Examples with Keyframe android.animation.Keyframe used on opensource projects

Example 16 with Keyframe

use of android.animation.Keyframe in project MaterialDateTimePicker by wdullaer.

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;
}

Example 17 with Keyframe

use of android.animation.Keyframe in project MaterialDateTimePicker by wdullaer.

the class Utils method getPulseAnimator.

/**
 * Render an animator to pulsate a view in place.
 * @param labelToAnimate the view to pulsate.
 * @return The animator object. Use .start() to begin.
 */
public static ObjectAnimator getPulseAnimator(View labelToAnimate, float decreaseRatio, float increaseRatio) {
    Keyframe k0 = Keyframe.ofFloat(0f, 1f);
    Keyframe k1 = Keyframe.ofFloat(0.275f, decreaseRatio);
    Keyframe k2 = Keyframe.ofFloat(0.69f, increaseRatio);
    Keyframe k3 = Keyframe.ofFloat(1f, 1f);
    PropertyValuesHolder scaleX = PropertyValuesHolder.ofKeyframe("scaleX", k0, k1, k2, k3);
    PropertyValuesHolder scaleY = PropertyValuesHolder.ofKeyframe("scaleY", k0, k1, k2, k3);
    ObjectAnimator pulseAnimator = ObjectAnimator.ofPropertyValuesHolder(labelToAnimate, scaleX, scaleY);
    pulseAnimator.setDuration(PULSE_ANIMATOR_DURATION);
    return pulseAnimator;
}

Example 18 with Keyframe

use of android.animation.Keyframe in project seven_develop by seven123456.

the class SpriteAnimatorBuilder method holder.

private PropertyValuesHolder holder(float[] fractions, Property property, int[] values) {
    ensurePair(fractions.length, values.length);
    Keyframe[] keyframes = new Keyframe[fractions.length];
    for (int i = 0; i < values.length; i++) {
        keyframes[i] = Keyframe.ofInt(fractions[i], values[i]);
    }
    PropertyValuesHolder valuesHolder = PropertyValuesHolder.ofKeyframe(property, keyframes);
    propertyValuesHolders.add(valuesHolder);
    return valuesHolder;
}

Example 19 with Keyframe

use of android.animation.Keyframe in project seven_develop by seven123456.

the class SpriteAnimatorBuilder method holder.

private PropertyValuesHolder holder(float[] fractions, Property property, float[] values) {
    ensurePair(fractions.length, values.length);
    Keyframe[] keyframes = new Keyframe[fractions.length];
    for (int i = 0; i < values.length; i++) {
        keyframes[i] = Keyframe.ofFloat(fractions[i], values[i]);
    }
    PropertyValuesHolder valuesHolder = PropertyValuesHolder.ofKeyframe(property, keyframes);
    propertyValuesHolders.add(valuesHolder);
    return valuesHolder;
}