private void startSendingAnimation(final RevealView.RevealAnimationListener listener) {
final int width = mFab.getLeft();
final int height = mFab.getTop();
ValueAnimator valueAnimator = new ValueAnimator();
valueAnimator.setDuration(Const.DURATION / 2);
valueAnimator.setObjectValues(new PointF(0, 0));
valueAnimator.setInterpolator(new DecelerateInterpolator());
valueAnimator.setEvaluator(
new TypeEvaluator<PointF>() {
@Override
public PointF evaluate(float fraction, PointF startValue, PointF endValue) {
PointF point = new PointF();
point.x = (width) * (1 - fraction / 2);
point.y = (height) - 0.85f * (height) * (fraction / 2) * (fraction / 2);
return point;
}
});
valueAnimator.start();
valueAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
PointF point = (PointF) animation.getAnimatedValue();
mFab.setX(point.x);
mFab.setY(point.y);
}
});
valueAnimator.addListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mRevealView.reveal(
(int) mFab.getX() + mFab.getWidth() / 2,
(int) mFab.getY() + mFab.getHeight() / 2,
getThemeColor(),
Const.RADIUS,
Const.DURATION,
listener);
}
});
}
