如何使用onChildClickListener提取expandablelistview中的子值？

Question

我有一個可擴展的列表視圖，它是動態生成的，子列表包含另一組值，我需要在子列表上設置一個onChildClickListener，以便通過每個數據中保存的特定URL傳遞一個Web intent子列表。因此，我需要訪問每個OnChildClickListener事件上的子列表的值。

請幫忙!! PS：如果需要進一步解釋或代碼，請發表評論。

@Override 
    protected void onPostExecute(JSONObject result) 
    { 
     dialog.dismiss(); 

     onPostCreate(new Bundle()); 
     List<Map<String, String>> groupData = new ArrayList<Map<String, String>>(); 
     List<List<Map<String, String>>> childData = new ArrayList<List<Map<String, String>>>(); 

     try 
     { 
      JSONObject data = result.getJSONObject("data"); 

      else 
      { 
       JSONArray jarray = data.getJSONArray("data"); 

       for (int i = 0; i < jarray.length(); i++) 
       { 
        JSONObject obj = (JSONObject) jarray.get(i); 

        String taskId = obj.getString("taskId");  
        String taskSub = obj.getString("taskSubject"); 



        String v1= "Task Subject :"+taskSub; 

        Map<String, String> curGroupMap = new HashMap<String, String>(); 
        groupData.add(curGroupMap); 
        curGroupMap.put(TAG,v1); 

        List<Map<String, String>> children = new ArrayList<Map<String, String>>();  

         Map<String, String> curChildMap = new HashMap<String, String>(); 
         children.add(curChildMap); 
         curChildMap.put(TAG,"    "+taskId); 
         childData.add(children); 

     } 
       //ADAPTER SETTINGS 
        mAdapter = new SimpleExpandableListAdapter(   
          Search.this,    
          groupData,  
          android.R.layout.simple_expandable_list_item_1,  
          new String[] { TAG },  
          new int[] { android.R.id.text1}, 

          childData,    
          android.R.layout.simple_expandable_list_item_2,  
          new String[] { TAG },  
          new int[] { android.R.id.text1 } 
          );  
        setListAdapter(mAdapter); 
        getExpandableListView().setOnChildClickListener(Search.this);   
     } 
     } 
     catch (JSONException je) 
     { 
      je.printStackTrace(); 
      Log.d(TAG, "Error: " + je.getMessage()); 
     }  
    } 
} 

     @Override 
     public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, 
       int childPosition, long id) 
     {    
      Uri webpage = Uri.parse("URL"+taskId); 

       //I want to add the taskId i am extracting in my dynamic expandable list in the URL, therefore each URL will be unique according to the taskId. 

      Intent webIntent = new Intent(Intent.ACTION_VIEW, webpage); 
      PackageManager packageManager = getPackageManager(); 
      List<ResolveInfo> activities = packageManager.queryIntentActivities(webIntent, 0); 
      boolean isIntentSafe = activities.size() > 0; 
       if (isIntentSafe) 
       { 
       startActivity(webIntent); 
       } 

      return true; 
     } 

Answer 1

添加監聽孩子點擊收聽

getExpandableListView().setOnChildClickListener(this); 

的點擊監聽器添加代碼。

@Override 
public boolean onChildClick(ExpandableListView parent, View v, int groupPos, int childPos, long id) { 
    // use groupPosition and childPosition to get the item data from adapter. 
    return true; 
} 

適配器

@Override 
//gets the name of each item 
public Object getChild(int i, int i1) {   
    return dataList.get(i).getArrayChildren().get(i1); 
}