Java 自定义ListView从Android Eclipse中的SqliteDatabase值设置背景图像

假设我创建了一个自定义列表视图来显示图像图标、标题和副标题。3视图的值将从sqlite数据库查询。 这是我的main.xml

所以，场景是，我想为

 -> wordTitle TextView is equal to KEY_NAME,
 -> wordSub TextView is equal to KEY_SUBTITLE, and to set the background image of
 -> word_icon ImageView is equal to KEY_CODE value 

所以listView看起来像

 ====================================
  =            ListView              =
  ====================================
  = word_icon = wordTitle = wordSub  =
  ====================================
  =   p.png   = Sam_Tit1  = Sam_Sub1 =
  =   x.png   = Sam_Tit2  = Sam_Sub2 =
  =   n.png   = Sam_Tit3  = Sam_Sub3 =
  ====================================

现在，这是我的主要活动，我将其命名为AndroidListViewCursorAdaptorActivity.Java

所以，一切都很好，一切正常，我设置了WordTitle和WordSub的文本，并将其绑定到我的ListView。 现在，我的问题是，我在设置ImageView的背景图像时遇到了一些问题，即word_图标。我想设置word_图标的背景图像 取决于按键代码值。我不知道该怎么做。我尝试用此代码更新我的mainActivity

        private CountriesDbAdapter dbHelper;
        private SimpleCursorAdapter dataAdapter;
        private ImageView im;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            dbHelper = new CountriesDbAdapter(this);
            dbHelper.open();
            displayListView(); // I call this function to set an Adapter for my ListView
        }

        private void displayListView() {
            Cursor cursor = dbHelper.fetchAllCountries();
            // The desired columns to be bound
            String[] columns = new String[] { 
                CountriesDbAdapter.KEY_CODE, //Trying to fetch the KEY_CODE column
                CountriesDbAdapter.KEY_NAME, 
                CountriesDbAdapter.KEY_SUBTITLE };

            // the XML defined views which the data will be bound to
            int[] to = new int[] { 
                R.id.word_icon, //Trying to Put it here
                R.id.wordTitle, 
                R.id.wordSub };
            // create the adapter using the cursor pointing to the desired data
            // as well as the layout information
            dataAdapter = new SimpleCursorAdapter(this, R.layout.custom,
                    cursor, columns, to, 0);
            ListView listView = (ListView) findViewById(R.id.listView1);
            // Assign adapter to ListView
            listView.setAdapter(dataAdapter);
        }

但是运气不好，这段代码不起作用，正如我预期的，因为我知道我需要设置背景图像

im.setBackgroundImage(R.Drawable.something_image);

但我有个主意，需要有人帮忙。 就这些，我希望有人能帮我。如果有的话，请你澄清一下。

---

提前谢谢

您需要编写自定义适配器谢谢您的回答，我遇到了一些麻烦，因为我只是一个新手。。。由于链接演示只是如何将listview的自定义适配器与imageView一起使用，因此我无法将其同步到我自己的，因为没有像我这样的sqlite数据库。。

 ====================================
  =            ListView              =
  ====================================
  = word_icon = wordTitle = wordSub  =
  ====================================
  =   p.png   = Sam_Tit1  = Sam_Sub1 =
  =   x.png   = Sam_Tit2  = Sam_Sub2 =
  =   n.png   = Sam_Tit3  = Sam_Sub3 =
  ====================================

public class AndroidListViewCursorAdaptorActivity extends Activity {

        private CountriesDbAdapter dbHelper;
        private SimpleCursorAdapter dataAdapter;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            dbHelper = new CountriesDbAdapter(this);
            dbHelper.open();
            displayListView(); // I call this function to set an Adapter for my ListView
        }

        private void displayListView() {
            Cursor cursor = dbHelper.fetchAllCountries();
            // The desired columns to be bound
            String[] columns = new String[] { CountriesDbAdapter.KEY_NAME, CountriesDbAdapter.KEY_SUBTITLE };
            // the XML defined views which the data will be bound to
            int[] to = new int[] { R.id.wordTitle, R.id.wordSub };
            // create the adapter using the cursor pointing to the desired data
            // as well as the layout information
            dataAdapter = new SimpleCursorAdapter(this, R.layout.custom,
                    cursor, columns, to, 0);
            ListView listView = (ListView) findViewById(R.id.listView1);
            // Assign adapter to ListView
            listView.setAdapter(dataAdapter);
        }
    }

        private CountriesDbAdapter dbHelper;
        private SimpleCursorAdapter dataAdapter;
        private ImageView im;

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            dbHelper = new CountriesDbAdapter(this);
            dbHelper.open();
            displayListView(); // I call this function to set an Adapter for my ListView
        }

        private void displayListView() {
            Cursor cursor = dbHelper.fetchAllCountries();
            // The desired columns to be bound
            String[] columns = new String[] { 
                CountriesDbAdapter.KEY_CODE, //Trying to fetch the KEY_CODE column
                CountriesDbAdapter.KEY_NAME, 
                CountriesDbAdapter.KEY_SUBTITLE };

            // the XML defined views which the data will be bound to
            int[] to = new int[] { 
                R.id.word_icon, //Trying to Put it here
                R.id.wordTitle, 
                R.id.wordSub };
            // create the adapter using the cursor pointing to the desired data
            // as well as the layout information
            dataAdapter = new SimpleCursorAdapter(this, R.layout.custom,
                    cursor, columns, to, 0);
            ListView listView = (ListView) findViewById(R.id.listView1);
            // Assign adapter to ListView
            listView.setAdapter(dataAdapter);
        }

im.setBackgroundImage(R.Drawable.something_image);