Example usage for android.animation ValueAnimator ValueAnimator

Introduction

In this page you can find the example usage for android.animation ValueAnimator ValueAnimator.

Prototype

public ValueAnimator() 

Source Link

Document

Creates a new ValueAnimator object.

Usage

From source file:chao.widget.tablayout.TabLayout.java

/**
 *
 */
private ValueAnimator createAnimator() {
    return new ValueAnimator();
}

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From source file:org.xjy.android.nova.widget.ColorTabLayout.java

private void animateToTab(int newPosition) {
    if (newPosition == Tab.INVALID_POSITION) {
        return;/*from   w ww  .j a  va2s  .  c  o m*/
    }

    if (getWindowToken() == null || !ViewCompat.isLaidOut(this) || mTabStrip.childrenNeedLayout()) {
        // If we don't have a window token, or we haven't been laid out yet just draw the new
        // position now
        setScrollPosition(newPosition, 0f, true);
        return;
    }

    final int startScrollX = getScrollX();
    final int targetScrollX = calculateScrollXForTab(newPosition, 0);

    if (startScrollX != targetScrollX) {
        if (mScrollAnimator == null) {
            mScrollAnimator = new ValueAnimator();
            mScrollAnimator.setInterpolator(new FastOutSlowInInterpolator());
            mScrollAnimator.setDuration(ANIMATION_DURATION);
            mScrollAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                @Override
                public void onAnimationUpdate(ValueAnimator animation) {
                    scrollTo((Integer) animation.getAnimatedValue(), 0);
                }
            });
        }

        mScrollAnimator.setIntValues(startScrollX, targetScrollX);
        mScrollAnimator.start();
    }

    // Now animate the indicator
    mTabStrip.animateIndicatorToPosition(newPosition, ANIMATION_DURATION);
}

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From source file:com.commonsware.cwac.crossport.design.widget.TabLayout.java

private void ensureScrollAnimator() {
    if (mScrollAnimator == null) {
        mScrollAnimator = new ValueAnimator();
        mScrollAnimator.setInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR);
        mScrollAnimator.setDuration(ANIMATION_DURATION);
        mScrollAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override// w  w  w  .j  av a 2  s. c o  m
            public void onAnimationUpdate(ValueAnimator animator) {
                scrollTo((int) animator.getAnimatedValue(), 0);
            }
        });
    }
}

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From source file:android.support.design.widget.RaeTabLayout.java

private void animateToTab(int newPosition) {
    if (newPosition == Tab.INVALID_POSITION) {
        return;//from   w  w  w  .j  ava 2  s  .c  o m
    }

    if (getWindowToken() == null || !ViewCompat.isLaidOut(this) || mTabStrip.childrenNeedLayout()) {
        // If we don't have a window token, or we haven't been laid out yet just draw the new
        // position now
        setScrollPosition(newPosition, 0f, true);
        return;
    }

    final int startScrollX = getScrollX();
    final int targetScrollX = calculateScrollXForTab(newPosition, 0);

    if (startScrollX != targetScrollX) {
        if (this.mScrollAnimator == null) {
            this.mScrollAnimator = new ValueAnimator();
            this.mScrollAnimator.setInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR);
            this.mScrollAnimator.setDuration(300L);
            this.mScrollAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
                public void onAnimationUpdate(ValueAnimator animator) {
                    scrollTo(((Integer) animator.getAnimatedValue()).intValue(), 0);
                }
            });
        }

        mScrollAnimator.setIntValues(startScrollX, targetScrollX);
        mScrollAnimator.start();
    }

    // Now animate the indicator
    mTabStrip.animateIndicatorToPosition(newPosition, ANIMATION_DURATION);
}

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From source file:com.commonsware.cwac.crossport.design.widget.TextInputLayout.java

@VisibleForTesting
void animateToExpansionFraction(final float target) {
    if (mCollapsingTextHelper.getExpansionFraction() == target) {
        return;/*from   w ww  .j a v a  2 s .  c  o m*/
    }
    if (mAnimator == null) {
        mAnimator = new ValueAnimator();
        mAnimator.setInterpolator(AnimationUtils.LINEAR_INTERPOLATOR);
        mAnimator.setDuration(ANIMATION_DURATION);
        mAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animator) {
                mCollapsingTextHelper.setExpansionFraction((float) animator.getAnimatedValue());
            }
        });
    }
    mAnimator.setFloatValues(mCollapsingTextHelper.getExpansionFraction(), target);
    mAnimator.start();
}

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From source file:ticwear.design.widget.CoordinatorLayout.java

private void animateScrollingOffsetTo(final int offset) {
    final int currentOffset = getUnconsumedScrollingOffset();

    if (currentOffset == offset) {
        if (mAnimator != null && mAnimator.isRunning()) {
            mAnimator.cancel();//from   w  w w. j  a  va  2  s  . c  o  m
        }
        return;
    }

    if (mAnimator == null) {
        mAnimator = new ValueAnimator();
        mAnimator.setInterpolator(AnimationUtils.DECELERATE_INTERPOLATOR);
        mAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animator) {
                int offset = (int) animator.getAnimatedValue();
                setScrollingOffset(offset);
            }
        });
    } else {
        mAnimator.cancel();
    }

    mAnimator.setDuration(getResources().getInteger(android.R.integer.config_shortAnimTime));

    mAnimator.setIntValues(currentOffset, offset);
    mAnimator.start();
}

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From source file:cc.flydev.launcher.Page.java

public void onFlingToDelete(PointF vel) {
    final long startTime = AnimationUtils.currentAnimationTimeMillis();

    // NOTE: Because it takes time for the first frame of animation to actually be
    // called and we expect the animation to be a continuation of the fling, we have
    // to account for the time that has elapsed since the fling finished.  And since
    // we don't have a startDelay, we will always get call to update when we call
    // start() (which we want to ignore).
    final TimeInterpolator tInterpolator = new TimeInterpolator() {
        private int mCount = -1;
        private long mStartTime;
        private float mOffset;
        /* Anonymous inner class ctor */ {
            mStartTime = startTime;/*w w w  . jav  a 2 s .  co  m*/
        }

        @Override
        public float getInterpolation(float t) {
            if (mCount < 0) {
                mCount++;
            } else if (mCount == 0) {
                mOffset = Math.min(0.5f, (float) (AnimationUtils.currentAnimationTimeMillis() - mStartTime)
                        / FLING_TO_DELETE_FADE_OUT_DURATION);
                mCount++;
            }
            return Math.min(1f, mOffset + t);
        }
    };

    final Rect from = new Rect();
    final View dragView = mDragView;
    from.left = (int) dragView.getTranslationX();
    from.top = (int) dragView.getTranslationY();
    AnimatorUpdateListener updateCb = new FlingAlongVectorAnimatorUpdateListener(dragView, vel, from, startTime,
            FLING_TO_DELETE_FRICTION);

    final Runnable onAnimationEndRunnable = createPostDeleteAnimationRunnable(dragView);

    // Create and start the animation
    ValueAnimator mDropAnim = new ValueAnimator();
    mDropAnim.setInterpolator(tInterpolator);
    mDropAnim.setDuration(FLING_TO_DELETE_FADE_OUT_DURATION);
    mDropAnim.setFloatValues(0f, 1f);
    mDropAnim.addUpdateListener(updateCb);
    mDropAnim.addListener(new AnimatorListenerAdapter() {
        public void onAnimationEnd(Animator animation) {
            onAnimationEndRunnable.run();
        }
    });
    mDropAnim.start();
    mDeferringForDelete = true;
}

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From source file:saftyos.android.launcher3.Page.java

public void onFlingToDelete(PointF vel) {
    final long startTime = AnimationUtils.currentAnimationTimeMillis();

    // NOTE: Because it takes time for the first frame of animation to actually be
    // called and we expect the animation to be a continuation of the fling, we have
    // to account for the time that has elapsed since the fling finished.  And since
    // we don't have a startDelay, we will always get call to update when we call
    // start() (which we want to ignore).
    final TimeInterpolator tInterpolator = new TimeInterpolator() {
        private int mCount = -1;
        private long mStartTime;
        private float mOffset;

        /* Anonymous inner class ctor */ {
            mStartTime = startTime;//from w w w. j  a v  a 2 s . c  om
        }

        @Override
        public float getInterpolation(float t) {
            if (mCount < 0) {
                mCount++;
            } else if (mCount == 0) {
                mOffset = Math.min(0.5f, (float) (AnimationUtils.currentAnimationTimeMillis() - mStartTime)
                        / FLING_TO_DELETE_FADE_OUT_DURATION);
                mCount++;
            }
            return Math.min(1f, mOffset + t);
        }
    };

    final Rect from = new Rect();
    final View dragView = mDragView;
    from.left = (int) dragView.getTranslationX();
    from.top = (int) dragView.getTranslationY();
    AnimatorUpdateListener updateCb = new FlingAlongVectorAnimatorUpdateListener(dragView, vel, from, startTime,
            FLING_TO_DELETE_FRICTION);

    final Runnable onAnimationEndRunnable = createPostDeleteAnimationRunnable(dragView);

    // Create and start the animation
    ValueAnimator mDropAnim = new ValueAnimator();
    mDropAnim.setInterpolator(tInterpolator);
    mDropAnim.setDuration(FLING_TO_DELETE_FADE_OUT_DURATION);
    mDropAnim.setFloatValues(0f, 1f);
    mDropAnim.addUpdateListener(updateCb);
    mDropAnim.addListener(new AnimatorListenerAdapter() {
        public void onAnimationEnd(Animator animation) {
            onAnimationEndRunnable.run();
        }
    });
    mDropAnim.start();
    mDeferringForDelete = true;
}

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From source file:com.n2hsu.launcher.Page.java

public void onFlingToDelete(PointF vel) {
    final long startTime = AnimationUtils.currentAnimationTimeMillis();

    // NOTE: Because it takes time for the first frame of animation to
    // actually be
    // called and we expect the animation to be a continuation of the fling,
    // we have//w w  w . j av  a  2 s .c o m
    // to account for the time that has elapsed since the fling finished.
    // And since
    // we don't have a startDelay, we will always get call to update when we
    // call
    // start() (which we want to ignore).
    final TimeInterpolator tInterpolator = new TimeInterpolator() {
        private int mCount = -1;
        private long mStartTime;
        private float mOffset;
        /* Anonymous inner class ctor */ {
            mStartTime = startTime;
        }

        @Override
        public float getInterpolation(float t) {
            if (mCount < 0) {
                mCount++;
            } else if (mCount == 0) {
                mOffset = Math.min(0.5f, (float) (AnimationUtils.currentAnimationTimeMillis() - mStartTime)
                        / FLING_TO_DELETE_FADE_OUT_DURATION);
                mCount++;
            }
            return Math.min(1f, mOffset + t);
        }
    };

    final Rect from = new Rect();
    final View dragView = mDragView;
    from.left = (int) dragView.getTranslationX();
    from.top = (int) dragView.getTranslationY();
    AnimatorUpdateListener updateCb = new FlingAlongVectorAnimatorUpdateListener(dragView, vel, from, startTime,
            FLING_TO_DELETE_FRICTION);

    final Runnable onAnimationEndRunnable = createPostDeleteAnimationRunnable(dragView);

    // Create and start the animation
    ValueAnimator mDropAnim = new ValueAnimator();
    mDropAnim.setInterpolator(tInterpolator);
    mDropAnim.setDuration(FLING_TO_DELETE_FADE_OUT_DURATION);
    mDropAnim.setFloatValues(0f, 1f);
    mDropAnim.addUpdateListener(updateCb);
    mDropAnim.addListener(new AnimatorListenerAdapter() {
        public void onAnimationEnd(Animator animation) {
            onAnimationEndRunnable.run();
        }
    });
    mDropAnim.start();
    mDeferringForDelete = true;
}

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