【发布时间】:2010-04-04 19:17:32
【问题描述】:
我正在尝试实现一个 ListView,它由包含左侧 View 和右侧 TextView 的行组成。我希望能够根据它在 ListView 中的位置来更改第一个视图的背景颜色。以下是我目前所拥有的,但似乎没有任何原因。
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);
}
}
感谢您的任何意见,如果您有任何问题,请随时提问!
谢谢, 抢
【问题讨论】:
标签: android