Android文件管理器FileManager

读取存储空间下的文件并以ListView的形式显示出来。

package com.zms.filemanager;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.text.TextUtils;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.AdapterView;import android.widget.EditText;import android.widget.ListView;import android.widget.SimpleAdapter;import android.widget.Toast;import java.io.File;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class Main extends Activity implements AdapterView.OnItemClickListener,AdapterView.OnItemLongClickListener {private ListView fileView;private String path = "/sdcard";// 文件路径private List<Map<String, Object>> items;private SimpleAdapter adapter;private File backFile = null;private String currentPath = "/sdcard";private boolean flag;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);setTitle("文件管理");fileView = (ListView) findViewById(R.id.filelist);listDir(path);}/*** 动态绑定文件信息到listview上** @param path*/private void listDir(String path) {items = bindList(path);// if(items!=null){adapter = new SimpleAdapter(this, items, R.layout.file_row,new String[]{"name", "path", "img"}, new int[]{R.id.name,R.id.desc, R.id.img});fileView.setAdapter(adapter);fileView.setOnItemClickListener(this);fileView.setOnItemLongClickListener(this);fileView.setSelection(0);// }}/*** 返回所有文件目录信息** @param path* @return*/private List<Map<String, Object>> bindList(String path) {File[] files = new File(path).listFiles();// if(files!=null){List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(files.length);Map<String, Object> root = new HashMap<String, Object>();root.put("name", "/sdcard");root.put("img", R.drawable.folder);root.put("path", "根目录");list.add(root);Map<String, Object> pmap = new HashMap<String, Object>();pmap.put("name", "返回");pmap.put("img", R.drawable.back);pmap.put("path", "上级目录");list.add(pmap);for (File file : files) {Map<String, Object> map = new HashMap<String, Object>();if (file.isDirectory()) {map.put("img", R.drawable.folder);} else {map.put("img", R.drawable.doc);}map.put("name", file.getName());map.put("path", file.getPath());list.add(map);}return list;/** } return null; */}@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int position,long arg3) {if (position == 0) {// 返回到/sdcard目录path = "/sdcard";listDir(path);} else if (position == 1) {// 返回上一级目录toParent();} else {if (items != null) {path = (String) items.get(position).get("path");File file = new File(path);if (file.canRead() && file.canExecute() && file.isDirectory()) {listDir(path);} else {openFile(file);Toast.makeText(this, "呵呵", Toast.LENGTH_SHORT).show();}}}backFile = new File(path);}private void toParent() {// 回到父目录File file = new File(path);File parent = file.getParentFile();if (parent == null) {listDir(path);} else {path = parent.getAbsolutePath();listDir(path);}}/*** 文件操作提示** @param id*/private void myNewDialog(int id) {AlertDialog.Builder builder = new AlertDialog.Builder(this);switch (id) {case 0:LayoutInflater factory = LayoutInflater.from(this);final View textEntryView = factory.inflate(R.layout.filedialog,null);builder.setTitle("创建文件夹");builder.setView(textEntryView);builder.setPositiveButton("确定", new CreateDialog(textEntryView));builder.setNegativeButton("取消", null);break;case 1:LayoutInflater factory2 = LayoutInflater.from(this);final View textEntryView2 = factory2.inflate(R.layout.filedialog,null);builder.setTitle("重命名文件");builder.setView(textEntryView2);builder.setPositiveButton("确定", new RenameDialog(textEntryView2));// <span// style="font-family:Arial,Helvetica,sans-serif;">builder.setNegativeButton("取消",// null);</span>builder.setNegativeButton("取消", null);break;case 2:builder.setTitle("确定要删除吗？");builder.setPositiveButton("确定", new DeleteDialog());builder.setNegativeButton("取消", null);break;}builder.create().show();}private void mySortDialog(int id) { // 排序AlertDialog.Builder builder = new AlertDialog.Builder(this);switch (id) {case 0:// 按名称排序LayoutInflater factory = LayoutInflater.from(this);final View textEntryView = factory.inflate(R.layout.filedialog,null);builder.setTitle("创建文件夹");builder.setView(textEntryView);builder.setPositiveButton("确定", new CreateDialog(textEntryView));builder.setNegativeButton("取消", null);break;case 1:// 按时间排序LayoutInflater factory2 = LayoutInflater.from(this);final View textEntryView2 = factory2.inflate(R.layout.filedialog,null);builder.setTitle("重命名文件");builder.setView(textEntryView2);builder.setPositiveButton("确定", new RenameDialog(textEntryView2));// <span// style="font-family:Arial,Helvetica,sans-serif;">builder.setNegativeButton("取消",// null);</span>builder.setNegativeButton("取消", null);break;case 2:builder.setTitle("确定要删除吗？");builder.setPositiveButton("确定", new DeleteDialog());builder.setNegativeButton("取消", null);break;}builder.create().show();}/*** 根据路径删除指定的目录或文件，，无论存在与否** @param sPath 要删除的目录或文件* @return 删除成功返回 true，否则返回 false。*/public boolean DeleteFolder(String sPath) {flag = false;File file = new File(sPath);// 判断目录或文件是否存在if (!file.exists()) { // 不存在返回 falsereturn flag;} else {// 判断是否为文件if (file.isFile()) { // 为文件时调用删除文件方法return deleteFile(sPath);} else { // 为目录时调用删除目录方法return deleteDirectory(sPath);}}}/*** 删除单个文件** @param sPath 被删除文件的文件名* @return 单个文件删除成功返回true，否则返回false*/public boolean deleteFile(String sPath) {flag = false;File file = new File(sPath);// 路径为文件且不为空则进行删除if (file.isFile() && file.exists()) {file.delete();flag = true;}return flag;}/*** 删除目录（文件夹）以及目录下的文件** @param sPath 被删除目录的文件路径* @return 目录删除成功返回true，否则返回false*/public boolean deleteDirectory(String sPath) {// 如果sPath不以文件分隔符结尾，自动添加文件分隔符if (!sPath.endsWith(File.separator)) {sPath = sPath + File.separator;}File dirFile = new File(sPath);// 如果dir对应的文件不存在，或者不是一个目录，则退出if (!dirFile.exists() || !dirFile.isDirectory()) {return false;}flag = true;// 删除文件夹下的所有文件(包括子目录)File[] files = dirFile.listFiles();for (int i = 0; i < files.length; i++) {// 删除子文件if (files[i].isFile()) {flag = deleteFile(files[i].getAbsolutePath());if (!flag)break;} // 删除子目录else {flag = deleteDirectory(files[i].getAbsolutePath());if (!flag)break;}}if (!flag)return false;// 删除当前目录if (dirFile.delete()) {return true;} else {return false;}}/*** 文件刷新** @param file*/private void fileScan(String file) {Uri data = Uri.parse("file://" + file);sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, data));}/*** 启动文件打开** @param f*/private void openFile(File f) {Intent intent = new Intent();intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);intent.setAction(android.content.Intent.ACTION_VIEW);// 获取文件媒体类型String type = getMIMEType(f);if (type == null)return;intent.setDataAndType(Uri.fromFile(f), type);startActivity(intent);}// add for test startprivate final String[][] MIME_MapTable = {// {后缀名， MIME类型}{".bin", "application/octet-stream"}, {".bmp", "image/bmp"},{".exe", "application/octet-stream"}, {".gif", "image/gif"},{".gtar", "application/x-gtar"},{".js", "application/x-javascript"},{".m3u", "audio/x-mpegurl"}, {".m4a", "audio/mp4a-latm"},{".m4b", "audio/mp4a-latm"}, {".m4p", "audio/mp4a-latm"},{".m4u", "video/vnd.mpegurl"}, {".m4v", "video/x-m4v"},{".mov", "video/quicktime"},{".mpc", "application/vnd.mpohun.certificate"},{".msg", "application/vnd.ms-outlook"},{".rtf", "application/rtf"}, {".wma", "audio/x-ms-wma"},{".wmv", "audio/x-ms-wmv"}};// add for test end// 获取文件类型private String getMIMEType(File file) {String type = "";String fileName = file.getName();String end = fileName.substring(fileName.indexOf(".") + 1).toLowerCase();// 判断文件类型// 文档文件Textif (end.equals("xml") || end.equals("text") || end.equals("h")|| end.equals("sh") || end.equals("rc") || end.equals("java")|| end.equals("c") || end.equals("cpp") || end.equals("conf")|| end.equals("prop") || end.equals("log"))type = "text/plain";else if (end.equals("htm") || end.equals("html"))type = "text/html";// 视频文件Videoelse if (end.equals("mpe") || end.equals("mpg") || end.equals("mpeg"))type = "video/mpeg";else if (end.equals("3gp"))type = "video/3gpp";else if (end.equals("mp4") || end.equals("mpeg4"))type = "video/mp4";else if (end.equals("avi"))type = "video/x-msvideo";else if (end.equals("asf"))type = "video/x-ms-asf";// 音频文件Audioelse if (end.equals("mp2") || end.equals("mp3"))type = "audio/x-mpeg";else if (end.equals("wav"))type = "audio/x-wav";else if (end.equals("rmvb"))type = "audio/x-pn-realaudio";else if (end.equals("ogg"))type = "audio/ogg";else if (end.equals("mpga"))type = "audio/mpeg";// 图片文件else if (end.equals("png"))type = "image/png";else if (end.equals("jpg") || end.equals("jpeg"))type = "image/jpeg";// 扩展文件Applicationelse if (end.equals("ppt") || end.equals("pps"))type = "application/vnd.ms-powerpoint";else if (end.equals("doc"))type = "application/msword";else if (end.equals("wps"))type = "application/vnd.ms-works";else if (end.equals("apk"))type = "application/vnd.android.package-archive";else if (end.equals("pdf"))type = "application/pdf";else if (end.equals("rar"))type = "application/x-rar-compressed";else if (end.equals("tgz") || end.equals("z"))type = "application/x-compressed";else if (end.equals("tar"))type = "application/x-tar";else if (end.equals("zip"))type = "application/zip";else if (end.equals("gz"))type = "application/x-gzip";else if (end.equals("jar"))type = "application/java-archive";else if (end.equals("bin") || end.equals("exe"))type = "application/octet-stream";// 未知文件else if (end.equals(""))type = "*/*";/* * if (end.equals("wma") || end.equals("mp3") || end.equals("midi") || * end.equals("ape") || end.equals("amr") || end.equals("ogg") || * end.equals("wav") || end.equals("acc")) { type = "audio"; } else if * (end.equals("3gp") || end.equals("mp4") || end.equals("rmvb") || * end.equals("flv") || end.equals("avi") || end.equals("wmv") || * end.equals("f4v")) { type = "video"; } else if (end.equals("jpg") || * end.equals("gif") || end.equals("png") || end.equals("jpeg") || * end.equals("bmp")) { type = "image"; } //add for doc start else * if(end * .equals("txt")||end.equals("cpp")||end.equals("c")||end.equals("java" * )||end.equals("prop")){ type = "text"; } //add for doc end else { * Toast.makeText(getApplicationContext(), "未知文件类型", Toast.LENGTH_LONG) * .show(); return null; } */// MIME Type格式是"文件类型/文件扩展名"type += "/*";return type;}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {menu.add(0, Menu.FIRST, 0, "新建");menu.add(0, Menu.FIRST + 1, 0, "关于");menu.add(0, Menu.FIRST + 2, 0, "排序");menu.add(0, Menu.FIRST + 3, 0, "退出");return super.onCreateOptionsMenu(menu);}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case 1: // 新建（文件夹）myNewDialog(0);break;case 2: // 关于Toast.makeText(this, "Copyright@Tchip 2014", Toast.LENGTH_SHORT).show();break;case 3: // 排序mySortDialog(0);break;case 4: // 退出应用Intent intent = new Intent(Intent.ACTION_MAIN);intent.addCategory(Intent.CATEGORY_HOME);intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);startActivity(intent);android.os.Process.killProcess(android.os.Process.myPid());}return super.onOptionsItemSelected(item);}@Overridepublic boolean onItemLongClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {AlertDialog.Builder builder = new AlertDialog.Builder(this);String[] items = {"重命名", "删除"};builder.setItems(items, new LongDialog(arg2));builder.create().show();return true;}class CreateDialog implements DialogInterface.OnClickListener {private View textEntryView;public CreateDialog(View textEntryView) {this.textEntryView = textEntryView;}@Overridepublic void onClick(DialogInterface dialog, int which) {// EditText userName = (EditText) textEntryView// .findViewById(R.id.fname);EditText userName = (EditText) textEntryView.findViewById(R.id.fname);String fn = userName.getText().toString().trim();if (!TextUtils.isEmpty(fn)) {File file = new File(backFile, fn);if (file.exists()) {Toast.makeText(Main.this, "文件夹已存在", Toast.LENGTH_SHORT).show();} else {if (file.mkdir()) {Toast.makeText(Main.this, "创建成功！", Toast.LENGTH_SHORT).show();} else {Toast.makeText(Main.this, "创建失败！", Toast.LENGTH_SHORT).show();}listDir(file.getAbsolutePath());// fileScan(f.getAbsolutePath());adapter.notifyDataSetChanged();}}}}class RenameDialog implements DialogInterface.OnClickListener {private View textEntryView2;public RenameDialog(View textEntryView2) {this.textEntryView2 = textEntryView2;}@Overridepublic void onClick(DialogInterface dialog, int which) {EditText userName = (EditText) textEntryView2.findViewById(R.id.fname);String fn = userName.getText().toString().trim();if (!TextUtils.isEmpty(fn)) {File old = new File(currentPath);File f = new File(backFile.getAbsolutePath(), fn);if (f.exists()) {Toast.makeText(Main.this, "文件已存在", Toast.LENGTH_SHORT).show();} else {Toast.makeText(Main.this, "文件重命名 " + old.renameTo(f), Toast.LENGTH_SHORT).show();listDir(f.getAbsolutePath());// fileScan(f.getAbsolutePath());adapter.notifyDataSetChanged();}}}}class DeleteDialog implements DialogInterface.OnClickListener {@Overridepublic void onClick(DialogInterface dialog, int which) {File file = new File(currentPath);if (file.exists()) {DeleteFolder(file.getAbsolutePath());listDir(file.getParent());// fileScan(f.getAbsolutePath());adapter.notifyDataSetChanged();} elseToast.makeText(Main.this, "文件不存在！", Toast.LENGTH_SHORT).show();}}// 文件操作选择class LongDialog implements DialogInterface.OnClickListener {private int pos = 0;public LongDialog(int pos) {this.pos = pos;}@Overridepublic void onClick(DialogInterface dialog, int which) {switch (which) {case 0:currentPath = (String) items.get(pos).get("path");myNewDialog(1);break;case 1:currentPath = (String) items.get(pos).get("path");myNewDialog(2);break;}}}}

绊脚石乃是进身之阶。