123123

import android.app.Activity;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.*;
import android.widget.AdapterView.OnItemClickListener;

public class ListViewTest extends ListActivity  {
    //注意这里ListViewTest类不是扩展自Acitvity，而是扩展自ListAcitivty
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setListAdapter(new ArrayAdapter(this, R.layout.main, COUNTRIES));

        ListView lv = getListView();
        lv.setTextFilterEnabled(true);

        lv.setOnItemClickListener(new OnItemClickListener() {
          public void onItemClick(AdapterView parent, View view,
              int position, long id) {
            // When clicked, show a toast with the TextView text
            Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
                Toast.LENGTH_SHORT).show();
          }
        });
    }
    static final String[] COUNTRIES = new String[] {
	    "1", "2", "3", "4", "5",
	    "6", "7", "8", "9", "10",
	    "11", "12", "13", "14", "15",
	    "16", "17", "18", "19", "20",
	    "21", "22", "23", "24"
	  };
}