Java tutorial
//package com.java2s; //License from project: Apache License import android.content.Context; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; public class Main { public static void copyFolder(Context context, String assetPath, String sdcardPath) { try { String[] list = context.getAssets().list(assetPath); File f = new File(sdcardPath); if (!f.exists()) f.mkdirs(); for (String s : list) copyFile(context, assetPath + "/" + s, sdcardPath + "/" + s); } catch (IOException e) { e.printStackTrace(); } } public static boolean copyFile(Context context, String assetPath, String sdcardPath) { InputStream is = null; FileOutputStream fs = null; boolean result = false; try { int byteread = 0; is = context.getAssets().open(assetPath); fs = new FileOutputStream(sdcardPath); byte[] buffer = new byte[1024]; while ((byteread = is.read(buffer)) != -1) { fs.write(buffer, 0, byteread); } result = true; } catch (Exception e) { e.printStackTrace(); } finally { try { if (is != null) is.close(); if (fs != null) fs.close(); } catch (IOException e) { e.printStackTrace(); } } return result; } }