Question

我有以下意见:

<ListView android:id="@android:id/list" android:layout_width="fill_parent" android:divider="@drawable/line"
        android:layout_height="fill_parent" android:background="@drawable/bg"/>

但我想为每个增长项目确定背景。当我确定底栖财产时,我改变了整个清单的背景,而不仅仅是每一行。

How can I set the drawable background for each item in the row? I have tried everything. The only thing I can change is the android:divider drawable shown between the rows. Thanks in advance!

Answer 1

you need to specify a costum view layout for your rows, like a LinearLayout or so. in this layout you specify the background color or image or what ever.

later in your list adapter in the getView() function you load this layout with the layout inflater and returbn this view.

Answer 2

*Use Custom Adapter.

First create Custom Adapter class and set this to fill listView

ex: 

class CusAdapter extends BaseAdapter
 {

  private Context mContext;

  public ImageAdapter(Context c)
  {

   mContext = c;

  }

  public int getCount()

  {

   return 10;
  }

  public Object getItem(int position)

  {

   return null;

  }

  public long getItemId(int position)
  {

   return 0;

  }

  // create a new ImageView for each item referenced by the Adapter

  public View getView(int position, View convertView, ViewGroup parent)
  {

           //create a layout for listView

           LinearLayout lLayout = new LinearLayout(this);

       lLayout.setOrientation(LinearLayout.VERTICAL);

       lLayout.setLayoutParams(new LayoutParams(
           LayoutParams.MATCH_PARENT,

       LayoutParams.MATCH_PARENT));


         //check position and set background

            if(position%2==0)
            {

                   lLayout.setBackgroundResource(R.id.bckResource1);

               } 
            else

                   lLayout.setBackgroundResource(R.id.bckResource2);

        return lLayout;

   }

}

 after this set this adapter to fill listview

 listView.setAdpater(new cusAdapter(this));*

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