Question

目前,我有以下改编者来拟定我的清单:

    public class MyListAdapter extends ArrayAdapter<String> {

    private Context mContext;

    public MyListAdapter(Context context, int resource, int textViewResourceId,String[] objects) {
        super(context, resource, textViewResourceId, objects);
        // TODO Auto-generated constructor stub
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        Drawable cross = getResources().getDrawable(R.drawable.cross);
        Drawable arrow = getResources().getDrawable(R.drawable.arrow);

        View row = convertView;

         if(row == null){
          LayoutInflater inflater= getLayoutInflater();
          row = inflater.inflate(R.layout.list_view_format2, parent, false);
         }

         TextView text =(TextView)row.findViewById(R.id.list_content2);
         text.setText(list[position]);

         ImageView image = (ImageView)row.findViewById(R.id.rightArrow);
         TextView check = (TextView)row.findViewById(R.id.checker);

         if (item != null && text.getText().toString().equals(item)){
             text.setBackgroundDrawable(cross);
             image.setImageDrawable(arrow);
             check.setText("cross");
         }


         return row;

    }
}

R.layout.list_view_format2: a custom ListView format. It contains an ImageView and a TextView R.id.list_content2: *Id of the Text View within R.id.list_view_format2*

如果搜查取得成功,我就试图改变儿童的某些部分。然而,在我提出或提出清单时,并非仅仅修改了一名儿童,而是修改了其他儿童的布局。我并没有确切了解正在发生的情况。是否有人要解释?

Answer 1

我是这样说的。我只得把其他人 null倒。我在其他方面这样做。现在,它完美地运作。

  @Override
   public View getView(int position, View convertView, ViewGroup parent) {
         // TODO Auto-generated method stub
         Drawable cross = getResources().getDrawable(R.drawable.cross);
         Drawable arrow = getResources().getDrawable(R.drawable.arrow);

     View row = convertView;

     if(row == null){
      LayoutInflater inflater= getLayoutInflater();
      row = inflater.inflate(R.layout.list_view_format2, parent, false);
     }

     TextView text =(TextView)row.findViewById(R.id.list_content2);
     text.setText(list[position]);

     ImageView image = (ImageView)row.findViewById(R.id.rightArrow);
     TextView check = (TextView)row.findViewById(R.id.checker);

     if (item != null && text.getText().toString().equals(item)){
         text.setBackgroundDrawable(cross);
         image.setImageDrawable(arrow);
         check.setText("cross");
     }



   else {    
      text.setBackgroundDrawable(null);
      image.setImageDrawable(null);
      check.setText("none");
   }


  return row;

}

Answer 2

ArrayAdatper 是一个非常有限的类别,试图将 ,其中有几个特点使你更容易做些什么。 http://developer.android.com/vis/android/widget/SimpleAdapter.ViewBinder.html“rel=” 简单的Adapter.ViewBinder,允许你根据基本数据对清单项目作出广泛修改。在这里,你只能把某些清单项目看上去不同于其他项目。

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