Group Position allways 0

所以我一直在纠缠这个问题至少5个小时，我不能包裹我的头。我有可扩展的列表视图和groupposition总是返回为0.因此。我从中获取数据的HashMap始终以一个值开始。我loged出childposition和groupposition在“getChildView”，但它永诺0Group Position allways 0

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

      CategoryItem x = (CategoryItem)getChild(groupPosition, childPosition); 
      Log.d("EGILS",Integer.toString(groupPosition)+" "+Integer.toString(childPosition)); 
      LayoutInflater layoutInflater = (LayoutInflater)this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      convertView = layoutInflater.inflate(R.layout.child_row, null); 

      TextView name = (TextView)convertView.findViewById(R.id.child_Virsraksts); 
      TextView price = (TextView)convertView.findViewById(R.id.child_Cena); 
      name.setText(x.getItem_name()); 
      price.setText("€"+Double.toString(GV.round(x.getPrice_notax(),2))); 

     } 
     //return secondlvl; 
     return convertView; 

    }

这是即时通讯让我childView出来的功能开始，即getChild

@Override 
    public Object getChild(int groupPosition, int childPosition) { 
    Log.d("GINTS2", Integer.toString(childPosition) + " " + this.categoryItems.get(this.subcategories.get(groupPosition).getId()).get(childPosition).getItem_name()); 

     return (Object)this.categoryItems.get(this.subcategories.get(groupPosition).getId()).get(childPosition); 
    }

有趣的是，当后我注销在GET childview groupposition我得到八方0

//1st GROUP PRESSED 
11-06 02:50:41.551 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 0 

11-06 02:50:41.561 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 1 

11-06 02:50:41.566 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 2 

11-06 02:50:41.571 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 3 
//2nd GROUP PRESSED 
11-06 02:50:47.052 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 0 
//3rd GROUP PRESSED 
11-06 02:50:50.533 19665-19665/com.martinssinka.projektaizmaksas D/EGILS﹕ 0 0

已注销GetGroupView（组位置）

11-06 12:07:17.609 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 0 - 
11-06 12:07:17.624 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 1 - 
11-06 12:07:17.624 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 2 - 
11-06 12:07:17.676 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 0 - 
11-06 12:07:17.676 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 1 - 
11-06 12:07:17.676 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 2 - 
11-06 12:07:17.677 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 0 - 
11-06 12:07:17.677 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 1 - 
11-06 12:07:17.683 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 2 - 
11-06 12:07:17.689 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 0 - 
11-06 12:07:17.691 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 1 - 
11-06 12:07:17.691 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 2 - 
11-06 12:07:17.725 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 0 - 
11-06 12:07:17.726 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 1 - 
11-06 12:07:17.726 30767-30767/com.martinssinka.projektaizmaksas D/GROUPPo﹕ 2 -

来源

2015-11-06 Silv3rgo

你的'getGroupCount'返回什么值？ – njzk2

你不认为convertView不为空 – njzk2

@ njzk2 \t \t \t 它返回3.'return this.subcategories.size（）;'如果convertView是问题它甚至不会显示我的日志。 – Silv3rgo

所以我所做的就是创建新项目并将所有类和布局复制到新项目中。像魅力一样工作。

不知道发生了什么，我认为这可能是一个小故障。

来源

2015-11-16 11:24:00 Silv3rgo

Group Position allways 0

回答

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