animation-list not working in Android 5.0 (Lollipop)

Question

I needed a simple animation which shows 3-dots loading. So I created 3 images, added it to animation list and set it to imageview. It was working fine till kitkat but after updating my OS to Lollipop, the animation doesn't seem to work.

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
android:oneshot="false" >

<item
    android:drawable="@drawable/one_dot"
    android:duration="500"/>
<item
    android:drawable="@drawable/two_dot"
    android:duration="500"/>
<item
    android:drawable="@drawable/three_dot"
    android:duration="500"/>

</animation-list>

This is how its set to the imageView

   <ImageView
        android:id="@+id/dotsLoadingView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/loadingText"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="10dp"
        android:src="@drawable/dots_loading" />

Is there some change regarding animation in Android 5.0 Lollipop?

Answer 1

From the documentation for AnimationDrawable,

The simplest way to create a frame-by-frame animation is to define the animation in an XML file, placed in the res/drawable/ folder, and set it as the background to a View object. Then, call start() to run the animation.

You need to call start() to run the animation.

final ImageView myView = (ImageView) findViewById(R.id.dotsLoadingView);
((Animatable) myView.getDrawable()).start();