ViewHolder无法创建ListView，无法将“inflater布局”存储为ViewHolder的一部分

以下是我尝试创建列表视图：此代码适用于我的MainActivity，并且该应用根本无法工作。我试图将我的布局通货膨胀包括到我的查看持有人，并打破了一切。我把我当前的代码（这是行不通的）和最后一点（当试图包含Layout到View Holder之前）。此外，这是我改变的唯一部分，所以问题在这里。请告诉我我做错了什么？有没有办法将Layout添加到ViewHolder？谢谢。ViewHolder无法创建ListView，无法将“inflater布局”存储为ViewHolder的一部分

public View getView(final int i, View view, ViewGroup viewGroup) { 
    View rowView = view; 
    ViewHolder viewHolder; 

    /*using HolderView to reuse view*/ 
    if (rowView == null){ 
     viewHolder = new ViewHolder(); 

     //inflating the layout Once and then storing it in rowView for reusing 
     rowView = inflater.inflate(R.layout.row_super_class, null); 

     // configure view holder and store it for reusing 
     viewHolder.largeText = (TextView) view.findViewById(R.id.largeText); 
     viewHolder.smallText = (TextView) view.findViewById(R.id.smallText); 

     rowView.setTag(viewHolder); 
    } else{ 
     viewHolder = (ViewHolder)rowView.getTag(); 
    }

电流（不工作）代码：

public View getView(final int i, View view, ViewGroup viewGroup) { 
    View rowView = view; 
    ViewHolder viewHolder = new ViewHolder(); 

    /*using HolderView to reuse view*/ 
    if (rowView == null){ 

     //inflating the layout Once and then storing it in rowView for reusing 
     rowView = inflater.inflate(R.layout.row_super_class, null); 

     // configure view holder and store it for reusing 
     viewHolder.largeText = (TextView) view.findViewById(R.id.largeText); 
     viewHolder.smallText = (TextView) view.findViewById(R.id.smallText); 
    } 

    /*using if condition to populate each row with correct information*/ 
    if (i >= 0) { 

     viewHolder.largeText.setText(name[i]); 
     viewHolder.smallText.setText(quantity[i]); 

     view.setClickable(true); 
     view.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 

       Toast.makeText(context.getApplicationContext(), name[i] + " * " + quantity[i], Toast.LENGTH_SHORT).show(); 

       Intent goToNextActivity = new Intent(context, ClassActivity.class); 
       goToNextActivity.putExtra("superClass_name", name[i]); 
       context.startActivity(goToNextActivity); 
      } 
     }); 
    } 
    return view; 
}

这是最后一点，当我的应用程序的工作基础上的答案（还不行）

更新代码没有任何问题：

public View getView(final int i, View view, ViewGroup viewGroup) { 

    /*using HolderView to reuse view*/ 

    ViewHolder viewHolder = new ViewHolder(); 

    view = inflater.inflate(R.layout.row_super_class, null); 

    viewHolder.largeText = (TextView) view.findViewById(R.id.largeText); 
    viewHolder.smallText = (TextView) view.findViewById(R.id.smallText); 

    /*using if condition to populate each row with correct information*/ 
    if (i >= 0) { 

     viewHolder.largeText.setText(name[i]); 
     viewHolder.smallText.setText(quantity[i]); 

     view.setClickable(true); 
     view.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 

       Toast.makeText(context.getApplicationContext(), name[i] + " * " + quantity[i], Toast.LENGTH_SHORT).show(); 

       Intent goToNextActivity = new Intent(context, ClassActivity.class); 
       goToNextActivity.putExtra("superClass_name", name[i]); 
       context.startActivity(goToNextActivity); 
      } 
     }); 
    } 
    return view; 
} 

/*using viewHolder to cache row view */ 
public static class ViewHolder { 
    public TextView largeText; 
    public TextView smallText; 
}

我搜索了几个小时，但c无法找到答案。

来源

2016-09-14 Dr. Salah aldin Mahmoodi nejad

初始化'viewHolder = new ViewHolder（）;'当view是null时'if（rowView == null）{' – Piyush

感谢您的回答，在这里使用它们是对我的问题的回答： 1）需要初始化我的viewHolder Inside if语句。 2）需要改变getView从视图返回到rowView。 3）需要将我的getView中的所有提到的视图更改为rowView。

来源

2016-09-14 12:46:15

ViewHolder无法创建ListView，无法将“inflater布局”存储为ViewHolder的一部分

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