I am trying to get server data into my spinner , but when i tried with this code , i am not getting anything, its not showing any data in spinner. here is my Home.java file:
public class Home extends AppCompatActivity implements AdapterView.OnItemClickListener, AdapterView.OnItemSelectedListener {
private Spinner countrySpinner, locationSpinner, citySpinner;
private TextView cityCodeTextView;
private Button submitButton;
private ArrayList<String> country_list, location_list, city_list;
private JSONArray result;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
countrySpinner = (Spinner) findViewById(Country);
//citySpinner = (Spinner) findViewById(City);
//locationSpinner = (Spinner) findViewById(R.id.Location);
countrySpinner.setOnItemSelectedListener(this);
country_list = new ArrayList<String>();
//location_list = new ArrayList<String>();
// city_list = new ArrayList<String>();
getData();
}
private void getData(){
StringRequest
stringRequest = new StringRequest(Config.DATA_URL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
JSONObject j = null;
try {
Log.d("Test",response);
j = new JSONObject(response);
//Storing the Array of JSON String to our JSON Array
result = j.getJSONArray(Config.JSON_ARRAY);
//Calling method getStudents to get the students from the JSON Array
getCountry(result);
} catch (JSONException e) {
e.printStackTrace();
}
}
},new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue.add(stringRequest);
}
private void getCountry(JSONArray jsonArrayCountry){
//Traversing through all the items in the json array
List<Country> countries = new ArrayList<>();
try {
String country_name, country_code;
JSONObject countries_object;
for (int i = 0; i < jsonArrayCountry.length(); i++) {
countries_object = jsonArrayCountry.getJSONObject(i);
country_code = countries_object.getString("id");
country_name = countries_object.getString("country");
countries.add(new Country(country_code, country_name));
}
ArrayAdapter countryAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, countries);
countrySpinner.setAdapter(countryAdapter);
countrySpinner.setOnItemSelectedListener(this);
} catch (JSONException e) {
Log.e("Home", e.getLocalizedMessage(), e);
}
}
//Method to get student name of a particular position
//Doing the same with this method as we did with getName()
//Doing the same with this method as we did with getName()
//this method will execute when we pic an item from the spinner
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
//Setting the values to textviews for a selected item
//textViewName.setText(getName(position));
//textViewCourse.setText(getCourse(position));
//textViewSession.setText(getSession(position));
}
//When no item is selected this method would execute
@Override
public void onNothingSelected(AdapterView<?> parent) {
// textViewName.setText("");
// textViewCourse.setText("");
//textViewSession.setText("");
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
}
}
this is congig.java file:
public class Config {
//JSON URL
public static final String DATA_URL = "http://..../get_country.php";
//JSON array name
public static final String JSON_ARRAY = "result";
}
this is my json:
[
{
"id": "1",
"country": "UAE"
},
{
"id": "2",
"country": "UK"
},
{
"id": "3",
"country": "SAUDI ARABIA"
},
{
"id": "4",
"country": "OMAN"
},
{
"id": "5",
"country": "BAHRAIN"
}
]
i am not getting any error in logcat...i dont know why its not showing??
