排序JSONArray后，自定义列表视图没有改变？ [英] After sorting JSONArray,Custom list view not changed?
本文介绍了排序JSONArray后，自定义列表视图没有改变？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我排序JSONArray并显示在自定义列表视图中，但排序后数据在自定义列表视图中没有更改。
I am sorting JSONArray and show them in a custom list view, but after sorting the data does not changed in custom list view.
这里是我的代码fab按钮选择要执行的排序：
Here is my code for fab button to select which sort is to be perform:
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder builder=new AlertDialog.Builder(SearchResult.this);
builder.setTitle("Sort List Item");
builder.setItems(new CharSequence[]{"By Name", "By Father Name","By EPIC","By House Number"}, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
switch (i)
{
case 0:
Toast.makeText(getApplicationContext(), "By Name", Toast.LENGTH_SHORT).show();
sortJsonTechnique="1";
if (myData)
{
sortByName(sortdata,sortJsonTechnique);
}
break;
case 1:
Toast.makeText(getApplicationContext(), "By Father Name", Toast.LENGTH_SHORT).show();
sortJsonTechnique="2";
if (myData)
{
sortByName(sortdata,sortJsonTechnique);
}
break;
case 2:
Toast.makeText(getApplicationContext(), "By EPIC", Toast.LENGTH_SHORT).show();
sortJsonTechnique="3";
if (myData)
{
sortByName(sortdata,sortJsonTechnique);
}
break;
case 3:
Toast.makeText(getApplicationContext(), "By House Number", Toast.LENGTH_SHORT).show();
sortJsonTechnique="4";
if (myData)
{
sortByName(sortdata,sortJsonTechnique);
}
break;
default:
break;
}
}
});
builder.show();
}
});
在fab按钮选择之后，点击i sort json数组。
这里是parse json数组的代码：
And after selection made in fab button click i sort json array. Here is code for parse json array:
private void sortByName(String mysortJson,String sortType)
{
List<JSONObject> jsonObjects=new ArrayList<JSONObject>();
try {
JSONObject object=new JSONObject(mysortJson);
JSONArray jsonArray=object.getJSONArray("Data");
for (int i=0;i<jsonArray.length();i++)
{
jsonObjects.add(jsonArray.getJSONObject(i));
}
if (sortType.equals("1"))
{
Collections.sort(jsonObjects, new Comparator<JSONObject>() {
@Override
public int compare(JSONObject a, JSONObject b) {
String val1=new String();
String val2=new String();
try {
val1=(String) a.get("Name");
// Log.e("Value1",""+val1);
val2=(String) b.get("Name");
// Log.e("Value2",""+val2);
} catch (JSONException e) {
e.printStackTrace();
}
return val1.compareTo(val2);
}
});
for (int j=0;j<jsonObjects.size();j++)
{
jsonArray.put(jsonObjects.get(j));
}
voter_id=new String[jsonArray.length()];
boothname_id=new String[jsonArray.length()];
voter_name=new String[jsonArray.length()];
voter_f_m_h_name=new String[jsonArray.length()];
voter_epic=new String[jsonArray.length()];
voter_h_no=new String[jsonArray.length()];
voter_mobile=new String[jsonArray.length()];
voter_gender=new String[jsonArray.length()];
voter_age=new String[jsonArray.length()];
get_voter_dob=new String[jsonArray.length()];
get_marriage_anniv=new String[jsonArray.length()];
get_voter_caste_id=new String[jsonArray.length()];
get_voter_status_id=new String[jsonArray.length()];
get_voter_social_status_id=new String[jsonArray.length()];
for (int c=0;c<jsonArray.length();c++)
{
JSONObject fetchVoter = jsonArray.getJSONObject(c);
voter_id[c] = fetchVoter.getString(KEY_VOTER_ID);
boothname_id[c] = fetchVoter.getString(KEY_BOOTHNAME_ID);
voter_name[c] = fetchVoter.getString(KEY_SEARCH_NAME);
voter_f_m_h_name[c] = fetchVoter.getString(KEY_SEARCH_F_H_M_NAME);
voter_epic[c] = fetchVoter.getString(KEY_SEARCH_EPIC_NAME);
voter_h_no[c] = fetchVoter.getString(KEY_SEARCH_HOUSE_NUMBER);
voter_mobile[c]=fetchVoter.getString(KEY_SEARCH_MOBILE);
voter_gender[c]=fetchVoter.getString(KEY_SEARCH_GENDER);
voter_age[c]=fetchVoter.getString(KEY_SEARCH_AGE);
get_voter_dob[c]=fetchVoter.getString(KEY_SEARCH_DOB);
get_marriage_anniv[c]=fetchVoter.getString(KEY_MARRIEGE_ANNIV);
get_voter_caste_id[c]=fetchVoter.getString(KEY_GET_CASTE_ID);
get_voter_status_id[c]=fetchVoter.getString(KEY_GET_STATUS_ID);
get_voter_social_status_id[c]=fetchVoter.getString(KEY_GET_SOCIAL_STATUS);
}
CustomSearchList adapter=new CustomSearchList(this,ParseJsonData.voter_id,ParseJsonData.boothname_id,ParseJsonData.voter_name,ParseJsonData.voter_f_m_h_name,ParseJsonData.voter_epic,ParseJsonData.voter_h_no,ParseJsonData.voter_mobile,ParseJsonData.voter_age,ParseJsonData.voter_gender,ParseJsonData.get_marriage_anniv,ParseJsonData.get_voter_dob,ParseJsonData.get_voter_caste_id,ParseJsonData.get_voter_status_id,ParseJsonData.get_voter_social_status_id);
searchlist.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else if (sortType.equals("2"))
{
Collections.sort(jsonObjects, new Comparator<JSONObject>() {
@Override
public int compare(JSONObject a, JSONObject b) {
String val1=new String();
String val2=new String();
try {
val1=(String) a.get("FName");
// Log.e("Value1",""+val1);
val2=(String) b.get("FName");
// Log.e("Value2",""+val2);
} catch (JSONException e) {
e.printStackTrace();
}
return val1.compareTo(val2);
}
});
for (int j=0;j<jsonObjects.size();j++)
{
jsonArray.put(jsonObjects.get(j));
}
voter_id=new String[jsonArray.length()];
boothname_id=new String[jsonArray.length()];
voter_name=new String[jsonArray.length()];
voter_f_m_h_name=new String[jsonArray.length()];
voter_epic=new String[jsonArray.length()];
voter_h_no=new String[jsonArray.length()];
voter_mobile=new String[jsonArray.length()];
voter_gender=new String[jsonArray.length()];
voter_age=new String[jsonArray.length()];
get_voter_dob=new String[jsonArray.length()];
get_marriage_anniv=new String[jsonArray.length()];
get_voter_caste_id=new String[jsonArray.length()];
get_voter_status_id=new String[jsonArray.length()];
get_voter_social_status_id=new String[jsonArray.length()];
for (int c=0;c<jsonArray.length();c++)
{
JSONObject fetchVoter = jsonArray.getJSONObject(c);
voter_id[c] = fetchVoter.getString(KEY_VOTER_ID);
boothname_id[c] = fetchVoter.getString(KEY_BOOTHNAME_ID);
voter_name[c] = fetchVoter.getString(KEY_SEARCH_NAME);
voter_f_m_h_name[c] = fetchVoter.getString(KEY_SEARCH_F_H_M_NAME);
voter_epic[c] = fetchVoter.getString(KEY_SEARCH_EPIC_NAME);
voter_h_no[c] = fetchVoter.getString(KEY_SEARCH_HOUSE_NUMBER);
voter_mobile[c]=fetchVoter.getString(KEY_SEARCH_MOBILE);
voter_gender[c]=fetchVoter.getString(KEY_SEARCH_GENDER);
voter_age[c]=fetchVoter.getString(KEY_SEARCH_AGE);
get_voter_dob[c]=fetchVoter.getString(KEY_SEARCH_DOB);
get_marriage_anniv[c]=fetchVoter.getString(KEY_MARRIEGE_ANNIV);
get_voter_caste_id[c]=fetchVoter.getString(KEY_GET_CASTE_ID);
get_voter_status_id[c]=fetchVoter.getString(KEY_GET_STATUS_ID);
get_voter_social_status_id[c]=fetchVoter.getString(KEY_GET_SOCIAL_STATUS);
}
CustomSearchList adapter=new CustomSearchList(this,ParseJsonData.voter_id,ParseJsonData.boothname_id,ParseJsonData.voter_name,ParseJsonData.voter_f_m_h_name,ParseJsonData.voter_epic,ParseJsonData.voter_h_no,ParseJsonData.voter_mobile,ParseJsonData.voter_age,ParseJsonData.voter_gender,ParseJsonData.get_marriage_anniv,ParseJsonData.get_voter_dob,ParseJsonData.get_voter_caste_id,ParseJsonData.get_voter_status_id,ParseJsonData.get_voter_social_status_id);
searchlist.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else if (sortType.equals("3"))
{
Collections.sort(jsonObjects, new Comparator<JSONObject>() {
@Override
public int compare(JSONObject a, JSONObject b) {
String val1=new String();
String val2=new String();
try {
val1=(String) a.get("EPIC");
// Log.e("Value1",""+val1);
val2=(String) b.get("EPIC");
// Log.e("Value2",""+val2);
} catch (JSONException e) {
e.printStackTrace();
}
return val1.compareTo(val2);
}
});
for (int j=0;j<jsonObjects.size();j++)
{
jsonArray.put(jsonObjects.get(j));
}
voter_id=new String[jsonArray.length()];
boothname_id=new String[jsonArray.length()];
voter_name=new String[jsonArray.length()];
voter_f_m_h_name=new String[jsonArray.length()];
voter_epic=new String[jsonArray.length()];
voter_h_no=new String[jsonArray.length()];
voter_mobile=new String[jsonArray.length()];
voter_gender=new String[jsonArray.length()];
voter_age=new String[jsonArray.length()];
get_voter_dob=new String[jsonArray.length()];
get_marriage_anniv=new String[jsonArray.length()];
get_voter_caste_id=new String[jsonArray.length()];
get_voter_status_id=new String[jsonArray.length()];
get_voter_social_status_id=new String[jsonArray.length()];
for (int c=0;c<jsonArray.length();c++)
{
JSONObject fetchVoter = jsonArray.getJSONObject(c);
voter_id[c] = fetchVoter.getString(KEY_VOTER_ID);
boothname_id[c] = fetchVoter.getString(KEY_BOOTHNAME_ID);
voter_name[c] = fetchVoter.getString(KEY_SEARCH_NAME);
voter_f_m_h_name[c] = fetchVoter.getString(KEY_SEARCH_F_H_M_NAME);
voter_epic[c] = fetchVoter.getString(KEY_SEARCH_EPIC_NAME);
voter_h_no[c] = fetchVoter.getString(KEY_SEARCH_HOUSE_NUMBER);
voter_mobile[c]=fetchVoter.getString(KEY_SEARCH_MOBILE);
voter_gender[c]=fetchVoter.getString(KEY_SEARCH_GENDER);
voter_age[c]=fetchVoter.getString(KEY_SEARCH_AGE);
get_voter_dob[c]=fetchVoter.getString(KEY_SEARCH_DOB);
get_marriage_anniv[c]=fetchVoter.getString(KEY_MARRIEGE_ANNIV);
get_voter_caste_id[c]=fetchVoter.getString(KEY_GET_CASTE_ID);
get_voter_status_id[c]=fetchVoter.getString(KEY_GET_STATUS_ID);
get_voter_social_status_id[c]=fetchVoter.getString(KEY_GET_SOCIAL_STATUS);
}
CustomSearchList adapter=new CustomSearchList(this,ParseJsonData.voter_id,ParseJsonData.boothname_id,ParseJsonData.voter_name,ParseJsonData.voter_f_m_h_name,ParseJsonData.voter_epic,ParseJsonData.voter_h_no,ParseJsonData.voter_mobile,ParseJsonData.voter_age,ParseJsonData.voter_gender,ParseJsonData.get_marriage_anniv,ParseJsonData.get_voter_dob,ParseJsonData.get_voter_caste_id,ParseJsonData.get_voter_status_id,ParseJsonData.get_voter_social_status_id);
searchlist.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
else if (sortType.equals(4))
{
Collections.sort(jsonObjects, new Comparator<JSONObject>() {
@Override
public int compare(JSONObject a, JSONObject b) {
String val1=new String();
String val2=new String();
try {
val1=(String) a.get("HouseNo");
// Log.e("Value1",""+val1);
val2=(String) b.get("HouseNo");
// Log.e("Value2",""+val2);
} catch (JSONException e) {
e.printStackTrace();
}
return val1.compareTo(val2);
}
});
for (int j=0;j<jsonObjects.size();j++)
{
jsonArray.put(jsonObjects.get(j));
}
voter_id=new String[jsonArray.length()];
boothname_id=new String[jsonArray.length()];
voter_name=new String[jsonArray.length()];
voter_f_m_h_name=new String[jsonArray.length()];
voter_epic=new String[jsonArray.length()];
voter_h_no=new String[jsonArray.length()];
voter_mobile=new String[jsonArray.length()];
voter_gender=new String[jsonArray.length()];
voter_age=new String[jsonArray.length()];
get_voter_dob=new String[jsonArray.length()];
get_marriage_anniv=new String[jsonArray.length()];
get_voter_caste_id=new String[jsonArray.length()];
get_voter_status_id=new String[jsonArray.length()];
get_voter_social_status_id=new String[jsonArray.length()];
for (int c=0;c<jsonArray.length();c++)
{
JSONObject fetchVoter = jsonArray.getJSONObject(c);
voter_id[c] = fetchVoter.getString(KEY_VOTER_ID);
boothname_id[c] = fetchVoter.getString(KEY_BOOTHNAME_ID);
voter_name[c] = fetchVoter.getString(KEY_SEARCH_NAME);
voter_f_m_h_name[c] = fetchVoter.getString(KEY_SEARCH_F_H_M_NAME);
voter_epic[c] = fetchVoter.getString(KEY_SEARCH_EPIC_NAME);
voter_h_no[c] = fetchVoter.getString(KEY_SEARCH_HOUSE_NUMBER);
voter_mobile[c]=fetchVoter.getString(KEY_SEARCH_MOBILE);
voter_gender[c]=fetchVoter.getString(KEY_SEARCH_GENDER);
voter_age[c]=fetchVoter.getString(KEY_SEARCH_AGE);
get_voter_dob[c]=fetchVoter.getString(KEY_SEARCH_DOB);
get_marriage_anniv[c]=fetchVoter.getString(KEY_MARRIEGE_ANNIV);
get_voter_caste_id[c]=fetchVoter.getString(KEY_GET_CASTE_ID);
get_voter_status_id[c]=fetchVoter.getString(KEY_GET_STATUS_ID);
get_voter_social_status_id[c]=fetchVoter.getString(KEY_GET_SOCIAL_STATUS);
}
CustomSearchList adapter=new CustomSearchList(this,ParseJsonData.voter_id,ParseJsonData.boothname_id,ParseJsonData.voter_name,ParseJsonData.voter_f_m_h_name,ParseJsonData.voter_epic,ParseJsonData.voter_h_no,ParseJsonData.voter_mobile,ParseJsonData.voter_age,ParseJsonData.voter_gender,ParseJsonData.get_marriage_anniv,ParseJsonData.get_voter_dob,ParseJsonData.get_voter_caste_id,ParseJsonData.get_voter_status_id,ParseJsonData.get_voter_social_status_id);
searchlist.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
// Log.e("Length Array",""+jsonArray.length());
// Log.e("Length List",""+jsonObjects.size());
} catch (JSONException e) {
e.printStackTrace();
}
}
我使用`adapter.notifyDataSetChanged但我的自定义列表不影响排序。
请建议我该做什么。
I use `adapter.notifyDataSetChanged(); but my custom list not affect the sort. Please suggest me what to do.
推荐答案
我已经排序arraylist名为ArrayList> addressaray;
使用
I have sort the arraylist named ArrayList> addressaray; add response data to arraylist using
JSONObject object = new JSONArray(s.toString());
JSONArray arr1 = new JSONArray(object.getString("data").toString()).getJSONArray(0);
for (int i = 0; i < arr1.length(); i++) {
JSONObject jsonObject = arr1.getJSONObject(i);
HashMap<String, String> data = new HashMap<String, String>();
data.put("id", jsonObject.getString("id"));
data.put("date_inspected_details", jsonObject.getString("date_inspected_details"));
addressaray.add(data);
}
adapter = new PropertiesEvaluatedFragmentAdapter(getActivity(), addressaray, getActivity().getSupportFragmentManager());
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
if(addressaray.size() > 0){
sortListView(item);
adapter.notifyDataSetChanged();
}else{
Toast.makeText(getActivity(), "No Record found.", Toast.LENGTH_SHORT).show();
}
}
private void sortListView(String option) {
switch (option) {
case "Date":
Collections.sort(addressaray, new Comparator<HashMap<String, String>>() {
final static String COMPARE_KEY = "date_inspected_details";
@Override
public int compare(HashMap<String, String> lhs,
HashMap<String, String> rhs) {
String Date1 = lhs.get(COMPARE_KEY);
String Date2 = rhs.get(COMPARE_KEY);
Log.e("Date1", Date1);
Log.e("Date2", Date2);
// Do your comparison logic here and retrn accordingly.
return Date1.compareTo(Date2);
}
});
break;
}
}JSONObject object = new JSONArray(s.toString());
JSONArray arr1 = new JSONArray(object.getString("data").toString()).getJSONArray(0);
for (int i = 0; i < arr1.length(); i++) {
JSONObject jsonObject = arr1.getJSONObject(i);
HashMap<String, String> data = new HashMap<String, String>();
data.put("id", jsonObject.getString("id"));
data.put("date_inspected_details", jsonObject.getString("date_inspected_details"));
addressaray.add(data);
}
adapter = new PropertiesEvaluatedFragmentAdapter(getActivity(), addressaray, getActivity().getSupportFragmentManager());
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
if(addressaray.size() > 0){
sortListView(item);
adapter.notifyDataSetChanged();
}else{
Toast.makeText(getActivity(), "No Record found.", Toast.LENGTH_SHORT).show();
}
}
private void sortListView(String option) {
switch (option) {
case "Date":
Collections.sort(addressaray, new Comparator<HashMap<String, String>>() {
final static String COMPARE_KEY = "date_inspected_details";
@Override
public int compare(HashMap<String, String> lhs,
HashMap<String, String> rhs) {
String Date1 = lhs.get(COMPARE_KEY);
String Date2 = rhs.get(COMPARE_KEY);
Log.e("Date1", Date1);
Log.e("Date2", Date2);
// Do your comparison logic here and retrn accordingly.
return Date1.compareTo(Date2);
}
});
break;
}
}
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