Java tutorial
//package com.java2s; /* * Copyright (C) Stichting Akvo (Akvo Foundation) * * This file is part of Akvo Caddisfly. * * Akvo Caddisfly is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Akvo Caddisfly is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Akvo Caddisfly. If not, see <http://www.gnu.org/licenses/>. */ import android.content.Context; import java.io.BufferedInputStream; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.IOException; public class Main { public static byte[] readByteArray(Context context, String fileName) throws IOException { byte[] data; int c; FileInputStream fis = context.openFileInput(fileName); ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); BufferedInputStream bos = new BufferedInputStream(fis); while ((c = bos.read()) != -1) { byteArrayOutputStream.write(c); } data = byteArrayOutputStream.toByteArray(); bos.close(); byteArrayOutputStream.close(); fis.close(); return data; } }