CODEWITHSUNDEEP
androidandroid-animation
JMRboosties
JMRboosties

Reputation: 15740

Android AccelerateDecelerateInterpolator not working

AnimatorSet set = new AnimatorSet();
set.playTogether(
        ObjectAnimator.ofFloat(mCard, "scaleX", 1f, 0f),
        ObjectAnimator.ofFloat(mCard, "scaleY", 1f, 0f),
        ObjectAnimator.ofFloat(mBackground, "alpha", 1f, 0f)
);

set.setDuration(2000l);
set.setInterpolator(new AccelerateDecelerateInterpolator()); //this isn't working

set.addListener(new AnimatorListenerAdapter() {

    @Override
    public void onAnimationEnd(Animator animation) {
        super.onAnimationEnd(animation);

        //Stuff here
    }

});

set.start();

This seems pretty straightforward to me, I've used interpolators in the past and have not had trouble. However, with this AnimatorSet, if I comment out the setInterpolator line the animation looks exactly the same. As you can see I slowed it down so I could make sure I wasn't just not noticing the effect, but it definitely isn't happening.

What am I doing wrong here?

Upvotes: 1

Views: 792

Answers (1)

telkins
telkins

Reputation: 10550

I believe the default animation is AccelerateDecelerateInterpolator. Looking at the Android sourcecode for Animate, the constructor does this:

public Animation() {
    ensureInterpolator();
}

protected void ensureInterpolator() {
    if (mInterpolator == null) {
        mInterpolator = new AccelerateDecelerateInterpolator();
    }
}

Try using a different interpolator to make sure it's working.

Upvotes: 2

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