Zooming the ImageView

For Zooming the ImageView Here is the snippet :

public class Zoom extends View {

private Drawable image;

private int zoomControler=200;

public Zoom(Context context)

{

super(context);

image=context.getResources().getDrawable(R.drawable.gallery_photo_1);

setFocusable(true);

}

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

//here u can control the width and height of the images........ this line is very important

image.setBounds((getWidth()/2)-zoomControler, (getHeight()/2)-zoomControler, (getWidth()/2)+zoomControler, (getHeight()/2)+zoomControler);

image.draw(canvas);

}

@Override

public boolean onKeyDown(int keyCode, KeyEvent event) {

if(keyCode==KeyEvent.KEYCODE_DPAD_UP)// zoom in

zoomControler+=10;

if(keyCode==KeyEvent.KEYCODE_DPAD_DOWN) // zoom out

zoomControler-=10;

if(zoomControler<10)

zoomControler=10;

invalidate();

return true;

}

}

If any body knows the other way they can post here it should be helpful for others to develop.....