Android ImageView Zoom-in and Zoom-out Continuously

Question

Is there any way to Zoom-in and Zoom-out an ImageView continuously in Android. I tried using the below code, but only one of the Zoom function is working.

Answer 1

You can use something like below and as Sanket mentioned

Zommin.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true" >
    <scale
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="5000"
        android:fromXScale="1"
        android:fromYScale="1"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toXScale="1.5"
        android:toYScale="1.5"
        >
    </scale>

</set>

Zoomout.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:fillAfter="true" >
    <scale
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="5000"
        android:fromXScale="1.5"
        android:fromYScale="1.5"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toXScale="1"
        android:toYScale="1" >
    </scale>

</set>

And the code :

zoomin.setAnimationListener(new Animation.AnimationListener() {

            @Override
            public void onAnimationStart(Animation arg0) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onAnimationRepeat(Animation arg0) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onAnimationEnd(Animation arg0) {
                imageView.startAnimation(zoomout);

            }
        });

Answer 2

simply use in your animation xml:

 android:repeatMode="restart"
    android:repeatCount="infinite"

Answer 3

use this instead of thread

 zoomin.setAnimationListener(new AnimationListener() {

        @Override
        public void onAnimationStart(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationRepeat(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationEnd(Animation arg0) {
            bgImage.startAnimation(zoomout); 

        }
    });

and

 zoomout.setAnimationListener(new AnimationListener() {

        @Override
        public void onAnimationStart(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationRepeat(Animation arg0) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onAnimationEnd(Animation arg0) {
            bgImage.startAnimation(zoomin); 

        }
    });