skipping null values when parsing json in android? - android

I am parsing json object from facebook.
In my facebook json object, there are string keys inside key array "data".
My Code as follows,
"data": [
{
"id": "100001211447563_300696056647440",
"from": {
"name": "Seho Lee",
"id": "100001211447563"
},
"story": "Seho Lee is now using Facebook in English (US).",
"story_tags": {
"0": [
{
"id": 100001211447563,
"name": "Seho Lee",
"offset": 0,
"length": 8
}
]
},
"type": "status",
"created_time": "2012-01-19T09:13:04+0000",
"updated_time": "2012-01-19T09:13:04+0000",
"comments": {
"count": 0
}
},
{
"id": "100001211447563_298802933503419",
"from": {
"name": "Seho Lee",
"id": "100001211447563"
},
"story": "Seho Lee started using Graph API Explorer.",
"story_tags": {
"23": [
{
"id": 145634995501895,
"name": "Graph API Explorer",
"offset": 23,
"length": 18
}
],
"0": [
{
"id": 100001211447563,
"name": "Seho Lee",
"offset": 0,
"length": 8
}
]
},
"picture": "http://photos-a.ak.fbcdn.net/photos-ak-snc1/v43/11/145634995501895/app_1_145634995501895_4870.gif",
"link": "http://developers.facebook.com/tools/explorer/",
"caption": "A tool to help you browse objects within the Facebook Graph API, manage permissions, obtain access tokens and generally learn how it all works.",
"actions": [
{
"name": "Comment",
"link": "http://www.facebook.com/100001211447563/posts/298802933503419"
},
{
"name": "Like",
"link": "http://www.facebook.com/100001211447563/posts/298802933503419"
}
],
"type": "link",
"created_time": "2012-01-16T09:47:57+0000",
"updated_time": "2012-01-16T09:47:57+0000",
"comments": {
"count": 0
}
},
{
"id": "100001211447563_298789650171414",
"from": {
"name": "Seho Lee",
"id": "100001211447563"
},
"story": "Seho Lee likes myFBCovers.com.",
"story_tags": {
"15": [
{
"id": 160901873998019,
"name": "myFBCovers.com",
"offset": 15,
"length": 14
}
],
"0": [
{
"id": 100001211447563,
"name": "Seho Lee",
"offset": 0,
"length": 8
}
]
},
"type": "status",
"created_time": "2012-01-16T08:57:33+0000",
"updated_time": "2012-01-16T08:57:33+0000",
"comments": {
"count": 0
}
}
when I parsing this json object, String key "likes" is sometimes exist and sometimes do not exist in "data" jsonArray. So when I parsing JsonString "likes", sometimes I gets JSONException since I am parsing null value. Is there any way to skipping "null" json value?
Please help me regarding this.


if try catch it, next processes will be skipped.
you can check by isNull("name") method.


Edit: this is to check key. since you mentioned key exists sometimes. did you mean the value?
use JSONObjects method has(key)
data = (JSONObject) new JSONTokener(jsonObjRecv.toString()).nextValue();
if data.has("like"){
...
}
to check whether the value is null check with isNull("name")

Related

Retrofit Android API Get without nested array

This is my first android project (I'm a php developer) but i'm struggling to see how to take this example which uses a nested structure under data for the json array whereas my data is not double nested like this example.
The excample code I am trying to modify is from here https://github.com/datanapps/RetrofitKotlin and the key differences in the json are todo with the nesting.
Original
{
"page": 1,
"per_page": 6,
"total": 12,
"total_pages": 2,
"data": [
{
"id": 1,
"email": "george.bluth#reqres.in",
"first_name": "George",
"last_name": "Bluth",
"avatar": "https://reqres.in/img/faces/1-image.jpg"
},
{
"id": 2,
"email": "james.smith#reqres.in",
"first_name": "James",
"last_name": "Smith",
"avatar": "https://reqres.in/img/faces/1-image.jpg"
}
]
}
whereas mine is simply
[
{
"_id": "62f4cb4e131d9d00046a1b9c",
"device": "AndroidAPS-DexcomG6",
"date": 1660209967000,
"dateString": "2022-08-11T09:26:07.000Z",
"isValid": true,
"sgv": 133,
"direction": "Flat",
"type": "sgv",
"created_at": "2022-08-11T09:26:38.326Z",
"mills": 1660209998326
},
{
"_id": "62f4cb4e131d9d00046a1b9c",
"device": "AndroidAPS-DexcomG6",
"date": 1660209967000,
"dateString": "2022-08-11T09:26:07.000Z",
"isValid": true,
"sgv": 133,
"direction": "Flat",
"type": "sgv",
"created_at": "2022-08-11T09:26:38.326Z",
"mills": 1660209998326
}
]
Specifically I want to query the SGV values, direction and date
Thanks

You "return type" of "method" in Retrofit "interface" will be:
List<MyModel>
And MyModel:
data class MyModel(val _id:String, val device:String,...)

How to pass object of json to other activity

I have this json
{
"results": [{
"gender": "male",
"name": {
"title": "mr",
"first": "isidro",
"last": "nogueira"
},
"location": {
"street": "3663 rua amazonas ",
"city": "mesquita",
"state": "rio de janeiro",
"postcode": 27744
},
"email": "isidro.nogueira#example.com",
"login": {
"username": "orangegoose315",
"password": "redalert",
"salt": "Dd3U7U03",
"md5": "325f1e8753222facba6ee63a5e2451de",
"sha1": "a63a0c544a956e235330b0ed76d11d3ad17c7979",
"sha256": "ddf18ffff89684617b2c7b8c5c175b9570cb6005916d9b4f3face802bd4f13a1"
},
"dob": "1967-04-23 04:58:32",
"registered": "2016-05-08 01:56:44",
"phone": "(11) 8368-8583",
"cell": "(17) 9743-3074",
"id": {
"name": "",
"value": null
},
"picture": {
"large": "https://randomuser.me/api/portraits/men/57.jpg",
"medium": "https://randomuser.me/api/portraits/med/men/57.jpg",
"thumbnail": "https://randomuser.me/api/portraits/thumb/men/57.jpg"
},
"nat": "BR"
}],
"info": {
"seed": "5b3dff5c25caaf7f",
"results": 1,
"page": 1,
"version": "1.1"
}
}
This data is of just one user. I have 50 of them.
I am still in learning stage and what I have done is that I have successfully listed all user in an activity. Now what I want to do is when I click on a user it should show it's related details in next activity...
List Users->Select Users->Show selected user details
I still don't know how to send data to other activity and display it.

converting json response (from wordpress REST API version-2 Beta) to json array in Android Studio

Below is the json response from wordpress:
[{
"id": 711,
"date": "2015-09-28T01:00:03",
"date_gmt": "2015-09-27T19:30:03",
"guid": {
"rendered": "http:\/\/www.realcake.in\/?p=711"
},
"modified": "2015-09-28T01:51:52",
"modified_gmt": "2015-09-27T20:21:52",
"slug": "why-only-and-only-realcake",
"type": "post",
"link": "http:\/\/www.realcake.in\/why-only-and-only-realcake\/",
"title": {
"rendered": "Why only and only RealCake"
},
"content": {
"rendered": "<p><img class=\"size-full wp-image-725 aligncenter\" src=\"http:\/\/www.realcake.in\/wp-content\/uploads\/2015\/09\/ONLY-ONLY-REAL-INGREDIENTS-FOR-REALCAKE..jpg\" alt=\"REALCAKE BAKERY IN GURGAON R.\" width=\"940\" height=\"225\" srcset=\"http:\/\/www.realcake.in\/wp-content\/uploads\/2015\/09\/ONLY-ONLY-REAL-INGREDIENTS-FOR-REALCAKE..jpg 940w,
},
"excerpt": {
"rendered": ""
},
"author": 4,
"featured_media": 0,
"comment_status": "open",
"ping_status": "open",
"sticky": false,
"format": "standard",
"categories": [37, 35, 1],
"tags": [],
"_links": {
"self": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/posts\/711"
}],
"collection": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/posts"
}],
"about": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/types\/post"
}],
"author": [{
"embeddable": true,
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/users\/4"
}]
}
}, {
"id": 420,
"date": "2015-01-01T18:00:07",
"date_gmt": "2015-01-01T12:30:07",
"guid": {
"rendered": "http:\/\/www.realcake.in\/?p=420"
},
"modified": "2015-08-04T23:29:55",
"modified_gmt": "2015-08-04T17:59:55",
"slug": "why-choose-muffins-cakes-realcake",
"type": "post",
"link": "http:\/\/www.realcake.in\/why-choose-muffins-cakes-realcake\/",
"title": {
"rendered": "Why Choose Muffins & Cakes from RealCake Bakery?"
},
"content": {
"rendered": "<div id=\"attachment_423\" style=\"width: 559px\" class=\"wp-caption aligncenter\"><img class=\" wp-image-423\" src=\"http:\/\/www.realcake.in\/wp-content\/uploads\/2015\/03\/Regular-muffins-e1425386051181-300x148.png\"
},
"excerpt": {
"rendered": "<p>. Feel free to write to us or call us if […]<\/p>\n"
},
"author": 4,
"featured_media": 0,
"comment_status": "open",
"ping_status": "open",
"sticky": false,
"format": "standard",
"categories": [35],
"tags": [44, 41, 46, 40, 45, 42, 38, 39, 43],
"_links": {
"self": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/posts\/420"
}],
"collection": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/posts"
}],
"about": [{
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/types\/post"
}],
"author": [{
"embeddable": true,
"href": "http:\/\/www.realcake.in\/wp-json\/wp\/v2\/users\/4"
}]
}
}]
==>> I am using the code below to get JSONArray:
Response response = client.newCall(request).execute();
//here I am getting the json response(mentioned above) from wordpress rest api
String json = response.body().string();
JSONObject object = new JSONObject(json);
//Below code is giving me null array as I dont have "Array name" in my json response.
JSONArray array = object.optJSONArray("Name of Array in json response");
Please help me get JSONArray out of json response.

Looking at your JSON string, it seems that the entire response body is a JSON-Array, so you can simply parse it directly into a instance of JSONArray.
This is how you can do it:
//get your JSON body-string like you do
String json = response.body().string();
//parse it directly into JSONArray
JSONArray array = new JSONArray(json);
//do whatever you want with the array...
I hope this helps you.

missing fields in profile from LinkedIn Android SDK

I'm using the LinkedIn Android SDK downloaded from here (version 1.1.4) and have set up authentication already like this:
liSessionManager.init(activity,
Scope.build(Scope.R_BASICPROFILE, Scope.R_EMAILADDRESS), authListener);
and everything works fine, but when I want to get the profile data, returned json is missing fields like summary in job positions and general summary for the given profile.
The request is made like this:
apiHelper.getRequest(activity, GET_LINKED_IN_PROFILE_URL, apiListener);
where GET_LINKED_IN_PROFILE_URL is https://api.linkedin.com/v1/people/~:(id,first-name,last-name,email-address,formatted-name,headline,location,industry,current-share,num-connections,num-connections-capped,summary,specialties,positions,phone-numbers,public-profile-url,picture-url,picture-urls::(original))?format=json.
The response is as follows:
{
"currentShare": {
"author": {
"firstName": "Name",
"id": "***",
"lastName": "Surname"
},
"comment": "I've made my LinkedIn profile visual! Check it out and get yours!",
"content": {
"description": "some descr",
"eyebrowUrl": "http://url.com/me/7827748?m_in&user_id=***",
"resolvedUrl": "http://url.com/me/7827748?m_in&user_id=***",
"shortenedUrl": "http://linkedin.in/url",
"submittedImageUrl": "https://www.url.com/logo-share.png",
"submittedUrl": "https://www.url.com/me/***?m_in&user_id=***",
"thumbnailUrl": "https://media.licdn.com/media-proxy/ext?w=80&h=100&f=&hash=usON2E%2F4FqEGtIT5dsadsaaD&ora=1%2CaFBCTXdkRmpGL2lvQUFBPQ%2CxAVta5g-0R65wFUbzx0776dsaulz-50hKCpDZEXX8HmW3uZHfgasdapuGJ-n08ARIZ3Bex1svPLf5AmX_Us3r",
"title": "title"
},
"id": "s1291360434",
"source": {
"application": {"name": "app"},
"serviceProvider": {"name": "LINKEDIN"}
},
"timestamp": 1346884888000,
"visibility": {"code": "anyone"}
},
"emailAddress": "***#gmail.com",
"firstName": "Name",
"formattedName": "Name Surname",
"headline": "Job position",
"id": "***",
"industry": "Computer Software",
"lastName": "Surname",
"location": {
"country": {"code": "pl"},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"numConnections": 229,
"numConnectionsCapped": false,
"pictureUrl": "https://media.licdn.com/mpr/mprx/photourl",
"pictureUrls": {
"_total": 1,
"values": ["https://media.licdn.com/mpr/mprx/photourl"]
},
"positions": {
"_total": 1,
"values": [{
"company": {
"id": 2795963,
"industry": "Information Technology & Services",
"name": "Company 1",
"size": "11-50",
"type": "Privately Held"
},
"id": ***,
"isCurrent": true,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"startDate": {
"month": 1,
"year": 2016
},
"title": "Job position"
}]
},
"publicProfileUrl": "https://www.linkedin.com/in/username/41219"
}
When I use the same url in the API Console at https://apigee.com/console/linkedin, the response looks like this:
{
"currentShare": {
"author": {
"firstName": "Name",
"id": "***",
"lastName": "Surname"
},
"comment": "I've made my LinkedIn profile visual! Check it out and get yours!",
"content": {
"description": "some descr",
"eyebrowUrl": "http://url.com/me/7827748?m_in&user_id=***",
"resolvedUrl": "http://url.com/me/7827748?m_in&user_id=***",
"shortenedUrl": "http://linkedin.com/shortened",
"submittedImageUrl": "https://www.url.com/logo-share.png",
"submittedUrl": "https://www.url.com/me/***?m_in&user_id=***",
"thumbnailUrl": "https://media.licdn.com/media-proxy/ext?w=80&h=100&f=&hash=usON2E%2F4FqEGtIT5dsadsaaD&ora=1%2CaFBCTXdkRmpGL2lvQUFBPQ%2CxAVta5g-0R65wFUbzx0776dsaulz-50hKCpDZEXX8HmW3uZHfgasdapuGJ-n08ARIZ3Bex1svPLf5AmX_Us3r",
"title": "title"
},
"id": "s1291360434",
"source": {
"application": {
"name": "app"
},
"serviceProvider": {
"name": "LINKEDIN"
}
},
"timestamp": 1346884888000,
"visibility": {
"code": "anyone"
}
},
"emailAddress": "***#gmail.com",
"firstName": "Name",
"formattedName": "Name Surname",
"headline": "Job position",
"id": "***",
"industry": "Computer Software",
"lastName": "Surname",
"location": {
"country": {
"code": "pl"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"numConnections": 229,
"numConnectionsCapped": false,
"pictureUrl": "https://media.licdn.com/mpr/mprx/photourl",
"pictureUrls": {
"_total": 1,
"values": [
"https://media.licdn.com/mpr/mprx/photourl"
]
},
"positions": {
"_total": 1,
"values": [
{
"company": {
"id": 2795963,
"industry": "Information Technology & Services",
"name": "Company 1",
"size": "11-50",
"type": "Privately Held"
},
"id": 22222,
"isCurrent": true,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"startDate": {
"month": 1,
"year": 2016
},
"title": "Job position"
},
{
"company": {
"id": 611639,
"industry": "Internet",
"name": "Company 2",
"size": "51-200",
"type": "Privately Held"
},
"endDate": {
"month": 2,
"year": 2016
},
"id": 1111,
"isCurrent": false,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"startDate": {
"month": 4,
"year": 2015
},
"summary": "Summary of job",
"title": "Senior Android Developer"
},
{
"company": {
"id": 1111,
"industry": "Internet",
"name": "Company 2",
"size": "51-200",
"type": "Privately Held"
},
"endDate": {
"month": 3,
"year": 2015
},
"id": 111111,
"isCurrent": false,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"startDate": {
"month": 4,
"year": 2014
},
"summary": "short summary",
"title": "Android/iOS Developer"
},
{
"company": {
"id": 11111,
"industry": "Internet",
"name": "Company 2",
"size": "51-200",
"type": "Privately Held"
},
"endDate": {
"month": 3,
"year": 2014
},
"id": 1111111,
"isCurrent": false,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Wroclaw, Lower Silesian District, Poland"
},
"startDate": {
"month": 2,
"year": 2013
},
"summary": "android applications developer.\ncross-platform mobile application testing (iOS, Windows 8)",
"title": "Junior Android Developer"
},
{
"company": {
"id": 3333,
"industry": "Information Technology & Services",
"name": "Company 3",
"size": "201-500",
"type": "Privately Held"
},
"endDate": {
"month": 11,
"year": 2011
},
"id": 3333333,
"isCurrent": false,
"location": {
"country": {
"code": "pl",
"name": "Poland"
},
"name": "Warsaw, Masovian District, Poland"
},
"startDate": {
"month": 7,
"year": 2011
},
"summary": "Intern ",
"title": "Internship"
}
]
},
"publicProfileUrl": "https://www.linkedin.com/in/username/41219"
}
Which shows that the Android SDK's response is missing some job positions and a summary for a profile.

It turned out LinkedIn is not returning fields that have no value. If you don't setup a summary in your profile, then there won't be a field named summary in the response. (Don't expect anything like "summary" : null)
Additionally only first position is returned for a given profile while using r_basicprofile scope. It's confusing since this one profile is returned in the positions array.
based on https://developer.linkedin.com/docs/fields/basic-profile :
Positions - An object representing the member's current position.
See Position Fields for a description of the fields available within this object.
The reason why the API Console's response was having all job positions is because it asked for r_fullprofile scope while authenticating

api - get feed "with_tags"

I have a problem getting my feeds.
1- I (emiliano nunez) post a photo with my cellphone (android) and add (With) "hall 9000".
I (hall 9000) get feeds by graph api:
https://graph.facebook.com/me/feed?access_token=..........
{
"from": {
"name": "Emiliano Gustavo Nu\u00f1ez",
"id": "100001535156886"
},
"type": "photo",
"picture": "http://photos-a.ak.fbcdn.net/hphotos-ak-snc7/386161_265139050213931_100001535156886_723669_443588989_s.jpg",
"message": "Ibrick test",
"with_tags": {
"data": [
{
"name": "Hal Nuevemil",
"id": "100003200111123"
}
]
},
"to": {
"data": [
{
"name": "Hal Nuevemil",
"id": "100003200111123"
}
]
},
"id": "100001535156886_265139076880595",
"created_time": "2011-12-29T18:43:49+0000"
}
I can see "with_tags" section with hall 9000 :)
Until now perfect..
2 - then i repeat the procedure with other photo ... and get:
{
"from": {
"name": "Emiliano Gustavo Nu\u00f1ez",
"id": "100001535156886"
},
"type": "photo",
"picture": "http://photos-e.ak.fbcdn.net/hphotos-ak-snc7/396071_265171810210655_100001535156886_723868_1962904772_s.jpg",
"id": "100001535156886_265171840210652",
"created_time": "2011-12-29T19:44:56+0000"
},
I don't see "with_tags" section.
:(
For more details:
http://i.stack.imgur.com/N4knz.png
http://i.stack.imgur.com/uPqvh.png

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