Examples with Keyframe com.nineoldandroids.animation.Keyframe used on opensource projects

Example 11 with Keyframe

use of com.nineoldandroids.animation.Keyframe in project datetimepicker by flavienlaurent.

the class RadialSelectorView method getDisappearAnimator.

public ObjectAnimator getDisappearAnimator() {
    if (!mIsInitialized || !mDrawValuesReady) {
        Log.e(TAG, "RadialSelectorView was not ready for animation.");
        return null;
    }
    Keyframe kf0, kf1, kf2;
    float midwayPoint = 0.2f;
    int duration = 500;
    kf0 = Keyframe.ofFloat(0f, 1);
    kf1 = Keyframe.ofFloat(midwayPoint, mTransitionMidRadiusMultiplier);
    kf2 = Keyframe.ofFloat(1f, mTransitionEndRadiusMultiplier);
    PropertyValuesHolder radiusDisappear = PropertyValuesHolder.ofKeyframe("animationRadiusMultiplier", kf0, kf1, kf2);
    kf0 = Keyframe.ofFloat(0f, 1f);
    kf1 = Keyframe.ofFloat(1f, 0f);
    PropertyValuesHolder fadeOut = PropertyValuesHolder.ofKeyframe("alpha", kf0, kf1);
    ObjectAnimator disappearAnimator = ObjectAnimator.ofPropertyValuesHolder(this, radiusDisappear, fadeOut).setDuration(duration);
    disappearAnimator.addUpdateListener(mInvalidateUpdateListener);
    return disappearAnimator;
}

Example 12 with Keyframe

use of com.nineoldandroids.animation.Keyframe in project datetimepicker by flavienlaurent.

the class RadialSelectorView method getReappearAnimator.

public ObjectAnimator getReappearAnimator() {
    if (!mIsInitialized || !mDrawValuesReady) {
        Log.e(TAG, "RadialSelectorView was not ready for animation.");
        return null;
    }
    Keyframe kf0, kf1, kf2, kf3;
    float midwayPoint = 0.2f;
    int duration = 500;
    // The time points are half of what they would normally be, because this animation is
    // staggered against the disappear so they happen seamlessly. The reappear starts
    // halfway into the disappear.
    float delayMultiplier = 0.25f;
    float transitionDurationMultiplier = 1f;
    float totalDurationMultiplier = transitionDurationMultiplier + delayMultiplier;
    int totalDuration = (int) (duration * totalDurationMultiplier);
    float delayPoint = (delayMultiplier * duration) / totalDuration;
    midwayPoint = 1 - (midwayPoint * (1 - delayPoint));
    kf0 = Keyframe.ofFloat(0f, mTransitionEndRadiusMultiplier);
    kf1 = Keyframe.ofFloat(delayPoint, mTransitionEndRadiusMultiplier);
    kf2 = Keyframe.ofFloat(midwayPoint, mTransitionMidRadiusMultiplier);
    kf3 = Keyframe.ofFloat(1f, 1);
    PropertyValuesHolder radiusReappear = PropertyValuesHolder.ofKeyframe("animationRadiusMultiplier", kf0, kf1, kf2, kf3);
    kf0 = Keyframe.ofFloat(0f, 0f);
    kf1 = Keyframe.ofFloat(delayPoint, 0f);
    kf2 = Keyframe.ofFloat(1f, 1f);
    PropertyValuesHolder fadeIn = PropertyValuesHolder.ofKeyframe("alpha", kf0, kf1, kf2);
    ObjectAnimator reappearAnimator = ObjectAnimator.ofPropertyValuesHolder(this, radiusReappear, fadeIn).setDuration(totalDuration);
    reappearAnimator.addUpdateListener(mInvalidateUpdateListener);
    return reappearAnimator;
}