private ObjectAnimator createAnimation(View view, AnimationParams params) {
ObjectAnimator animator = null;
if (params.attr != null) {
if (params.paramsFloat != null) {
animator = ObjectAnimator.ofFloat(view, params.attr, params.paramsFloat);
} else if (params.paramsInt != null) {
animator = ObjectAnimator.ofInt(view, params.attr, params.paramsInt);
}
} else {
if (params.paramsFloat != null && params.propertyFloat != null) {
animator = ObjectAnimator.ofFloat(view, params.propertyFloat, params.paramsFloat);
} else if (params.paramsInt != null && params.propertyInt != null) {
animator = ObjectAnimator.ofInt(view, params.propertyInt, params.paramsInt);
}
}
if (animator == null) {
throw new RuntimeException("Can't support this animation params");
}
if (params.evaluator != null) {
animator.setEvaluator(params.evaluator);
}
if (params.interpolator != null) {
animator.setInterpolator(params.interpolator);
}
return animator;
}
public void selectOffButton(Button button) {
TransitionDrawable drawable = (TransitionDrawable) button.getBackground();
drawable.reverseTransition(100);
ObjectAnimator colorAnim = ObjectAnimator.ofInt(button, "textColor", Color.BLACK, Color.WHITE);
colorAnim.setDuration(100);
colorAnim.setEvaluator(new ArgbEvaluator());
colorAnim.start();
}
private void startAnimation() {
final float sunYStart = sunView.getTop();
final float sunYEnd = skyView.getHeight();
final ObjectAnimator heightAnimator =
ObjectAnimator.ofFloat(sunView, "y", sunYStart, sunYEnd).setDuration(3000);
heightAnimator.setInterpolator(new AccelerateInterpolator());
final ObjectAnimator sunsetSkyAnimator =
ObjectAnimator.ofInt(skyView, "backgroundColor", blueSkyColor, sunsetSkyColor)
.setDuration(3000);
sunsetSkyAnimator.setEvaluator(new ArgbEvaluator());
final ObjectAnimator nightSkyAnimator =
ObjectAnimator.ofInt(skyView, "backgroundColor", sunsetSkyColor, nightSkyColor)
.setDuration(1500);
nightSkyAnimator.setEvaluator(new ArgbEvaluator());
final AnimatorSet animatorSet = new AnimatorSet();
animatorSet.play(heightAnimator).with(sunsetSkyAnimator).before(nightSkyAnimator);
animatorSet.start();
}
public void testOfInt() throws Throwable {
Object object = mActivity.view.newBall;
String property = "backgroundColor";
int startColor = mActivity.view.RED;
int endColor = mActivity.view.BLUE;
ObjectAnimator colorAnimator = ObjectAnimator.ofInt(object, property, startColor, endColor);
colorAnimator.setDuration(1000);
colorAnimator.setEvaluator(new ArgbEvaluator());
colorAnimator.setRepeatCount(1);
colorAnimator.setRepeatMode(ValueAnimator.REVERSE);
colorAnimator.start();
startAnimation(mObjectAnimator, colorAnimator);
Thread.sleep(100);
Integer i = (Integer) colorAnimator.getAnimatedValue();
// We are going from less negative value to a more negative value
assertTrue(i.intValue() <= startColor);
assertTrue(endColor <= i.intValue());
}
Animator getCancelAnimator() {
ObjectAnimator backToTransparent1 =
(ObjectAnimator)
AnimatorInflater.loadAnimator(view.getContext(), R.animator.pin_background_end);
ObjectAnimator goDark =
(ObjectAnimator)
AnimatorInflater.loadAnimator(view.getContext(), R.animator.pin_background_go_dark);
ObjectAnimator backToTransparent2 =
(ObjectAnimator)
AnimatorInflater.loadAnimator(view.getContext(), R.animator.pin_background_end);
ViewGroup parent = (ViewGroup) view.getParent();
ArgbEvaluator evaluator = new ArgbEvaluator();
for (ObjectAnimator animator : list(backToTransparent1, goDark, backToTransparent2)) {
animator.setTarget(parent);
animator.setEvaluator(evaluator);
}
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.setTarget(parent);
animatorSet.playSequentially(backToTransparent1, goDark, backToTransparent2);
return animatorSet;
}
public void animateYourself() {
final ViewGroup parent = (ViewGroup) view.getParent();
if (pinBackgroundAnim != null) {
pinBackgroundAnim.end();
pinBackgroundAnim = null;
}
pinBackgroundAnim =
(ObjectAnimator)
AnimatorInflater.loadAnimator(view.getContext(), R.animator.pin_background_start);
pinBackgroundAnim.setTarget(parent);
pinBackgroundAnim.setEvaluator(new ArgbEvaluator());
pinBackgroundAnim.addListener(
new AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
// NO OP
}
@Override
public void onAnimationRepeat(Animator animation) {}
@Override
public void onAnimationEnd(Animator animation) {}
@Override
public void onAnimationCancel(Animator animation) {
endAnimation = getCancelAnimator();
endAnimation.start();
}
});
pinBackgroundAnim.start();
}
public void start() {
ValueAnimator widthAnimation = ValueAnimator.ofInt(mFromWidth, mToWidth);
final GradientDrawable gradientDrawable = mDrawable.getGradientDrawable();
widthAnimation.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
Integer value = (Integer) animation.getAnimatedValue();
int leftOffset;
int rightOffset;
int padding;
if (mFromWidth > mToWidth) {
leftOffset = (mFromWidth - value) / 2;
rightOffset = mFromWidth - leftOffset;
padding = (int) (mPadding * animation.getAnimatedFraction());
} else {
leftOffset = (mToWidth - value) / 2;
rightOffset = mToWidth - leftOffset;
padding = (int) (mPadding - mPadding * animation.getAnimatedFraction());
}
gradientDrawable.setBounds(
leftOffset + padding, padding, rightOffset - padding, mView.getHeight() - padding);
}
});
ObjectAnimator bgColorAnimation =
ObjectAnimator.ofInt(gradientDrawable, "color", mFromColor, mToColor);
bgColorAnimation.setEvaluator(new ArgbEvaluator());
ObjectAnimator strokeColorAnimation =
ObjectAnimator.ofInt(mDrawable, "strokeColor", mFromStrokeColor, mToStrokeColor);
strokeColorAnimation.setEvaluator(new ArgbEvaluator());
ObjectAnimator cornerAnimation =
ObjectAnimator.ofFloat(
gradientDrawable, "cornerRadius", mFromCornerRadius, mToCornerRadius);
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.setDuration(mDuration);
animatorSet.playTogether(
widthAnimation, bgColorAnimation, strokeColorAnimation, cornerAnimation);
animatorSet.addListener(
new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {}
@Override
public void onAnimationEnd(Animator animation) {
if (mListener != null) {
mListener.onAnimationEnd();
}
}
@Override
public void onAnimationCancel(Animator animation) {}
@Override
public void onAnimationRepeat(Animator animation) {}
});
animatorSet.start();
}