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All my spinners are connected with each other, they are not independent, I would like to show options in spinner2 and spinner3 based on the selection in spinner1 (I mean based on category chosen by user in spinner1)
In onCreate I am populating data into Spinners, but in spinner2 and spinner3 I am getting data that belongs to CategoryB whereas they must populate with CategoryA data only.
So where is my mistake? Here is my JSON Parsing code:
categoryArrayList = new ArrayList<Category>();
cArrayList = new ArrayList<String>();
...................................
// Array Level 1 --- START
JSONArray jarray = jsono.getJSONArray("categories");
for (int i = 0; i < jarray.length(); i++) {
JSONObject object = jarray.getJSONObject(i);
Category language = new Category();
language.setName(object.getString("category_name"));
Log.d("category_name::-", object.getString("category_name"));
language.setTypeArrayList(typeArrayList);
categoryArrayList.add(language);
cArrayList.add(categoryArrayList.get(i).getName());
// Array Level 1 --- END
// Array Level 2 --- START
JSONArray jsarray = object.getJSONArray("types");
typeArrayList = new ArrayList<Type>();
tArrayList = new ArrayList<String>();
for (int j = 0; j < jsarray.length(); j++) {
JSONObject jjobject = jsarray.getJSONObject(j);
Type genre = new Type();
genre.setName(jjobject.getString("type_name"));
Log.d("type_name::-", jjobject.getString("type_name"));
genre.setServiceArrayList(serviceArrayList);
typeArrayList.add(genre);
tArrayList.add(typeArrayList.get(j).getName());
// Array Level 2 --- END
// Array Level 3 --- START
JSONArray jsonarray = jjobject.getJSONArray("services");
serviceArrayList = new ArrayList<Service>();
sArrayList = new ArrayList<String>();
for (int k = 0; k < jsonarray.length(); k++) {
JSONObject jjjobject = jsonarray.getJSONObject(k);
Service movie = new Service();
movie.setName(jjjobject.getString("service_name"));
Log.d("service_name::-", jjjobject.getString("service_name"));
serviceArrayList.add(movie);
sArrayList.add(serviceArrayList.get(k).getName());
// Array Level 3 --- END
}
}
}
return true;
}
And here is how i am populating Spinners:
spinner1.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item,
cArrayList));
spinner2.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item,
tArrayList));
spinner3.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item,
sArrayList));
286
Oreo. Here is the full code.
Category class
public class Category {
String name;
ArrayList<ArrayList<Type>> type;
Category()
{
name = "";
type = new ArrayList<ArrayList<Type>>();
}
void setName(String s)
{
name =s;
}
public String getName()
{
return name;
}
void setTypeArrayList(ArrayList<Type> serviceArrayList)
{
type.add(serviceArrayList);
}
ArrayList<Type> getTypeArrayList(int i)
{
return type.get(i);
}
}
Type class
import java.util.ArrayList;
public class Type {
String type;
ArrayList<ArrayList<Service>> service;
public Type() {
// TODO Auto-generated constructor stub
type = "";
service = new ArrayList<ArrayList<Service>>();
}
void setName(String s)
{
type =s;
}
public String getName()
{
return type;
}
void setServiceArrayList(ArrayList<Service> serviceArrayList)
{
service.add(serviceArrayList);
}
ArrayList<Service> getServiceArrayList(int i)
{
return service.get(i);
}
}
Service class
public class Service {
String service;
public Service() {
// TODO Auto-generated constructor stub
service ="";
}
void setName(String s)
{
service =s;
}
public String getName()
{
return service;
}
}
initialize global
int catpos =0;
ArrayList<Category> categoryArrayList = new ArrayList<Category>();
ArrayList<String> cArrayList = new ArrayList<String>();
ArrayList<Type> typeArrayList;
ArrayList<Service> serviceArrayList;
doInbackground
//your http request and response process
JSONObject jsono;
try {
jsono = new JSONObject(data);
JSONArray jarray = jsono.getJSONArray("categories");
for (int i = 0; i < jarray.length(); i++) {
JSONObject object = jarray.getJSONObject(i);
Category language = new Category();
language.setName(object.getString("category_name"));
Log.d("category_name::-", object.getString("category_name"));
JSONArray jsarray = object.getJSONArray("types");
typeArrayList = new ArrayList<Type>();
tArrayList = new ArrayList<String>();
for (int j = 0; j < jsarray.length(); j++) {
JSONObject jjobject = jsarray.getJSONObject(j);
Type genre = new Type();
genre.setName(jjobject.getString("type_name"));
Log.d("type_name::-", jjobject.getString("type_name"));
JSONArray jsonarray = jjobject.getJSONArray("services");
serviceArrayList = new ArrayList<Service>();
sArrayList = new ArrayList<String>();
for (int k = 0; k < jsonarray.length(); k++) {
JSONObject jjjobject = jsonarray.getJSONObject(k);
Service movie = new Service();
movie.setName(jjjobject.getString("service_name"));
Log.d("service_name::-",
jjjobject.getString("service_name"));
serviceArrayList.add(movie);
sArrayList.add(serviceArrayList.get(k).getName());
}
genre.setServiceArrayList(serviceArrayList);
typeArrayList.add(genre);
tArrayList.add(typeArrayList.get(j).getName());
}
language.setTypeArrayList(typeArrayList);
categoryArrayList.add(language);
cArrayList.add(categoryArrayList.get(i).getName());
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
onPostExecute Method
tArrayList = new ArrayList<String>();
sArrayList = new ArrayList<String>();
Category c = categoryArrayList.get(0);
typeArrayList = c.getTypeArrayList(0);
for(int i=0;i<typeArrayList.size();i++)
tArrayList.add(typeArrayList.get(i).getName());
Type t = typeArrayList.get(0);
serviceArrayList = t.getServiceArrayList(0);
for(int i=0;i<serviceArrayList.size();i++)
sArrayList.add(serviceArrayList.get(i).getName());
spinner1.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, cArrayList));
spinner2.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, tArrayList));
spinner3.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, sArrayList));
spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
catpos = pos;
tArrayList = new ArrayList<String>();
sArrayList = new ArrayList<String>();
Category c = categoryArrayList.get(pos);
typeArrayList = c.getTypeArrayList(0);
for(int i=0;i<typeArrayList.size();i++)
tArrayList.add(typeArrayList.get(i).getName());
Type t = typeArrayList.get(0);
serviceArrayList = t.getServiceArrayList(0);
for(int i=0;i<serviceArrayList.size();i++)
sArrayList.add(serviceArrayList.get(i).getName());
spinner2.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, tArrayList));
spinner3.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, sArrayList));
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
spinner2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view,
int pos, long id) {
sArrayList = new ArrayList<String>();
Category c = categoryArrayList.get(catpos);
typeArrayList = c.getTypeArrayList(0);
Type t = typeArrayList.get(pos);
serviceArrayList = t.getServiceArrayList(0);
for(int i=0;i<serviceArrayList.size();i++)
sArrayList.add(serviceArrayList.get(i).getName());
spinner3.setAdapter(new ArrayAdapter<String>(CategoryActivity.this,
android.R.layout.simple_spinner_dropdown_item, sArrayList));
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
This should do what you want, however, I am not sure why you are reading a json, but you seems to know the content already. i.e. you want something so specific in spinner 3
categoryArrayList = new ArrayList<Category>();
cArrayList = new ArrayList<String>();
...................................
JSONArray jarray = jsono.getJSONArray("categories");
for (int i = 0; i < jarray.length(); i++) {
JSONObject object = jarray.getJSONObject(i);
Category language = new Category();
language.setName(object.getString("category_name"));
Log.d("category_name::-", object.getString("category_name"));
language.setTypeArrayList(typeArrayList);
categoryArrayList.add(language);
cArrayList.add(categoryArrayList.get(i).getName());
}
JSONArray jsarray = jarray.getJSONObject(0).getJSONArray("types");
typeArrayList = new ArrayList<Type>();
tArrayList = new ArrayList<String>();
for (int j = 0; j < jsarray.length(); j++) {
JSONObject jjobject = jsarray.getJSONObject(j);
Type genre = new Type();
genre.setName(jjobject.getString("type_name"));
Log.d("type_name::-", jjobject.getString("type_name"));
genre.setServiceArrayList(serviceArrayList);
typeArrayList.add(genre);
tArrayList.add(typeArrayList.get(j).getName());
}
JSONArray jsonarray = jsarray.getJSONObject(1).getJSONArray("services");
serviceArrayList = new ArrayList<Service>();
sArrayList = new ArrayList<String>();
for (int k = 0; k < jsonarray.length(); k++) {
JSONObject jjjobject = jsonarray.getJSONObject(k);
Service movie = new Service();
movie.setName(jjjobject.getString("service_name"));
Log.d("service_name::-", jjjobject.getString("service_name"));
serviceArrayList.add(movie);
sArrayList.add(serviceArrayList.get(k).getName());
}
return true;
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