Android中ListView用法实例分析

public class A07Activity extends Activity {
 private static final String[]week="sunday","monday","tuesday","wednesday","thursday","friday","saturday"};
 private TextView tv;
 private ListView lv;
 private ArrayAdapter aa;
 private LinearLayout ll;
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    tv=new TextView(this);
    tv.setText(R.string.title);
    tv.setTextColor(Color.RED);
    lv=new ListView(this);
    lv.setBackgroundColor(Color.GREEN);
    ll=new LinearLayout(this);
    ll.setOrientation(LinearLayout.VERTICAL);
    ll.setBackgroundColor(android.graphics.Color.YELLOW);
    aa=new ArrayAdapter(A07Activity.this,R.layout.my_simple_list,week);
    lv.setAdapter(aa);
    LinearLayout.LayoutParams params01=new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    ll.addView(lv, params01);
    LinearLayout.LayoutParams params02=new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
    ll.addView(tv, params02);
    setContentView(ll);
    lv.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
  @Override
  public void onItemSelected(AdapterView<&＃63;> arg0, View arg1,
   int arg2, long arg3) {
  // TODO Auto-generated method stub
  tv.setText("你选择的是："+arg0.getSelectedItem().toString());
  }
  @Override
  public void onNothingSelected(AdapterView<&＃63;> arg0) {
  // TODO Auto-generated method stub
  }
 });
  lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
  @Override
  public void onItemClick(AdapterView<&＃63;> arg0, View arg1, int arg2,
   long arg3) {
  // TODO Auto-generated method stub
  tv.setText("你选择的是："+week[arg2]);
  }
 });
  }
}

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>