decode base64 To File - Android File Input Output

Android examples for File Input Output:Base64

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Description

decode base64 To File

Demo Code


//package com.java2s;
import java.io.ByteArrayInputStream;

import java.io.File;

import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import android.util.Base64;

public class Main {

    private static final int CACHE_SIZE = 1024;

    public static void decodeToFile(String filePath, String base64)
            throws Exception {
        byte[] bytes = decode(base64);
        byteArrayToFile(bytes, filePath);
    }/*from  w ww  .ja  v  a 2s.co  m*/

    public static byte[] decode(String base64) throws Exception {
        return Base64.decode(base64.getBytes(), Base64.DEFAULT);
    }

    public static void byteArrayToFile(byte[] bytes, String filePath)
            throws Exception {
        InputStream in = new ByteArrayInputStream(bytes);
        File destFile = new File(filePath);
        if (!destFile.getParentFile().exists()) {
            destFile.getParentFile().mkdirs();
        }
        destFile.createNewFile();
        OutputStream out = new FileOutputStream(destFile);
        byte[] cache = new byte[CACHE_SIZE];
        int nRead = 0;
        while ((nRead = in.read(cache)) != -1) {
            out.write(cache, 0, nRead);
            out.flush();
        }
        out.close();
        in.close();
    }
}

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