No Circular Animation

[burnix]

I'm trying to simply add animation, following to your guide, but all what can I see is empty screen and flat card view in 1,5 seconds... No Circular animation.

MainActivity:

   CardView myView = (CardView) findViewById(R.id.awesome_card);

    // get the center for the clipping circle
    int cx = (myView.getLeft() + myView.getRight()) / 2;
    int cy = (myView.getTop() + myView.getBottom()) / 2;

    // get the final radius for the clipping circle
    int dx = Math.max(cx, myView.getWidth() - cx);
    int dy = Math.max(cy, myView.getHeight() - cy);
    float finalRadius = (float) Math.hypot(dx, dy);

    SupportAnimator animator =
            ViewAnimationUtils.createCircularReveal(myView, cx, cy, 0, finalRadius);
    animator.setInterpolator(new AccelerateDecelerateInterpolator());
    animator.setDuration(1500);
    animator.start();

Layout:

  <?xml version="1.0" encoding="utf-8"?>
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.igor.librarytest.MainActivity">

<io.codetail.widget.RevealFrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Put more views here if you want, it's stock frame layout  -->

    <android.support.v7.widget.CardView
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/awesome_card"
        style="@style/CardView"
        app:cardBackgroundColor="#AFB42B"
        app:cardElevation="2dp"
        app:cardPreventCornerOverlap="false"
        app:cardUseCompatPadding="true"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginTop="8dp"
        android:layout_width="300dp"
        android:layout_height="300dp"
        android:layout_gravity="center_horizontal"
        />

</io.codetail.widget.RevealFrameLayout>


 </LinearLayout>

Gradle:

repositories {
maven {
    url "https://jitpack.io"
}
}
dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.0'
compile 'com.android.support:cardview-v7:23.2.0'

compile 'com.nineoldandroids:library:2.4.0+'

compile('com.github.ozodrukh:CircularReveal:1.3.1@aar') {
    transitive = true;
}

What did I miss? Thanks in advance.

P.S. min API is 15. Testing on 19.

[ozodrukh]

you might be invoking animator.start(); in onCreate therefore animation is missing, you need to
look at answer #1 or answer #2

[burnix]

@ozodrukh thank you!

this was my solution

 public void onWindowFocusChanged (boolean hasFocus) 
 {
   super.onWindowFocusChanged(hasFocus);
  AnimationDrawable frameAnimation = 
    (AnimationDrawable) animation.getBackground();
  if(hasFocus) {
    frameAnimation.start();
} else {
    frameAnimation.stop();
}
 }