FileHelper.java

package cn.yo2.aquarium.test.testandroidserver;


import android.util.Log;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileHelper {
    // private static String FILEPATH = "/data/local/tmp";

    private static String FILEPATH = "/sdcard";

    // private static String FILEPATH = "/tmp";

    public static File newFile(String fileName) {
        File file = null;
        try {
            file = new File(FILEPATH, fileName);
            file.delete();
            file.createNewFile();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return file;
    }

    public static void writeFile(File file, byte[] data, int offset, int count)
            throws IOException {

        FileOutputStream fos = new FileOutputStream(file, true);
        fos.write(data, offset, count);
        fos.flush();
        fos.close();
    }

    public static byte[] readFile(String fileName) throws IOException {
        File file = new File(FILEPATH, fileName);
        file.createNewFile();
        FileInputStream fis = new FileInputStream(file);
        BufferedInputStream bis = new BufferedInputStream(fis);
        int leng = bis.available();
        Log.v(AndroidService.TAG, "filesize = " + leng);
        byte[] b = new byte[leng];
        bis.read(b, 0, leng);
        // Input in = new Input(fis);
        // byte[] ret = in.readAll();
        // in.close();
        bis.close();
        return b;

    }
}