Android如何遍历特定目录下所有文件

第一个案例为大家分享了Android遍历特定目录下所有文件，包含子目录的，并删除最新创建的。

 private boolean deleteLastFromFloder(String path) {
    boolean success = false;
    try {
      ArrayList images = new ArrayList();
      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 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());
      }
    }
  }

第二个案例介绍了文件夹遍历Android代码，供大家参考，具体内容如下

package com.once;
 
import java.io.File;
import java.util.ArrayList;
import java.util.linkedList;

public class DirTraversal {
   
  //no recursion
  public static linkedList listlinkedFiles(String strPath) {
    linkedList list = new linkedList();
    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 listFiles(String strPath) {
    return refreshFileList(strPath);
  }
 
  public static ArrayList refreshFileList(String strPath) {
    ArrayList filelist = new ArrayList();
    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;
  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。