Android如何遍历特定目录下所有文件

 private boolean deleteLastFromFloder(String path) {    boolean success = false;    try {      ArrayList<File> images = new ArrayList<File>();      getFiles(images, path);      File latestSavedImage = images.get(0);      if (latestSavedImage.exists()) {        for (int i = 1; i < images.size(); i++) {          File nextFile = images.get(i);          if (nextFile.lastModified() > latestSavedImage.lastModified()) {            latestSavedImage = nextFile;          }        }        Log.e("brady", "images = " + latestSavedImage.getAbsolutePath());        success = latestSavedImage.delete();      }    } catch (Exception e) {      e.printStackTrace();    }    return success;  }  private void getFiles(ArrayList<File> fileList, String path) {    File[] allFiles = new File(path).listFiles();    for (int i = 0; i < allFiles.length; i++) {      File file = allFiles[i];      if (file.isFile()) {        fileList.add(file);      } else if (!file.getAbsolutePath().contains(".thumnail")) {        getFiles(fileList, file.getAbsolutePath());      }    }  }

package com.once; import java.io.File;import java.util.ArrayList;import java.util.LinkedList;/** * 文件夹遍历 * @author once * */public class DirTraversal {     //no recursion  public static LinkedList<File> listLinkedFiles(String strPath) {    LinkedList<File> list = new LinkedList<File>();    File dir = new File(strPath);    File file = dir.listFiles();    for (int i = 0; i < file.length; i++) {      if (file.isDirectory())        list.add(file);      else        System.out.println(file.getAbsolutePath());    }    File tmp;    while (!list.isEmpty()) {      tmp = (File) list.removeFirst();      if (tmp.isDirectory()) {        file = tmp.listFiles();        if (file == null)          continue;        for (int i = 0; i < file.length; i++) {          if (file.isDirectory())            list.add(file);          else            System.out.println(file.getAbsolutePath());        }      } else {        System.out.println(tmp.getAbsolutePath());      }    }    return list;  }      //recursion  public static ArrayList<File> listFiles(String strPath) {    return refreshFileList(strPath);  }   public static ArrayList<File> refreshFileList(String strPath) {    ArrayList<File> filelist = new ArrayList<File>();    File dir = new File(strPath);    File files = dir.listFiles();     if (files == null)      return null;    for (int i = 0; i < files.length; i++) {      if (files.isDirectory()) {        refreshFileList(files.getAbsolutePath());      } else {        if(files.getName().toLowerCase().endsWith("zip"))          filelist.add(files);      }    }    return filelist;  }}