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POUzip folders recursively -android
 

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    <p>I have tried to unzip a zipped file (This file contains many sub-folders and files).</p> <pre><code>I am not able to create sub-folders while unzipping the file. </code></pre> <p>Each time I am getting an error saying:</p> <pre><code>No such file or directory. </code></pre> <p>I have searched a lot about this like: </p> <ol> <li><a href="https://stackoverflow.com/questions/5028421/android-unzip-a-folder">Android - Unzip a folder?</a></li> <li><a href="http://www.roseindia.net/tutorial/java/corejava/zip/ZipIsDirectory.html" rel="nofollow noreferrer">http://www.roseindia.net/tutorial/java/corejava/zip/ZipIsDirectory.html</a></li> <li><a href="https://stackoverflow.com/questions/7697466/unzip-a-zipped-file-on-sd-card-in-android-application">Unzip a zipped file on sd card in Android application</a></li> <li><a href="https://stackoverflow.com/questions/981578/how-to-unzip-files-recursively-in-java">How to unzip files recursively in Java?</a></li> </ol> <p>But, nothing helped me.</p> <p>Following is what I have tried:</p> <pre><code>public class UnZipper { private static final String TAG = "UnZip"; private String mFileName, mDestinationPath; public UnZipper(String fileName, String destinationPath) { mFileName = fileName; mDestinationPath = destinationPath; } public String getFileName() { return mFileName; } public String getDestinationPath() { return mDestinationPath; } // shrikant public void unzip() { String fullPath = mFileName; Log.d(TAG, "unzipping " + mFileName + " to " + mDestinationPath); doInBackground(fullPath, mDestinationPath); } // shrikant: I have changed return type from Boolean to boolean. protected boolean doInBackground(String filePath, String destinationPath) { File archive = new File(filePath); boolean returnValue = false; try { ZipFile zipfile = new ZipFile(archive); for (Enumeration e = zipfile.entries(); e.hasMoreElements();) { ZipEntry entry = (ZipEntry) e.nextElement(); try { unzipEntry(zipfile, entry, destinationPath); Log.d("Unzipped", entry.getName()); returnValue = true; } catch (Exception ex) { Log.e(TAG, "Error while extracting file: " + entry + ex.getMessage()); } } } catch (Exception e) { Log.e(TAG, "Error while extracting file " + archive, e); // return false; } return returnValue; } // shrikant: I have changed return type from void to boolean. /** * Unzips the zipped file into outputDir path. * * @param zipfile * @param entry * @param outputDir * @throws IOException */ private void unzipEntry(ZipFile zipfile, ZipEntry entry, String outputDir) throws IOException { Log.d("CURRENT ZIP", entry.getName()); String _dir = null, fileName = null; if (entry.getName().contains("\\")) { _dir = entry.getName().substring(0, entry.getName().indexOf('\\')); createDir(new File(outputDir, _dir)); fileName = entry.getName().substring(entry.getName().indexOf('\\')); } // Change by Prashant : To Remove "/" from file Name Date : 5/01/2011 if (fileName.toString().startsWith("\\")) { fileName = fileName.substring(1); // End } if (_dir != "") outputDir = outputDir + "/" + _dir; File outputFile = new File(outputDir, fileName); if (!outputFile.getParentFile().exists()) { createDir(outputFile.getParentFile()); } Log.d("OUTPUT FILE", outputDir + fileName); Log.v(TAG, "Extracting: " + entry); Log.d("FOUND inside unzipEntry()", entry.getName()); BufferedInputStream inputStream = new BufferedInputStream( zipfile.getInputStream(entry)); // **here I am getting error.** BufferedOutputStream outputStream = new BufferedOutputStream( new FileOutputStream(outputFile)); // **above line.** try { copy(inputStream, outputStream); } finally { outputStream.close(); inputStream.close(); } } private void createDir(File dir) { if (dir.exists()) { return; } Log.v(TAG, "Creating dir " + dir.getName()); if (!dir.mkdirs()) { throw new RuntimeException("Cannot create dir " + dir); } } private void copy(BufferedInputStream input, BufferedOutputStream output) throws IOException { byte[] buffer = new byte[4096]; int size; while ((size = input.read(buffer)) != -1) output.write(buffer, 0, size); } } </code></pre> <p><strong>My question is</strong>: (Please look at the code)</p> <p>When I am calling <code>unzipEntry()</code>, when it encounters a sub-folder, it passes something like "<code>/data/abc.ext</code>", but my file system does not contain any folder named as "<strong>data</strong>", I even tried to create it, but failed in doing so. </p> <blockquote> <p>So how to create sub-folders from zipped file to destination path??</p> </blockquote> <p>I have even tried method:</p> <pre><code>if(entry.isDirectory) { // create directory } </code></pre> <p>But this doesn't get called, since <code>unzipEntry()</code> (Please look in <code>for() loop</code>) directly passes the file under sub-folder.</p> <p>Please help me on this.</p> <p>Thank you.</p>
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