Example usage for android.view.animation AnimationUtils currentAnimationTimeMillis

Introduction

In this page you can find the example usage for android.view.animation AnimationUtils currentAnimationTimeMillis.

Prototype

public static long currentAnimationTimeMillis() 

Source Link

Document

Returns the current animation time in milliseconds.

Usage

From source file:cn.edu.zafu.easemob.imagecoverflow.CoverFlowView.java

private void driveAnimation() {
    float elapsed = (AnimationUtils.currentAnimationTimeMillis() - mStartTime) / 1000.0f;
    if (elapsed >= mDuration)
        endAnimation();/*www.j  av  a 2  s .  c o  m*/
    else {
        updateAnimationAtElapsed(elapsed);
        post(mAnimationRunnable);
    }
}

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From source file:com.dolphinwang.imagecoverflow.CoverFlowView.java

private void startAnimation(double speed) {
    if (mAnimationRunnable != null)
        return;/*  w ww .  j  a v  a 2  s  .  c o  m*/

    double delta = speed * speed / (FRICTION * 2);
    if (speed < 0)
        delta = -delta;
    double nearest = mStartOffset + delta;
    nearest = Math.floor(nearest + 0.5);

    mStartSpeed = (float) Math.sqrt(Math.abs(nearest - mStartOffset) * FRICTION * 2);
    if (nearest < mStartOffset)
        mStartSpeed = -mStartSpeed;

    mDuration = Math.abs(mStartSpeed / FRICTION);
    mStartTime = AnimationUtils.currentAnimationTimeMillis();

    mAnimationRunnable = new Runnable() {
        @Override
        public void run() {
            driveAnimation();
        }
    };
    post(mAnimationRunnable);
}

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From source file:au.com.glassechidna.velocityviewpager.VelocityViewPager.java

/**
 * Like {@link View#scrollBy}, but scroll smoothly instead of immediately.
 *
 * @param x the number of pixels to scroll by on the X axis
 * @param y the number of pixels to scroll by on the Y axis
 * @param velocity the velocity associated with a fling, if applicable. (0 otherwise)
 *///from  w  w w . j a v  a 2s .  co m
void smoothScrollTo(int x, int y, int velocity) {
    if (getChildCount() == 0) {
        // Nothing to do.
        setScrollingCacheEnabled(false);
        return;
    }
    int sx = getScrollX();
    int sy = getScrollY();
    int dx = x - sx;
    int dy = y - sy;
    if (dx == 0 && dy == 0) {
        completeScroll(false);
        populate();
        setScrollState(SCROLL_STATE_IDLE);
        return;
    }

    setScrollingCacheEnabled(true);
    setScrollState(SCROLL_STATE_SETTLING);

    final int width = getClientWidth();
    final int halfWidth = width / 2;
    final float distanceRatio = Math.min(1f, 1.0f * Math.abs(dx) / width);
    final float distance = halfWidth + halfWidth * distanceInfluenceForSnapDuration(distanceRatio);

    int duration = 0;
    velocity = Math.abs(velocity);
    if (velocity > 0) {
        duration = 4 * Math.round(1000 * Math.abs(distance / velocity));
    } else {
        final float pageWidth = width * mAdapter.getPageWidth(mCurItem);
        final float pageDelta = (float) Math.abs(dx) / (pageWidth + mPageMargin);
        duration = (int) ((pageDelta + 1) * 100);
    }
    duration = Math.min(duration, MAX_SETTLE_DURATION);

    mScrollStartTime = AnimationUtils.currentAnimationTimeMillis();
    mScrollDuration = duration;
    mScroller.startScroll(sx, sy, dx, dy, duration);
    ViewCompat.postInvalidateOnAnimation(this);
}

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From source file:com.actionbarsherlock.internal.nineoldandroids.animation.ValueAnimator.java

/**
 * Plays the ValueAnimator in reverse. If the animation is already running,
 * it will stop itself and play backwards from the point reached when reverse was called.
 * If the animation is not currently running, then it will start from the end and
 * play backwards. This behavior is only set for the current animation; future playing
 * of the animation will use the default behavior of playing forward.
 *//*from  ww  w .ja  v a  2s .  com*/
public void reverse() {
    mPlayingBackwards = !mPlayingBackwards;
    if (mPlayingState == RUNNING) {
        long currentTime = AnimationUtils.currentAnimationTimeMillis();
        long currentPlayTime = currentTime - mStartTime;
        long timeLeft = mDuration - currentPlayTime;
        mStartTime = currentTime - timeLeft;
    } else {
        start(true);
    }
}

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From source file:com.apptentive.android.sdk.view.ApptentiveNestedScrollView.java

/**
 * Like {@link View#scrollBy}, but scroll smoothly instead of immediately.
 *
 * @param dx the number of pixels to scroll by on the X axis
 * @param dy the number of pixels to scroll by on the Y axis
 */// w  ww . j  a v  a  2s.co m
public final void smoothScrollBy(int dx, int dy) {
    if (getChildCount() == 0) {
        // Nothing to do.
        return;
    }
    long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
    if (duration > ANIMATED_SCROLL_GAP) {
        final int height = getHeight() - getPaddingBottom() - getPaddingTop();
        final int bottom = getChildAt(0).getHeight();
        final int maxY = Math.max(0, bottom - height);
        final int scrollY = getScrollY();
        dy = Math.max(0, Math.min(scrollY + dy, maxY)) - scrollY;

        mScroller.startScroll(getScrollX(), scrollY, 0, dy);
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        if (!mScroller.isFinished()) {
            mScroller.abortAnimation();
        }
        scrollBy(dx, dy);
    }
    mLastScroll = AnimationUtils.currentAnimationTimeMillis();
}

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From source file:com.peerless2012.twowaynestedscrollview.TwoWayNestedScrollView.java

/**
 * Like {@link View#scrollBy}, but scroll smoothly instead of immediately.
 *
 * @param dx//from   w  ww  . java2 s  .c o  m
 *            the number of pixels to scroll by on the X axis
 * @param dy
 *            the number of pixels to scroll by on the Y axis
 */
public final void smoothScrollBy(int dx, int dy) {
    if (getChildCount() == 0) {
        // Nothing to do.
        return;
    }
    long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
    if (duration > ANIMATED_SCROLL_GAP) {
        if (scrollDirection == DIRECTION_VERTICAL) {
            final int height = getHeight() - getPaddingBottom() - getPaddingTop();
            final int bottom = getChildAt(0).getHeight();
            final int maxY = Math.max(0, bottom - height);
            final int scrollY = getScrollY();
            dy = Math.max(0, Math.min(scrollY + dy, maxY)) - scrollY;

            mScroller.startScroll(getScrollX(), scrollY, 0, dy);
            ViewCompat.postInvalidateOnAnimation(this);
        } else if (scrollDirection == DIRECTION_HORIZONTAL) {
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int right = getChildAt(0).getHeight();
            final int maxX = Math.max(0, right - width);
            final int scrollX = getScrollX();
            dx = Math.max(Math.min(scrollX + dx, maxX), 0) - scrollX;

            mScroller.startScroll(scrollX, getScrollY(), dx, 0);
            ViewCompat.postInvalidateOnAnimation(this);
        }
    } else {
        if (!mScroller.isFinished()) {
            mScroller.abortAnimation();
        }
        scrollBy(dx, dy);
    }
    mLastScroll = AnimationUtils.currentAnimationTimeMillis();
}

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From source file:au.com.glassechidna.velocityviewpager.VelocityViewPager.java

private void recomputeScrollPosition(int width, int oldWidth, int margin, int oldMargin) {
    if (oldWidth > 0 && !mItems.isEmpty()) {
        final int widthWithMargin = width - getPaddingLeft() - getPaddingRight() + margin;
        final int oldWidthWithMargin = oldWidth - getPaddingLeft() - getPaddingRight() + oldMargin;
        final int xpos = getScrollX();
        final float pageOffset = (float) xpos / oldWidthWithMargin;
        final int newOffsetPixels = (int) (pageOffset * widthWithMargin);

        scrollTo(newOffsetPixels, getScrollY());
        if (!mScroller.isFinished()) {
            // We now return to your regularly scheduled scroll, already in progress.
            final int newDuration = Math.max(0,
                    (int) (mScrollDuration - AnimationUtils.currentAnimationTimeMillis() - mScrollStartTime));
            ItemInfo targetInfo = infoForPosition(mCurItem);

            mScrollStartTime = AnimationUtils.currentAnimationTimeMillis();
            mScrollDuration = newDuration;
            mScroller.startScroll(newOffsetPixels, 0, (int) (targetInfo.offset * width), 0, newDuration);
        }//from  w w  w.java2  s .c o  m
    } else {
        final ItemInfo ii = infoForPosition(mCurItem);
        final float scrollOffset = ii != null ? Math.min(ii.offset, mLastOffset) : 0;
        final int scrollPos = (int) (scrollOffset * (width - getPaddingLeft() - getPaddingRight()));
        if (scrollPos != getScrollX()) {
            completeScroll(false);
            scrollTo(scrollPos, getScrollY());
        }
    }
}

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From source file:com.hippo.widget.BothScrollView.java

/**
 * Like {@link View#scrollBy}, but scroll smoothly instead of immediately.
 *
 * @param dx the number of pixels to scroll by on the X axis
 * @param dy the number of pixels to scroll by on the Y axis
 *//*from   w w  w .  j  a  v a  2s .c o m*/
public final void smoothScrollBy(int dx, int dy) {
    if (getChildCount() == 0) {
        // Nothing to do.
        return;
    }
    long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
    if (duration > ANIMATED_SCROLL_GAP) {
        final int width = getWidth() - getPaddingRight() - getPaddingLeft();
        final int height = getHeight() - getPaddingBottom() - getPaddingTop();
        final int right = getChildAt(0).getWidth();
        final int bottom = getChildAt(0).getHeight();
        final int maxX = Math.max(0, right - width);
        final int maxY = Math.max(0, bottom - height);
        final int scrollX = getScrollX();
        final int scrollY = getScrollY();
        dx = Math.max(0, Math.min(scrollX + dx, maxX)) - scrollX;
        dy = Math.max(0, Math.min(scrollY + dy, maxY)) - scrollY;

        mScroller.startScroll(scrollX, scrollY, dx, dy);
        ViewCompat.postInvalidateOnAnimation(this);
    } else {
        if (!mScroller.isFinished()) {
            mScroller.abortAnimation();
        }
        scrollBy(dx, dy);
    }
    mLastScroll = AnimationUtils.currentAnimationTimeMillis();
}

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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 .  j ava 2 s  .c  o  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  ww  .j  av  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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