Java tutorial
//package com.java2s; /** * Copyright 2014 Joan Zapata * * This file is part of Android-pdfview. * * Android-pdfview 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. * * Android-pdfview 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 Android-pdfview. If not, see <http://www.gnu.org/licenses/>. */ import android.content.Context; import java.io.*; public class Main { public static File fileFromAsset(Context context, String assetName) throws IOException { File outFile = new File(context.getCacheDir(), assetName + "-pdfview.pdf"); copy(context.getAssets().open(assetName), outFile); return outFile; } public static void copy(InputStream inputStream, File output) throws IOException { OutputStream outputStream = null; try { outputStream = new FileOutputStream(output); int read = 0; byte[] bytes = new byte[1024]; while ((read = inputStream.read(bytes)) != -1) { outputStream.write(bytes, 0, read); } } finally { try { if (inputStream != null) { inputStream.close(); } } finally { if (outputStream != null) { outputStream.close(); } } } } }