Android Fast Unzip Programatically

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import android.util.Log; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; /** * @credit http://stackoverflow.com/a/21159437/1730484 */ public class Decompress { private String _zipFile; private String _location; public interface DecompressListener { public void onFinish(String zipfile); } public Decompress(String zipFile, String location) { _zipFile = zipFile; _location = location; hanldeDirectory(""); } public void unzip(DecompressListener listener) { try { FileInputStream inputStream = new FileInputStream(_zipFile); ZipInputStream zipStream = new ZipInputStream(inputStream); ZipEntry zEntry = null; while ((zEntry = zipStream.getNextEntry()) != null) { Log.d("Unzip", "Unzipping " + zEntry.getName() + " at " + _location); if (zEntry.isDirectory()) { hanldeDirectory(zEntry.getName()); } else { FileOutputStream fout = new FileOutputStream( this._location + "/" + zEntry.getName()); BufferedOutputStream bufout = new BufferedOutputStream(fout); byte[] buffer = new byte[1024]; int read = 0; while ((read = zipStream.read(buffer)) != -1) { bufout.write(buffer, 0, read); } zipStream.closeEntry(); bufout.close(); fout.close(); } } zipStream.close(); Log.d("Unzip", "Unzipping complete. path : " + _location); } catch (Exception e) { Log.d("Unzip", "Unzipping failed"); e.printStackTrace(); } finally { if (listener != null) listener.onFinish(_zipFile); } } public void hanldeDirectory(String dir) { File f = new File(this._location + dir); if (!f.isDirectory()) { f.mkdirs(); } } }