我在xml中创建了两个微调器，即myspinner和myspinner1。 myspinner值是从json值获得的。基于选择的myspinner项目，我们获取酒店id。检索到的酒店id用于调用另一个AsyncT1。在AsyncT1中，myspinner1值被列出。我的问题是，如果我选择myspinner myspinner1值没有更新它保持不变。我已经尝试过adapter.notifydatasetchanged（）但直到现在还没有更新。
class AsyncT extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
SharedPreferences prefs = getSharedPreferences(MyPREFERENCES, MODE_PRIVATE);
String userID = prefs.getString("userid", null);
System.out.println("userID---"+userID);
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://airbnb.abservetech.com/demo/public/mobile/hotelroom/hotel");
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("user_id", userID));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
Log.e("mainToPost", "mainToPost" + nameValuePairs.toString());
/* execute */
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
InputStream inputStream = response.getEntity().getContent();
InputStreamToStringExample str = new InputStreamToStringExample();
responseServer = str.getStringFromInputStream(inputStream);
Log.d("response", "response -----" + responseServer);
//Get the instance of JSONArray that contains JSONObjects
// postData(responseServer);
JSONObject jsonRootObject = new JSONObject(responseServer);
JSONArray jsonArray = jsonRootObject.optJSONArray("Hotel_details");
//Iterate the jsonArray and print the info of JSONObjects
for (int i1 = 0; i1 < jsonArray.length(); i1++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i1);
Movie movie = new Movie();
movie.setHotelid1(jsonObject.optString("hotel_id").toString());
movie.setHotelname1(jsonObject.optString("hotel_name").toString());
hotelNames.add(jsonObject.optString("hotel_name").toString());
movieList.add(movie);
System.out.println("movie list" + movieList);
runOnUiThread(new Runnable() {
@Override
public void run() {
Adapter = (new ArrayAdapter<String>(Edit_room.this, android.R.layout.simple_spinner_dropdown_item, hotelNames));
mySpinner.setAdapter(Adapter);
Adapter.notifyDataSetChanged();
mySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0,
View arg1, int position, long arg3) {
// TODO Auto-generated method stub
// Locate the textviews in activity_main.xml
// Set the text followed by the position
hotelid= (movieList.get(position).getHotelid1());
System.out.println("name--"+hotelid);
new AsyncT1().execute(hotelid);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
});
}
catch (JSONException e) {
e.printStackTrace();
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String aVoid) {
super.onPostExecute(aVoid);
}
}
class AsyncT1 extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
// http://airbnb.abservetech.com/demo/public/mobile/hotelroom/roomid?hotel_id=79
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://airbnb.abservetech.com/demo/public/mobile/hotelroom/show");
SharedPreferences prefs = getSharedPreferences(MyPREFERENCES, MODE_PRIVATE);
String userID = prefs.getString("userid", null);
System.out.println("userID---"+userID);
/*hotel_id&room_type&room_prize&is_active&available_status&adults_count&room_count&room_images&
room_desc&room_name&room_footage&General&Services&Food_Beverages&Outdoors&Activities&
Dining&Media_Entertainment&Kitchen&Others*/
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("hotel_id", hotelid));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
Log.e("mainToPost", "mainToPost" + nameValuePairs.toString());
/* execute */
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
InputStream inputStream = response.getEntity().getContent();
InputStreamToStringExample str = new InputStreamToStringExample();
responseServer = str.getStringFromInputStream(inputStream);
Log.d("response", "viewroomresponse -----" + responseServer);
JSONObject jsonRootObject = new JSONObject(responseServer);
JSONArray jsonArray = jsonRootObject.optJSONArray("view_room_details");
//Iterate the jsonArray and print the info of JSONObjects
for (int i1 = 0; i1 < jsonArray.length(); i1++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i1);
Movie movie = new Movie();
// movie.setViewRoomtype(jsonObject.optString("room_type").toString());
movie.setViewRoomprice(jsonObject.optString("room_prize").toString());
movie.setViewIsActive(jsonObject.optString("is_active").toString());
movie.setViewAvailablestatus(jsonObject.optString("available_status").toString());
movie.setViewAdultcount(jsonObject.optString("adults_count").toString());
movie.setViewRoomcount(jsonObject.optString("room_count").toString());
movie.setViewRoomdesc(jsonObject.optString("room_desc").toString());
movie.setViewRoomname(jsonObject.optString("room_name").toString());
movie.setViewRoomfootage(jsonObject.optString("room_footage").toString());
RoomNames.add(jsonObject.optString("room_type").toString());
movieList.add(movie);
runOnUiThread(new Runnable() {
@Override
public void run() {
// ArrayAdapter<String> Adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,RoomNames);
// Adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Adapter.notifyDataSetChanged();
// mySpinner1.setAdapter(Adapter);
Adapter1 =(new ArrayAdapter<String>(Edit_room.this, android.R.layout.simple_spinner_dropdown_item, RoomNames));
if(Adapter1!=null){
Adapter1.notifyDataSetChanged();
mySpinner1.setAdapter(Adapter1);
}
else{ mySpinner1.setAdapter(Adapter1);}
mySpinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0,
View arg1, int position, long arg3) {
// TODO Auto-generated method stub
// Locate the textviews in activity_main.xml
// Set the text followed by the position
hotelid= (movieList.get(position).getHotelid1());
room_price.setText(movieList.get(position).getViewRoomprice());
description.setText(movieList.get(position).getViewRoomdesc());
adult_count.setText(movieList.get(position).getViewAdultcount());
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
});
}
catch (JSONException e) {
e.printStackTrace();
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String aVoid) {
super.onPostExecute(aVoid);
}
}
`
答案 0 :(得分：0)