创建ListView和设定的图的背景颜色的每一行中 [英] Creating a ListView and setting the background color of a view in each row

问题描述

我想实现的是由包含在左侧后面一个TextView来的，正确的视图行的ListView。我希望能够改变的基础上在ListView它的位置上的第一视图的背景颜色。下面是我在这一点上，但它似乎并没有因任何事。

I am trying to implement a ListView that is composed of rows that contain a View on the left followed by a TextView to the right of that. I want to be able to change the background color of the first View based on it's position in the ListView. Below is what I have at this point but it doesn't seem to due anything.

public class Routes extends ListActivity {
    String[] ROUTES;
    TextView selection;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ROUTES = getResources().getStringArray(R.array.routes);

        setContentView(R.layout.routes);
        setListAdapter(new IconicAdapter());
        selection=(TextView)findViewById(R.id.selection);

    }

    public void onListItemClick(ListView parent, View v, int position, long id) {
        selection.setText(ROUTES[position]);

    }

    class IconicAdapter extends ArrayAdapter<String> {
        IconicAdapter() {
            super(Routes.this, R.layout.row, R.id.label, ROUTES);
        }
    }

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

        LayoutInflater inflater = getLayoutInflater();
        View row = inflater.inflate(R.layout.row, parent, false);
        TextView label = (TextView) row.findViewById(R.id.label);

        label.setText(ROUTES[position]);

        View icon = (View) row.findViewById(R.id.icon);

        switch(position){

        case 0:
            icon.setBackgroundColor(R.color.Red);
            break;
        case 1:
            icon.setBackgroundColor(R.color.Red);
            break;
        case 2:
            icon.setBackgroundColor(R.color.Green);
            break;
        case 3:
            icon.setBackgroundColor(R.color.Green);
            break;
        case 4:
            icon.setBackgroundColor(R.color.Blue);
            break;
        case 5:
            icon.setBackgroundColor(R.color.Blue);
            break;
        }

        return(row);
    }

}

任何输入AP preciated，如果您有任何问题，请不要犹豫，问！

Any input is appreciated and if you have any questions don't hesitate to ask!

谢谢，
罗布

推荐答案

发现两个问题：

1）getView（）方法是不是我创造所以它甚至没有被调用的内部类。

1) The getView() method was not within the inner class that I had created so it was not even being called.

2），而不是调用setBackgroundColor（）的，我需要调用setBackgroundResource（）。

2) Instead of calling setBackgroundColor(), I needed to call setBackgroundResource().

这是现在的工作。

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