNull("Cat_Title")) {
objcategory.setCat_Title(jsonObject
.getString("Cat_Title"));
}
if (!jsonObject.isNull("Cat_Id")) {
objcategory.setCat_Id(jsonObject.getInt("Cat_Id"));
}
cat.add(objcategory);
list.add(objcategory.Cat_Title);
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
return null;
}
public void onPostExecute(Void result) {
super.onPostExecute(result);
// progressDialog.dismiss();
spinner.setAdapter(new ArrayAdapter<String>(Category_list.this,
android.R.layout.simple_spinner_item, list));
spinner.setSelection(0, true);
}
}
}
-------------more than one item fill--------
store_lists.add(objStore_list);
public void onPostExecute(Void result) {
super.onPostExecute(result);
store_adapter = new Store_adapter(Store.this, store_lists);
lv_store.setAdapter(store_adapter);
store_adapter.notifyDataSetChanged();
}
Preferences
public class Preferences {
public static Context AppContext = null;
public static String categoryid;
public static boolean isOnline(Context c) {
ConnectivityManager cm = (ConnectivityManager) c
.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo() != null
&& cm.getActiveNetworkInfo().isConnectedOrConnecting();
}
}
Store_adapter
private Context mContext;
private int ImageCount;
private ArrayList<Store_list> store_lists = new ArrayList<Store_list>();
public ImageLoader imageLoader;
ImageView imgsave, imgpackage, img_up_arrow, img_dun_arrow;
TextView txtsave;
RelativeLayout relatv;
public Store_adapter(Context c, ArrayList<Store_list> store_lists) {
mContext = c;
this.store_lists = store_lists;
this.ImageCount = store_lists.size();
imageLoader = new ImageLoader(c);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
// ImageCount = store_lists.size();
return this.ImageCount;
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
this.ImageCount = store_lists.size();
}
public void remove(int position) {
store_lists.remove(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View vi = inflater.inflate(R.layout.storelist, parent, false);
TextView name = (TextView) vi.findViewById(R.id.txtprise);
ImageView imgview = (ImageView) vi.findViewById(R.id.imgve);
Store_list list = store_lists.get(position);
imageLoader.DisplayImage(list.Store_logo, imgview);
name.setText(String.valueOf(list.Mod_Price));
return vi;
}
}
menifestfile
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"
/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
/>

public static String getSoapResponse(String postFixOfUrl) {
try {
if (General.AppContext != null
&& General.isOnline(General.AppContext)) {
HttpGet httpget = new HttpGet(BaseURL + postFixOfUrl);
Log.i("SOAP", "URI:" + BaseURL + postFixOfUrl);
httpget.setHeader("Content-Type",
"application/json;charset=utf-8");
HttpClient httpclient = new DefaultHttpClient();
BasicHttpResponse httpResponse = (BasicHttpResponse) httpclient
.execute(httpget);
HttpEntity r_entity = httpResponse.getEntity();
String xmlString = EntityUtils.toString(r_entity);
return xmlString.toString();
} else {
// return
// "[{\"erorr\":{\"no_internet\":\"No internet connection\"}}]";
if (General.AppActivity != null) {
General.AppActivity.runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(
General.AppContext,
General.AppContext
.getResources()
.getString(
R.string.no_internet_connection),
Toast.LENGTH_SHORT).show();
}
});
}
return null;
}
} catch (Exception e) {
HandleException.catchException(e, true);
}
return null;
}
// post method
public static String getSoapResponseByPost(String postFixOfUrl,
ArrayList<NameValuePair> nameValuePairs)
throws ClientProtocolException, IOException {
try {
if (General.AppContext != null
&& General.isOnline(General.AppContext)) {
HttpPost httppost = new HttpPost(BaseURL + postFixOfUrl);
Log.i("SOAP", "URI:" + BaseURL + postFixOfUrl);
// httppost.setHeader("Content-Type",
// "text/html;charset=utf-8");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs,
"UTF-8"));
HttpClient httpclient = new DefaultHttpClient();
BasicHttpResponse httpResponse = (BasicHttpResponse) httpclient
.execute(httppost);
HttpEntity r_entity = httpResponse.getEntity();
String xmlString = EntityUtils.toString(r_entity);
return xmlString.toString();
} else {
// return
// "[{\"erorr\":{\"no_internet\":\"No internet connection\"}}]";
if (General.AppActivity != null) {
General.AppActivity.runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(
General.AppContext,
General.AppContext
.getResources()
.getString(
R.string.no_internet_connection),
Toast.LENGTH_SHORT).show();
}
});
}
return null;
}
} catch (Exception e) {
HandleException.catchException(e, true);
}
return null;
}
public static String getSoapResponseForImage(String postFixOfUrl,
List<NameValuePair> nameValuePairs,
List<NameValuePair> filenameValuePairs) {
String xmlString = null;
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(BaseURL + postFixOfUrl);
try {
MultipartEntity entity = new MultipartEntity();
for (int index = 0; index < filenameValuePairs.size(); index++) {
File myFile = new File(filenameValuePairs.get(index).getValue());
if (myFile.exists()) {
FileBody fileBody = new FileBody(myFile);
entity.addPart(filenameValuePairs.get(index).getName(),
fileBody);
}
}
for (int index = 0; index < nameValuePairs.size(); index++) {
entity.addPart(nameValuePairs.get(index).getName(),
new StringBody(nameValuePairs.get(index).getValue(),
Charset.forName("UTF-8")));
}
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost, localContext);
HttpEntity r_entity = response.getEntity();
xmlString = EntityUtils.toString(r_entity);
} catch (IOException e) {
e.printStackTrace();
}
Log.d("SOAP ", "Result : " + xmlString.toString());
return xmlString.toString();
}
public class ParsedResponse {
public Object o;
public boolean error = false;
}
public class General {
public static Context AppContext = null;
public static Activity AppActivity = null;
public static boolean isOnline(Context c) {
ConnectivityManager cm = (ConnectivityManager) c
.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo() != null
&& cm.getActiveNetworkInfo().isConnectedOrConnecting();
}}
public class BaseActivity extends Activity {
protected SharedPreferences prefs;
public ProgressDialog progressDialog;
General.AppContext = getApplicationContext();
General.AppActivity = BaseActivity.this;
prefs = PreferenceManager.getDefaultSharedPreferences(this);}
public class ErrorMgmt {
private Boolean error;
private String errorMessage;
private String exceptionMessage;
public ErrorMgmt(String exceptionMessage) {
error = false;
errorMessage = "";
this.exceptionMessage = exceptionMessage;
}
public ErrorMgmt() {
error = false;
errorMessage = "";
exceptionMessage = "";
}
public String getErrorMessage() {
if (error) {
if (errorMessage.equals("")) {
return exceptionMessage;
} else {
return errorMessage;
}
}
return null;
}
#SuppressWarnings("rawtypes")
public Boolean strError(String JsonResponse) {
this.error = false;
errorMessage = "";
try {
JSONObject objJson = new JSONObject(JsonResponse);
String strJson = objJson.getString("JsonResponse");
if(!strJson.equals("Please enter valid email")) {
this.error = true ;
errorMessage = "";
} else {
this.error = false;
}
} catch (JSONException e) {
this.error = true;
errorMessage = "";
HandleException.catchException(e, true);
}
return this.error;
}
#SuppressWarnings("rawtypes")
public Boolean isObjError(String JsonResponse) {
this.error = false;
errorMessage = "";
try {
JSONObject objJson = new JSONObject(JsonResponse);
if (objJson != null && !objJson.isNull("error") ) {
this.error = true;
Iterator IError = objJson.keys();
errorMessage = "";
while (IError.hasNext()) {
String key = (String) IError.next();
errorMessage += objJson.getString(key) + "\n";
}
} else if (objJson != null && !objJson.isNull("statusCode")) {
Integer statusCode = objJson.getInt("statusCode");
if (statusCode > 200) {
this.error = true;
} else {
this.error = false;
}
} else {
this.error = false;
}
} catch (JSONException e) {
this.error = true;
errorMessage = "";
HandleException.catchException(e, true);
}
return this.error;
}
#SuppressWarnings("rawtypes")
public Boolean isError(String JsonResponse) {
this.error = false;
errorMessage = "";
try {
JSONArray arrJson = new JSONArray(JsonResponse);
if (!arrJson.isNull(0) && !arrJson.getJSONObject(0).isNull("erorr")) {
this.error = true;
JSONObject objError = arrJson.getJSONObject(0);
Iterator IError = objError.keys();
errorMessage = "";
while (IError.hasNext()) {
String key = (String) IError.next();
errorMessage += objError.getString(key) + "\n";
}
} else if (!arrJson.isNull(0)
&& !arrJson.getJSONObject(0).isNull("statusCode")) {
Integer statusCode = arrJson.getJSONObject(0).getInt(
"statusCode");
if (statusCode > 200) {
this.error = true;
} else {
this.error = false;
}
} else {
this.error = false;
}
} catch (JSONException e) {
this.error = true;
errorMessage = "";
HandleException.catchException(e, true);
}
return this.error;
}
public void SetForsedError(Boolean val) {
error = true;
}
}
// Api for register with Email
public static ParsedResponse apiRegister(String name, String email,
String password) throws Exception {
ArrayList<NameValuePair> alNameValuePairs = new ArrayList<NameValuePair>();
NameValuePair nameValuePair = new BasicNameValuePair("name", name);
alNameValuePairs.add(nameValuePair);
nameValuePair = new BasicNameValuePair("email", email);
alNameValuePairs.add(nameValuePair);
nameValuePair = new BasicNameValuePair("password", password);
alNameValuePairs.add(nameValuePair);
// nameValuePair = new BasicNameValuePair("fb_uid", "");
// alNameValuePairs.add(nameValuePair);
String result = Soap.getSoapResponseByPost("user/register",
alNameValuePairs);
Log.e("apiRegister", result);
ErrorMgmt errMgmt = new ErrorMgmt(General.AppContext.getResources()
.getString(R.string.error_loading_data));
ParsedResponse p = new ParsedResponse();
p.error = false;
if (result != null && !result.equals("")) {
JSONObject jObject = new JSONObject(result);
String code = "";
if (!jObject.isNull("statusCode")) {
code = jObject.getString("statusCode");
}
if (code.equals("200")) {
JSONArray jsonArray = jObject.getJSONArray("User");
if (jsonArray.length() > 0) {
ArrayList<UserData> arrayList = new ArrayList<UserData>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
UserData objUserData = new UserData();
if (!jsonObject.isNull("uid")) {
objUserData.uid = jsonObject.getString("uid");
}
if (!jsonObject.isNull("name")) {
objUserData.name = jsonObject.getString("name");
}
if (!jsonObject.isNull("email")) {
objUserData.email = jsonObject.getString("email");
}
if (!jsonObject.isNull("password")) {
objUserData.password = jsonObject
.getString("password");
}
if (!jsonObject.isNull("created_date")) {
objUserData.created_date = jsonObject
.getString("created_date");
}
if (!jsonObject.isNull("status")) {
objUserData.status = jsonObject.getString("status");
}
if (!jsonObject.isNull("fb_uid")) {
objUserData.fb_uid = jsonObject.getString("fb_uid");
}
if (!jsonObject.isNull("account_type")) {
objUserData.account_type = jsonObject
.getString("account_type");
}
if (!jsonObject.isNull("profile_img")) {
objUserData.profile_img = jsonObject
.getString("profile_img");
}
if (!jsonObject.isNull("birthdate")) {
objUserData.birthdate = jsonObject
.getString("birthdate");
}
if (!jsonObject.isNull("city")) {
objUserData.city = jsonObject.getString("city");
}
JSONArray jsonArray2 = jsonObject
.getJSONArray("usersubscribe");
if (jsonArray2.length() > 0) {
for (int i1 = 0; i1 < jsonArray2.length(); i1++) {
JSONObject jsonObject2 = jsonArray2
.getJSONObject(i1);
if (!jsonObject2.isNull("isSubscribe")) {
objUserData.isSubscribe = jsonObject2
.getString("isSubscribe");
}
if (!jsonObject2.isNull("amount")) {
objUserData.amount = jsonObject2
.getString("amount");
}
}
}
arrayList.add(objUserData);
p.o = arrayList;
}
} else {
errMgmt = new ErrorMgmt(General.AppActivity.getResources()
.getString(R.string.err_norecords));
errMgmt.SetForsedError(true);
p.o = errMgmt;
p.error = true;
}
}
if (code.equals("401")) {
errMgmt = new ErrorMgmt(General.AppActivity.getResources()
.getString(R.string.allready_regi));
errMgmt.SetForsedError(true);
p.o = errMgmt;
p.error = true;
}
} else {
errMgmt = new ErrorMgmt(General.AppActivity.getResources()
.getString(R.string.err_norecords));
errMgmt.SetForsedError(true);
p.o = errMgmt;
p.error = true;
}
return p;
}
// Login with Facebook
private class GetFacebookLogin extends AsyncTask<Void, Void, Void> {
private ParsedResponse p = null;
private String message = "";
private Boolean error = false;
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
progressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
try {
p = new ParsedResponse();
p = Soap.apiUserLoginFacebook(fbID);
if (p.error) {
ErrorMgmt errmgmt = (ErrorMgmt) p.o;
message = errmgmt.getErrorMessage();
error = true;
} else {
arrayList.clear();
arrayList.addAll((ArrayList<UserData>) p.o);
error = false;
}
} catch (Exception e) {
message = "problem in loading data";
error = true;
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
progressDialog.dismiss();
if (error) {
new AlertDialog.Builder(Register_Login_Screen.this)
.setMessage(message)
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
}
}).show();
} else {
UserData objUserData = new UserData();
for (int i = 0; i < arrayList.size(); i++) {
objUserData = arrayList.get(i);
}
String profileImage = "";
try {
URL image_value = new URL("http://graph.facebook.com/"
+ fbID + "/picture?height=150&width=150");
profileImage = String.valueOf(image_value);
Log.e("fb_image_path", "" + image_value);
} catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Editor e = prefs.edit();
e.putBoolean(General.PREFS_login, true);
e.putString(General.PREFS_Uid, objUserData.uid);
e.putString(General.PREFS_name, objUserData.name);
e.putString(General.PREFS_email, objUserData.email);
e.putString(General.PREFS_fb_uid, objUserData.fb_uid);
e.putString(General.PREFS_logintype, General.PREFS_valuefblogin);
if (objUserData.profile_img != null
&& !objUserData.profile_img.equals("")) {
e.putString(General.PREFS_profile_img,
objUserData.profile_img);
} else {
e.putString(General.PREFS_profile_img, profileImage);
}
e.putString(General.PREFS_account_type,
objUserData.account_type);
e.putString(General.PREFS_birthdate, objUserData.birthdate);
e.putString(General.PREFS_city, objUserData.city);
e.putString(General.PREFS_subscribed, objUserData.isSubscribe);
e.putString(General.PREFS_amount, objUserData.amount);
String[] strings = null;
for (int i = 0; i < objUserData.screenerArr.size(); i++) {
String queString = objUserData.screenerArr.get(i);
strings = queString.split(",");
String question1 = strings[0];
e.putString("RosaRosa_screener_question" + (i + 1),
question1);
e.putBoolean("RosaRosa_screener_ans" + (i + 1), true);
String ans1 = strings[1];
e.putString(
"RosaRosa_screener_question" + (i + 1) + "_ans",
ans1);
Log.e("question", "" + question1 + ans1);
}
e.commit();
Toast.makeText(Register_Login_Screen.this, R.string.succ_login,
Toast.LENGTH_SHORT).show();
Intent intent = new Intent(Register_Login_Screen.this,
Personal_Stylist_Activity.class);
startActivity(intent);
finish();
}
}
}

Android - How to get specific data from URL/JSON?

So I have this code, which is a page with a ListView search field and a button to confirm the search, when the button is pressed the ListView is filled with movie names from the Rotten Tomatoes API, The problem is that someone helped me with this code, and I would love some help breaking it down and understanding it sentence after sentence, My main goal is to get is to get the "title", "synopsis" and "url image" of a movie that was clicked in the list, and pass it with an intent to my other activity but the whole JSON and get specific data stuff, got me very confused.
Link to Rotten Tomatoes API documentation, this is my code:
public class MovieAddFromWeb extends Activity implements View.OnClickListener,
OnItemClickListener {
private TextView searchBox;
private Button bGo, bCancelAddFromWeb;
private ListView moviesList;
public List<String> movieTitles;
static final int ACTIVITY_WEB_ADD = 3;
// the Rotten Tomatoes API key
private static final String API_KEY = "8q6wh77s65aw435cab9rbzsq";
// the number of movies to show in the list
private static final int MOVIE_PAGE_LIMIT = 8;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.movie_add_from_web);
InitializeVariables();
}
/*
* Initializing the variables and creating the bridge between the views from
* the xml file and this class
*/
private void InitializeVariables() {
searchBox = (EditText) findViewById(R.id.etSearchBox);
bGo = (Button) findViewById(R.id.bGo);
bCancelAddFromWeb = (Button) findViewById(R.id.bCancelAddFromWeb);
moviesList = (ListView) findViewById(R.id.list_movies);
bGo.setOnClickListener(this);
bCancelAddFromWeb.setOnClickListener(this);
moviesList.setOnItemClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bGo:
new RequestTask()
.execute("http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey="
+ API_KEY
+ "&q="
+ searchBox.getText()
+ "&page_limit=" + MOVIE_PAGE_LIMIT);
break;
case R.id.bCancelAddFromWeb:
finish();
break;
}
}
private void refreshMoviesList(List<String> movieTitles) {
moviesList.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, movieTitles
.toArray(new String[movieTitles.size()])));
}
private class RequestTask extends AsyncTask<String, String, String> {
// make a request to the specified url
#Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
// make a HTTP request
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else {
// close connection
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (Exception e) {
Log.d("Test", "Couldn't make a successful request!");
}
return responseString;
}
#Override
protected void onPostExecute(String response) {
super.onPostExecute(response);
try {
// convert the String response to a JSON object
JSONObject jsonResponse = new JSONObject(response);
// fetch the array of movies in the response
JSONArray jArray = jsonResponse.getJSONArray("movies");
// add each movie's title to a list
movieTitles = new ArrayList<String>();
for (int i = 0; i < jArray.length(); i++) {
JSONObject movie = jArray.getJSONObject(i);
movieTitles.add(movie.getString("title"));
}
// refresh the ListView
refreshMoviesList(movieTitles);
} catch (JSONException e) {
Log.d("Test", "Couldn't successfully parse the JSON response!");
}
}
}
#Override
public void onItemClick(AdapterView<?> av, View view, int position, long id) {
Intent openMovieEditor = new Intent(this, MovieEditor.class);
openMovieEditor.putExtra("movieTitle", movieTitles.get(position));
openMovieEditor.putExtra("callingActivity", ACTIVITY_WEB_ADD);
startActivityForResult(openMovieEditor, ACTIVITY_WEB_ADD);
}
}

see the modified code below..
public class MovieAddFromWeb extends Activity implements View.OnClickListener, OnItemClickListener {
private TextView searchBox;
private Button bGo, bCancelAddFromWeb;
private ListView moviesList;
public List<String> movieTitles;
//added new variables
public List<String> movieSynopsis;
public List<String> movieImgUrl;
static final int ACTIVITY_WEB_ADD = 3;
// the Rotten Tomatoes API key
private static final String API_KEY = "8q6wh77s65aw435cab9rbzsq";
// the number of movies to show in the list
private static final int MOVIE_PAGE_LIMIT = 8;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.movie_add_from_web);
InitializeVariables();
}
/*
* Initializing the variables and creating the bridge between the views from
* the xml file and this class
*/
private void InitializeVariables() {
searchBox = (EditText) findViewById(R.id.etSearchBox);
bGo = (Button) findViewById(R.id.bGo);
bCancelAddFromWeb = (Button) findViewById(R.id.bCancelAddFromWeb);
moviesList = (ListView) findViewById(R.id.list_movies);
bGo.setOnClickListener(this);
bCancelAddFromWeb.setOnClickListener(this);
moviesList.setOnItemClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bGo:
new RequestTask()
.execute("http://api.rottentomatoes.com/api/public/v1.0/movies.json?apikey="
+ API_KEY
+ "&q="
+ searchBox.getText()
+ "&page_limit=" + MOVIE_PAGE_LIMIT);
break;
case R.id.bCancelAddFromWeb:
finish();
break;
}
}
private void refreshMoviesList(List<String> movieTitles) {
moviesList.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, movieTitles
.toArray(new String[movieTitles.size()])));
}
private class RequestTask extends AsyncTask<String, String, String> {
// make a request to the specified url
#Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String responseString = null;
try {
// make a HTTP request
response = httpclient.execute(new HttpGet(uri[0]));
StatusLine statusLine = response.getStatusLine();
if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else {
// close connection
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (Exception e) {
Log.d("Test", "Couldn't make a successful request!");
}
return responseString;
}
#Override
protected void onPostExecute(String response) {
super.onPostExecute(response);
try {
// convert the String response to a JSON object
JSONObject jsonResponse = new JSONObject(response);
// fetch the array of movies in the response
JSONArray jArray = jsonResponse.getJSONArray("movies");
// add each movie's title to a list
movieTitles = new ArrayList<String>();
//newly added
movieSynopsis = new ArrayList<String>();
movieImgUrl= new ArrayList<String>();
for (int i = 0; i < jArray.length(); i++) {
JSONObject movie = jArray.getJSONObject(i);
movieTitles.add(movie.getString("title"));
movieSynopsis.add(movie.getString(#add the synopsis var name returned by the JSON));
movieImgUrl.add(movie.getString(#add the urlvar name returned by the JSON));
}
// refresh the ListView
refreshMoviesList(movieTitles);
} catch (JSONException e) {
Log.d("Test", "Couldn't successfully parse the JSON response!");
}
}
}
#Override
public void onItemClick(AdapterView<?> av, View view, int position, long id) {
Intent openMovieEditor = new Intent(this, MovieEditor.class);
openMovieEditor.putExtra("movieTitle", movieTitles.get(position));
//newly added
openMovieEditor.putExtra("movieSynopsis", movieSynopsis.get(position));
openMovieEditor.putExtra("movieImgUrl", movieImgUrl.get(position));
openMovieEditor.putExtra("callingActivity", ACTIVITY_WEB_ADD);
startActivityForResult(openMovieEditor, ACTIVITY_WEB_ADD);
}