unzip a file to location - Android java.util.zip

Android examples for java.util.zip:ZipOutputStream

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Description

unzip a file to location

Demo Code


//package com.java2s;

import android.util.Log;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class Main {
    private static final String TAG = "APKUTIL";

    public static void unzip(String zipFile, String location)
            throws IOException {
        try {//from   w  w  w.  j a  v a2 s. c  o m
            File f = new File(location);
            if (!f.isDirectory()) {
                f.mkdirs();
            }
            ZipInputStream zin = new ZipInputStream(new FileInputStream(
                    zipFile));
            try {
                ZipEntry ze = null;
                while ((ze = zin.getNextEntry()) != null) {
                    String path = location + ze.getName();

                    if (ze.isDirectory()) {
                        File unzipFile = new File(path);
                        if (!unzipFile.isDirectory()) {
                            unzipFile.mkdirs();
                        }
                    } else {
                        FileOutputStream fout = new FileOutputStream(path,
                                false);
                        try {
                            for (int c = zin.read(); c != -1; c = zin
                                    .read()) {
                                fout.write(c);
                            }
                            zin.closeEntry();
                        } finally {
                            fout.close();
                        }
                    }
                }
            } finally {
                zin.close();
            }
        } catch (Exception e) {
            Log.e(TAG, "Unzip exception", e);
        }
    }
}

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