Zooming Animation in android

Here I am writing a code for zoom animation.
Here I have add this animation on mic button. You can add it according to your requirements.
First of all implements Animation.AnimationListener listener.
Then in your activity do this

  Animation animZoomIn;
animZoomIn = AnimationUtils.loadAnimation(this, R.anim.zoom_in);
        animZoomIn.setAnimationListener(this);

You have to specify your animation in an xml. This is the zoom_in.xml in anim folder in res file.

<scale
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:fromXScale="1"
    android:fromYScale="1"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toXScale="1.5"
    android:repeatCount="infinite"
    android:repeatMode="restart"
    android:toYScale="1.5" >
</scale>

click of an image or any event, you can start animation like this.

  micImage.startAnimation(animZoomIn);

When you want to close animation for this image you just have to call

micImage.clearAnimation();