Android的可擴展列表視圖

Question

我使用擴展列表，但我想知道哪些項目是由用戶
點擊我已經使用onitemclick但它不告訴我味精位置..
我在做什麼錯？

public void funName(){ 
    File ringtones_directory = new File(DIRECTORY); 
    if (!ringtones_directory.exists()) { 
     AlertDialog.Builder ad = new AlertDialog.Builder(
       FindFilesByType.this); 
     ad.setTitle("Directory Not Found"); 
     ad.setMessage("Sorry! The ringtones directory doesn't exist."); 
     ad.setPositiveButton("OK", null); 
     ad.show(); 

     hasErrors = true; 
    } 

    if (!ringtones_directory.canRead()) { 
     AlertDialog.Builder ad = new AlertDialog.Builder(
       FindFilesByType.this); 
     ad.setTitle("Permissions"); 
     ad 
       .setMessage("Sorry! You don't have permission to list the files in that folder"); 
     ad.setPositiveButton("OK", null); 
     ad.show(); 
     hasErrors = true; 
    } else { 
     Ringtones = FindFiles(false); 

     if (Ringtones.size() < 1) { 
      AlertDialog.Builder ad = new AlertDialog.Builder(
        FindFilesByType.this); 
      ad.setTitle("Permissions"); 
      ad.setMessage("Sorry! No ringtones exists in " + DIRECTORY 
        + "."); 
      ad.setPositiveButton("OK", null); 
      ad.show(); 
      Log.e(LOG_TAG, "No ringtones were found."); 
      hasErrors = true; 
     } 

    } 

    try { 

     if (!hasErrors) { 
      // refreshList(); 
      // this.lv1.setAdapter(new ArrayAdapter<String>(
      // FindFilesByType.this, android.R.layout.test_list_item, 
      // Ringtones)); 
      ArrayAdapter<String> adapter = new ArrayAdapter<String>(
        FindFilesByType.this, android.R.layout.test_list_item, 
        Ringtones); 
      ArrayList<String> GrouppList = new ArrayList<String>(); 
      GrouppList.addAll(Ringtones); 
      ArrayList<ArrayList<Color>> colors = new ArrayList<ArrayList<Color>>(); 
      for(int i=0;i<=Ringtones.size();i++){ 
      ArrayList<Color> color = new ArrayList<Color>(); 

      color = new ArrayList<Color>(); 

      color.add(new Color(" ", "", true)); 

      colors.add(color);} 
      expListAdapter = new ColorAdapter(this, GrouppList, colors); 
     // setListAdapter(expListAdapter); 
      exlv1=(ExpandableListView) findViewById(R.id.expandableListView1); 
      this.exlv1.setAdapter(expListAdapter); 
      //exlv1.setAdapter(expListAdapter); 
      this.exlv1.setOnItemClickListener(new OnItemClickListener() { 
//THIS METHOD NOT WORKING FOR ME 
       @Override 
       public void onItemClick(AdapterView<?> aview, View v, 
         int position, long id) { 
        Toast.makeText(FindFilesByType.this, "position "+position, Toast.LENGTH_LONG).show();//THIS DOESNOT WORKING 
        // TODO Auto-generated method stub 

       } 
      }); 


     } 

    } catch (Exception e) { 
     Toast.makeText(this, "Error " + e.toString(), Toast.LENGTH_LONG) 
       .show(); 
     Log.i(LOG_TAG, e.toString()); 
    } 

Answer 1

嘗試使用此方法處理孩子被點擊時：

exlv1.setOnChildClickListener(new OnChildClickListener() { 
    public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, 
      int childPosition, long id) { 

    } 
};