排序JSONArray后，自定义列表视图没有改变？
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【中文标题】排序JSONArray后，自定义列表视图没有改变？【英文标题】：After sorting JSONArray,Custom list view not changed? 【发布时间】：2017-02-18 12:26:21 【问题描述】：我正在对 JSONArray 进行排序并在自定义列表视图中显示它们，但排序后数据在自定义列表视图中没有更改。
这是我的 fab 按钮代码，用于选择要执行的排序：
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 按钮中进行选择后，单击我对 json 数组进行排序。 下面是解析 json 数组的代码：
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会影响排序。 请建议我该怎么做。
【问题讨论】：
您不应该对 ListView 或 Adapter 进行排序。您需要将已排序的数组传递给适配器。 你的意思是先解析数组数据，然后设置为适配器... 对数据集进行排序并在适配器上调用notifyDataSetChanged。
@K Neeraj Lal 你能举个例子吗
使用 POJO 类，使用 GSON 库解析 JSON 数据，使用 Comparator 排序并在适配器上调用 notifyDataSetChanged 以反映 UI 上的更改。
【参考方案1】：
在将数据设置为Listview之前，您应该使用java中的比较器类对数据进行排序。
您创建一个模型类，其中包含您想要的所有变量（名称、booth_id 等）并将每个对象存储到 ArrayList 中。
Collections.sort(ArrayListObject,new NameComparator());
例子
class NameComparator implements Comparator
public int compare(Object o1,Object o2)
YourClassName s1=(YourClassName )o1;
YourClassName s2=(YourClassName )o2;
return s1.name.compareTo(s2.name);
【讨论】：
你能提供一个例子吗..因为我到处搜索...？/【参考方案2】：在我的例子中，我从 JSONParser 类中得到了 homeList(ArrayList of model 'Home') 所以在 setAdapter 之前
Collections.sort(homeList, new Comparator<Home>()
public int compare(Home emp1, Home emp2)
int price1 = emp1.getPrice();
int price2 = emp2.getPrice();
return Integer.compare(price1, price2);
);
Adapter adapter = new Adapter(getActivity(),homeList);
listView.setadapter(adapter);
所以这将首先对整个数组列表进行排序，然后我们需要设置适配器。
试试这个，我想这会对你有所帮助。
【讨论】：
谢谢回答让我试试..我会让你知道 但我没有在我的适配器类中使用 get 和 set 我认为您必须将 Model 与 getter setter 一起使用，这将不那么复杂，并且对您来说更可靠..【参考方案3】：而不是为其字段创建一个带有字符串数组的数据对象。为 JsonArray 的每个元素创建一个对象。 为 JsonArray 中的对象创建一个列表。 在您的自定义适配器中传递该列表。 将 listview 适配器设置为自定义适配器。
现在，只要您想按任何字段对数据进行排序。只需使用 Java 集合比较器，或者您可以编写自己的自定义比较器。
之后只需在适配器上调用 notifyDataSetChanged()。
编辑 -
您可以像下面这样创建模型 SearchItem
class SearchItem
private String voterId;
private String boothNameId;
private String searchName;
private String houseNumber;
private String gender;
public void setVoterId(String voterId)
this.voterId = voterId;
public String getVoterId()
return voterId;
......................(Add as many fields you want and their corresponding getter and setter methods)
您的 Json 解析类可以这样修改（您必须填充 SearchItem 类的所有字段。
class ParseJsonData
public static ArrayList<SearchList> parseSearchresult(String jsonResponse)
try
JSONObject searchData = new JSONObject(jsonResponse);
JSONArray searchArray=searchData.getJSONArray(SEARCH_VOTER_ARRAY);
ArrayList<SearchItem> searchList = new ArrayList<SearchItem>();
for(int index = 0; index < searchArray.length(); index++)
JSONObject searchItem = searchArray.get(index);
SearchItem item = new SearchItem();
item.setVoterId(searchItem.optString(KEY_VOTER_ID, null);
item.setBoothNameId(searchItem.optString(KEY_BOOTHNAME_ID, null);
item.setSearchName(searchItem.optString(KEY_SEARCH_NAME, null);
item.setHouseNumber(searchItem.optString(KEY_SEARCH_HOUSE_NUMBER, null);
item.setGender(searchItem.optString(KEY_SEARCH_GENDER, null);
searchList.add(item);
catch (JSONException e)
e.printStackTrace();
return searchList;
现在您可以按如下方式创建自己的自定义适配器
class CustomSearchList extends BaseAdapter
ArrayList<SearchItem> mSearchList;
Context mContext;
public CustomSearchList(Context context, ArrayList<SearchItem> searchList)
mContext = context;
mSearchList = searchList;
..........................(Implement methods for BaseAdapter or other methods you want to write)
这里 searchList 作为引用传递，因此该列表中的任何更新以及对适配器的通知调用都将反映更改。
您的列表视图类可以这样修改。 parseSearchList() 方法返回一个包含所有搜索列表的数组列表。
private void getList(String json)
ArrayList<SearchItem> searchList = ParseJsonData.parseSearchresult(json);
CustomSearchList adapter = new CustomSearchList(this, searchList);
searchlistView.setAdapter(adapter);
mBtn.setOnClickListener(this, new OnClickListener()
@Override
public void onClick(....)
//Suppose when some button click happens for sorting
Collections.sort(searchList, <yourCustomComparator>);
notifyDataSetChanged();
);
如果您可以将 searchList 作为成员变量而不是本地变量，那就更好了。
【讨论】：
您必须对适配器中已传递的数组列表进行排序。检查我上面的例子。这种方法可能有效，但效率低下，不可取。【参考方案4】：是的，我认为您必须使用模型类。这是 onPostExecute 的示例。
@Override
protected void onPostExecute(String s)
super.onPostExecute(s);
pd.dismiss();
try
JSONObject object = new JSONObject(s.toString());
YourModelNameList = new ArrayList<>();
if (object.getString("status").equalsIgnoreCase("true"))
JSONArray array = object.getJSONArray("data");
for (int i = 0; i < array.length(); i++)
JSONObject jsonProduct = array.getJSONObject(i);
YourModelName home = new Home();
String special = jsonProduct.getString("special_price");
home.setId(jsonProduct.getString("product_id"));
home.setName(jsonProduct.getString("product_name"));
home.setPrice(jsonProduct.getString("price"));
YourModelArrayList.add(home);
Collections.sort(YourModelArrayList, new Comparator<YourModelName>()
public int compare(YourModelName emp1, YourModelName emp2)
int price1 = emp1.getPrice();
int price2 = emp2.getPrice();
return Integer.compare(price1, price2);
);
adapter = new YourModelArrayListAdapter(getActivity(), YourModelArrayList);
recyclerView.setAdapter(adapter);
catch (JSONException e)
e.printStackTrace();
如果这对你有帮助，试试这个。谢谢。
【讨论】：
不，这将对模型类的整个数组列表进行排序。例如：您将未排序（常规数组）放入数组中。现在您必须为 collections.sort 方法编写代码。这将对您的整个模型类数组列表进行排序。【参考方案5】：我已经对名为 ArrayList 的数组列表进行了排序> addressaray; 使用
将响应数据添加到arraylistJSONObject 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;
【讨论】：
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