Вот код для анализа XML-файла, в котором вам нужно будет передать входной поток вашего локального XML-файла.
public static ArrayList<Country> parseCountry(Context context, InputStream inputStream) {
String KEY = "";
String VALUE = null;
ArrayList<Country> arrCountires = new ArrayList<Country>();
Country country = null;
ArrayList<State> arrStates = null;
State state= null;
ArrayList<City> arrCities = null;
City city = null;
try {
InputStreamReader inputreader = null;
if(inputStream != null) {
inputreader = new InputStreamReader(inputStream);
}
if(inputreader != null) {
XmlPullParserFactory factory = null;
factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
XmlPullParser xpp = null;
xpp = factory.newPullParser();
xpp.setInput(inputreader);
int eventType = 0;
eventType = xpp.getEventType();
eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if(eventType == XmlPullParser.START_TAG) {
KEY = xpp.getName();
if(KEY.equalsIgnoreCase(TAGS.COUNTRIES)) {
arrCountires = new ArrayList<Country>();
}else if(KEY.equalsIgnoreCase(TAGS.COUNTRY)) {
country = new Country();
arrStates = new ArrayList<State>();
country.setCountryId(xpp.getAttributeValue(null, TAGS.ID));
}else if(KEY.equalsIgnoreCase(TAGS.STATE)) {
state = new State();
arrCities = new ArrayList<City>();
state.setStateId(xpp.getAttributeValue(null, TAGS.ID));
}else if(KEY.equalsIgnoreCase(TAGS.CITY)) {
city = new City();
city.setCityId(xpp.getAttributeValue(null, TAGS.ID));
}
}else if(eventType == XmlPullParser.END_TAG) {
KEY = xpp.getName();
if(KEY.equalsIgnoreCase(TAGS.COUNTRY)) {
country.setArrStates(arrStates);
arrCountires.add(country);
}else if(KEY.equalsIgnoreCase(TAGS.COUNTRY_NAME)) {
country.setCountryName(VALUE);
}else if(KEY.equalsIgnoreCase(TAGS.STATE_NAME)) {
state.setStateName(VALUE);
}else if(KEY.equalsIgnoreCase(TAGS.STATE)) {
state.setArrCities(arrCities);
arrStates.add(state);
}else if(KEY.equalsIgnoreCase(TAGS.CITY)) {
arrCities.add(city);
}else if(KEY.equalsIgnoreCase(TAGS.CITY_NAME)) {
city.setCityName(VALUE);
}
}else if(eventType == XmlPullParser.TEXT) {
VALUE = xpp.getText();
}
eventType = xpp.next();
}
}
}
catch (Exception e) {
e.printStackTrace();
}finally {
if(inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return arrCountires;
}
Вот класс Country с Getter иМетоды установки.
public class Country {
String countryId;
String countryName;
ArrayList<State> arrStates;
public ArrayList<State> getArrStates() {
return arrStates;
}
public void setArrStates(ArrayList<State> arrStates) {
this.arrStates = arrStates;
}
public String getCountryId() {
return countryId;
}
public void setCountryId(String countryId) {
this.countryId = countryId;
}
public String getCountryName() {
return countryName;
}
public void setCountryName(String countryName) {
this.countryName = countryName;
}
}
Вот класс адаптера для установки страны в счетчике.
private class CountryAdapter implements SpinnerAdapter{
ArrayList<Country> data;
public CountryAdapter(ArrayList<Country> data){
this.data = data;
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
return android.R.layout.simple_spinner_dropdown_item;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView v = new TextView(getApplicationContext());
v.setTextColor(Color.BLACK);
v.setText(data.get(position).getName());
v.setTextSize(15);
v.setPadding(10, 10, 10, 10);
v.setSingleLine();
v.setEllipsize(TruncateAt.END);
return v;
}
@Override
public int getViewTypeCount() {
return android.R.layout.simple_spinner_item;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isEmpty() {
return false;
}
@Override
public void registerDataSetObserver(DataSetObserver observer) {
}
@Override
public void unregisterDataSetObserver(DataSetObserver observer) {
}
@Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
return this.getView(position, convertView, parent);
}
}
Вот интерфейс черезкоторый вы можете получить выбранную страну из счетчика
OnItemSelectedListener OnCountrySelected = new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View v, int position,
long id) {
if(position != AdapterView.INVALID_POSITION) {
System.out.println("Country name = " + arrCountries.get(position).getName());
//Here you can set this value to the textview
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
};
Вот способ, которым вы можете установить Слушатель на счетчик
spCountry.setOnItemSelectedListener(OnCountrySelected);
Вот код для открытия файла в качестве входного потока из активов
try {
InputStream inputStream = v.getContext().getAssets().open("path of file");
ArrayList<Country> arrCountries = parseCountry(this, inputStream);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Когда вы получите ответ в массиве Country, тогда установите адаптер на счетчик
CountryAdapter countryAdapter = new CountryAdapter(arrCountry);
spCountry.setAdapter(countryAdapter);