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我正在使用spinner.I想使用包含熟练ID和从服务器接收的名称的json数据填充微调器。我将接收的数据存储在Bean_ProficiencyLevel它包含id和name.I使用一个名为Adapter_Proficiency的自定义数组适配器，它只加载文本视图的名称。我使用此适配器来填充spinner.I在这里得到意外的结果.Spinner显示如下所示的值：无法使用动态JSON数据填充微调器
1.截图
点击任何项目后，我得到预期的价值。优秀如下图：
2.截图
我无法找出为什么在转我得到不适当的数据之前上市下面给出selection.My码：
Adapter_Proficiency.java
public class Adapter_Proficiency extends ArrayAdapter<Bean_ProficiencyLevel> {
private ArrayList<Bean_ProficiencyLevel> items;
private ArrayList<Bean_ProficiencyLevel> itemsAll;
private ArrayList<Bean_ProficiencyLevel> suggestions;
private int viewResourceId;
public Adapter_Proficiency(Context context, int viewResourceId, ArrayList<Bean_ProficiencyLevel> items) {
super(context, viewResourceId, items);
this.items = items;
this.itemsAll = (ArrayList<Bean_ProficiencyLevel>) items.clone();
this.suggestions = new ArrayList<Bean_ProficiencyLevel>();
this.viewResourceId = viewResourceId;
}
public View getView(int position, View v, ViewGroup parent) {
if (v == null) {
LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = inflater.inflate(viewResourceId,parent,false);
}
Bean_ProficiencyLevel bean_proficiencyLevel = items.get(position);
if (bean_proficiencyLevel != null) {
TextView txtProficiency = (TextView) v.findViewById(R.id.txtProficiency);
if (txtProficiency != null) {
txtProficiency.setText(bean_proficiencyLevel.getProficiencyValue());
}
}
return v;
}
@Override
public Filter getFilter() {
return nameFilter;
}
Filter nameFilter = new Filter() {
@Override
public String convertResultToString(Object resultValue) {
String str = ((Bean_ProficiencyLevel) (resultValue)).getProficiencyValue();
return str;
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
if (constraint != null) {
suggestions.clear();
for (Bean_ProficiencyLevel bean_proficiencyLevel : itemsAll) {
if (bean_proficiencyLevel.getProficiencyValue().toLowerCase().startsWith(constraint.toString().toLowerCase())) {
suggestions.add(bean_proficiencyLevel);
}
}
FilterResults filterResults = new FilterResults();
filterResults.values = suggestions;
filterResults.count = suggestions.size();
return filterResults;
} else {
return new FilterResults();
}
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
ArrayList<Bean_ProficiencyLevel> filteredList = (ArrayList<Bean_ProficiencyLevel>) results.values;
if (results != null && results.count > 0) {
clear();
for (Bean_ProficiencyLevel c : filteredList) {
add(c);
}
notifyDataSetChanged();
}
}
};
}
Tab_TechnicalSkills.java
public class Tab_TechincalSkills extends Activity {
private ListView lv_technicalSkills;
String URL_GetAllSkillDetails, URL_GetAllProficiencyLevel;
private APIConfiguration apiConfiguration;
private SharedPreferences prefs;
private ArrayList<Bean_Skill> arrayList;
private ArrayList<Bean_ProficiencyLevel> arrayListProficiency;
private Adapter_Skill adapter_skill;
AutoCompleteTextView actv_skill, actv_proficiency;
HttpRequestProcessor httpRequestProcessor;
Bean_Skill bean_skill;
Spinner sp_proficiency;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_technical_skill);
//findViewByID
actv_skill = (AutoCompleteTextView) findViewById(R.id.actv_skillName);
//actv_proficiency = (AutoCompleteTextView) findViewById(R.id.actv_proficiency);
sp_proficiency = (Spinner) findViewById(R.id.sp_proficiency);
arrayList = new ArrayList<Bean_Skill>();
arrayListProficiency = new ArrayList<Bean_ProficiencyLevel>();
httpRequestProcessor = new HttpRequestProcessor();
lv_technicalSkills = (ListView) findViewById(R.id.lv_Technical_Skills);
prefs = getApplicationContext().getSharedPreferences(Prefs_Registration.pacakgename, Context.MODE_PRIVATE);
//Get userID
String userID = prefs.getString(Prefs_Registration.get_user_id, "");
//Get Access token
String accessToken = prefs.getString(Prefs_Registration.get_AccessToken, "");
//Get Api_end_point
apiConfiguration = new APIConfiguration();
String api = apiConfiguration.getApi();
URL_GetAllSkillDetails = api + "/webservice/getAllSkills?user_id=" + userID + "&access_token=" + accessToken;
URL_GetAllProficiencyLevel = api + "/webservice/getProficiencyLevels?user_id=" + userID + "&access_token=" + accessToken;
//Get listing of skills
new SkillDetailsTask().execute();
//Get all proficiency levels
new ProficiencyLevelDetailsTask().execute();
}
//Get list of all skills
class SkillDetailsTask extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... strings) {
String response = httpRequestProcessor.gETRequestProcessor(URL_GetAllSkillDetails);
return response;
}
@Override
protected void onPostExecute(String s) {
Log.e("JSONARRAY", s);
try {
JSONArray jsonArray = new JSONArray(s);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
String id = jsonObject.getString("id");
String text = jsonObject.getString("text");
// Adding data to Bean
bean_skill = new Bean_Skill();
bean_skill.setSkill_id(id);
bean_skill.setSkill_name(text);
//Adding bean object to array
arrayList.add(bean_skill);
}
Adapter_Skill adapter_skill = new Adapter_Skill(Tab_TechincalSkills.this, R.layout.single_row_skill, arrayList);
actv_skill.setAdapter(adapter_skill);
actv_skill.setThreshold(2);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
class ProficiencyLevelDetailsTask extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... strings) {
String response = httpRequestProcessor.gETRequestProcessor(URL_GetAllProficiencyLevel);
Log.e("ResponseProficiency", response);
return response;
}
@Override
protected void onPostExecute(String s) {
try {
JSONArray jsonArray = new JSONArray(s);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
String id = jsonObject.getString("id");
Log.e("idProficiency", id);
String name = jsonObject.getString("name");
Bean_ProficiencyLevel bean = new Bean_ProficiencyLevel();
//Adding data to Bean
bean.setId(id);
bean.setProficiencyValue(name);
//Adding bean to ArrayList
arrayListProficiency.add(bean);
}
Adapter_Proficiency adapter_proficiency = new Adapter_Proficiency(Tab_TechincalSkills.this, R.layout.single_row_proficiency, arrayListProficiency);
sp_proficiency.setAdapter(adapter_proficiency);
/*actv_proficiency.setAdapter(adapter_proficiency);
actv_proficiency.setThreshold(0);*/
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
Bean_ProficiencyLevel.java
public class Bean_ProficiencyLevel {
String id, proficiencyValue;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getProficiencyValue() {
return proficiencyValue;
}
public void setProficiencyValue(String proficiencyValue) {
this.proficiencyValue = proficiencyValue;
}
}
HttpRequestProcessor.java
public class HttpRequestProcessor {
String jsonString, requestMethod, requestURL, jsonResponseString, responseCode;
StringBuilder sb;
Response response; // Response class will store http JSON Response string and Response Code
// This method will process POST request and return a response object containing Response String and Response Code
public Response pOSTRequestProcessor(String jsonString, String requestURL) {
sb = new StringBuilder();
response = new Response();
try {
// Sending data to API
URL url = new URL(requestURL);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Content-Type", "application/json");
httpURLConnection.setReadTimeout(15000);
httpURLConnection.setConnectTimeout(15000);
OutputStreamWriter out = new OutputStreamWriter(httpURLConnection.getOutputStream());
out.write(jsonString); // Transmit data by writing to the stream returned by getOutputStream()
out.flush();
out.close();
// Read the response
InputStream inputStream = new BufferedInputStream(httpURLConnection.getInputStream());
InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
BufferedReader br = new BufferedReader(inputStreamReader);
String responseData = br.readLine();
while (responseData != null) {
sb.append(responseData);
responseData = br.readLine();
}
// Reading the response code
int responseCode = httpURLConnection.getResponseCode();
// Log.e("Response Code", String.valueOf(responseCode));
response.setResponseCode(responseCode);
br.close();
httpURLConnection.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
jsonResponseString = sb.toString();
response.setJsonResponseString(jsonResponseString);
return response; //return response object
}
// This method will process http GET request and return json response string
public String gETRequestProcessor(String requestURL) {
sb = new StringBuilder();
try {
URL url = new URL(requestURL);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setRequestProperty("Content-Length", "0");
int status = urlConnection.getResponseCode();
Log.e("Status", String.valueOf(status));
InputStream inputStream = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
String responseData = br.readLine();
while (responseData != null) {
sb.append(responseData);
responseData = br.readLine();
}
br.close();
urlConnection.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (ProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
jsonResponseString = sb.toString();
return jsonResponseString;
}
public String pUTRequestProcessor(String jsonString, String requestURL) {
sb = new StringBuilder();
try {
//sending data to API
URL urlMobileUser = new URL(requestURL);
HttpURLConnection urlConnection = (HttpURLConnection) urlMobileUser.openConnection();
urlConnection.setDoInput(true);
urlConnection.setDoOutput(true);
urlConnection.setRequestMethod("PUT");
urlConnection.setRequestProperty("Content-Type", "application/json");
urlConnection.setReadTimeout(15000); //Sets the maximum time to wait for an input stream read to complete before giving up
urlConnection.setConnectTimeout(15000); //Sets the maximum time in milliseconds to wait while connecting
OutputStreamWriter out = new OutputStreamWriter(urlConnection.getOutputStream());
out.write(jsonString);
out.flush();
out.close();
//getting response from API
InputStream inputStream = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
String responseData = br.readLine();
while (responseData != null) {
sb.append(responseData);
responseData = br.readLine();
}
br.close();
urlConnection.disconnect();
} catch (Exception ex) {
Log.e("Connection error", ex.toString());
}
jsonResponseString = sb.toString();
// Log.e("JSON Response String", jsonResponseString);
return jsonResponseString;
}
}
请帮我解决这个问题。
user3597165，这意味着，我必须同时使用getView（）和getDropDownView（）方法。当我只使用getDropDownView（）方法，下拉显示的是正确的值，但在选择后在视图上设置了十六进制值。当我同时使用getView（）和getDropDownView（）方法时，其工作良好，但需要一些时间进行选择。感谢您的帮助user3597165。 –