I want to populate the Spinner-2 on basis of Spinner-1 .
For example if I select Newton then Spinner-2 will show only Force and Apple and not the other values and if I select Hiiii only ds should populate on the Spinner-2. This is just an example which I am showing in the image below(all values are dynamic in the original app).Where ever there is any value selected in spinner-1 the value with the determined tag should be populated in the spinner-2.
UPDATE-3 MainActivity.java
public class MainActivity extends Activity implements AdapterView.OnItemSelectedListener, OnClickListener {
ArrayList<String> title;
ArrayList<String> title2;
Button button;
Spinner spinner;
Spinner spinner2;
private EditText fromDateEtxt;
//private EditText toDateEtxt;
private DatePickerDialog fromDatePickerDialog;
//private DatePickerDialog toDatePickerDialog;
private SimpleDateFormat dateFormatter;
ArrayAdapter<String> from_adapter;
ArrayAdapter<String> from_adapter2;
Map<String, List<String>> values = new HashMap<String, List<String>>();
@TargetApi(Build.VERSION_CODES.GINGERBREAD)
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
title = new ArrayList<String>();
title2 = new ArrayList<String>();
button = (Button) findViewById(R.id.button1);
spinner = (Spinner) findViewById(R.id.spinner1);
spinner.setOnItemSelectedListener(this);
spinner2 = (Spinner) findViewById(R.id.spinner2);
spinner2.setOnItemSelectedListener(this);
findViewsById();
setDateTimeField();
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
button.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
parse();
from_adapter=new ArrayAdapter<String>(getBaseContext(),android.R.layout.simple_spinner_item, title);
from_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
from_adapter2=new ArrayAdapter<String>(getBaseContext(),android.R.layout.simple_spinner_item, title2);
from_adapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(from_adapter);
spinner2.setAdapter(from_adapter2);
}
private Object from_adapter(int i) {
// TODO Auto-generated method stub
return null;
}
});
}
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id) {
Toast.makeText(parent.getContext(), ""+spinner.getSelectedItem().toString().trim(),
Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> arg0) {
}
protected void parse() {
// TODO Auto-generated method stub
try {
URL url = new URL(
"WEB URL");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(url.openStream()));
doc.getDocumentElement().normalize();
NodeList nodeList = doc.getElementsByTagName("a:AAAA");
for (int i = 0; i < nodeList.getLength(); i++) {
Element el = (Element) nodeList.item(i);
// get the a:W value
String awValue = el.getElementsByTagName("a:W").item(0).getTextContent();
// add the above value in our map as key if it isn't present in the map, this key will
// have a list associated with it in which ALL the values for a:R will be stored, if
// the awValue key is present then you just add the new a:R value to its list
if (!values.containsKey(awValue)) {
values.put(awValue, new ArrayList<String>());
}
// also add the value pointed by a:R to the list associated with a:W
String arValue = el.getElementsByTagName("a:R").item(0).getTextContent();
values.get(awValue).add(arValue);
Log.d("ADebugTag", "Value: " + arValue);
}
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
Element fstElmnt = (Element) node;
NodeList nameList = fstElmnt.getElementsByTagName("a:W");
Element nameElement = (Element) nameList.item(0);
nameList = nameElement.getChildNodes();
NodeList websiteList = fstElmnt.getElementsByTagName("a:R");
Element websiteElement = (Element) websiteList.item(0);
websiteList = websiteElement.getChildNodes();
title.add(((Node) nameList.item(0)).getNodeValue());
}
NodeList nodeList2 = doc.getElementsByTagName("a:AAAA");
for (int i = 0; i < nodeList2.getLength(); i++) {
Node node = nodeList2.item(i);
Element fstElmnt = (Element) node;
NodeList nameList = fstElmnt.getElementsByTagName("a:R");
Element nameElement = (Element) nameList.item(0);
nameList = nameElement.getChildNodes();
title2.add(((Node) nameList.item(0)).getNodeValue());
}
Set<String> set = new LinkedHashSet<String>(title);
title = new ArrayList<String>(set);
// Collection<String> set = new LinkedHashSet<String>(months);
Set<String> set2 = new LinkedHashSet<String>(title2);
title2 = new ArrayList<String>(set2);
System.out.println("list are");
System.out.println(set);
System.out.println("list 2 are");
System.out.println(set2);
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
}
}
Update-4
I am Getting the below values IN THE LOGCAT
{
Jackfruit=[Cabbage, Kesar, Amond],
Datia=[Kalpi, Kesar, Brinjal],
Brinjal=[Cabbage, Kesar, Amond]
}
So,if Jackfruit is selected in spinner1 then- Cabbage, Kesar, Amond should diplay in spinner2
The above logcat I am getting from the below code of the UPDATE-3 of the MainActivity.java
NodeList nodeList = doc.getElementsByTagName("a:AAAAA");
for (int i = 0; i < nodeList.getLength(); i++) {
Element el = (Element) nodeList.item(i);
// get the a:W value
String awValue = el.getElementsByTagName("a:W").item(0).getTextContent();
// add the above value in our map as key if it isn't present in the map, this key will
// have a list associated with it in which ALL the values for a:R will be stored, if
// the awValue key is present then you just add the new a:R value to its list
if (!values.containsKey(awValue)) {
values.put(awValue, new ArrayList<String>());
}
// also add the value pointed by a:R to the list associated with a:W
String arValue = el.getElementsByTagName("a:R").item(0).getTextContent();
values.get(awValue).add(arValue);
// Log.d("ADebugTag", "Value: " + arValue);
}
Log.d("ADebugTag", "Value: " + values);
How should I pass the key value to spinner and if spinner key value is changed then respective values should change in spinner2