How can i get the values of a json key in Java here is my code
private void getWebApiData() {
String WebDataUrl = "myjsonfileurl";
new AsyncHttpTask.execute(WebDataUrl);
}
#SuppressLint("StaticFieldLeak")
public class AsyncHttpTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
String result = "";
URL url;
HttpsURLConnection urlConnection = null;
try {
url = new URL(urls[0]);
urlConnection = (HttpsURLConnection) url.openConnection();
if (result != null) {
String response = streamToString(urlConnection.getInputStream());
parseResult(response);
return result;
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result) {
if (result != null) {
newsAdapter = new NewsAdapter(getActivity(), newsClassList);
listView.setAdapter(newsAdapter);
Toast.makeText(getContext(), "Data Loaded Successfully", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getContext(), "Failed to load data!", Toast.LENGTH_SHORT).show();
}
progressBar.setVisibility(View.GONE);
}
}
private String streamToString(InputStream stream) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(stream));
String line;
String result = "";
while ((line = bufferedReader.readLine()) != null) {
result += line;
}
// Close stream
if (null != stream) {
stream.close();
}
return result;
}
private void parseResult_GetWebData(String result) {
try {
JSONObject jsonObject = new JSONObject(result);
JSONArray jsonArray = jsonObject.getJSONArray("books");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject articleObject = jsonArray.getJSONObject(i);
JSONObject sourceObject = articleObject.getJSONObject("A");
String name = sourceObject.optString("name");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
My json file
{
"books": [
{
"A": [
{
"Amazonite": {
"name": "Amazonite",
"image": "www.google.com"
},
"Amethyst": {
"name": "Amethyst",
"image": "www.google.com"
}
}
],
"B": [
{
"Beryl": {
"name": "Beryl",
"image": "www.google.com"
},
"BloodStone": {
"name": "Bloodstone",
"image": "www.google.com"
}
}
]
}
]
}
What i would like is how to get the values of data under the Alphabet A that is Amazonite and Amethyst and the value of data under Alphabet B but the could i have just give me empty text field nothing no data is being populated.
I have tried with this code but the values retures "null"
private void parseResult_GetWebData(String result) {
try {
JSONObject jsonObject = new JSONObject(result);
JSONArray jsonArray = jsonObject.getJSONArray("books");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject articleObject = jsonArray.getJSONObject(i);
String name = String.valueOf(articleObject.optJSONObject("A"));
}
} catch (JSONException e) {
e.printStackTrace();
}
}
I am not sure what you really want, but if you just want to get "Amazonite and Amethyst" as you responded under OP, you can try this:
Code snippet
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject articleObject = jsonArray.getJSONObject(i);
JSONArray jsonArrayA = articleObject.getJSONArray("A");
for (int j = 0; j < jsonArrayA.length(); j++) {
JSONObject obj = jsonArrayA.getJSONObject(j);
System.out.println(obj.names());
obj.names().forEach(e -> {
System.out.println(obj.getJSONObject(e.toString()).get("name"));
});
}
}
Console output
["Amazonite","Amethyst"]
Amazonite
Amethyst
Update
I am not sure which name you want to retrieve because both Amazonite and Amethyst appear two times in JSON array A, so I provide two ways to show them as follows:
List<String> names = new ArrayList<>();
List<String> innerNames = new ArrayList<>();
for (int j = 0; j < jsonArrayA.length(); j++) {
JSONObject obj = jsonArrayA.getJSONObject(j);
JSONArray keys = obj.names();
for (int k = 0; k < keys.length(); k++) {
String name = keys.getString(k);
String innerName = obj.getJSONObject(keys.optString(k)).getString("name");
System.out.printf("name: %s, inner name: %s\n", name, innerName);
names.add(name);
innerNames.add(innerName);
}
}
System.out.println(names.toString());
System.out.println(innerNames.toString());
Console output
name: Amazonite, inner name: Amazonite
name: Amethyst, inner name: Amethyst
[Amazonite, Amethyst]
[Amazonite, Amethyst]
Related
i am trying to change my api from last.fm to deezer and it has been a hurdle for me. please help. below is my code and endpoints.
LAST.fm endpoint : http://ws.audioscrobbler.com/2.0/?method=track.getInfo&api_key=c3bbdcbc61af20f159e92612a56c4122&artist=ynw%20melly&track=suicidal&format=json
Deezer endpoint : http://api.deezer.com/search?q=Alan%20Walker%20-%20Darkside
JAVA CODE
static String parsingImageSong(String data) {
if (!TextUtils.isEmpty(data)) {
try {
JSONObject mJsonObject = new JSONObject(data);
if (mJsonObject.opt("track") != null) {
JSONObject mJsTracks = mJsonObject.getJSONObject("track");
if (mJsTracks.opt("album") != null) {
JSONObject mJsAlbum = mJsTracks.getJSONObject("album");
if (mJsAlbum.opt("image") != null) {
JSONArray mJsImgs = mJsAlbum.getJSONArray("image");
if (mJsImgs.length() > 0) {
for (int j = 0; j < mJsImgs.length(); j++) {
JSONObject mJsImg = mJsImgs.getJSONObject(j);
String sizeImg = mJsImg.getString("size");
if (sizeImg.equalsIgnoreCase("extralarge")) {
return mJsImg.getString("#text").replace("300x300","3000x3000");
}
}
}
}
}
}
}
catch (JSONException e) {
e.printStackTrace();
}
}
return null;
}
}
I have a JSON that looks like below,
{
"users": [
{
"displayName": "Sharad Dutta",
"givenName": "",
"surname": "",
"extension_user_type": "user",
"identities": [
{
"signInType": "emailAddress",
"issuerAssignedId": "kkr007#gmail.com"
}
],
"extension_timezone": "VET",
"extension_locale": "en-GB",
"extension_tenant": "EG12345"
},
{
"displayName": "Sharad Dutta",
"givenName": "",
"surname": "",
"extension_user_type": "user",
"identities": [
{
"signInType": "emailAddress",
"issuerAssignedId": "kkr007#gmail.com"
}
],
"extension_timezone": "VET",
"extension_locale": "en-GB",
"extension_tenant": "EG12345"
}
]
}
I have the above code and it is able to flatten the JSON like this,
{
"extension_timezone": "VET",
"extension_tenant": "EG12345",
"extension_locale": "en-GB",
"signInType": "userName",
"displayName": "Wayne Rooney",
"surname": "Rooney",
"givenName": "Wayne",
"issuerAssignedId": "pdhongade007",
"extension_user_type": "user"
}
But the code is returning only the last user in the "users" array of JSON. It is not returning the first user (essentially the last user only, no matter how many users are there) just the last one is coming out in flattened form from the "users" array.
public class TestConvertor {
static String userJsonAsString;
public static void main(String[] args) throws JSONException {
String userJsonFile = "C:\\Users\\Administrator\\Desktop\\jsonRes\\json_format_user_data_input_file.json";
try {
userJsonAsString = readFileAsAString(userJsonFile);
} catch (Exception e1) {
e1.printStackTrace();
}
JSONObject object = new JSONObject(userJsonAsString); // this is your input
Map<String, Object> flatKeyValue = new HashMap<String, Object>();
System.out.println("flatKeyValue : " + flatKeyValue);
readValues(object, flatKeyValue);
System.out.println(new JSONObject(flatKeyValue)); // this is flat
}
static void readValues(JSONObject object, Map<String, Object> json) throws JSONException {
for (Iterator it = object.keys(); it.hasNext(); ) {
String key = (String) it.next();
Object next = object.get(key);
readValue(json, key, next);
}
}
static void readValue(Map<String, Object> json, String key, Object next) throws JSONException {
if (next instanceof JSONArray) {
JSONArray array = (JSONArray) next;
for (int i = 0; i < array.length(); ++i) {
readValue(json, key, array.opt(i));
}
} else if (next instanceof JSONObject) {
readValues((JSONObject) next, json);
} else {
json.put(key, next);
}
}
private static String readFileAsAString(String inputJsonFile) throws Exception {
return new String(Files.readAllBytes(Paths.get(inputJsonFile)));
}
}
Please suggest where I am doing wrong or my code needs modification.
Please try the below approach, this will give you a comma separated format for both user and identifier (flat file per se),
public static void main(String[] args) throws JSONException, ParseException {
String userJsonFile = "path to your JSON";
final StringBuilder sBuild = new StringBuilder();
final StringBuilder sBuild2 = new StringBuilder();
try {
String userJsonAsString = convert your JSON to string and store in var;
} catch (Exception e1) {
e1.printStackTrace();
}
JSONParser jsonParser = new JSONParser();
JSONObject output = (JSONObject) jsonParser.parse(userJsonAsString);
try {
JSONArray docs = (JSONArray) output.get("users");
Iterator<Object> iterator = docs.iterator();
while (iterator.hasNext()) {
JSONObject userEleObj = (JSONObject)iterator.next();
JSONArray nestedIdArray = (JSONArray) userEleObj.get("identities");
Iterator<Object> nestIter = nestedIdArray.iterator();
while (nestIter.hasNext()) {
JSONObject identityEleObj = (JSONObject)nestIter.next();
identityEleObj.keySet().stream().forEach(key -> sBuild2.append(identityEleObj.get(key) + ","));
userEleObj.keySet().stream().forEach(key -> {
if (StringUtils.equals((CharSequence) key, "identities")) {
sBuild.append(sBuild2.toString());
sBuild2.replace(0, sBuild2.length(), "");
} else {
sBuild.append(userEleObj.get(key) + ",");
}
});
}
sBuild.replace(sBuild.lastIndexOf(","), sBuild.length(), "\n");
}
System.out.println(sBuild);
} catch (Exception e) {
e.printStackTrace();
}
}
I'm getting json from server like in this pattern.
[
{
"Response":[
{
"CategoryID":1,
"CategoryName":"Software",
"Count":1,
"Tasks":[
{
"ATId":17,
"TaskName":"Def",
"TaskId":17,
"TaskDetails":"FGH"
}
]
},
{
"CategoryID":2,
"CategoryName":"Hardware",
"Count":5,
"Tasks":[
{
"ATId":3,
"TaskName":"Def",
"TaskId":5,
"TaskDetails":"FGH"
},
{
"ATId":4,
"TaskName":"Def",
"TaskId":6,
"TaskDetails":"FGH"
},
{
"ATId":6,
"TaskName":"Def",
"TaskId":6,
"TaskDetails":"FGH"
},
{
"ATId":11,
"TaskName":"Def",
"TaskId":13,
"TaskDetails":"FGH"
},
{
"ATId":12,
"TaskName":"Def",
"TaskId":14,
"TaskDetails":"FGH"
}
]
},
{
"CategoryID":3,
"CategoryName":"Web",
"Count":1,
"Tasks":[
{
"ATId":13,
"TaskName":"Def",
"TaskId":11,
"TaskDetails":"FGH"
}
]
},
{
"CategoryID":4,
"CategoryName":"Ios",
"Count":3,
"Tasks":[
{
"ATId":5,
"TaskName":"Def",
"TaskId":7,
"TaskDetails":"FGH"
},
{
"ATId":8,
"TaskName":"Def",
"TaskId":7,
"TaskDetails":"FGH"
},
{
"ATId":15,
"TaskName":"Def",
"TaskId":15,
"TaskDetails":"FGH"
}
]
}
],
"MessageStatus":"Success",
"MessageCode":1
}
]
here I have array of objects which have inner objects also. So I tried to do it and fetched all the data but this is not in a form as i receive from server. All I need is to get a pattern in which i correctly get it. My java code is here.
#Override
public void onResponse(String response) {
ParentItems entryObj = null;
JSONObject jsonObj = null;
JSONArray jsonArr = null;
try {
jsonArr = new JSONArray(response);
// JSONArray js=jsonObj.getJSONArray(response);
} catch (JSONException e) {
e.printStackTrace();
}
String code = null;
String Message = null;
try {
jsonObj = jsonArr.getJSONObject(0);
code = jsonObj.optString("MessageCode");
Message = jsonObj.optString("MessageStatus");
} catch (JSONException e) {
e.printStackTrace();
}
if (code.equals("1")) {
try {
Utilities.parentItemsList = new ArrayList < > ();
Utilities.childItemsList = new ArrayList < > ();
JSONArray array = jsonObj.getJSONArray("Response");
for (int i = 0; i < array.length(); i++) {
JSONObject entryJson = array.getJSONObject(i);
entryObj = new ParentItems();
entryObj.CategoryID = entryJson.getInt("CategoryID");
entryObj.mName = entryJson.getString("CategoryName");
entryObj.Count = entryJson.getInt("Count");
Utilities.parentItemsList.add(entryObj);
JSONArray taskArray = entryJson.optJSONArray("Tasks");
for (int a = 0; a < taskArray.length(); a++) {
ChildItems childItems = new ChildItems();
childItems.ATId = entryJson.optInt("ATId");
childItems.TaskName = entryJson.optString("TaskName");
childItems.TaskId = entryJson.optInt("TaskId");
childItems.TaskDetails = entryJson.optString("TaskDetails");
Utilities.childItemsList.add(childItems);
}
}
}
} else {
Toast.makeText(getContext(), "business ID is null", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Toast.makeText(getContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
}
i need my show show data in a expandable listview in a pattern that Catagory object will be parent item and task will be child item
In your ParentItems class. Add another attribute like this:
class ParentItems {
...Other attributes
List<ChildItems> childItems;
}
Then in your parser do something like this:
for (int i = 0; i < array.length(); i++) {
JSONObject entryJson = array.getJSONObject(i);
entryObj = new ParentItems();
entryObj.CategoryID = entryJson.getInt("CategoryID");
entryObj.mName = entryJson.getString("CategoryName");
entryObj.Count = entryJson.getInt("Count");
entryObj.childItems = new ArrayList<>();
JSONArray taskArray = entryJson.optJSONArray("Tasks");
for (int a = 0; a < taskArray.length(); a++) {
ChildItems childItems = new ChildItems();
childItems.ATId = entryJson.optInt("ATId");
childItems.TaskName = entryJson.optString("TaskName");
childItems.TaskId = entryJson.optInt("TaskId");
childItems.TaskDetails = entryJson.optString("TaskDetails");
Utilities.childItemsList.add(childItems);
entryObj.childItems.add(childItems);
}
Utilities.parentItemsList.add(entryObj);
}
This way you will get all the children tasks as part of the parent object.
PS. For tasks like this, it's easier to use a library like GSON.
You have to make Two Model Class For This like below.
public class ParentItems{
String CategoryID;
String CategoryName;
String Count;
ArrayList<ChildItems> ChildList;
// Here Constuctor and Getter Setter
}
public class ChildItems{
String ATId;
String TaskName;
String TaskId;
String TaskDetails;
// Here Constuctor and Getter Setter
}
you have to add data like this
for (int i = 0; i < array.length(); i++) {
JSONObject entryJson = array.getJSONObject(i);
entryObj = new ParentItems();
entryObj.CategoryID = entryJson.getInt("CategoryID");
entryObj.mName = entryJson.getString("CategoryName");
entryObj.Count = entryJson.getInt("Count");
Utilities.parentItemsList.add(entryObj);
JSONArray taskArray = entryJson.optJSONArray("Tasks");
if(taskArray.length()>0){
ArrayList<ChildItems> list=new ArrayList<>();
for (int a = 0; a < taskArray.length(); a++) {
ChildItems childItems = new ChildItems();
childItems.ATId = entryJson.optInt("ATId");
childItems.TaskName = entryJson.optString("TaskName");
childItems.TaskId = entryJson.optInt("TaskId");
childItems.TaskDetails = entryJson.optString("TaskDetails");
list.add(childItems);
}
entryObj.setChildList(list);
}
}
For More see this link its help you. Expandable Listview Example
I try to learn Loop through a JSON object in Java for loop this case.But My json loop first array(ident AFL274) and stop not loop next array(CQH8971)(in json data have 2 arrays)I call this function by button.
this for call for json
public String getInfo(String url) {
try {
String result = HttpGet(url);
JSONObject json = new JSONObject(result);
JSONObject val = json.getJSONObject("SearchResult");
JSONArray data = val.getJSONArray("aircraft");
for(int i=0;i<data.length();i++)
{
JSONObject data1 = data.getJSONObject(i);
String ans = data1.getString("ident");
}
} catch (JSONException e) {
e.printStackTrace();
}
return ans;
}
and this JSON:
{
"SearchResult": {
"next_offset": -1,
"aircraft": [
{
"ident": "AFL274",
"type": "B77W"
},
{
"ident": "CQH8971",
"type": "A320"
}
]
}
}
Try this,
public String[] getInfo(String url) {
try {
String result = HttpGet(url);
JSONObject json = new JSONObject(result);
JSONObject val = json.getJSONObject("SearchResult");
JSONArray data = val.getJSONArray("aircraft");
int arrayLength = data.length();
String[] strAryAns = new String[arrayLength];
for(int i=0;i<arrayLength;i++)
{
JSONObject data1 = data.getJSONObject(i);
strAryAns[i] = data1.getString("ident");
}
} catch (JSONException e) {
e.printStackTrace();
}
return strAryAns;
}
I was a novice at the json parsing from url. yesterday I've tried parsing json simple data. Now I am confused to form a json parsing the data as below. I still can not how to parse arrays and objects in json. Please help me guys ..
here my MainActivity.java
public class MainActivity extends ListActivity {
/** Called when the activity is first created. */
private static String URL = "http://api.themoviedb.org/3/genre/18/movies?api_key=d397dd2d354f088c6f0eb91c6b160bb0";
// tag
private static final String TAG_ID = "id";
private static final String TAG_page = "page";
private static final String TAG_results = "results";
private static final String TAG_backdrop_path = "backdrop_path";
private static final String TAG_id = "id";
private static final String TAG_original_title = "original_title";
private static final String TAG_release_date = "release_date";
private static final String TAG_poster_path = "poster_path";
private static final String TAG_title = "title";
private static final String TAG_vote_average = "vote_average";
private static final String TAG_vote_count = "vote_count";
private static final String TAG_total_pages = "total_pages";
private static final String TAG_total_results = "total_results";
JSONArray results = null;
JSONArray id = null;
JSONArray page = null;
JSONArray pages = null;
JSONArray tot_result = null;
// panggil class parser
JSONparser parser = new JSONparser();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ArrayList<HashMap<String, String>> genreList = new ArrayList<HashMap<String, String>>();
JSONObject json = parser.getJSONFromUrl(URL);
try {
id = json.getJSONArray(TAG_ID);
page = json.getJSONArray(TAG_page);
pages = json.getJSONArray(TAG_total_pages);
tot_result = json.getJSONArray(TAG_total_results);
for (int i = 0; i < results.length(); i++) {
JSONObject data = results.getJSONObject(i);
String backdrop = data.getString(TAG_backdrop_path);
String idd = data.getString(TAG_id).toString();
String ori = data.getString(TAG_original_title);
String releas = data.getString(TAG_release_date);
String poster = data.getString(TAG_poster_path);
String title = data.getString(TAG_title);
String average = data.getString(TAG_vote_average);
String count = data.getString(TAG_vote_count);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_backdrop_path, backdrop);
map.put(TAG_ID, idd);
map.put(TAG_original_title, ori);
map.put(TAG_release_date, releas);
map.put(TAG_poster_path, poster);
map.put(TAG_title, title);
map.put(TAG_vote_average, average);
map.put(TAG_vote_count, count);
genreList.add(map);
}
// Sort by
/*********************************
* Collections.sort(genreList, new Comparator<HashMap<String,
* String>>() {
*
* #Override public int compare(HashMap<String, String> a,
* HashMap<String, String> b) { return
* a.get(TAG_NAMA).compareTo(b.get(TAG_ID)); } });
******************************/
} catch (JSONException e) {
// TODO: handle exception
e.printStackTrace();
}
// tampilkan ke listadapter
ListAdapter adapter = new SimpleAdapter(this, genreList,
R.layout.list_data, new String[] { TAG_ID, TAG_page,
TAG_results, TAG_backdrop_path, TAG_id,
TAG_original_title, TAG_release_date, TAG_poster_path,
TAG_title, TAG_vote_average, TAG_vote_count,
TAG_total_pages, TAG_total_results }, new int[] {
R.id.id, R.id.page, R.id.result, R.id.backdrop_path,
R.id.idd, R.id.original_title, R.id.release_date,
R.id.poster_path, R.id.title, R.id.vote_average,
R.id.vote_count, R.id.total_pages, R.id.total_results });
setListAdapter(adapter);
}
}
here my JSONparser.java
public class JSONparser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
public JSONparser() {
}
public JSONObject getJSONFromUrl(String url) {
// http request
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
// TODO: handle exception
e.printStackTrace();
} catch (ClientProtocolException e) {
// TODO: handle exception
e.printStackTrace();
} catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "utf-8"), 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) {
// TODO: handle exception
Log.e("BUffer Error", "Error converting result" + e.toString());
}
// try parse string to a json
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
// TODO: handle exception
Log.e("Json parser", "error parsing data" + e.toString());
}
return jObj;
}
}
here my json data.
{
"id": 18,
"page": 1,
"results": [
{
"backdrop_path": "/6xKCYgH16UuwEGAyroLU6p8HLIn.jpg",
"id": 238,
"original_title": "The Godfather",
"release_date": "1972-03-24",
"poster_path": "/d4KNaTrltq6bpkFS01pYtyXa09m.jpg",
"title": "The Godfather",
"vote_average": 9.1999999999999993,
"vote_count": 125
},
{
"backdrop_path": "/ooqPNPS2WdBH7DgIF4em9e0nEld.jpg",
"id": 857,
"original_title": "Saving Private Ryan",
"release_date": "1998-07-24",
"poster_path": "/35CMz4t7PuUiQqt5h4u5nbrXZlF.jpg",
"title": "Saving Private Ryan",
"vote_average": 8.9000000000000004,
"vote_count": 83
}
],
"total_pages": 25,
"total_results": 499
}
JSONObject jObject_Main= new JSONObject(jsonstring);
//get json simple string
String id = jObject_Main.getString("id");
String page = jObject_Main.getString("page");
//get json Array and parse it.
JSONArray jsonArray = jObject_Main
.getJSONArray("results");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
String backdrop_path=jsonObject.getString("backdrop_path");
}
i hope its useful to you.
please change this in your code:
JSONObject json = parser.getJSONFromUrl(URL);
try {
id = json.getString("id");
page = json.getString("page");
tot_result = json.getJSONArray(results);
i hope you understand it.
Try this..
In your Global:
JSONArray results = null;
String id = null;
String page = null;
String pages = null;
String tot_result = null;
Inside Try Catch:
JSONObject json = parser.getJSONFromUrl(URL);
try {
id = json.getString(TAG_ID); // Changes here
page = json.getString(TAG_page); // Changes here
pages = json.getString(TAG_total_pages); // Changes here
tot_result = json.getString(TAG_total_results); // Changes here
results = json.getJSONArray(TAG_results); // Add this line
for (int i = 0; i < results.length(); i++) {
// Remaining all correct
}
EDIT:
new DownloadImageTask()
.execute("your image url");
}
and DownloadImageTask.class
private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
imageview.setImageBitmap(result);
}
}
Your JSON is JSONObject and it contains JSONArray
Parse Object
Parse Array
Example:
JSONObject jsonObj = new JSONObject(your_json_string);
String id = jsonObj.getString("id");
String page = jsonObj.getString("page"); // or getInt("page");
JSONArray results = jsonObj.getJSONArray("results");
int len = results.length(); // length or size, I don't remember, you can check it
for (int i = 0; i < len; i++) {
JSONObject obj = results.getJSONObject(i);
String backdropPath = obj.getString("backdrop_path");
// ...
}
you need add " results= json.getJSONArray(TAG_results);" below
"tot_result = json.getJSONArray(TAG_total_results);"