added zip manager

added zip manager

Author: Nilanchala

com.javatechig.androidzip/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.zipp"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <uses-sdk android:minSdkVersion="8" />
+
+    <application android:icon="@drawable/ic_launcher" android:label="@string/app_name">
+        <activity android:name="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>
+ 
+ <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    </application>
+
+ 
+</manifest>

com.javatechig.androidzip/assets/diode.png

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+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system use,
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-8

com.javatechig.androidzip/assets/passive.png

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:orientation="vertical" >
+
+    <TextView
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
+        android:padding="10dp"
+        android:text="@string/instruction"
+        android:textAppearance="?android:attr/textAppearanceLarge" />
+
+    <Button
+        android:id="@+id/button_zip"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="10dp"
+        android:text="Create Zip" />
+
+    <Button
+        android:id="@+id/button_unzip"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="10dp"
+        android:text="Unzip" />
+
+</LinearLayout>

com.javatechig.androidzip/project.properties

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<resources>
+    <string name="instruction">Zipping and Unzipping!</string>
+    <string name="app_name">User Application</string>
+</resources>

com.javatechig.androidzip/res/drawable-hdpi/ic_launcher.png

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+package com.zipp;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Environment;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+
+public class MainActivity extends Activity {
+
+	String inputPath = Environment.getExternalStorageDirectory().getPath()+ "/ZipDemo/";
+	String inputFile = "Apply.zip";
+	String outputPath = Environment.getExternalStorageDirectory().getPath()+ "/UnZipDemo/";
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.main);
+
+		((Button) findViewById(R.id.button_zip))
+				.setOnClickListener(new OnClickListener() {
+
+					@Override
+					public void onClick(View view) {
+						// declare an array for storing the files i.e the path
+						// of your source files
+						String[] s = new String[2];
+
+						// Type the path of the files in here
+						s[0] = inputPath + "/image.jpg";
+						s[1] = inputPath + "/textfile.txt"; // /sdcard/ZipDemo/textfile.txt
+
+						// first parameter is d files second parameter is zip
+						// file name
+						ZipManager zipManager = new ZipManager();
+
+						// calling the zip function
+						zipManager.zip(s, inputPath + inputFile);
+					}
+				});
+
+		((Button) findViewById(R.id.button_unzip))
+				.setOnClickListener(new OnClickListener() {
+
+					@Override
+					public void onClick(View view) {
+						ZipManager zipManager = new ZipManager();
+						zipManager.unzip(inputPath + inputFile, outputPath);
+					}
+				});
+
+		//moveFile(inputPath, inputFile, outputPath);
+
+	}
+
+	private void moveFile(String inputPath, String inputFile, String outputPath) {
+
+		InputStream in = null;
+		OutputStream out = null;
+		try {
+			// create output directory if it doesn't exist
+			File dir = new File(outputPath);
+			if (!dir.exists()) {
+				dir.mkdirs();
+			}
+
+			in = new FileInputStream(inputPath + inputFile);
+			out = new FileOutputStream(outputPath + inputFile);
+
+			byte[] buffer = new byte[1024];
+			int read;
+			while ((read = in.read(buffer)) != -1) {
+				out.write(buffer, 0, read);
+			}
+			in.close();
+			in = null;
+
+			// write the output file
+			out.flush();
+			out.close();
+			out = null;
+
+			// delete the original file
+			new File(inputPath + inputFile).delete();
+		}
+
+		catch (FileNotFoundException fnfe1) {
+			Log.e("tag", fnfe1.getMessage());
+		} catch (Exception e) {
+			Log.e("tag", e.getMessage());
+		}
+	}
+}

com.javatechig.androidzip/res/drawable-ldpi/ic_launcher.png

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+package com.zipp;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+import android.util.Log;
+
+public class ZipManager {
+	private static final int BUFFER = 80000;
+
+	public void zip(String[] _files, String zipFileName) {
+		try {
+			BufferedInputStream origin = null;
+			FileOutputStream dest = new FileOutputStream(zipFileName);
+			ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
+					dest));
+			byte data[] = new byte[BUFFER];
+
+			for (int i = 0; i < _files.length; i++) {
+				Log.v("Compress", "Adding: " + _files[i]);
+				FileInputStream fi = new FileInputStream(_files[i]);
+				origin = new BufferedInputStream(fi, BUFFER);
+
+				ZipEntry entry = new ZipEntry(_files[i].substring(_files[i].lastIndexOf("/") + 1));
+				out.putNextEntry(entry);
+				int count;
+
+				while ((count = origin.read(data, 0, BUFFER)) != -1) {
+					out.write(data, 0, count);
+				}
+				origin.close();
+			}
+
+			out.close();
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	public void unzip(String _zipFile, String _targetLocation) {
+		
+		//create target location folder if not exist
+		dirChecker(_targetLocation);
+		
+		try {
+			FileInputStream fin = new FileInputStream(_zipFile);
+			ZipInputStream zin = new ZipInputStream(fin);
+			ZipEntry ze = null;
+			while ((ze = zin.getNextEntry()) != null) {
+
+				//create dir if required while unzipping
+				if (ze.isDirectory()) {
+					dirChecker(ze.getName());
+				} else {
+					FileOutputStream fout = new FileOutputStream(_targetLocation + ze.getName());
+					for (int c = zin.read(); c != -1; c = zin.read()) {
+						fout.write(c);
+					}
+
+					zin.closeEntry();
+					fout.close();
+				}
+
+			}
+			zin.close();
+		} catch (Exception e) {
+			System.out.println(e);
+		}
+	}
+
+	private void dirChecker(String dir) {
+		File f = new File(dir);
+		if (!f.isDirectory()) {
+			f.mkdirs();
+		}
+	}
+
+}