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- Unzip a zipped file on sd card in Android application
- import android.util.Log;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.util.zip.ZipEntry;
- import java.util.zip.ZipInputStream;
- /**
- *
- * @author jon
- */
- public class Decompress {
- private String _zipFile;
- private String _location;
- public Decompress(String zipFile, String location) {
- _zipFile = zipFile;
- _location = location;
- _dirChecker("");
- }
- public void unzip() {
- try {
- FileInputStream fin = new FileInputStream(_zipFile);
- ZipInputStream zin = new ZipInputStream(fin);
- ZipEntry ze = null;
- while ((ze = zin.getNextEntry()) != null) {
- Log.v("Decompress", "Unzipping " + ze.getName());
- if(ze.isDirectory()) {
- _dirChecker(ze.getName());
- } else {
- FileOutputStream fout = new FileOutputStream(_location + ze.getName());
- for (int c = zin.read(); c != -1; c = zin.read()) {
- fout.write(c);
- }
- zin.closeEntry();
- fout.close();
- }
- }
- zin.close();
- } catch(Exception e) {
- Log.e("Decompress", "unzip", e);
- }
- }
- private void _dirChecker(String dir) {
- File f = new File(_location + dir);
- if(!f.isDirectory()) {
- f.mkdirs();
- }
- }
- }
- String zipFilename = Environment.getExternalStorageDirectory() + "/files.zip";
- String unzipLocation = Environment.getExternalStorageDirectory() + "/unzipped/";
- Decompress d = new Decompress(zipFilename, unzipLocation);
- d.unzip();
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