Java Code Examples for android.animation.Keyframe#ofFloat()

The following examples show how to use android.animation.Keyframe#ofFloat() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: Utils.java From MaterialDateRangePicker with Apache License 2.0

6 votes

/**
 * 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 2

Source File: RadialSelectorView.java From cathode with Apache License 2.0

6 votes

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 3

Source File: RadialSelectorView.java From MaterialDateRangePicker with Apache License 2.0

6 votes

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 4

Source File: ObjectAnimatorValueHolderFragment.java From AndroidAll with Apache License 2.0

6 votes

private PropertyValuesHolder getScaleYValuesHolder() {
    Keyframe frame0 = Keyframe.ofFloat(0f, 1);
    Keyframe frame1 = Keyframe.ofFloat(0.1f, 1.1f);
    Keyframe frame2 = Keyframe.ofFloat(0.2f, 1.1f);
    Keyframe frame3 = Keyframe.ofFloat(0.3f, 1.1f);
    Keyframe frame4 = Keyframe.ofFloat(0.4f, 1.1f);
    Keyframe frame5 = Keyframe.ofFloat(0.5f, 1.1f);
    Keyframe frame6 = Keyframe.ofFloat(0.6f, 1.1f);
    Keyframe frame7 = Keyframe.ofFloat(0.7f, 1.1f);
    Keyframe frame8 = Keyframe.ofFloat(0.8f, 1.1f);
    Keyframe frame9 = Keyframe.ofFloat(0.9f, 1.1f);
    Keyframe frame10 = Keyframe.ofFloat(1, 1);

    return PropertyValuesHolder.ofKeyframe("scaleY",
            frame0, frame1, frame2, frame3, frame4,
            frame5, frame6, frame7, frame8, frame9, frame10);
}

Example 5

Source File: ObjectAnimatorValueHolderFragment.java From AndroidAll with Apache License 2.0

6 votes

private PropertyValuesHolder getScaleXValuesHolder() {
    Keyframe frame0 = Keyframe.ofFloat(0f, 1);
    Keyframe frame1 = Keyframe.ofFloat(0.1f, 1.1f);
    Keyframe frame2 = Keyframe.ofFloat(0.2f, 1.1f);
    Keyframe frame3 = Keyframe.ofFloat(0.3f, 1.1f);
    Keyframe frame4 = Keyframe.ofFloat(0.4f, 1.1f);
    Keyframe frame5 = Keyframe.ofFloat(0.5f, 1.1f);
    Keyframe frame6 = Keyframe.ofFloat(0.6f, 1.1f);
    Keyframe frame7 = Keyframe.ofFloat(0.7f, 1.1f);
    Keyframe frame8 = Keyframe.ofFloat(0.8f, 1.1f);
    Keyframe frame9 = Keyframe.ofFloat(0.9f, 1.1f);
    Keyframe frame10 = Keyframe.ofFloat(1, 1);

    return PropertyValuesHolder.ofKeyframe("scaleX",
            frame0, frame1, frame2, frame3, frame4,
            frame5, frame6, frame7, frame8, frame9, frame10);
}

Example 6

Source File: TimeRadialSelectorView.java From Android-SwitchDateTimePicker with Apache License 2.0

6 votes

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 7

Source File: Utils.java From AssistantBySDK with Apache License 2.0

6 votes

/**
 * 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 8

Source File: Utils.java From StyleableDateTimePicker with MIT License

6 votes

/**
 * 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 9

Source File: RadialSelectorView.java From AlarmOn with Apache License 2.0

6 votes

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 10

Source File: CircleAnimView.java From customview-samples with Apache License 2.0

6 votes

public void startAnim(){
    if(mValueAnimator!=null&&mValueAnimator.isRunning()){
        return;
    }
    Keyframe k1 = Keyframe.ofFloat(0,mMinSize/2);
    Keyframe k2 = Keyframe.ofFloat(0.5f,mMinSize/4);
    Keyframe k3 = Keyframe.ofFloat(1,mMinSize/2);
    PropertyValuesHolder propertyValuesHolder = PropertyValuesHolder.ofKeyframe("scale",k1,k2,k3);
    mValueAnimator = ValueAnimator.ofPropertyValuesHolder(propertyValuesHolder);
    mValueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            mRadius = (float) animation.getAnimatedValue();
            invalidate();
        }
    });
    mValueAnimator.setRepeatCount(ValueAnimator.INFINITE);
    mValueAnimator.setDuration(2000);
    mValueAnimator.start();
}

Example 11

Source File: Utils.java From Blackbulb with GNU General Public License v3.0

6 votes

/**
 * 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 12

Source File: RadialSelectorView.java From AlarmOn with Apache License 2.0

5 votes

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 13

Source File: SpriteAnimatorBuilder.java From RxTools-master with Apache License 2.0

5 votes

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;
}

Example 14

Source File: KeyFrameUtil.java From Flubber with Apache License 2.0

5 votes

public static Keyframe[] getKeyFrames(float[] fractions, float[] values) {
    final Keyframe[] keyframes = new Keyframe[fractions.length];
    for (int i = 0; i < fractions.length; i++) {
        keyframes[i] = Keyframe.ofFloat(fractions[i], values[i]);
    }

    return keyframes;
}

Example 15

Source File: RadialSelectorView.java From date_picker_converter with Apache License 2.0

5 votes

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 16

Source File: RadialSelectorView.java From PersianDateRangePicker with Apache License 2.0

5 votes

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

Source File: RadialTextsView.java From StyleableDateTimePicker with MIT License

4 votes

/**
 * Render the animations for appearing and disappearing.
 */
private void renderAnimations() {
    Keyframe kf0, kf1, kf2, kf3;
    float midwayPoint = 0.2f;
    int duration = 500;

    // Set up animator for disappearing.
    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);

    mDisappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusDisappear, fadeOut).setDuration(duration);
    mDisappearAnimator.addUpdateListener(mInvalidateUpdateListener);


    // Set up animator for reappearing.
    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);

    mReappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusReappear, fadeIn).setDuration(totalDuration);
    mReappearAnimator.addUpdateListener(mInvalidateUpdateListener);
}

Example 18

Source File: RadialTextsView.java From AlarmOn with Apache License 2.0

4 votes

/**
 * Render the animations for appearing and disappearing.
 */
private void renderAnimations() {
    Keyframe kf0, kf1, kf2, kf3;
    float midwayPoint = 0.2f;
    int duration = 500;

    // Set up animator for disappearing.
    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);

    mDisappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusDisappear, fadeOut).setDuration(duration);
    mDisappearAnimator.addUpdateListener(mInvalidateUpdateListener);


    // Set up animator for reappearing.
    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);

    mReappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusReappear, fadeIn).setDuration(totalDuration);
    mReappearAnimator.addUpdateListener(mInvalidateUpdateListener);
}

Example 19

Source File: RadialTextsView.java From MaterialDateRangePicker with Apache License 2.0

4 votes

/**
 * Render the animations for appearing and disappearing.
 */
private void renderAnimations() {
    Keyframe kf0, kf1, kf2, kf3;
    float midwayPoint = 0.2f;
    int duration = 500;

    // Set up animator for disappearing.
    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);

    mDisappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusDisappear, fadeOut).setDuration(duration);
    mDisappearAnimator.addUpdateListener(mInvalidateUpdateListener);


    // Set up animator for reappearing.
    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);

    mReappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusReappear, fadeIn).setDuration(totalDuration);
    mReappearAnimator.addUpdateListener(mInvalidateUpdateListener);
}

Example 20

Source File: RadialTextsView.java From narrate-android with Apache License 2.0

4 votes

/**
 * Render the animations for appearing and disappearing.
 */
private void renderAnimations() {
    Keyframe kf0, kf1, kf2, kf3;
    float midwayPoint = 0.2f;
    int duration = 500;

    // Set up animator for disappearing.
    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);

    mDisappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusDisappear, fadeOut).setDuration(duration);
    mDisappearAnimator.addUpdateListener(mInvalidateUpdateListener);


    // Set up animator for reappearing.
    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);

    mReappearAnimator = ObjectAnimator.ofPropertyValuesHolder(
            this, radiusReappear, fadeIn).setDuration(totalDuration);
    mReappearAnimator.addUpdateListener(mInvalidateUpdateListener);
}