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Android Animations and Transitions Animations Basics Choreograph an Animation

Finally, create a third set to play the first two sets one after another. The alpha and move animations should go first,

I am failing to pick the correct set for the method playSequentially(); my you please help me. I am stuck

CodeChallenge.java
ObjectAnimator fadeInAnimator = ObjectAnimator.ofFloat(button, View.ALPHA, 0, 1);
fadeInAnimator.setDuration(1000);

ObjectAnimator moveUpAnimator = ObjectAnimator.ofInt(button, "top", buttonTop, 16);
moveUpAnimator.setDuration(1000);

ObjectAnimator scaleXAnimator = ObjectAnimator.ofFloat(button, "scaleX", 1.0f, 1.5f);
scaleXAnimator.setDuration(300);

ObjectAnimator scaleYAnimator = ObjectAnimator.ofFloat(button, "scaleY", 1.0f, 1.5f);
scaleYAnimator.setDuration(300);

// Add code below!
AnimatorSet set = new AnimatorSet();
set.playTogether(fadeInAnimator, moveUpAnimator, scaleXAnimator, scaleYAnimator);

AnimatorSet scale = new AnimatorSet();
scale.playTogether(scaleXAnimator, scaleYAnimator);

AnimatorSet animatorSet = new AnimatorSet();
animatorSet.playSequentially(fadeInAnimator, moveUpAnimator);
animatorSet.start();

2 Answers

Seth Kroger
Seth Kroger
56,407 Points

You need to use the two sets you created in the challenge (and the first set needs to be just the fadeIn and move, without the scaling).

// Add code below!
AnimatorSet fadeAndMove = new AnimatorSet();
set.playTogether(fadeInAnimator, moveUpAnimator);

AnimatorSet scale = new AnimatorSet();
scale.playTogether(scaleXAnimator, scaleYAnimator);

AnimatorSet animatorSet = new AnimatorSet();
animatorSet.playSequentially(fadeAndMove, scale);
animatorSet.start();

//hey seth u forgot to use ur object

AnimatorSet fadeAndMove = new AnimatorSet(); fadeAndMove.playTogether(fadeInAnimator, moveUpAnimator);

AnimatorSet scale = new AnimatorSet(); scale.playTogether(scaleXAnimator, scaleYAnimator);

AnimatorSet animatorSet = new AnimatorSet(); animatorSet.playSequentially(fadeAndMove, scale);