如何使帶JSON數組的ExpandableListView

我想製作一個ExpandableListView，它可以從服務器（JSON數組）的響應中爲其組及其子組獲取數據。這是我的JSON：如何使帶JSON數組的ExpandableListView

[ 
    { 
     " 
     "begdate": "23/07/2013", 
     "nama": "OPTIK INTERNASIONAL", 
     "img_id": 2, 
     "alamat": "Jl. Nasional No 23 Meulaboh", 
     "enddate": "23/07/2015", 
    }, 
    { 

     "begdate": "01/05/2013", 
     "nama": "EL JOHN SMOKING LOUNGE", 
     "img_id": 3, 
     "alamat": "Bandara Sultan Iskandar Muda, Banda Aceh", 
     "enddate": "30/04/2014", 
    }, 
    { 
     "begdate": "09/11/2012", 
     "nama": "ESPRESSO COFFE", 
     "img_id": 2 
     "alamat": "JL. SOEKARNO HATTA No. 16-17, Simpang Dodi", 
     "enddate": "09/11/2014", 
    }, 
    { 

     "begdate": "16/03/2012", 
     "nama": "LUZI PERFUME", 
     "img_id": 3, 
     "alamat": "JL. MATA IE KETAPANG II", 
     "enddate": "16/03/2014", 
    } 
    ]

「alamat」和非農產品市場準入」將成爲集團‘begdate’和‘結束日期’將成爲他們的孩子，我有如下教程從這裏：http://en.wikicode.org/index.php/Custom_ExpandableListView但是當我實現它，我？遇到錯誤有沒有錯我的代碼，這是我的logcat：

08-16 15:18:34.541: E/AndroidRuntime(416): FATAL EXCEPTION: main 
08-16 15:18:34.541: E/AndroidRuntime(416): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 0 
08-16 15:18:34.541: E/AndroidRuntime(416): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257) 
08-16 15:18:34.541: E/AndroidRuntime(416): at java.util.ArrayList.get(ArrayList.java:311) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.example.belajaraccordion.TerbaruSimasCard.fetchResponse(TerbaruSimasCard.java:106) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.example.belajaraccordion.TerbaruSimasCard.access$1(TerbaruSimasCard.java:85) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.example.belajaraccordion.TerbaruSimasCard$TerbaruAsyncTask.onPostExecute(TerbaruSimasCard.java:77) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.example.belajaraccordion.TerbaruSimasCard$TerbaruAsyncTask.onPostExecute(TerbaruSimasCard.java:1) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.os.AsyncTask.finish(AsyncTask.java:417) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.os.AsyncTask.access$300(AsyncTask.java:127) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.os.Handler.dispatchMessage(Handler.java:99) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.os.Looper.loop(Looper.java:123) 
08-16 15:18:34.541: E/AndroidRuntime(416): at android.app.ActivityThread.main(ActivityThread.java:3683) 
08-16 15:18:34.541: E/AndroidRuntime(416): at java.lang.reflect.Method.invokeNative(Native Method) 
08-16 15:18:34.541: E/AndroidRuntime(416): at java.lang.reflect.Method.invoke(Method.java:507) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
08-16 15:18:34.541: E/AndroidRuntime(416): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
08-16 15:18:34.541: E/AndroidRuntime(416): at dalvik.system.NativeStart.main(Native Method)

這是我的代碼：

TerbaruSimasCard.java

public class TerbaruSimasCard extends Activity { 

    private ProgressDialog dialog; 
    private ArrayList<TerbaruModel>ListTerbaru; 
    private ArrayList<ArrayList<ArrayList<ChildTerbaru>>> ListChildTerbaru; 
    ListView list; 
    String phone1, begdate1, enddate1,img_id1; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

      super.onCreate(savedInstanceState); 
      setContentView(R.layout.terbarusimascard); 
      ListTerbaru= new ArrayList<TerbaruModel>(); 
      ListChildTerbaru= new ArrayList<ArrayList<ArrayList<ChildTerbaru>>>(); 
      new TerbaruAsyncTask().execute(); 
    } 
    public class TerbaruAsyncTask extends AsyncTask<Void, Void, String> { 
     String url = ("http://www.domain.com/123"); 

     public TerbaruAsyncTask() { 
      this.url=url; 
     } 

     protected void onPreExecute(){ 
      super.onPreExecute(); 
      dialog = ProgressDialog.show(TerbaruSimasCard.this,"", "melakukan pengambilan data..."); 
     } 
     @Override 
     protected String doInBackground(Void... params) { 
      String result = ""; 
      try { 
       result= Connection.get(url); 
      } catch (Exception e){ 
       result = ""; 
       Log.d("test", e.getMessage()); 
      } 
      return result; 
     } 

    @Override 
    protected void onPostExecute (String result){ 
     super.onPostExecute(result); 
     fetchResponse(result.replace("\n","").trim()); 
     dialog.dismiss(); 

    } 


    } 

private void fetchResponse (String result){ 
    if (!result.equals("")){ 
     try { 
      JSONArray jsonArray = new JSONArray(result); 
      TerbaruModel LT=null; 
      ChildTerbaru CT=null; 
      for (int i= 0; i < jsonArray.length(); i++) { 
       JSONObject jsonObject= jsonArray.getJSONObject (i); 

       LT= new TerbaruModel (
         jsonObject.optString("img_id"), 
         jsonObject.optString("nama"), 
         jsonObject.optString("alamat") 
         ); 
       ListTerbaru.add(LT); 

       for (int j= 0; j <jsonArray.length(); j++) { 
        CT= new ChildTerbaru (
        jsonObject.optString("begdate"), 
        jsonObject.optString("enddate") 
        ); 
        ListChildTerbaru.get(i).get(j).add(CT); 

       } 
       ExpandableListView list = (ExpandableListView) findViewById(R.id.ExpandableListView01); 

       TerbaruAdapter adapter = new TerbaruAdapter(this, ListTerbaru,ListChildTerbaru); 
       list.setAdapter(adapter); 

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

這是我TerbaruAdapter.java：

public class TerbaruAdapter extends BaseExpandableListAdapter{ 
    Context context; 
    ArrayList<TerbaruModel>ListTerbaru; 
    ArrayList<ArrayList<ArrayList<ChildTerbaru>>> ListChildTerbaru; 
    int count; 

    public TerbaruAdapter (Context context, ArrayList<TerbaruModel>ListTerbaru,ArrayList<ArrayList<ArrayList<ChildTerbaru>>> ListChildTerbaru){ 
     this.context=context; 
     this.ListTerbaru=ListTerbaru; 
     this.ListChildTerbaru=ListChildTerbaru; 
//  this.count=ListTerbaru.size(); 
//  this.count=ListChildTerbaru.size(); 
    } 
    @Override 
    public boolean areAllItemsEnabled() 
    { 
     return true; 
    } 


    @Override 
    public ArrayList<ChildTerbaru> getChild(int groupPosition, int childPosition) { 
     return ListChildTerbaru.get(groupPosition).get(childPosition); 
    } 

    @Override 
    public long getChildId(int groupPosition, int childPosition) { 
     return childPosition; 
    } 

    @Override 
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild,View convertView, ViewGroup parent) { 

     ChildTerbaru ListChildTerbaru = (ChildTerbaru) ((ArrayList<ChildTerbaru>)getChild(groupPosition, childPosition)).get(0); 
     ViewHolder holder= null; 

     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.expandablelistview_child, null); 

      holder=new ViewHolder(); 
      holder.begdate1=(TextView)convertView.findViewById(R.id.beg_date); 
      holder.enddate1=(TextView)convertView.findViewById(R.id.end_date); 
     } 
     else{ 
      holder=(ViewHolder)convertView.getTag(); 
     } 

     holder.begdate1.setText(ListChildTerbaru.getBegDate()); 
     holder.enddate1.setText(ListChildTerbaru.getEndDate()); 

     return convertView; 
    } 
    @Override 
    public int getChildrenCount(int groupPosition) { 
     return ListChildTerbaru.get(groupPosition).size(); 
    } 

    @Override 
    public TerbaruModel getGroup(int groupPosition) { 
     return ListTerbaru.get(groupPosition); 
    } 

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

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

    @Override 
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { 

     TerbaruModel ListTerbaru = (TerbaruModel) getGroup(groupPosition); 
     ViewHolder holder= null; 
     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.expandablelistview_group, null); 

      holder=new ViewHolder(); 
      holder.nama=(TextView)convertView.findViewById(R.id.name); 
      holder.alamat=(TextView)convertView.findViewById(R.id.adress); 
     } 

     else{ 
      holder=(ViewHolder)convertView.getTag(); 
     } 

     holder.nama.setText(ListTerbaru.getNama()); 
     holder.alamat.setText(ListTerbaru.getAlamat()); 

     return convertView; 
    } 

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

    @Override 
    public boolean isChildSelectable(int arg0, int arg1) { 
     return true; 
    } 


    static class ViewHolder{ 
     TextView begdate1, enddate1,nama, alamat, imageid; 
    } 

}

我不知道從哪裏是我的錯，是不是因爲我錯了，在我的解析JSON作爲波紋管？

for (int i= 0; i < jsonArray.length(); i++) { 
      JSONObject jsonObject= jsonArray.getJSONObject (i); 

      LT= new TerbaruModel (
        jsonObject.optString("img_id"), 
        jsonObject.optString("nama"), 
        jsonObject.optString("alamat") 
        ); 
      ListTerbaru.add(LT); 

      for (int j= 0; j <jsonArray.length(); j++) { 
       CT= new ChildTerbaru (
       jsonObject.optString("begdate"), 
       jsonObject.optString("enddate") 
       ); 
       ListChildTerbaru.get(i).get(j).add(CT); 

      }

還是有什麼不對嗎？我希望有人能告訴我哪裏是我的錯......謝謝

來源

2013-08-16 Aoyama Nanami

凡本JSON是img_id？能否請您分享網址json –

@AshaSoman請參閱我的更新 –

好吧，讓我檢查它 –

修改您的適配器

public class TerbaruAdapter extends BaseExpandableListAdapter{ 
    Context context; 
    ArrayList<TerbaruModel>ListTerbaru; 
    ArrayList<ArrayList<ChildTerbaru>> ListChildTerbaru; 
    int count; 

    public TerbaruAdapter (Context context, ArrayList<TerbaruModel>ListTerbaru,ArrayList<ArrayList<ChildTerbaru>> ListChildTerbaru){ 
     this.context=context; 
     this.ListTerbaru=ListTerbaru; 
     this.ListChildTerbaru=ListChildTerbaru; 
//  this.count=ListTerbaru.size(); 
//  this.count=ListChildTerbaru.size(); 
    } 
    @Override 
    public boolean areAllItemsEnabled() 
    { 
     return true; 
    } 


    @Override 
    public ChildTerbaru getChild(int groupPosition, int childPosition) { 
     return ListChildTerbaru.get(groupPosition).get(childPosition); 
    } 

    @Override 
    public long getChildId(int groupPosition, int childPosition) { 
     return childPosition; 
    } 

    @Override 
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild,View convertView, ViewGroup parent) { 

     ChildTerbaru childTerbaru = getChild(groupPosition, childPosition); 
     ViewHolder holder= null; 

     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.expandablelistview_child, null); 

      holder=new ViewHolder(); 
      holder.begdate1=(TextView)convertView.findViewById(R.id.beg_date); 
      holder.enddate1=(TextView)convertView.findViewById(R.id.end_date); 
      convertView.setTag(holder); 

     } 
     else{ 
      holder=(ViewHolder)convertView.getTag(); 
     } 

     holder.begdate1.setText(childTerbaru.getBegDate()); 
     holder.enddate1.setText(childTerbaru.getEndDate()); 

     return convertView; 
    } 
    @Override 
    public int getChildrenCount(int groupPosition) { 
     return ListChildTerbaru.get(groupPosition).size(); 
    } 

    @Override 
    public TerbaruModel getGroup(int groupPosition) { 
     return ListTerbaru.get(groupPosition); 
    } 

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

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

    @Override 
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { 

     TerbaruModel terbaruModel = (TerbaruModel) getGroup(groupPosition); 
     ViewHolder holder= null; 
     if (convertView == null) { 
      LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = infalInflater.inflate(R.layout.expandablelistview_group, null); 

      holder=new ViewHolder(); 
      holder.nama=(TextView)convertView.findViewById(R.id.name); 
      holder.alamat=(TextView)convertView.findViewById(R.id.address); 
      convertView.setTag(holder); 

     } 

     else{ 
      holder=(ViewHolder)convertView.getTag(); 
     } 

     holder.nama.setText(terbaruModel.getNama()); 
     holder.alamat.setText(terbaruModel.getAlamat()); 

     return convertView; 
    } 

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

    @Override 
    public boolean isChildSelectable(int arg0, int arg1) { 
     return true; 
    } 


    static class ViewHolder{ 
     TextView begdate1, enddate1,nama, alamat, imageid; 
    } 

}

而且你的活動

public class TerbaruSimasCard extends Activity { 

    private ProgressDialog dialog; 
    private ArrayList<TerbaruModel> ListTerbaru = null; 
    private ArrayList<ChildTerbaru> ListChildTerbaru = null; 
    private ArrayList<ArrayList<ChildTerbaru>> ListChildXXXXXXXXX = null; 
    ListView list; 
    String phone1, begdate1, enddate1, img_id1; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.sample); 
     ListTerbaru = new ArrayList<TerbaruModel>(); 
     ListChildTerbaru = new ArrayList<ChildTerbaru>();//ArrayList<ArrayList<ChildTerbaru>>>(); 
     ListChildXXXXXXXXX = new ArrayList<ArrayList<ChildTerbaru>>(); 
     new TerbaruAsyncTask().execute(); 
    } 

    public class TerbaruAsyncTask extends AsyncTask<Void, Void, String> { 
     String url = ("http:www.domain.com/123"); 

     public TerbaruAsyncTask() { 
      this.url = url; 
     } 

     protected void onPreExecute() { 
      super.onPreExecute(); 
      dialog = ProgressDialog.show(TerbaruSimasCard.this, "", 
        "melakukan pengambilan data..."); 
     } 

     @Override 
     protected String doInBackground(Void... params) { 
      String result = ""; 
      try { 
       result = Connection.get(url); 
      } catch (Exception e) { 
       result = ""; 
       Log.d("test", e.getMessage()); 
      } 
      return result; 
     } 

     @Override 
     protected void onPostExecute(String result) { 
      super.onPostExecute(result); 
      fetchResponse(result.replace("\n", "").trim()); 
      dialog.dismiss(); 
     } 

    } 

    private void fetchResponse(String result) { 
     if (!result.equals("")) { 
      try { 
       JSONArray jsonArray = new JSONArray(result); 
       TerbaruModel LT = null; 
       ChildTerbaru CT = null; 
       for (int i = 0; i < jsonArray.length(); i++) { 
        ListChildTerbaru = new ArrayList<ChildTerbaru>(); 
        JSONObject jsonObject = jsonArray.getJSONObject(i); 

        LT = new TerbaruModel(jsonObject.optString("img_id"), 
          jsonObject.optString("nama"), 
          jsonObject.optString("alamat")); 
        ListTerbaru.add(LT); 

        //for (int j = 0; j < jsonArray.length(); j++) { 
         CT = new ChildTerbaru(jsonObject.optString("begdate"), 
           jsonObject.optString("enddate")); 
         ListChildTerbaru.add(CT);//get(i).get(i).add(CT); 

        //} 
         ListChildXXXXXXXXX.add(ListChildTerbaru); 
        ExpandableListView list = (ExpandableListView) findViewById(R.id.expandablelistView); 

        TerbaruAdapter adapter = new TerbaruAdapter(this,ListTerbaru, ListChildXXXXXXXXX); 
        list.setAdapter(adapter); 

       } 

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

來源

2013-08-16 10:27:59

我很抱歉遲到的迴應，我沒有閱讀它，因爲它的週末..謝謝你的幫助GBU :) –

@AoyamaNanami我堅持相同 –

如何使帶JSON數組的ExpandableListView

回答

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