Android实现读取SD卡下所有TXT文件名并用listView显示出来的方法

package com.zxl;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public class Txt_sdkaActivity extends Activity {
  private ListView lv;
  ArrayList name;
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    lv = (ListView) findViewById(R.id.lv);
    name = new ArrayList();
    if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
      File path = Environment.getExternalStorageDirectory();// 获得SD卡路径
      // File path = new File("/mnt/sdcard/");
      File[] files = path.listFiles();// 读取
      getFileName(files);
    }
    SimpleAdapter adapter = new SimpleAdapter(this, name, R.layout.pes, new String[] { "Name" }, new int[] { R.id.txt_tv });
    lv.setAdapter(adapter);
    for (int i = 0; i 

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

  
  
  

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