finger based zoomming in android

                                    Zooming Layout in Android

Java File Main Activity:

package com.example.fingerbasedzoom;

import pl.polidea.view.ZoomView;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout.LayoutParams;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.LinearLayout;

public class MainActivity extends ActionBarActivity {

private ZoomView zoomView;
LinearLayout main_container;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

View v = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(R.layout.framed, null, false);
v.setLayoutParams(new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));

zoomView = new ZoomView(this);
zoomView.addView(v);

main_container = (LinearLayout) findViewById(R.id.linear_fuc1);
main_container.addView(zoomView);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}


activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<LinearLayout
android:id="@+id/linear_fuc1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
</LinearLayout>

</LinearLayout>

framed.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/darkgreen" >

<LinearLayout
android:id="@+id/frade"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/blue"
android:orientation="vertical" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Hi This is chandru"
android:textColor="#000"
android:textSize="10dp" />

<TextView
android:layout_width="fill_parent"
android:layout_height="83dp"
android:gravity="right"
android:text="bottom text"
android:textColor="#fff"
android:textSize="20dp" />

<ScrollView
android:id="@+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<ScrollView
android:id="@+id/scrollView2"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />

<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" >

<requestFocus />
</EditText>

<Button
android:id="@+id/button7"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button9"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button10"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />

<Button
android:id="@+id/button11"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
</ScrollView>
</LinearLayout>
</ScrollView>
</LinearLayout>

</FrameLayout>


Screen:

Before Zoom Image

After Zoom Image

Source Code Download From Link:

                            Full source code for finger based zooming.