android的文件、目录操作（二）

android的文件、目录操作（二）

2011-03-18 18:01:13| 分类：

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package otheri.common;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import otheri.io.Input;

import otheri.io.Output;

import android.content.Context;

import android.os.Environment;

public class FileHelper {

private Context context;

private String SDPATH;

private String FILESPATH;

public FileHelper(Context context) {

this.context = context;

SDPATH = Environment.getExternalStorageDirectory().getPath() + "\\";

FILESPATH = this.context.getFilesDir().getPath() + "\\";

}

/**

* 在SD卡上创建文件

*

* @throws IOException

*/

public File creatSDFile(String fileName) throws IOException {

File file = new File(SDPATH + fileName);

file.createNewFile();

return file;

}

/**

* 删除SD卡上的文件

*

* @param fileName

*/

public boolean delSDFile(String fileName) {

File file = new File(SDPATH + fileName);

if (file == null || !file.exists() || file.isDirectory())

return false;

file.delete();

return true;

}

/**

* 在SD卡上创建目录

*

* @param dirName

*/

public File creatSDDir(String dirName) {

File dir = new File(SDPATH + dirName);

dir.mkdir();

return dir;

}

/**

* 删除SD卡上的目录

*

* @param dirName

*/

public boolean delSDDir(String dirName) {

File dir = new File(SDPATH + dirName);

return delDir(dir);

}

/**

* 修改SD卡上的文件或目录名

*

* @param fileName

*/

public boolean renameSDFile(String oldfileName, String newFileName) {

File oleFile = new File(SDPATH + oldfileName);

File newFile = new File(SDPATH + newFileName);

return oleFile.renameTo(newFile);

}

/**

* 拷贝SD卡上的单个文件

*

* @param path

* @throws IOException

*/

public boolean copySDFileTo(String srcFileName, String destFileName)

throws IOException {

File srcFile = new File(SDPATH + srcFileName);

File destFile = new File(SDPATH + destFileName);

return copyFileTo(srcFile, destFile);

}