unZip a zip file to a folder - Android java.util.zip

Android examples for java.util.zip:ZipOutputStream

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Description

unZip a zip file to a folder

Demo Code

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

public class Main{

    @SuppressWarnings("rawtypes")
    public static void unZip(String zipfile, String destDir) {
        destDir = destDir.endsWith("//") ? destDir : destDir + "//";
        byte b[] = new byte[1024];
        int length;
        ZipFile zipFile;/*from   w w  w .  j  av  a  2 s  .c o m*/
        try {
            zipFile = new ZipFile(new File(zipfile));
            Enumeration enumeration = zipFile.entries();
            ZipEntry zipEntry = null;
            while (enumeration.hasMoreElements()) {
                zipEntry = (ZipEntry) enumeration.nextElement();
                File loadFile = new File(destDir + zipEntry.getName());
                if (zipEntry.isDirectory()) {
                    loadFile.mkdirs();
                } else {
                    if (!loadFile.getParentFile().exists()) {
                        loadFile.getParentFile().mkdirs();
                    }
                    OutputStream outputStream = new FileOutputStream(
                            loadFile);
                    InputStream inputStream = zipFile
                            .getInputStream(zipEntry);
                    while ((length = inputStream.read(b)) > 0) {
                        outputStream.write(b, 0, length);
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

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