Android After the custom adapter , oncreate an act which would setthe focus , the focus of the skin is yellow, how to set it ?

To achieve a TV menu , there are four lines , each line has two TextView and a ProgressBar,

is not only in the form of a custom Adapter to solve ? seemingly can not be used SimpleAdapter.

Here is the specific code to display has been displayed , the focus moves have no problem, but there is no way to do a start when he set a certain item of focus , seeking advise how to do this ? Also , set the selector is also invalid , do not know why.

public class MyAdapter extends BaseAdapter {
 
 	private LayoutInflater mInflater;
 	private List<Map<String, Object>> mData;
 	private ViewHolder holder;
 	private TextView tView;
 
 	public MyAdapter(Context context, List<Map<String, Object>> data) {
 		this.mInflater = LayoutInflater.from(context);
 		this.mData = data;
 	}
 
 	@Override
 	public int getCount() {
 		return mData.size();
 	}
 
 	@Override
 	public Object getItem(int position) {
 		return null;
 	}
 
 	@Override
 	public long getItemId(int position) {
 		// TODO Auto-generated method stub
 		return 0;
 	}
 
 	@Override
 	public View getView(int position, View convertView, ViewGroup parent) {
 		
 		if (mData.get(position).get("type") == "text only") {
 			if(convertView == null){
 				convertView = mInflater.inflate(R.layout.text,null);
 				tView = (TextView) convertView.findViewById(R.id.tvMain);
 				convertView.setTag(tView);
 			}else{
 				tView = (TextView) convertView.getTag();
 			}
 			//赋值
 			tView.setText(mData.get(position).get("title").toString());
 		} else {
 			if (convertView == null) {
 				holder = new ViewHolder();
 
 				convertView = mInflater.inflate(R.layout.pcsettings, null);
 				holder.setTvTitle((TextView) convertView
 						.findViewById(R.id.tvTitle));
 				holder.setPbProgressBar((ProgressBar) convertView
 						.findViewById(R.id.progressBar));
 				holder.setTvValue((TextView) convertView
 						.findViewById(R.id.tvValue));
 
 				convertView.setTag(holder);
 			} else {
 				holder = (ViewHolder) convertView.getTag();
 			}
 			// 给每一行赋值
 			holder.getTvTitle().setText(
 					mData.get(position).get("title").toString());
 			holder.getPbProgressBar().setProgress(
 					Integer.parseInt(mData.get(position).get("position")
 							.toString()));
 			holder.getTvValue().setText(
 					mData.get(position).get("position").toString());
 
 		}
 		return convertView;
 	}
 
 }

public class PCSettings extends ListActivity {
 	private List<Map<String, Object>> mData;
 	//自定义的Adapter类
 	private MyAdapter adapter;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
 		this.getWindow().setLayout(800, 400);
 		mData = getData();
         	adapter = new MyAdapter(this,mData);	
 		setListAdapter(adapter);
 
 		getListView().setOnItemClickListener(listener);
 		
 	}
 	
 	AdapterView.OnItemClickListener listener = new AdapterView.OnItemClickListener() {
 
 		@Override
 		public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
 				long arg3) {
 			System.out.println(mData.get(arg2).get("title"));
 		}
 
 	};
 	
 	private List<Map<String, Object>> getData() {
 		List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
 		Map<String, Object> map = new HashMap<String, Object>();
 		map.put("type", "text only");
 		map.put("title","自动调整" );
 		list.add(map);
 		map = new HashMap<String, Object>();
 		map.put("type", null);
 		map.put("title","hpos" );
 		map.put("position", 60);
 		list.add(map);
 		map = new HashMap<String, Object>();
 		map.put("type", null);
 		map.put("title","vpos" );
 		map.put("position", 40);
 		list.add(map);
 		map = new HashMap<String, Object>();
 		map.put("type", null);
 		map.put("title","phase" );
 		map.put("position", 30);
 		list.add(map);
 		map = new HashMap<String, Object>();
 		map.put("type", null);
 		map.put("title","clock" );
 		map.put("position", 20);
 		list.add(map);
 		return list;
 	}
 
 	
 	@Override
 	public boolean onKeyDown(int keyCode, KeyEvent event) {
 		switch (keyCode) {
 		case KeyEvent.KEYCODE_J:
 			keyCode = KeyEvent.KEYCODE_DPAD_UP;
 			return getListView().onKeyDown(keyCode, event);
 		case KeyEvent.KEYCODE_K:
 			keyCode = KeyEvent.KEYCODE_DPAD_DOWN;
 			return getListView().onKeyDown(keyCode, event);
 		default:
 			break;
 		}
 		return super.onKeyDown(keyCode, event);
 	}
 }

------ Solution ------------------------------------- -------
constructor inside plus positional parameters , new MyAdapter (context, list, int); int parameters via adapter class which implements the function you want
----- - Solution --------------------------------------------
getView the position parameter is the number of rows , you judge the value of position , set the color is not on the line ?
if (position == ***)
convertView.setBackgroundColor (0xffff00);
------ reference ----------------------------- ----------
thank two , has been resolved.