阳光的光圈通过旋转 ，动画实现

缩放动画（单一动画）

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <scale
        android:duration="5000"
        android:fillBefore="true"
        android:fromXScale="1.1"
        android:fromYScale="1.1"
        android:pivotX="50%"
        android:pivotY="50%"
        android:repeatCount="infinite"
        android:repeatMode="restart"
        android:toXScale="1.6"
        android:toYScale="1.6" />

</set>

旋转动画（单一动画）

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <rotate
        android:duration="5000"
        android:fromDegrees="0"
        android:pivotX="50%"
        android:pivotY="0%"
        android:repeatCount="infinite"
        android:repeatMode="restart"
        android:toDegrees="85" />
</set>

组合动画（旋转与淡出）

private void multiAnimation(ImageView head) {
    head.setPivotX(head.getWidth() / 2);//设置指定旋转中心点X坐标
    head.setPivotY(0);//设置指定旋转中心点Y坐标
    ObjectAnimator objectAnimator1 = ObjectAnimator.ofFloat(head, "alpha", 1.0f, 0f);
    //旋转不停顿
    objectAnimator1.setInterpolator(new LinearInterpolator());
    objectAnimator1.setRepeatCount(ValueAnimator.INFINITE);
    objectAnimator1.setRepeatMode(ValueAnimator.RESTART);

    ObjectAnimator objectAnimator3 = ObjectAnimator.ofFloat(head, "rotation", 0.0f, 90.0f);
    objectAnimator3.setInterpolator(new LinearInterpolator());
    objectAnimator3.setRepeatCount(ValueAnimator.INFINITE);
    objectAnimator3.setRepeatMode(ValueAnimator.RESTART);

    /**
     * mArrowImageView.setPivotX(mArrowImageView.getMeasureWidth() / 2);
     * mArrowImageView.setPivotY(mArrowImageView.getMeasureHeight() / 2);
     */

    AnimatorSet animatorSet = new AnimatorSet();
    animatorSet.play(objectAnimator1).with(objectAnimator3);
    animatorSet.setDuration(2000);
    animatorSet.start();
}

 

组合动画 （缩放效果， x 轴  Y轴）

/**
 * 光晕的效果  缩放
 *
 * @param head
 */
private void sunMmultiAnimationScale(ImageView head) {

    ObjectAnimator objectAnimator4 = ObjectAnimator.ofFloat(head, "scaleX", 1.0f, 2.1f, 1.0f);
    ObjectAnimator objectAnimator5 = ObjectAnimator.ofFloat(head, "scaleY", 1.0f, 2.1f, 1.0f);

    objectAnimator4.setRepeatCount(ValueAnimator.INFINITE);
    objectAnimator4.setRepeatMode(ValueAnimator.RESTART);
    objectAnimator5.setRepeatCount(ValueAnimator.INFINITE);
    objectAnimator5.setRepeatMode(ValueAnimator.RESTART);


    AnimatorSet animatorSet = new AnimatorSet();
    animatorSet.play(objectAnimator4).with(objectAnimator5);
    animatorSet.setDuration(SUN_PLAY_TIME);
    animatorSet.start();
}