Android Adding Json Objects Into An Array
What I'm trying to do is create a JSONObject that contains an Array of other JSONObjects that are organized by a String? for example i want to create a JSONObject that contains an
Solution 1:
From what you say, you seem like trying to build a JSONArray out of some JSONObjects. This might help:
publicvoidwriteJSON() {
JSONObject user = newJSONObject();
JSONObject user2;
user2 = newJSONObject();
try {
user.put("dish_id", "1");
user.put("dish_custom", "2");
user.put("quantity", "2");
user.put("shared", "2");
user2.put("dish_id", "2");
user2.put("dish_custom", "2");
user2.put("quantity", "4");
user2.put("shared", "3");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
JSONArray notebookUsers = newJSONArray();
notebookUsers.put(user);
notebookUsers.put(user2);
System.out.println("the JSON ARRAY is"+notebookUsers);
Here 2 json objects are added to 1 JSONArray.
The output of the System.out.println will look something like this:
the JSON ARRAY is[{"shared":"2","dish_custom":"2","dish_id":"1","quantity":"2"},{"shared":"3","dish_custom":"2","dish_id":"2","quantity":"4"}]
And the string comparison you are using is not right.
if(matchDateTemp != matchDate1)
u cannot compare strings like that. u can use something like:
if(!(matchDateTemp.equals(matchDate1)))
Solution 2:
Best thing to parse JSON is to use GSON. What you have to do is
- Download GSON jar and add to your build path
- Now create classes that represent your JSON data structure
- Parse the data in just one line. GSON will do that for you
parsing in just one line
String json ="{\"code\":200,\"error\":null,\"data\":{\"fixtures\":[{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64933\",\"awayteam\":\"Team 4\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64935\",\"hometeam\":\"Team 6\",\"awayteam_id\":\"64937\",\"awayteam\":\"Team 8\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"}]}}";
MatchDetails matchDetails=new Gson().fromJson(json,MatchDetails.class);
System.out.println(matchDetails);
- Now the
MatchDetailsclass has all theFixtureListsyou need - access the fixture array via
matchDetails.getData().getFixtures();
the MatchDetails class
publicclassMatchDetails {
//"code":200,"error":nullprivateString code;
privateString error;
privateFixtures data;
/**
* Gets the code.
*
* @return <tt> the code.</tt>
*/publicStringgetCode() {
return code;
}
/**
* Sets the code.
*
* @param code <tt> the code to set.</tt>
*/publicvoidsetCode(String code) {
this.code = code;
}
/**
* Gets the error.
*
* @return <tt> the error.</tt>
*/publicStringgetError() {
return error;
}
/**
* Sets the error.
*
* @param error <tt> the error to set.</tt>
*/publicvoidsetError(String error) {
this.error = error;
}
/**
* Gets the data.
*
* @return <tt> the data.</tt>
*/publicFixturesgetData() {
return data;
}
/**
* Sets the data.
*
* @param data <tt> the data to set.</tt>
*/publicvoidsetData(Fixtures data) {
this.data = data;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/@OverridepublicStringtoString() {
return"MatchDetails [code=" + code + ", error=" + error + ", data="
+ data + "]";
}
}
EDIT
edited Fixtures class with sortFixtures function. Use it as below
String json ="{\"code\":200,\"error\":null,\"data\":{\"fixtures\":[{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-05-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64933\",\"awayteam\":\"Team 4\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-07-14\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64935\",\"hometeam\":\"Team 6\",\"awayteam_id\":\"64937\",\"awayteam\":\"Team 8\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-12-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"},{\"kickoff\":\"15:00:00\",\"matchdate\":\"2012-01-28\",\"homescore\":null,\"awayscore\":null,\"attendance\":null,\"homepens\":null,\"awaypens\":null,\"division_id\":\"5059\",\"division\":\"Testing 1\",\"comp\":\"LGE\",\"location\":null,\"fixture_note\":null,\"hometeam_id\":\"64930\",\"hometeam\":\"Team 1\",\"awayteam_id\":\"64931\",\"awayteam\":\"Team 2\"}]}}";
MatchDetails matchDetails=new Gson().fromJson(json,MatchDetails.class);
System.out.println(matchDetails);
System.out.println("Unsorted");
Fixtures fixturesObj = matchDetails.getData();
List<Fixture> fixtures = fixturesObj.getFixtures();
for (Fixture fixture : fixtures) {
System.out.println(fixture);
}
System.out.println("Sorted");
fixtures = fixturesObj.sortFixtures();
for (Fixture fixture : fixtures) {
System.out.println(fixture);
}
The Fixtures class
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
/**
* <br>
* <div style="width:600px;text-align:justify;">
*
* TODO: Class comment.
*
* </div>
* <br>
* @author Sunil Kumar E
*
*/publicclassFixtures {
private List<Fixture> fixtures;
/**
* Gets the fixtures.
*
* @return <tt> the fixtures.</tt>
*/public List<Fixture> getFixtures() {
return fixtures;
}
/**
* Sets the fixtures.
*
* @param fixtures <tt> the fixtures to set.</tt>
*/publicvoidsetFixtures(List<Fixture> fixtures) {
this.fixtures = fixtures;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/@Overridepublic String toString() {
return"Fixtures [fixtures=" + fixtures + "]";
}
public List<Fixture> sortFixtures()
{
Collections.sort(getFixtures(), newComparator<Fixture>() {
@Overridepublicintcompare(Fixture o1, Fixture o2) {
SimpleDateFormatdf1=newSimpleDateFormat("yyyy-MM-dd");
Datedate1=null;
Datedate2=null;
try {
date1 = df1 .parse(o1.getMatchdate());
date2 = df1 .parse(o2.getMatchdate());
} catch (ParseException e) {
e.printStackTrace();
}
if(date1==null || date2==null) return0;
if (date1.after(date2))
return1;
elseif(date1.before(date2))
return -1;
return0;
}
});
return getFixtures();
}
}
the Fixture class
publicclassFixture {
//"kickoff":"15:00:00","matchdate":"2012-07-14","homescore":null,// "awayscore":null,"attendance":null,"homepens":null,"awaypens":null,// "division_id":"5059","division":"Testing 1","comp":"LGE","location":null,// "fixture_note":null,"hometeam_id":"64930","hometeam":"Team 1",// "awayteam_id":"64933","awayteam":"Team 4"privateString kickoff;
privateString matchdate;
privateString homescore;
privateString awayscore;
privateString attendance;
privateString homepens;
privateString awaypens;
privateString division_id;
privateString division;
privateString comp;
privateString location;
privateString fixture_note;
privateString hometeam_id;
privateString hometeam;
privateString awayteam_id;
privateString awayteam;
/**
* Gets the kickoff.
*
* @return <tt> the kickoff.</tt>
*/publicStringgetKickoff() {
return kickoff;
}
/**
* Sets the kickoff.
*
* @param kickoff <tt> the kickoff to set.</tt>
*/publicvoidsetKickoff(String kickoff) {
this.kickoff = kickoff;
}
/**
* Gets the matchdate.
*
* @return <tt> the matchdate.</tt>
*/publicStringgetMatchdate() {
return matchdate;
}
/**
* Sets the matchdate.
*
* @param matchdate <tt> the matchdate to set.</tt>
*/publicvoidsetMatchdate(String matchdate) {
this.matchdate = matchdate;
}
/**
* Gets the homescore.
*
* @return <tt> the homescore.</tt>
*/publicStringgetHomescore() {
return homescore;
}
/**
* Sets the homescore.
*
* @param homescore <tt> the homescore to set.</tt>
*/publicvoidsetHomescore(String homescore) {
this.homescore = homescore;
}
/**
* Gets the awayscore.
*
* @return <tt> the awayscore.</tt>
*/publicStringgetAwayscore() {
return awayscore;
}
/**
* Sets the awayscore.
*
* @param awayscore <tt> the awayscore to set.</tt>
*/publicvoidsetAwayscore(String awayscore) {
this.awayscore = awayscore;
}
/**
* Gets the attendance.
*
* @return <tt> the attendance.</tt>
*/publicStringgetAttendance() {
return attendance;
}
/**
* Sets the attendance.
*
* @param attendance <tt> the attendance to set.</tt>
*/publicvoidsetAttendance(String attendance) {
this.attendance = attendance;
}
/**
* Gets the homepens.
*
* @return <tt> the homepens.</tt>
*/publicStringgetHomepens() {
return homepens;
}
/**
* Sets the homepens.
*
* @param homepens <tt> the homepens to set.</tt>
*/publicvoidsetHomepens(String homepens) {
this.homepens = homepens;
}
/**
* Gets the awaypens.
*
* @return <tt> the awaypens.</tt>
*/publicStringgetAwaypens() {
return awaypens;
}
/**
* Sets the awaypens.
*
* @param awaypens <tt> the awaypens to set.</tt>
*/publicvoidsetAwaypens(String awaypens) {
this.awaypens = awaypens;
}
/**
* Gets the division_id.
*
* @return <tt> the division_id.</tt>
*/publicStringgetDivision_id() {
return division_id;
}
/**
* Sets the division_id.
*
* @param division_id <tt> the division_id to set.</tt>
*/publicvoidsetDivision_id(String division_id) {
this.division_id = division_id;
}
/**
* Gets the division.
*
* @return <tt> the division.</tt>
*/publicStringgetDivision() {
return division;
}
/**
* Sets the division.
*
* @param division <tt> the division to set.</tt>
*/publicvoidsetDivision(String division) {
this.division = division;
}
/**
* Gets the comp.
*
* @return <tt> the comp.</tt>
*/publicStringgetComp() {
return comp;
}
/**
* Sets the comp.
*
* @param comp <tt> the comp to set.</tt>
*/publicvoidsetComp(String comp) {
this.comp = comp;
}
/**
* Gets the location.
*
* @return <tt> the location.</tt>
*/publicStringgetLocation() {
return location;
}
/**
* Sets the location.
*
* @param location <tt> the location to set.</tt>
*/publicvoidsetLocation(String location) {
this.location = location;
}
/**
* Gets the fixture_note.
*
* @return <tt> the fixture_note.</tt>
*/publicStringgetFixture_note() {
return fixture_note;
}
/**
* Sets the fixture_note.
*
* @param fixture_note <tt> the fixture_note to set.</tt>
*/publicvoidsetFixture_note(String fixture_note) {
this.fixture_note = fixture_note;
}
/**
* Gets the hometeam_id.
*
* @return <tt> the hometeam_id.</tt>
*/publicStringgetHometeam_id() {
return hometeam_id;
}
/**
* Sets the hometeam_id.
*
* @param hometeam_id <tt> the hometeam_id to set.</tt>
*/publicvoidsetHometeam_id(String hometeam_id) {
this.hometeam_id = hometeam_id;
}
/**
* Gets the hometeam.
*
* @return <tt> the hometeam.</tt>
*/publicStringgetHometeam() {
return hometeam;
}
/**
* Sets the hometeam.
*
* @param hometeam <tt> the hometeam to set.</tt>
*/publicvoidsetHometeam(String hometeam) {
this.hometeam = hometeam;
}
/**
* Gets the awayteam_id.
*
* @return <tt> the awayteam_id.</tt>
*/publicStringgetAwayteam_id() {
return awayteam_id;
}
/**
* Sets the awayteam_id.
*
* @param awayteam_id <tt> the awayteam_id to set.</tt>
*/publicvoidsetAwayteam_id(String awayteam_id) {
this.awayteam_id = awayteam_id;
}
/**
* Gets the awayteam.
*
* @return <tt> the awayteam.</tt>
*/publicStringgetAwayteam() {
return awayteam;
}
/**
* Sets the awayteam.
*
* @param awayteam <tt> the awayteam to set.</tt>
*/publicvoidsetAwayteam(String awayteam) {
this.awayteam = awayteam;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/@OverridepublicStringtoString() {
return"Fixture [kickoff=" + kickoff + ", matchdate=" + matchdate
+ ", homescore=" + homescore + ", awayscore=" + awayscore
+ ", attendance=" + attendance + ", homepens=" + homepens
+ ", awaypens=" + awaypens + ", division_id=" + division_id
+ ", division=" + division + ", comp=" + comp + ", location="
+ location + ", fixture_note=" + fixture_note
+ ", hometeam_id=" + hometeam_id + ", hometeam=" + hometeam
+ ", awayteam_id=" + awayteam_id + ", awayteam=" + awayteam
+ "]";
}
}
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