I have some data provided from an API for example this is the data, this is just a part of the data, but this is the part that I need to access
"logo_url_string": null,
"name": "google",
"category_image": {
"id": 24,
"cover_url": {
"url": "http://",
"icon_circle": {
"url": "http://"
}
The question is how can I access the "url" inside cover_url thats inside category_image?, and so far I've been able to access it from a Model class with setter and getters and an adapter but I don't know how can I access data that is nested with setters and getters I have to do it with setters and getters because I have an adapter class where I get all the data into de cardview and then I load it to a recycler that is in a fragment, please any help would be great Thank you!
my model is like this
Business.java
public class Business {
private String name, description, email, website, logo_url_string,cover_url_string;
public Business(){}
public class Images{
}
public Business(String name, String logo_url_string) {
this.name = name;
this.logo_url_string = logo_url_string;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getLogo_url_string() {
return logo_url_string;
}
public void setLogo_url_string(String logo_url_string) {
this.logo_url_string = logo_url_string;
}
And I access that data with and Adapter
Adapter.java
public class SearchHorizontalAdapter extends RecyclerView.Adapter<SearchHorizontalAdapter.ViewHolder> {
private ArrayList<Business> premiumsList;
Bitmap bitmap;
ImageView logo;
private Activity activity;
private int layoutMolde;
public SearchHorizontalAdapter(Activity activity, ArrayList<Business> list, int layout ) {
this.activity = activity;
this.premiumsList = list;
layoutMolde = layout;
}
#Override
public SearchHorizontalAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.search_high_layout, parent, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(SearchHorizontalAdapter.ViewHolder holder, int position) {
// holder.mTitle.setText(premiumsList.get(position));
holder.mTitle.setText(premiumsList.get(position).getName());
//holder.mImg.setImageURI(Uri.parse(premiumsList.get(position).getLogo_url_string()));
// if( Glide.with(this.activity).load(premiumsList.get(position).getLogo_url_string())==null) {
// Glide.with(this.activity).load(premiumsList.get(position).getCategory_image()).into(holder.mImg);
// }
Glide.with(this.activity).load(premiumsList.get(position).getLogo_url_string()).into(holder.mImg);
}
#Override
public int getItemCount() {
return premiumsList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public TextView mTitle;
public ImageView mImg;
public ViewHolder(View itemView) {
super(itemView);
mTitle = (TextView) itemView.findViewById(R.id.nom_business);
mImg= (ImageView) itemView.findViewById(R.id.img_business);
}
}
}
Try This,
try {
JSONObject objResult = new JSONObject(response);
String name = objResult.getString("name");
JSONObject category_image_obj=objResult.getJSONObject("category_image");
JSONObject cover_url_obj=category_image_obj.getJSONObject("cover_url");
String url = cover_url_obj.getString("url");
ArrayList premiumsList =new ArrayList<>();
premiumsList.add(new Business(name,url);
//call adapter here
} catch (JSONException e) {
e.printStackTrace();
}
IF your JSON response as below then you can parse to use below java code.
{
"contacts": [
{
"id": "c200",
"name": "Android Developer",
"email": "android.developer#gmail.com",
"address": "xx-xx-xxxx,x - street, x - country",
"gender" : "male",
"phone": {
"mobile": "+91 0000000000",
"home": "00 000000",
"office": "00 000000"
}
}
]
}
Java Code where you can parse your JSON. I hope you will get your answer.
#Override
protected Void jsonParsing(String jsonString) {
ArrayList<HashMap<String, String>> contactList = new ArrayList<HashMap<String, String>>();
// Store a json string in string variable
String jsonStr = jsonString;
Log.e(TAG, "Response from url: " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
JSONArray contacts = jsonObj.getJSONArray("contacts");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
String id = c.getString("id");
String name = c.getString("name");
String email = c.getString("email");
String address = c.getString("address");
String gender = c.getString("gender");
// Phone node is JSON Object
JSONObject phone = c.getJSONObject("phone");
String mobile = phone.getString("mobile");
String home = phone.getString("home");
String office = phone.getString("office");
// tmp hash map for single contact
HashMap<String, String> contact = new HashMap<>();
// adding each child node to HashMap key => value
contact.put("id", id);
contact.put("name", name);
contact.put("email", email);
contact.put("mobile", mobile);
// adding contact to contact list
contactList.add(contact);
}
} catch (final JSONException e) {
Log.e(TAG, "Json parsing error: " + e.getMessage());
}
} else {
Log.e(TAG, "Couldn't get json from server.");
}
}
For more detail about JSON Parsing please read this documentation. Other read this tutorial that how to parse the JSON.
First of all your json is wrong. If your json is like this,
{
"logo_url_string":null,
"name":"google",
"category_image":{
"id":"24",
"cover_url":{
"url":"http://",
"icon_circle":{
"url":"http://"
}
}
}
}
Try this
try {
JSONObject ai=new JSONObject(response);
JSONObject cat_img=ai.getJSONObject("category_image");
int id=cat_img.getInt("id"); //you can get id here
JSONObject cat_url=cat_img.getJSONObject("cover_url");
String url=cat_url.getString("url"); //you can get url from here
ArrayList<Business> premiumsList=new ArrayList<>();
premiumsList.add(new Business(cat_img.getString("name"),url)); //add it to aaray
} catch (JSONException e) {
e.printStackTrace();
}
Furthermore you can use this for making getters and setters for
nested json.
Related
I would like get countynames from the API and it returns nested objects;
"countries": {
"1": {
"name": "Cyprus",
"nameTurkish": "KKTC",
"nameNative": "Kıbrıs"
},
"2": {
"name": "Turkey",
"nameTurkish": "Türkiye",
"nameNative": "Türkiye"
},
"3": {
"name": "Monaco",
"nameTurkish": "Monako",
"nameNative": "Monaco"
},
and so on there are more than 200 countries and every county has its own "NUMBER_ID". In the end I want to list all "name" information. I think I should use JsonDeserializer but unfortunately I couldn't.
The entire JSON response can be read as a JSONObject that has multiple elements in it that you can iterate through and get different data.
String jsonResponse = ""; // Put the entire JSON response as a String
JSONObject root = new JSONObject(jsonResponse);
JSONArray rootArray = root.getJSONArray("countries"); // root element of the json respons
for (int i = 0; i < rootArray.length(); i++) {
JSONObject number = rootArray.getJSONObject(i);
String country = number.getString("name"); // Get country name
// Here you can add `country` into a List
}
UPDATE:
but there is no array in my JSON file, all of them are objects, every
country is in an object and every object has its own SerializedName
You can read it into JSONOjbect, and instead of using a JSONArray, you can iterate over the length of the JSONObject as below.
try {
JSONObject root = new JSONObject(jsonResponse);
JSONObject countries = root.getJSONObject("countries");
for (int i = 1; i <= countries.length(); i++) {
JSONObject number = countries.getJSONObject(String.valueOf(i));
String country = number.getString("name"); // Get country name
// Here you can add the `country` into a List
}
} catch (JSONException e) {
e.printStackTrace();
}
try using TypeToken.
Gson gson = new Gson();
List<Country> list = gson.fromJson(gson.toJson(what_you_get_data), new TypeToken<ArrayList<Country>>(){}.getType()); //Country is VO class what you make.
Here, you can see that your data looks like HashMap, so I just tried in that way and your data parsed successfully without a glitch:
Create Pojo's:
public class Countries {
private HashMap<String, Country> countries;
public HashMap<String, Country> getCountries() { return countries; }
public void setCountries(HashMap<String, Country> countries) { this.countries = countries; }
}
public class Country {
private String name;
private String nameTurkish;
private String nameNative;
public String getName() { return name; }
public void setName(String name) { this.name = name;}
public String getNameTurkish() { return nameTurkish; }
public void setNameTurkish(String nameTurkish) { this.nameTurkish = nameTurkish; }
public String getNameNative() { return nameNative; }
public void setNameNative(String nameNative) { this.nameNative = nameNative; }
}
Create a Gson Object and parse it:
Gson gson = new Gson();
// Countries Object
Type testC = new TypeToken<Countries>(){}.getType();
Countries ob = gson.fromJson(test, testC);
String newData = gson.toJson(ob.getCountries());
System.out.println("New Data: "+newData);
// All country in HashMap
Type country = new TypeToken<HashMap<String, Country>>(){}.getType();
HashMap<String, Country> countryHashMap = gson.fromJson(newData, country);
// Print All HashMap Country
for (Map.Entry<String, Country> set : countryHashMap.entrySet()) {
System.out.println("==> "+set.getKey() + " = " + set.getValue());
}
Output:
I/System.out: ==> 1 = Country{name='Cyprus', nameTurkish='KKTC', nameNative='Kıbrıs'}
I/System.out: ==> 2 = Country{name='Turkey', nameTurkish='Türkiye', nameNative='Türkiye'}
I/System.out: ==> 3 = Country{name='Monaco', nameTurkish='Monako', nameNative='Monaco'}
I am trying to parse json result without array name. Here is my json response:
[
{
"Id": 2293,
"Name": "Dr.",
"Active": true
},
{
"Id": 2305,
"Name": "Mr.",
"Active": true
},
{
"Id": 2315,
"Name": "Mrs.",
"Active": true
}
]
How to parse this using com.squareup.retrofit2:retrofit:2.1.0 library?
Create One Class Like,
class Test {
public List<TestValue> testValues;
}
Then call API,
Call<List<Test>> getTestData(#Field("xyz") String field1);
Call <List<Test>> call = service.getTestData("val");
call.enqueue(new Callback<List<Test>>() {
#Override
public void onResponse(Call<List<Test>> call, Response<List<Test>>
response) {
List<Test> rs = response.body();
}
#Override
public void onFailure(Call<List<Test>> call, Throwable t) {
}
});
User Your Model class, this is only for example purpose.
Normally you can parse as
String response = "[{"Id": 2293,"Name": "Dr.","Active": true},{"Id": 2305,"Name": "Mr.","Active": true},{"Id": 2315,"Name": "Mrs.","Active": true}]";
try {
JSONArray ja = new JSONArray(response);
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = ja.getJSONObject(i);
String id = jo.getString("Id");
String name = jo.getString("Name");
String active = jo.getString("Active");
}
} catch (JSONException e) {
e.printStackTrace();
}
If you want to parse it using Model Class then your Model Class will be for Retrofit
class Response
{
#SerializedName("Id")
#Expose
private String id;
#SerializedName("Name")
#Expose
private String name;
#SerializedName("Active")
#Expose
private String active;
}
and define Callback for retrofit like that
Call<List<Meeting>> getMeetings(#Field String data );
Hope this will help
I am new to android and I have the json in structure given below. How can it be parsed using json parsing or retrofit ?
{
"1,abcd":[{
"v_id":"1"
}]
"2,efgh":[{
"v_id":"2"
}]
}
Try this
try {
JSONObject jsonObject = new JSONObject("yourresponce");
JSONArray jsonarray = jsonObject.getJSONArray("1,abcd");
for(int i=0;i<jsonarray.length();i++){
JSONObject jsonObject1 = jsonarray.getJSONObject(i);
String v_id = jsonObject1.getString("v_id");
Log.d("seelogcat","values "+v_id);
}
JSONArray jsonarray2 = jsonObject.getJSONArray("2,efgh");
for(int i=0;i<jsonarray2.length();i++){
JSONObject jsonObject1 = jsonarray2.getJSONObject(i);
String v_id = jsonObject1.getString("v_id");
Log.d("seelogcat","values "+v_id);
}
}catch (Exception e){
}
Your json is Invalid Format: your Format should be below like this
{
"1,abcd": [{
"v_id": "1"
}], // here you have to add (,)
"2,efgh": [{
"v_id": "2"
}]
}
You can check here your Json is valid or not https://jsonlint.com/
To get key separate:
Iterator<?> keys = response.keys();
while( keys.hasNext() ) {
String key = (String)keys.next();
if ( jObject.get(key) instanceof JSONObject ) {
System.out.println(key); // here you need splint based on (,)
}
}
You have a comma (,) missing there. Check in jsonlint
{
"1,abcd": [{
"v_id": "1"
}],
"2,efgh": [{
"v_id": "2"
}]
}
Retrofit with Gson can do the rest of the work. The POJO for the response will be as follows:
public class Example {
#SerializedName("1,abcd")
#Expose
private List<_1Abcd> Abcd = null;
#SerializedName("2,efgh")
#Expose
private List<_2Efgh> Efgh = null;
public List<_1Abcd> get1Abcd() {
return Abcd;
}
public void set1Abcd(List<_1Abcd> Abcd) {
this.Abcd = Abcd;
}
public List<_2Efgh> get2Efgh() {
return Efgh;
}
public void set2Efgh(List<_2Efgh> Efgh) {
this.Efgh = Efgh;
}
}
And
public class _1Abcd {
#SerializedName("v_id")
#Expose
private String vId;
public String getVId() {
return vId;
}
public void setVId(String vId) {
this.vId = vId;
}
}
And
public class _2Efgh {
#SerializedName("v_id")
#Expose
private String vId;
public String getVId() {
return vId;
}
public void setVId(String vId) {
this.vId = vId;
}
}
This question already has answers here:
Parsing JSON object in android
(5 answers)
Closed 4 years ago.
I am trying to parse the following API data. I just have to use the start time, end time, location and event name inside my app. I have never parse this type of data before. Hitting the API URL and getting a response is working fine, I just need help in parsing.
I have tried these solutions but it didn't work.
parsing JSON 2 arrays (embedded) in Android
How to Parsing JSON (Two Dimensional) array Object in android?
How to parse JsonArray and JSON Object having two keys and values in android?
Ask Android parsing JSON multiple arrays.
JSON:
[
{
"end": {
"endDate": "2018-03-09",
"endTime": "03:00",
"_id": "5a901a7d9fee7d156d594b04"
},
"location": "Dance Tent",
"start": {
"startDate": "2018-03-09",
"startTime": "02:00",
"_id": "5a901a7d9fee7d156d594b05"
},
"announcementName": "Jumanji Dance Party"
}
]
Code:
final JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(DATA_URL, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int index = 0; index < response.length(); index++) {
try {
JSONObject jsonObject = response.getJSONObject(index);
String fullName = jsonObject.getString("startTime");
String about = jsonObject.getString("announcementName");
String artistType = jsonObject.getString("endTime");
String link = jsonObject.getString("location");
//String avatar = jsonObject.getString("avatar");
Annoucement_Day_One artistInfoGetter=new Annoucement_Day_One( fullName,about, artistType, link );
annoucementDayOneList.add(artistInfoGetter);
wednesdayAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.i("ERRROR RES: ", error.toString());
myInstance.dismiss();
}
});
requestQueue.add(jsonArrayRequest);
Try this
try {
JSONArray jsonArray= new JSONArray(response);
for (int i=0;i<jsonArray.length();i++){
JSONObject object=jsonArray.getJSONObject(i);
String location=object.getString("location");
String announcementName=object.getString("announcementName");
JSONObject end=object.getJSONObject("end");
String endDate=end.getString("endDate");
String endTime=end.getString("endTime");
String id=end.getString("_id");
JSONObject start=object.getJSONObject("start");
String startDate=start.getString("startDate");
String startTime=start.getString("startTime");
String start_id=start.getString("_id");
}
} catch (JSONException e) {
e.printStackTrace();
}
Try this ,
for (int index = 0; index < response.length(); index++) {
try {
JSONObject jsonObject = response.getJSONObject(index);
JSONObject startJson = jsonObject.getJSONObject("start");
String startTime = startJson.getString("startTime");
JSONObject endJson = jsonObject.getJSONObject("end");
String endTime = endJson.getString("endTime");
String announcementName = jsonObject.getString("announcementName");
String location = jsonObject.getString("location");
} catch (JSONException e) {
e.printStackTrace();
}
}
ArrayList<Holder1> arrayList = new ArrayList<>();
try {
JSONArray jsonArray = new JSONArray(response);
for(int index = 0 ;index < jsonArray.length() ; index++){
JSONObject jsonObject1 = jsonArray.getJSONObject(index);
//make a holder for end, location, start,announcementName
Holder1 holder = new Holder1();
holder.setLocation(jsonObject1.optString("location"));
holder.setAnnouncementName(jsonObject1.optString("announcementName"));
//------------
JSONObject jsonObjectEnd =jsonObject1.getJSONObject("end");
holder.setEndDate(jsonObjectEnd.optString("endDate"));
holder.setEndTime(jsonObjectEnd.optString("endTime"));
holder.setEndID(jsonObjectEnd.optString("_id"));
//--------------
JSONObject jsonObjectStart =jsonObject1.getJSONObject("start");
holder.setStartDate(jsonObjectStart.optString("startDate"));
holder.setStartTime(jsonObjectStart.optString("startTime"));
holder.setStartID(jsonObjectStart.optString("_id"));
//--------------
arrayList.add(holder);
}
} catch (JSONException e) {
e.printStackTrace();
}
Accept the answer. If you like the way i have written.
You can use the GSON library by google.
add the dependency in build.gradle.
compile 'com.google.code.gson:gson:2.8.0'
First, you have to create the model class for your JSON response. this will help you to create the model class.
public class MyPojo
{
private Start start;
private String location;
private String announcementName;
private End end;
public Start getStart ()
{
return start;
}
public String getLocation ()
{
return location;
}
public String getAnnouncementName ()
{
return announcementName;
}
public End getEnd ()
{
return end;
}
}
--------------Start.Java------------
public class Start
{
private String startTime;
private String startDate;
private String _id;
public String getStartTime ()
{
return startTime;
}
public String getStartDate ()
{
return startDate;
}
public String get_id ()
{
return _id;
}
}
------------End.Java-------------------
public class End
{
private String _id;
private String endDate;
private String endTime;
public String get_id ()
{
return _id;
}
public String getEndDate ()
{
return endDate;
}
public String getEndTime ()
{
return endTime;
}
}
Now in your onResponse method
MyPojo respnse = new Gson().fromJson(response.toString(), MyPojo.class);
you can access any method from response.Ex. response.getEnd().getEnd_date()
I am working on an app which I need to parse jsonarray. I have my json values in base64 and I need to decode strings to retrive data with decode String. Here is my code :
private class DecodeData extends AsyncTask<String, Void, String> {
#SuppressWarnings("unchecked")
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
String response = params[0];
String keys = "";
String value = "";
String b64Value = "";
LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
try {
JSONArray array = new JSONArray(response);
for (int i = 0; i < array.length(); i++) {
Iterator<String> it = array.getJSONObject(i).keys();
while (it.hasNext()) {
keys = (String)it.next();
value = (String)array.getJSONObject(i).get(keys);
b64Value = Base64.DecodeStrToStr(value);
Log.i("ASYNC TASK VALUE", b64Value);
map.put(keys, b64Value);
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return map.toString();
}
I get only the first JSONObject and I need to get all JSONObject with all values. I can't use getString(name) because my json can have others keys. What am I doing wrong and why am I getting only the first JSONObject and not the others ?
json type :
[
{
"value": "ZG1WdVpISmxaR2tnTWpVZ1lYWnlhV3c4WW5JZ0x6NEtSMVZaUVU1QklFRk1UQ0JUVkVGUw==",
"date_create": "MjAxNC0wNC0yNSAwMDowMDowMA==",
"picture": "aHR0cDovL3dzLmFwcHMtcGFuZWwubmV0L2RhdGEvcGFsYWNpby8yNWF2cmlsLmpwZw==",
"link": "",
"title": "MjVhdnJpbA==",
"media": "",
"id_news": "MTA5NjI0",
"id_reference": "",
"type": "",
"id_categorie": "",
"date_event": "MjAxNC0wNC0yNSAwMDowMDowMA==",
"chapo": "",
"auteur": "",
"value_out": "dmVuZHJlZGkgMjUgYXZyaWxHVVlBTkEgQUxMIFNUQVI="
},
{
"value": "YzJGdFpXUnBJREkySUdGMmNtbHNQR0p5SUM4K0NrMUJVbFpKVGlCaGJtUWdSbEpKUlU1RVV3PT0=",
"date_create": "MjAxNC0wNC0yNiAwMDowMDowMA==",
"picture": "aHR0cDovL3dzLmFwcHMtcGFuZWwubmV0L2RhdGEvcGFsYWNpby8yNmF2cmlsMi5qcGc=",
"link": "",
"title": "MjZhdnJpbA==",
"media": "",
"id_news": "MTA5NjMx",
"id_reference": "",
"type": "",
"id_categorie": "",
"date_event": "MjAxNC0wNC0yNiAwMDowMDowMA==",
"chapo": "",
"auteur": "",
"value_out": "c2FtZWRpIDI2IGF2cmlsTUFSVklOIGFuZCBGUklFTkRT"
},
Here is what i am getting with my code :
RESPONSE :{date_create=MjAxNC0wNS0yNSAwMDowMDowMA==, link=, date_event=MjAxNC0wNS0yNSAwMDowMDowMA==, type=, value_out=ZGltYW5jaGUgMjUgbWFpRE9MQSBNSVpJSyBlbiBjb25jZXJ0, picture=aHR0cDovL3dzLmFwcHMtcGFuZWwubmV0L2RhdGEvcGFsYWNpby8yNW1haS5qcGc=, title=MjUgbWFp, id_reference=, chapo=, value=WkdsdFlXNWphR1VnTWpVZ2JXRnBQR0p5SUM4K0NqeGljaUF2UGdwRVQweEJJRTFKV2tsTElHVnVJR052Ym1ObGNuUT0=, id_news=MTA5NjM0, media=, auteur=, id_categorie=}
Anybody has an idea of how I can do ?
Thank you
Problem:
You are putting all results in the same Map. Each object in the JSONArray will erase the values of previous objects because the keys are the same.
In the end, you get only one value for each key.
Solution:
You need one map per JSON object in the array. You could use a list (or array) of Maps, for instance. Here is some code:
ArrayList<HashMap<String, String>> decodedArray = new ArrayList<>();
JSONArray array = new JSONArray(response);
for (int i = 0; i < array.length(); i++) {
HashMap<String, String> map = new HashMap<>();
Iterator<String> it = array.getJSONObject(i).keys();
while (it.hasNext()) {
keys = (String) it.next();
value = (String) array.getJSONObject(i).get(keys);
b64Value = Base64.DecodeStrToStr(value);
Log.i("ASYNC TASK VALUE", b64Value);
map.put(keys, b64Value);
}
decodedArray.add(map);
}
Add you json value into model object I hope it would be helpful for you.
public class A {
private Vector<B> b = new Vector<B>();
public Vector<B> getB() {
return b;
}
public void addB(B b) {
this.b.add(b);
}
public class B{
private String value;
private String picture;
//add your paramatere here like link, title etc
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public String getPicture() {
return picture;
}
public void setPicture(String picture) {
this.picture = picture;
}
}
}
Then after parsing value set into bean object like that.
A a = new A();
for (int i = 0; i < jsonArray.length(); i++) {
B b= a.new B();
JSONObject jsonObject= (JSONObject)jsonArray.get(i);
String value= jsonObject.getString("value");
jsonObject.getString("picture");
// get all value from json object set into b object
a.addB(b);
}