java - 如何将参数传递给父类(super class)？

Question

我正在尝试自定义 ListView 示例。其代码如下，

//适配器

public class CustomList extends ArrayAdapter<String>
{

    private final Activity context;
    private final String[] web; 
    private final Integer[] imageId;

    public CustomList ( Activity context, String[] web, Integer[] imageId )
    {
        super ( context, R.layout.list_single, web );
        this.context = context; 
        this.web = web; 
        this.imageId = imageId;
    }

    @Override
    public View getView ( int position, View view, ViewGroup parent )
    {
        LayoutInflater inflater = context.getLayoutInflater();
        View rowView = inflater.inflate( R.layout.list_single, null, true );

        TextView txtTitle = ( TextView ) rowView.findViewById( R.id.txt ); 
        ImageView imageView = ( ImageView ) rowView.findViewById( R.id.img );
        txtTitle.setText( web[position] );
        imageView.setImageResource(imageId[position] );
        return rowView;
    }
}

// Activity 文件

public class MainActivity extends Activity 
{
    ListView list; 
    String[] web = { "Google Plus","Twitter","Windows","Bing","iTunes","WordPress","Drupal" };
    Integer[] imageId = { R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5,R.drawable.image6,R.drawable.image7 }; 

    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        CustomList adapter = new CustomList ( MainActivity.this, web, imageId );
        list = ( ListView ) findViewById( R.id.list );
        list.setAdapter(adapter);
    }
}

考虑 Activity 代码中的以下行，

CustomList 适配器 = new CustomList (MainActivity.this, web, imageId );

现在我不想将这些数组参数传递到适配器代码中，那么我需要在适配器代码中进行哪些更改？

我在适配器中尝试如下，

    String[] web = { "Google Plus","Twitter","Windows","Bing","iTunes","WordPress","Drupal" };
    public CustomList ( Activity context )
    {
        super ( context, R.layout.list_single, web ); // error at this line
        this.context = context; 
    }

但是它给了我编译时错误在显式调用构造函数时无法引用实例字段 web。

Answer 1

将此行更改为

private static final String[] web = new String[] { "Google Plus","Twitter","Windows","Bing","iTunes","WordPress","Drupal" };

它应该可以工作。