Android PopupWindowは拡張可能なリストビューを表示しませんでしたか？

Question

ポップアップウィンドウにExpandable ListViewが表示されませんでした。JSON APIの解析にHasmap配列リストを使用しました。完全に私は値を取得し、ArrayList.Please私にこの問題を解決するために割り当てられます。なぜPopWindowはExpandableListViewを表示しなかったのですか。

public class UserProfile_Add_Education extends AppCompatActivity implements View.OnClickListener{ 
private EditText edTxt_region,edTxt_orgnicat,edTxt_qualifprov,edTxt_titlequalifi,edTxt_ncea,edTxt_elaboratequalif,edTxt_qualifcat, 
      edTxt_qualifsubcat,edTxt_startdate,edTxt_endate,edTxt_edu_status; 

    private NestedScrollView nscrl_addeducation; 
    private Calendar mCalendar; 
    String upkeyvalues=""; 
    private DisplayMetrics outMetrics; 
    private boolean isPortrait; 
    private int screenHeight; 
    private int screenWidth; 
    PopupWindow mPopUpMaster; 

    private PopupWindow mpopup; 

    ArrayList<HashMap<String, String>> hs_EduStatus_ArrLst = new ArrayList<HashMap<String, String>>(); 
    HashMap<String,List<String>> hashMap = new HashMap<String, List<String>>(); 
    List<String>list = new ArrayList<String>(); 

    ExpandableListAdapter expandableListAdapter; 
    List<String> expandableListTitle; 
    HashMap<String, List<String>> expandableListDetail= new HashMap<String, List<String>>(); 

    private ProgressDialog progress; 
    final int HAND_EDU =1; 
    final int HAND_ORG_SUB =2; 
    final int HAND_QLFY_SUB =3; 
    private int qulifyCatId,regionalId,orgId,qulifyProviderId; 
    ExpandableListView expListView; 
    CheckBox chkChild,chkParent; 
    Button btnSubmit; 
    TextView txtVw_selected; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_profile_education_add_layout); 
     getViewCasting(); 
    } 

    @Override 
    public void onClick(View v) { 
     Intent redirectIntent; 
     switch(v.getId()){ 
     case R.id.edTxt_qualifsubcat: 
        try { 

         PopupwithExpndLst(); 

        } catch (Exception e) {e.printStackTrace();} 
       break; 

     } 
    } 

    public void PopupwithExpndLst() 
    { 

      try { 
       // inflating popup layout 
       View popUpView = getLayoutInflater().inflate(R.layout.pw_explist, null); 
       // Creation of popup 
       mpopup = new PopupWindow(popUpView, LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, true); 
       // Displaying popup 
       mpopup.showAsDropDown(popUpView, 0, 0); 
       // get the listview 
       expListView = (ExpandableListView) mpopup.getContentView().findViewById(R.id.lstExpList); 
       expandableListTitle = new ArrayList<String>(expandableListDetail.keySet()); 
       expandableListAdapter = new CustomExpandableListAdapter(this, expandableListTitle, expandableListDetail); 
       expListView.setAdapter(expandableListAdapter); 

      } catch (Exception ex) { Log.i("Test", "Error is " + ex.getMessage());} 

    } 

    private class QualificationSubCat extends AsyncTask<Void, Void, Integer>{ 
     String mQulifyCatId= String.valueOf(qulifyCatId); 
     @Override 
     protected void onPreExecute() { 
      progress = new ProgressDialog(UserProfile_Add_Education.this); 
      progress.setMessage("Loading ..."); 
      progress.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
      progress.setIndeterminate(true); 
      progress.setCancelable(false); 
      progress.setProgress(0); 
      progress.show(); 
     } 

     @Override 
     protected Integer doInBackground(Void... params) { 
      try { 
       List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1); 
       nameValuePairs.add(new BasicNameValuePair("category_id", mQulifyCatId)); 
       NetworkAccessLayer networkAccessLayer = new NetworkAccessLayer(); 
       String jsonStr = networkAccessLayer.partnerSubCat(BusinessAccessLayer.SERVER_IP + "youth/getqualificationsubcategory", NetworkAccessLayer.POST, nameValuePairs,userToken); 
       mStatus = jsonStr; 
      } catch (Exception e) {e.printStackTrace();} 


      return 0; 
     } 

     @Override 
     protected void onPostExecute(Integer result) { 
      super.onPostExecute(result); 
      progress.dismiss(); 
      mHandler.sendEmptyMessage(HAND_QLFY_SUB); 

     } 
    } 



    protected Handler mHandler = new Handler(new Handler.Callback() { 

     @Override 
     public boolean handleMessage(android.os.Message msg) { 
      switch (msg.what) { 

       case HAND_QLFY_SUB: 
        try { 
         if (mStatus != null) { 
          try { 
           JSONObject c = new JSONObject(mStatus); 
           String tempStr = c.getString("status").toString(); 
           if (tempStr.equalsIgnoreCase("1") || tempStr.equalsIgnoreCase("true")) { 
            loadSubQualifationArrayValues(mStatus); 
           } 
          } catch (Exception e) { 
           e.printStackTrace(); 
          } 


         } else { 
          NetworkAccessLayer.showSnackBar(nscrl_addeducation, "No data found"); 
         } 

        } catch (NullPointerException e) { 
         e.printStackTrace(); 
        } 
        break;} 
      return false; 
     } 


    }); 

    private void loadSubQualifationArrayValues(String responseStatus) throws JSONException { 
     expandableListDetail.clear(); 
     list.clear(); 
     JSONObject jsonObject = new JSONObject(responseStatus); 
     String status = jsonObject.getString("status"); 
     JSONObject dataObject = jsonObject.getJSONObject("data"); 
     JSONArray jsonArray = dataObject.getJSONArray("subcategory_ids"); 
     for (int i=0;i<jsonArray.length();i++){ 
      JSONObject jsonObject1 = jsonArray.getJSONObject(i); 
      JSONArray jsonArray1 = jsonObject1.getJSONArray("subsubcategory"); 
      for (int j=0;j<jsonArray1.length();j++){ 
       JSONObject jsonObject2 = jsonArray1.getJSONObject(j); 
       list.add(jsonObject2.getString("subcategory"));} 
      expandableListDetail.put(jsonObject1.getString("subcategory"),list); 
      System.out.println("Qfy_SubCat Size:"+expandableListDetail.size()); 
     } 

    } 

} 

Answer 1

私はこの質問に答えています。ここでは、拡張可能リストビューでAPI値を表示するために必要な機能を追加しています。結果を得るためにListとHashMapを使用しました。私はこのような問題に直面しているような人にとっては助けになることを願っています。ありがとうございました。

必要な変数、メソッドと以下のクラス、

public class CustomExpandableListAdapter extends BaseExpandableListAdapter { 

    private Context context; 
    private List<String> expandableListTitle; 
    private HashMap<String, List<String>> expandableListDetail; 

    public CustomExpandableListAdapter(Context context, List<String> expandableListTitle, 
             HashMap<String, List<String>> expandableListDetail) { 
     this.context = context; 
     this.expandableListTitle = expandableListTitle; 
     this.expandableListDetail = expandableListDetail; 
    } 

    @Override 
    public Object getChild(int listPosition, int expandedListPosition) { 
     return this.expandableListDetail.get(this.expandableListTitle.get(listPosition)) 
       .get(expandedListPosition); 
    } 

    @Override 
    public long getChildId(int listPosition, int expandedListPosition) { 
     return expandedListPosition; 
    } 

    @Override 
    public View getChildView(int listPosition, final int expandedListPosition, 
          boolean isLastChild, View convertView, ViewGroup parent) { 
     final String expandedListText = (String) getChild(listPosition, expandedListPosition); 
     if (convertView == null) { 
      LayoutInflater layoutInflater = (LayoutInflater) this.context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = layoutInflater.inflate(R.layout.pw_list_item, null); 
     } 
     TextView expandedListTextView = (TextView) convertView 
       .findViewById(R.id.expandedListItem); 
     expandedListTextView.setText(expandedListText); 
     return convertView; 
    } 

    @Override 
    public int getChildrenCount(int listPosition) { 
     return this.expandableListDetail.get(this.expandableListTitle.get(listPosition)) 
       .size(); 
    } 

    @Override 
    public Object getGroup(int listPosition) { 
     return this.expandableListTitle.get(listPosition); 
    } 

    @Override 
    public int getGroupCount() { 
     return this.expandableListTitle.size(); 
    } 

    @Override 
    public long getGroupId(int listPosition) { 
     return listPosition; 
    } 

    @Override 
    public View getGroupView(int listPosition, boolean isExpanded, 
          View convertView, ViewGroup parent) { 
     String listTitle = (String) getGroup(listPosition); 
     if (convertView == null) { 
      LayoutInflater layoutInflater = (LayoutInflater) this.context. 
        getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = layoutInflater.inflate(R.layout.pw_list_group, null); 
     } 
     TextView listTitleTextView = (TextView) convertView.findViewById(R.id.listTitle); 
     //listTitleTextView.setTypeface(null, Typeface.BOLD); 
     listTitleTextView.setText(listTitle); 
     listTitleTextView.setCompoundDrawablesWithIntrinsicBounds(0, 0, isExpanded ? R.drawable.ic_expand_less_24dp : R.drawable.ic_expand_more_24dp, 0); 
     /*listTitleTextView.setCompoundDrawablesWithIntrinsicBounds(0, 0, isExpanded ? 0 : android.R.drawable.ic_menu_more, 0); 
     listTitleTextView.setText(getGroup(listPosition).toString());*/ 
     return convertView; 
    } 

    @Override 
    public boolean hasStableIds() { 
     return false; 
    } 

    @Override 
    public boolean isChildSelectable(int listPosition, int expandedListPosition) { 
     return true; 
    } 
} 

おかげで再び

public class ExpList_PopWindowsAns extends AppCompatActivity implements View.OnClickListener { 

//required DataHandling components 
    List<String> list = new ArrayList<String>(); 
    ExpandableListAdapter expandableListAdapter; 
    List<String> expandableListTitle; 
    HashMap<String, List<String>> expandableListDetail = new HashMap<String, List<String>>(); 
//oncreate 
@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_layout); 
     EditText edTxt_qualifsubcat = (EditText) findViewById(R.id.edTxt_qualifsubcat); 
     edTxt_qualifsubcat.setOnclickListener(this); 
     getDisplayDetails(); 
     if (getScreenWidth() > getScreenHeight()) { 
      isPortrait = false; 
     } else if (getScreenHeight() > getScreenWidth()) { 
      isPortrait = true; 
     } 


    } 
//Display details 

protected void getDisplayDetails() { 

     Display display = getWindowManager().getDefaultDisplay(); 
     outMetrics = new DisplayMetrics(); 
     display.getMetrics(outMetrics); 
     screenHeight = outMetrics.heightPixels; 
     screenWidth = outMetrics.widthPixels; 
    } 

    public int getWidthByPercentage(double i) { 

     int result = (int) ((i * screenWidth)/100); 
     return result; 
    } 

    protected float getScreenWidth() { 
     return screenWidth; 
    } 

    protected float getScreenHeight() { 
     return screenHeight; 
    } 

    public int getHeightByPercentage(double d) { 

     int result = (int) ((d * screenHeight)/100); 
     return result; 
    } 

    @Override 
    public void onClick(View v) { 
     Intent redirectIntent; 
     switch (v.getId()) { 
      case R.id.edTxt_qualifsubcat: 

       if (expandableListDetail.size() > 0) { 

        try { 

         PopupwithExpndLst(); 

        } catch (Exception e) { 
         e.printStackTrace(); 

        } 
       } else { 
        //Do your Stuff 
       } 
       break; 
      } 
     } 

//Structue the Popwindow with Expandable List 
//Calculate the width and height 
public void PopupwithExpndLst() { 
     if (expandableListDetail.size() > 0) { 
      try { 
       // inflating popup layout 
       View popUpView = getLayoutInflater().inflate(R.layout.pw_explist, null); 
       // Creation of popup 
       mpopup = new PopupWindow(popUpView, isPortrait ? getHeightByPercentage(32) : getWidthByPercentage(50), isPortrait ? getHeightByPercentage(40) : getWidthByPercentage(30), true); 
       // Displaying popup 
       mpopup.showAtLocation(popUpView, Gravity.LEFT, getHeightByPercentage(5), getHeightByPercentage(100)); 
       // get the listview 
       expListView = (ExpandableListView) mpopup.getContentView().findViewById(R.id.lstExpList); 
       expandableListTitle = new ArrayList<String>(expandableListDetail.keySet()); 
       expandableListAdapter = new CustomExpandableListAdapter(this, expandableListTitle, expandableListDetail); 
       expListView.setAdapter(expandableListAdapter); 

       expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() { 
        @Override 
        public boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) { 

         //To set the Text values in Editext 
         edTxt_qualifsubcat.setText(expandableListDetail.get(expandableListTitle.get(groupPosition)).get(childPosition)); 
         //To set the Id for API purpose 
         qulifySubCatId = childPosition; 
         return false; 
        } 
       }); 

      } catch (Exception ex) { 
       Log.i("Test", "Error is " + ex.getMessage()); 
      } 
     } else { 
      //Do your Stuff 
     } 
    } 

//Parse the JSON API using the Following Steps After Sucessfull AsyncTask API Call 
private void loadSubQualifationArrayValues(String responseStatus) throws JSONException { 
     expandableListDetail.clear();//clear HashMap for avoiding the extra adding information 
     list.clear();//clear list for avoiding the extra adding information 
     JSONObject jsonObject = new JSONObject(responseStatus); 
     String status = jsonObject.getString("status");//place your api keys 
     JSONObject dataObject = jsonObject.getJSONObject("data");//place your api keys 
     JSONArray jsonArray = dataObject.getJSONArray("subcategory_ids");//place your api keys 

     for (int i = 0; i < jsonArray.length(); i++) { 
      list = new ArrayList<String>(); 

      JSONObject jsonObject1 = jsonArray.getJSONObject(i); 

      JSONArray jsonArray1 = jsonObject1.getJSONArray("subsubcategory");//place your api keys 

      for (int j = 0; j < jsonArray1.length(); j++) { 

       JSONObject jsonObject2 = jsonArray1.getJSONObject(j); 
       list.add(jsonObject2.getString("subcategory"));//place your api keys 
      } 

      expandableListDetail.put(jsonObject1.getString("subcategory"), list);//place your api keys 

      System.out.println("Qfy_SubCat Size:" + expandableListDetail.size()); 
     } 

    } 

} 

CustomExpandableListAdapter。私はコメントを期待しています。