Android Zip Unzip a Folder Demo | Unzip to a zip file in Android | Code for unzip a file in android

Hello Friends,

Today I am going to share code for unzip a file into android phone sd-card. For that I am using File chooser to select a zip file then using ZipInputStream I convert it into unzip file.

Reference- https://github.com/iPaulPro/aFileChooser

Below is the source code, you can download zip code too from below download link-

1)MainActivity.java-

package com.manish.androidhub4you.zip.unzip;

import java.io.File;

import android.app.Activity;

import android.content.ActivityNotFoundException;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

import com.ipaulpro.afilechooser.utils.FileUtils;

public class MainActivity extends Activity implements OnClickListener{

       private static final int PICKFILE_RESULT_CODE = 0;

       private String mFilePath;

       private Button mButtonChoose;

       private  String mDestinationFile =CommonMethod.unzipDestination.toString()+"/";

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              super.onCreate(savedInstanceState);

              setContentView(R.layout.activity_main);

              mButtonChoose=(Button)findViewById(R.id.button_choose);

             

              mButtonChoose.setOnClickListener(this);

             

       }

      

       @Override

       public void onClick(View v) {

              // TODO Auto-generated method stub

              switch(v.getId()){

              case R.id.button_choose:

                     mShowChooser();

                     break;

                    

              }

             

       }

      

      

       /*

        * (non-Javadoc)

        * @see android.app.Activity#onActivityResult(int, int, android.content.Intent)

        */

       protected void onActivityResult(int requestCode, int resultCode, Intent data) {

              super.onActivityResult(requestCode, resultCode, data);

              if (resultCode != RESULT_OK) {

                     return;

              }

              switch (requestCode) {

             

              case PICKFILE_RESULT_CODE:

                     // If the file selection was successful

                     if (resultCode == RESULT_OK) {

                           if (data != null) {

                                  // Get the URI of the selected file

                                  final Uri uri = data.getData();

                                  try {

                                         // Create a file instance from the URI

                                         final File file = FileUtils.getFile(uri);

                                         mFilePath = file.getAbsolutePath();

                                         if (uri != null) {

                                                 if(CommonMethod.unzipDestination.exists()==false) {

                                                        CommonMethod.unzipDestination.mkdirs();

                                             }

                                                Toast.makeText(MainActivity.this,"File Selected: " + mFilePath,Toast.LENGTH_LONG).show();

                                                 CommonMethod.mUnpackZipFile(mFilePath,mDestinationFile);

                                         }

                                        

                                        

                                  } catch (Exception e) {

                                         Log.e("FileSelectorTestActivity", "File select error",e);

                                  }

                           }

                     }

                     break;

              }

}

      

       /**

        * method for open a chooser to choose zip file

        */

       private void mShowChooser() {

              // Use the GET_CONTENT intent from the utility class

              Intent target = FileUtils.createGetContentIntent();

              // Create the chooser Intent

              Intent intent = Intent.createChooser(target,

                           getString(R.string.choose_file));

              try {

                     startActivityForResult(intent, PICKFILE_RESULT_CODE);

              } catch (ActivityNotFoundException e) {

                     // The reason for the existence of aFileChooser

              }

  }

      

}

2)CommonMethod.java-

package com.manish.androidhub4you.zip.unzip;

import java.io.BufferedInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

/**

 *

 * @author manish

 *

 */

public class CommonMethod {

      

       public static File root = android.os.Environment.getExternalStorageDirectory();

       public static File unzipDestination = new File(root.getAbsolutePath() + "/Androidhub4you/UNZIP");

      

/**

 *

 * @param mArchivePath

 * @param mZipname

 * @param mOutPutStream

 * @return

 */

        public static boolean mUnpackZipFile(String mArchivePath,String mOutPutStream) { 

                InputStream inputstream; 

                ZipInputStream zipinputstream; 

                try { 

                 String filename; 

                 inputstream = new FileInputStream(mArchivePath); 

                 zipinputstream = new ZipInputStream(new BufferedInputStream(inputstream)); 

                 ZipEntry mZipEntry; 

                 byte[] buffer = new byte[1024]; 

                 int count; 

               

                 while ((mZipEntry = zipinputstream.getNextEntry()) != null) { 

                  filename = mZipEntry.getName(); 

               

                  if (mZipEntry.isDirectory()) { 

                   File fmd = new File(mOutPutStream + filename); 

                   fmd.mkdirs(); 

                   continue; 

                  } 

               

                  FileOutputStream fileoutputstream = new FileOutputStream(mOutPutStream + filename); 

               

                  while ((count = zipinputstream.read(buffer)) != -1) { 

                   fileoutputstream.write(buffer, 0, count); 

                  } 

                 

                

                  fileoutputstream.close(); 

                  zipinputstream.closeEntry(); 

                 } 

               

                 zipinputstream.close(); 

                } catch (IOException e) { 

                 e.printStackTrace(); 

                 return false; 

                } 

               

                return true; 

               } 

               

}

3)activity_main.xml-

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <Button

        android:id="@+id/button_choose"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="44dp"

        android:text="Choose file to unzip" />

</RelativeLayout>

3)manifest.xml-

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.manish.androidhub4you.zip.unzip"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="18" />

   

      <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

       <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.manish.androidhub4you.zip.unzip.MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

       

        <activity

            android:name="com.ipaulpro.afilechooser.FileChooserActivity"

            android:exported="false" >

            <intent-filter>

                <action android:name="android.intent.action.GET_CONTENT" />

                <category android:name="android.intent.category.DEFAULT" />

                <category android:name="android.intent.category.OPENABLE" />

                <data android:mimeType="*/*" />

            </intent-filter>

        </activity>

       

    </application>

</manifest>

DOWNLOAD-ZIP-CODE

Thanks,
Manish