Thursday, December 4, 2014

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

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