Example usage for android.animation ObjectAnimator ofInt

List of usage examples for android.animation ObjectAnimator ofInt

Introduction

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

Prototype

public static <T> ObjectAnimator ofInt(T target, Property<T, Integer> property, int... values) 

Source Link

Document

Constructs and returns an ObjectAnimator that animates between int values.

Usage

From source file:com.viewpagerindicator.TabMovablePageIndicator.java

private void animateScrollWithIndicator(TabView tabView) {
    int scrollPos = tabView.getLeft() - (getWidth() - tabView.getWidth()) / 2;

    AnimatorSet as = new AnimatorSet();
    as.setDuration(300);//from  ww w.  ja va 2  s  .  c  om

    ArrayList<Animator> animations = new ArrayList<Animator>();

    // scroll
    ObjectAnimator animScrollX = ObjectAnimator.ofInt(TabMovablePageIndicator.this, "scrollX", scrollPos);
    animScrollX.setInterpolator(new AccelerateDecelerateInterpolator());
    animations.add(animScrollX);

    // indicator position
    int left = tabView.getLeft();
    //      int width = tabView.getWidth();
    int textWidth = tabView.wordWidth;
    //      int x = left + (width - textWidth) / 2 - mExtendWidth * 2;
    //      x = x < 0 ? 0 : x;

    ObjectAnimator translateXAnim = ObjectAnimator.ofFloat(mIndicator, "translationX", left);
    translateXAnim.setInterpolator(new OvershootInterpolator(0.8f));
    animations.add(translateXAnim);

    // indicator width
    ValueAnimator animWidth = ValueAnimator.ofInt(mIndicator.getLayoutParams().width,
            textWidth + mExtendWidth * 2);
    animWidth.addUpdateListener(new AnimatorUpdateListener() {

        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) mIndicator.getLayoutParams();
            lp.width = (Integer) animation.getAnimatedValue();

            mIndicator.setLayoutParams(lp);
            requestLayout();
        }
    });
    animations.add(animWidth);

    as.playTogether(animations);
    as.start();
}

From source file:com.github.shareme.gwsmaterialuikit.library.viewanimator.AnimationBuilder.java

/**
 * Text color animation builder.//from  w  w  w .jav  a2  s .c o m
 *
 * @param colors the colors
 * @return the animation builder
 */
public AnimationBuilder textColor(int... colors) {
    for (View view : views) {
        if (view instanceof TextView) {
            ObjectAnimator objectAnimator = ObjectAnimator.ofInt(view, "textColor", colors);
            objectAnimator.setEvaluator(new ArgbEvaluator());
            this.animatorList.add(objectAnimator);
        }
    }
    return this;
}

From source file:net.simno.klingar.ui.PlayerController.java

private void toggleQueue() {
    if (isQueueVisible) {
        queueRecyclerView.animate().alpha(0).setDuration(200).withLayer();
        background.setImageAlpha(255);//from ww  w  .  j  a  v  a 2s  .  c o m
        int width = background.getWidth();
        ViewAnimationUtils.createCircularReveal(background, width, 0, 100, width).start();
    } else {
        ObjectAnimator.ofInt(background, "imageAlpha", 0).setDuration(200).start();
        queueRecyclerView.animate().alpha(1).setDuration(0).withLayer();
        int height = queueRecyclerView.getHeight();
        ViewAnimationUtils.createCircularReveal(queueRecyclerView, 0, height, 100, height).start();
    }
    isQueueVisible = !isQueueVisible;
}

From source file:com.android.tv.settings.dialog.old.BaseDialogFragment.java

public void performEntryTransition(final Activity activity, final ViewGroup contentView, int iconResourceId,
        Uri iconResourceUri, final ImageView icon, final TextView title, final TextView description,
        final TextView breadcrumb) {
    // Pull out the root layout of the dialog and set the background drawable, to be
    // faded in during the transition.
    final ViewGroup twoPane = (ViewGroup) contentView.getChildAt(0);
    twoPane.setVisibility(View.INVISIBLE);

    // If the appropriate data is embedded in the intent and there is an icon specified
    // in the content fragment, we animate the icon from its initial position to the final
    // position. Otherwise, we perform a simpler transition in which the ActionFragment
    // slides in and the ContentFragment text fields slide in.
    mIntroAnimationInProgress = true;/* w w w. ja  va 2 s  . co m*/
    List<TransitionImage> images = TransitionImage.readMultipleFromIntent(activity, activity.getIntent());
    TransitionImageAnimation ltransitionAnimation = null;
    final Uri iconUri;
    final int color;
    if (images != null && images.size() > 0) {
        if (iconResourceId != 0) {
            iconUri = Uri.parse(UriUtils.getAndroidResourceUri(activity, iconResourceId));
        } else if (iconResourceUri != null) {
            iconUri = iconResourceUri;
        } else {
            iconUri = null;
        }
        TransitionImage src = images.get(0);
        color = src.getBackground();
        if (iconUri != null) {
            ltransitionAnimation = new TransitionImageAnimation(contentView);
            ltransitionAnimation.addTransitionSource(src);
            ltransitionAnimation.transitionDurationMs(ANIMATE_IN_DURATION).transitionStartDelayMs(0)
                    .interpolator(new DecelerateInterpolator(1f));
        }
    } else {
        iconUri = null;
        color = 0;
    }
    final TransitionImageAnimation transitionAnimation = ltransitionAnimation;

    // Fade out the old activity, and hard cut the new activity.
    activity.overridePendingTransition(R.anim.hard_cut_in, R.anim.fade_out);

    int bgColor = mFragment.getResources().getColor(R.color.dialog_activity_background);
    mBgDrawable.setColor(bgColor);
    mBgDrawable.setAlpha(0);
    twoPane.setBackground(mBgDrawable);

    // If we're animating the icon, we create a new ImageView in which to place the embedded
    // bitmap. We place it in the root layout to match its location in the previous activity.
    mShadowLayer = (FrameLayoutWithShadows) twoPane.findViewById(R.id.shadow_layout);
    if (transitionAnimation != null) {
        transitionAnimation.listener(new TransitionImageAnimation.Listener() {
            @Override
            public void onRemovedView(TransitionImage src, TransitionImage dst) {
                if (icon != null) {
                    //want to make sure that users still see at least the source image
                    // if the dst image is too large to finish downloading before the
                    // animation is done. Check if the icon is not visible. This mean
                    // BaseContentFragement have not finish downloading the image yet.
                    if (icon.getVisibility() != View.VISIBLE) {
                        icon.setImageDrawable(src.getBitmap());
                        int intrinsicWidth = icon.getDrawable().getIntrinsicWidth();
                        LayoutParams lp = icon.getLayoutParams();
                        lp.height = lp.width * icon.getDrawable().getIntrinsicHeight() / intrinsicWidth;
                        icon.setVisibility(View.VISIBLE);
                    }
                    icon.setAlpha(1f);
                }
                if (mShadowLayer != null) {
                    mShadowLayer.setShadowsAlpha(1f);
                }
                onIntroAnimationFinished();
            }
        });
        icon.setAlpha(0f);
        if (mShadowLayer != null) {
            mShadowLayer.setShadowsAlpha(0f);
        }
    }

    // We need to defer the remainder of the animation preparation until the first
    // layout has occurred, as we don't yet know the final location of the icon.
    twoPane.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            twoPane.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            // if we buildLayer() at this time,  the texture is actually not created
            // delay a little so we can make sure all hardware layer is created before
            // animation, in that way we can avoid the jittering of start animation
            twoPane.postOnAnimationDelayed(mEntryAnimationRunnable, ANIMATE_DELAY);
        }

        final Runnable mEntryAnimationRunnable = new Runnable() {
            @Override
            public void run() {
                if (!mFragment.isAdded()) {
                    // We have been detached before this could run, so just bail
                    return;
                }

                twoPane.setVisibility(View.VISIBLE);
                final int secondaryDelay = SLIDE_IN_DISTANCE;

                // Fade in the activity background protection
                ObjectAnimator oa = ObjectAnimator.ofInt(mBgDrawable, "alpha", 255);
                oa.setDuration(ANIMATE_IN_DURATION);
                oa.setStartDelay(secondaryDelay);
                oa.setInterpolator(new DecelerateInterpolator(1.0f));
                oa.start();

                View actionFragmentView = activity.findViewById(mActionAreaId);
                boolean isRtl = ViewCompat.getLayoutDirection(contentView) == ViewCompat.LAYOUT_DIRECTION_RTL;
                int startDist = isRtl ? SLIDE_IN_DISTANCE : -SLIDE_IN_DISTANCE;
                int endDist = isRtl ? -actionFragmentView.getMeasuredWidth()
                        : actionFragmentView.getMeasuredWidth();

                // Fade in and slide in the ContentFragment TextViews from the start.
                prepareAndAnimateView(title, 0, startDist, secondaryDelay, ANIMATE_IN_DURATION,
                        new DecelerateInterpolator(1.0f), false);
                prepareAndAnimateView(breadcrumb, 0, startDist, secondaryDelay, ANIMATE_IN_DURATION,
                        new DecelerateInterpolator(1.0f), false);
                prepareAndAnimateView(description, 0, startDist, secondaryDelay, ANIMATE_IN_DURATION,
                        new DecelerateInterpolator(1.0f), false);

                // Fade in and slide in the ActionFragment from the end.
                prepareAndAnimateView(actionFragmentView, 0, endDist, secondaryDelay, ANIMATE_IN_DURATION,
                        new DecelerateInterpolator(1.0f), false);

                if (icon != null && transitionAnimation != null) {
                    // now we get the icon view in place,  update the transition target
                    TransitionImage target = new TransitionImage();
                    target.setUri(iconUri);
                    target.createFromImageView(icon);
                    if (icon.getBackground() instanceof ColorDrawable) {
                        ColorDrawable d = (ColorDrawable) icon.getBackground();
                        target.setBackground(d.getColor());
                    }
                    transitionAnimation.addTransitionTarget(target);
                    transitionAnimation.startTransition();
                } else if (icon != null) {
                    prepareAndAnimateView(icon, 0, startDist, secondaryDelay, ANIMATE_IN_DURATION,
                            new DecelerateInterpolator(1.0f), true /* is the icon */);
                    if (mShadowLayer != null) {
                        mShadowLayer.setShadowsAlpha(0f);
                    }
                }
            }
        };
    });
}

From source file:com.miz.utils.ViewUtils.java

/**
 * Animates the transition when changing the maxLines
 * attribute of a TextView./*w  ww  .  j  av a  2 s  .  c o m*/
 * @param text
 * @param maxLines
 */
public static void animateTextViewMaxLines(TextView text, int maxLines) {
    try {
        ObjectAnimator animation = ObjectAnimator.ofInt(text, "maxLines", maxLines);
        animation.setInterpolator(new AccelerateInterpolator());
        animation.setDuration(200);
        animation.start();
    } catch (Exception e) {
        // Some devices crash at runtime when using the ObjectAnimator
        text.setMaxLines(maxLines);
    }
}

From source file:com.hannesdorfmann.FeedAdapter.java

private void bindDesignerNewsStory(final Story story, final DesignerNewsStoryHolder holder) {
    holder.title.setText(story.title);/*from  w w w . j  a v a2 s. co  m*/
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            CustomTabActivityHelper.openCustomTab(host,
                    DesignerNewsStory.getCustomTabIntent(host, story, null).build(), Uri.parse(story.url));
        }
    });
    holder.comments.setText(String.valueOf(story.comment_count));
    holder.comments.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View commentsView) {
            final Intent intent = new Intent();
            intent.setClass(host, DesignerNewsStory.class);
            intent.putExtra(DesignerNewsStory.EXTRA_STORY, story);
            final ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(host,
                    Pair.create(holder.itemView, host.getString(R.string.transition_story_title_background)),
                    Pair.create(holder.itemView, host.getString(R.string.transition_story_background)));
            host.startActivity(intent, options.toBundle());
        }
    });
    if (pocketIsInstalled) {
        holder.pocket.setImageAlpha(178); // grumble... no xml setter, grumble...
        holder.pocket.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(final View view) {
                final ImageButton pocketButton = (ImageButton) view;
                // actually add to pocket
                PocketUtils.addToPocket(host, story.url);

                // setup for anim
                holder.itemView.setHasTransientState(true);
                ((ViewGroup) pocketButton.getParent().getParent()).setClipChildren(false);
                final int initialLeft = pocketButton.getLeft();
                final int initialTop = pocketButton.getTop();
                final int translatedLeft = (holder.itemView.getWidth() - pocketButton.getWidth()) / 2;
                final int translatedTop = initialTop
                        - ((holder.itemView.getHeight() - pocketButton.getHeight()) / 2);
                final ArcMotion arc = new ArcMotion();

                // animate the title & pocket icon up, scale the pocket icon up
                PropertyValuesHolder pvhTitleUp = PropertyValuesHolder.ofFloat(View.TRANSLATION_Y,
                        -(holder.itemView.getHeight() / 5));
                PropertyValuesHolder pvhTitleFade = PropertyValuesHolder.ofFloat(View.ALPHA, 0.54f);
                Animator titleMoveFadeOut = ObjectAnimator.ofPropertyValuesHolder(holder.title, pvhTitleUp,
                        pvhTitleFade);

                Animator pocketMoveUp = ObjectAnimator.ofFloat(pocketButton, View.TRANSLATION_X,
                        View.TRANSLATION_Y,
                        arc.getPath(initialLeft, initialTop, translatedLeft, translatedTop));
                PropertyValuesHolder pvhPocketScaleUpX = PropertyValuesHolder.ofFloat(View.SCALE_X, 3f);
                PropertyValuesHolder pvhPocketScaleUpY = PropertyValuesHolder.ofFloat(View.SCALE_Y, 3f);
                Animator pocketScaleUp = ObjectAnimator.ofPropertyValuesHolder(pocketButton, pvhPocketScaleUpX,
                        pvhPocketScaleUpY);
                ObjectAnimator pocketFadeUp = ObjectAnimator.ofInt(pocketButton, ViewUtils.IMAGE_ALPHA, 255);

                AnimatorSet up = new AnimatorSet();
                up.playTogether(titleMoveFadeOut, pocketMoveUp, pocketScaleUp, pocketFadeUp);
                up.setDuration(300);
                up.setInterpolator(
                        AnimationUtils.loadInterpolator(host, android.R.interpolator.fast_out_slow_in));

                // animate everything back into place
                PropertyValuesHolder pvhTitleMoveUp = PropertyValuesHolder.ofFloat(View.TRANSLATION_Y, 0f);
                PropertyValuesHolder pvhTitleFadeUp = PropertyValuesHolder.ofFloat(View.ALPHA, 1f);
                Animator titleMoveFadeIn = ObjectAnimator.ofPropertyValuesHolder(holder.title, pvhTitleMoveUp,
                        pvhTitleFadeUp);
                Animator pocketMoveDown = ObjectAnimator.ofFloat(pocketButton, View.TRANSLATION_X,
                        View.TRANSLATION_Y, arc.getPath(translatedLeft, translatedTop, 0, 0));
                PropertyValuesHolder pvhPocketScaleDownX = PropertyValuesHolder.ofFloat(View.SCALE_X, 1f);
                PropertyValuesHolder pvhPocketScaleDownY = PropertyValuesHolder.ofFloat(View.SCALE_Y, 1f);
                Animator pvhPocketScaleDown = ObjectAnimator.ofPropertyValuesHolder(pocketButton,
                        pvhPocketScaleDownX, pvhPocketScaleDownY);
                ObjectAnimator pocketFadeDown = ObjectAnimator.ofInt(pocketButton, ViewUtils.IMAGE_ALPHA, 138);

                AnimatorSet down = new AnimatorSet();
                down.playTogether(titleMoveFadeIn, pocketMoveDown, pvhPocketScaleDown, pocketFadeDown);
                down.setDuration(300);
                down.setInterpolator(
                        AnimationUtils.loadInterpolator(host, android.R.interpolator.fast_out_slow_in));
                down.setStartDelay(500);

                // play it
                AnimatorSet upDown = new AnimatorSet();
                upDown.playSequentially(up, down);

                // clean up
                upDown.addListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationEnd(Animator animation) {
                        ((ViewGroup) pocketButton.getParent().getParent()).setClipChildren(true);
                        holder.itemView.setHasTransientState(false);
                    }
                });
                upDown.start();
            }
        });
    }
}

From source file:de.dreier.mytargets.utils.transitions.FabTransform.java

@Override
public Animator createAnimator(@NonNull final ViewGroup sceneRoot, final TransitionValues startValues,
        final TransitionValues endValues) {
    if (startValues == null || endValues == null) {
        return null;
    }//from  ww w .j  a v a 2s .c  o  m

    final Rect startBounds = (Rect) startValues.values.get(PROP_BOUNDS);
    final Rect endBounds = (Rect) endValues.values.get(PROP_BOUNDS);

    final boolean fromFab = endBounds.width() > startBounds.width();
    final View view = endValues.view;
    final Rect dialogBounds = fromFab ? endBounds : startBounds;
    final Rect fabBounds = fromFab ? startBounds : endBounds;
    final Interpolator fastOutSlowInInterpolator = new FastOutSlowInInterpolator();
    final long duration = getDuration();
    final long halfDuration = duration / 2;
    final long twoThirdsDuration = duration * 2 / 3;

    if (!fromFab) {
        // Force measure / layout the dialog back to it's original bounds
        view.measure(makeMeasureSpec(startBounds.width(), View.MeasureSpec.EXACTLY),
                makeMeasureSpec(startBounds.height(), View.MeasureSpec.EXACTLY));
        view.layout(startBounds.left, startBounds.top, startBounds.right, startBounds.bottom);
    }

    final int translationX = startBounds.centerX() - endBounds.centerX();
    final int translationY = startBounds.centerY() - endBounds.centerY();
    if (fromFab) {
        view.setTranslationX(translationX);
        view.setTranslationY(translationY);
    }

    // Add a color overlay to fake appearance of the FAB
    final ColorDrawable fabColor = new ColorDrawable(color);
    fabColor.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
    if (!fromFab) {
        fabColor.setAlpha(0);
    }
    view.getOverlay().add(fabColor);

    // Add an icon overlay again to fake the appearance of the FAB
    final Drawable fabIcon = ContextCompat.getDrawable(sceneRoot.getContext(), icon).mutate();
    final int iconLeft = (dialogBounds.width() - fabIcon.getIntrinsicWidth()) / 2;
    final int iconTop = (dialogBounds.height() - fabIcon.getIntrinsicHeight()) / 2;
    fabIcon.setBounds(iconLeft, iconTop, iconLeft + fabIcon.getIntrinsicWidth(),
            iconTop + fabIcon.getIntrinsicHeight());
    if (!fromFab) {
        fabIcon.setAlpha(0);
    }
    view.getOverlay().add(fabIcon);

    // Circular clip from/to the FAB size
    final Animator circularReveal;
    if (fromFab) {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, startBounds.width() / 2,
                (float) Math.hypot(endBounds.width() / 2, endBounds.height() / 2));
        circularReveal.setInterpolator(new FastOutLinearInInterpolator());
    } else {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, (float) Math.hypot(startBounds.width() / 2, startBounds.height() / 2),
                endBounds.width() / 2);
        circularReveal.setInterpolator(new LinearOutSlowInInterpolator());

        // Persist the end clip i.e. stay at FAB size after the reveal has run
        circularReveal.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                view.setOutlineProvider(new ViewOutlineProvider() {
                    @Override
                    public void getOutline(View view, Outline outline) {
                        final int left = (view.getWidth() - fabBounds.width()) / 2;
                        final int top = (view.getHeight() - fabBounds.height()) / 2;
                        outline.setOval(left, top, left + fabBounds.width(), top + fabBounds.height());
                        view.setClipToOutline(true);
                    }
                });
            }
        });
    }
    circularReveal.setDuration(duration);

    // Translate to end position along an arc
    final Animator translate = ObjectAnimator.ofFloat(view, View.TRANSLATION_X, View.TRANSLATION_Y,
            fromFab ? getPathMotion().getPath(translationX, translationY, 0, 0)
                    : getPathMotion().getPath(0, 0, -translationX, -translationY));
    translate.setDuration(duration);
    translate.setInterpolator(fastOutSlowInInterpolator);

    // Fade contents of non-FAB view in/out
    List<Animator> fadeContents = null;
    if (view instanceof ViewGroup) {
        final ViewGroup vg = ((ViewGroup) view);
        fadeContents = new ArrayList<>(vg.getChildCount());
        for (int i = vg.getChildCount() - 1; i >= 0; i--) {
            final View child = vg.getChildAt(i);
            final Animator fade = ObjectAnimator.ofFloat(child, View.ALPHA, fromFab ? 1f : 0f);
            if (fromFab) {
                child.setAlpha(0f);
            }
            fade.setDuration(twoThirdsDuration);
            fade.setInterpolator(fastOutSlowInInterpolator);
            fadeContents.add(fade);
        }
    }

    // Fade in/out the fab color & icon overlays
    final Animator colorFade = ObjectAnimator.ofInt(fabColor, "alpha", fromFab ? 0 : 255);
    final Animator iconFade = ObjectAnimator.ofInt(fabIcon, "alpha", fromFab ? 0 : 255);
    if (!fromFab) {
        colorFade.setStartDelay(halfDuration);
        iconFade.setStartDelay(halfDuration);
    }
    colorFade.setDuration(halfDuration);
    iconFade.setDuration(halfDuration);
    colorFade.setInterpolator(fastOutSlowInInterpolator);
    iconFade.setInterpolator(fastOutSlowInInterpolator);

    // Work around issue with elevation shadows. At the end of the return transition the shared
    // element's shadow is drawn twice (by each activity) which is jarring. This workaround
    // still causes the shadow to snap, but it's better than seeing it double drawn.
    Animator elevation = null;
    if (!fromFab) {
        elevation = ObjectAnimator.ofFloat(view, View.TRANSLATION_Z, -view.getElevation());
        elevation.setDuration(duration);
        elevation.setInterpolator(fastOutSlowInInterpolator);
    }

    // Run all animations together
    final AnimatorSet transition = new AnimatorSet();
    transition.playTogether(circularReveal, translate, colorFade, iconFade);
    transition.playTogether(fadeContents);
    if (elevation != null) {
        transition.play(elevation);
    }
    if (fromFab) {
        transition.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                // Clean up
                view.getOverlay().clear();
            }
        });
    }
    return new NoPauseAnimator(transition);
}

From source file:com.appsummary.luoxf.myappsummary.recyclerView.fastscroll.Views.FastScroller.java

public void show() {
    if (!mAnimatingShow) {
        if (mAutoHideAnimator != null) {
            mAutoHideAnimator.cancel();//  w  w  w  . j a  va 2 s  .  c  o m
        }
        mAutoHideAnimator = ObjectAnimator.ofInt(this, "offsetX", 0);
        mAutoHideAnimator.setInterpolator(new LinearOutSlowInInterpolator());
        mAutoHideAnimator.setDuration(150);
        mAutoHideAnimator.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationCancel(Animator animation) {
                super.onAnimationCancel(animation);
                mAnimatingShow = false;
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                super.onAnimationEnd(animation);
                mAnimatingShow = false;
            }
        });
        mAnimatingShow = true;
        mAutoHideAnimator.start();
    }
    if (mAutoHideEnabled) {
        postAutoHideDelayed();
    } else {
        cancelAutoHide();
    }
}

From source file:com.bachhuberdesign.deckbuildergwent.util.FabTransform.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, final TransitionValues startValues,
        final TransitionValues endValues) {
    if (startValues == null || endValues == null)
        return null;

    final Rect startBounds = (Rect) startValues.values.get(PROP_BOUNDS);
    final Rect endBounds = (Rect) endValues.values.get(PROP_BOUNDS);

    final boolean fromFab = endBounds.width() > startBounds.width();
    final View view = endValues.view;
    final Rect dialogBounds = fromFab ? endBounds : startBounds;
    final Interpolator fastOutSlowInInterpolator = AnimUtils.getFastOutSlowInInterpolator();
    final long duration = getDuration();
    final long halfDuration = duration / 2;
    final long twoThirdsDuration = duration * 2 / 3;

    if (!fromFab) {
        // Force measure / layout the dialog back to it's original bounds
        view.measure(makeMeasureSpec(startBounds.width(), View.MeasureSpec.EXACTLY),
                makeMeasureSpec(startBounds.height(), View.MeasureSpec.EXACTLY));
        view.layout(startBounds.left, startBounds.top, startBounds.right, startBounds.bottom);
    }//  w  w w. j a  v  a2s .co m

    final int translationX = startBounds.centerX() - endBounds.centerX();
    final int translationY = startBounds.centerY() - endBounds.centerY();
    if (fromFab) {
        view.setTranslationX(translationX);
        view.setTranslationY(translationY);
    }

    // Add a color overlay to fake appearance of the FAB
    final ColorDrawable fabColor = new ColorDrawable(color);
    fabColor.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
    if (!fromFab)
        fabColor.setAlpha(0);
    view.getOverlay().add(fabColor);

    // Add an icon overlay again to fake the appearance of the FAB
    final Drawable fabIcon = ContextCompat.getDrawable(sceneRoot.getContext(), icon).mutate();
    final int iconLeft = (dialogBounds.width() - fabIcon.getIntrinsicWidth()) / 2;
    final int iconTop = (dialogBounds.height() - fabIcon.getIntrinsicHeight()) / 2;
    fabIcon.setBounds(iconLeft, iconTop, iconLeft + fabIcon.getIntrinsicWidth(),
            iconTop + fabIcon.getIntrinsicHeight());
    if (!fromFab)
        fabIcon.setAlpha(0);
    view.getOverlay().add(fabIcon);

    // Since the view that's being transition to always seems to be on the top (z-order), we have
    // to make a copy of the "from" view and put it in the "to" view's overlay, then fade it out.
    // There has to be another way to do this, right?
    Drawable dialogView = null;
    if (!fromFab) {
        startValues.view.setDrawingCacheEnabled(true);
        startValues.view.buildDrawingCache();
        Bitmap viewBitmap = startValues.view.getDrawingCache();
        dialogView = new BitmapDrawable(view.getResources(), viewBitmap);
        dialogView.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
        view.getOverlay().add(dialogView);
    }

    // Circular clip from/to the FAB size
    final Animator circularReveal;
    if (fromFab) {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, startBounds.width() / 2,
                (float) Math.hypot(endBounds.width() / 2, endBounds.height() / 2));
        circularReveal.setInterpolator(AnimUtils.getFastOutLinearInInterpolator());
    } else {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, (float) Math.hypot(startBounds.width() / 2, startBounds.height() / 2),
                endBounds.width() / 2);
        circularReveal.setInterpolator(AnimUtils.getLinearOutSlowInInterpolator());

        // Persist the end clip i.e. stay at FAB size after the reveal has run
        circularReveal.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                final ViewOutlineProvider fabOutlineProvider = view.getOutlineProvider();

                view.setOutlineProvider(new ViewOutlineProvider() {
                    boolean hasRun = false;

                    @Override
                    public void getOutline(final View view, Outline outline) {
                        final int left = (view.getWidth() - endBounds.width()) / 2;
                        final int top = (view.getHeight() - endBounds.height()) / 2;

                        outline.setOval(left, top, left + endBounds.width(), top + endBounds.height());

                        if (!hasRun) {
                            hasRun = true;
                            view.setClipToOutline(true);

                            // We have to remove this as soon as it's laid out so we can get the shadow back
                            view.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {
                                @Override
                                public boolean onPreDraw() {
                                    if (view.getWidth() == endBounds.width()
                                            && view.getHeight() == endBounds.height()) {
                                        view.setOutlineProvider(fabOutlineProvider);
                                        view.setClipToOutline(false);
                                        view.getViewTreeObserver().removeOnPreDrawListener(this);
                                        return true;
                                    }

                                    return true;
                                }
                            });
                        }
                    }
                });
            }
        });
    }
    circularReveal.setDuration(duration);

    // Translate to end position along an arc
    final Animator translate = ObjectAnimator.ofFloat(view, View.TRANSLATION_X, View.TRANSLATION_Y,
            fromFab ? getPathMotion().getPath(translationX, translationY, 0, 0)
                    : getPathMotion().getPath(0, 0, -translationX, -translationY));
    translate.setDuration(duration);
    translate.setInterpolator(fastOutSlowInInterpolator);

    // Fade contents of non-FAB view in/out
    List<Animator> fadeContents = null;
    if (view instanceof ViewGroup) {
        final ViewGroup vg = ((ViewGroup) view);
        fadeContents = new ArrayList<>(vg.getChildCount());
        for (int i = vg.getChildCount() - 1; i >= 0; i--) {
            final View child = vg.getChildAt(i);
            final Animator fade = ObjectAnimator.ofFloat(child, View.ALPHA, fromFab ? 1f : 0f);
            if (fromFab) {
                child.setAlpha(0f);
            }
            fade.setDuration(twoThirdsDuration);
            fade.setInterpolator(fastOutSlowInInterpolator);
            fadeContents.add(fade);
        }
    }

    // Fade in/out the fab color & icon overlays
    final Animator colorFade = ObjectAnimator.ofInt(fabColor, "alpha", fromFab ? 0 : 255);
    final Animator iconFade = ObjectAnimator.ofInt(fabIcon, "alpha", fromFab ? 0 : 255);
    if (!fromFab) {
        colorFade.setStartDelay(halfDuration);
        iconFade.setStartDelay(halfDuration);
    }
    colorFade.setDuration(halfDuration);
    iconFade.setDuration(halfDuration);
    colorFade.setInterpolator(fastOutSlowInInterpolator);
    iconFade.setInterpolator(fastOutSlowInInterpolator);

    // Run all animations together
    final AnimatorSet transition = new AnimatorSet();
    transition.playTogether(circularReveal, translate, colorFade, iconFade);
    transition.playTogether(fadeContents);
    if (dialogView != null) {
        final Animator dialogViewFade = ObjectAnimator.ofInt(dialogView, "alpha", 0)
                .setDuration(twoThirdsDuration);
        dialogViewFade.setInterpolator(fastOutSlowInInterpolator);
        transition.playTogether(dialogViewFade);
    }
    transition.addListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {
            // Clean up
            view.getOverlay().clear();

            if (!fromFab) {
                view.setTranslationX(0);
                view.setTranslationY(0);
                view.setTranslationZ(0);

                view.measure(makeMeasureSpec(endBounds.width(), View.MeasureSpec.EXACTLY),
                        makeMeasureSpec(endBounds.height(), View.MeasureSpec.EXACTLY));
                view.layout(endBounds.left, endBounds.top, endBounds.right, endBounds.bottom);
            }

        }
    });
    return new AnimUtils.NoPauseAnimator(transition);
}

From source file:com.n3rditorium.pocketdoggie.transitions.FabTransform.java

@Override
public Animator createAnimator(final ViewGroup sceneRoot, final TransitionValues startValues,
        final TransitionValues endValues) {
    if (startValues == null || endValues == null) {
        return null;
    }//w ww.  j  a  v  a2  s.co m

    final Rect startBounds = (Rect) startValues.values.get(PROP_BOUNDS);
    final Rect endBounds = (Rect) endValues.values.get(PROP_BOUNDS);

    final boolean fromFab = endBounds.width() > startBounds.width();
    final View view = endValues.view;
    final Rect dialogBounds = fromFab ? endBounds : startBounds;
    final Rect fabBounds = fromFab ? startBounds : endBounds;
    final Interpolator fastOutSlowInInterpolator = AnimUtils
            .getFastOutSlowInInterpolator(sceneRoot.getContext());
    final long duration = getDuration();
    final long halfDuration = duration / 2;
    final long twoThirdsDuration = duration * 2 / 3;

    if (!fromFab) {
        // Force measure / layout the dialog back to it's original bounds
        view.measure(makeMeasureSpec(startBounds.width(), View.MeasureSpec.EXACTLY),
                makeMeasureSpec(startBounds.height(), View.MeasureSpec.EXACTLY));
        view.layout(startBounds.left, startBounds.top, startBounds.right, startBounds.bottom);
    }

    final int translationX = startBounds.centerX() - endBounds.centerX();
    final int translationY = startBounds.centerY() - endBounds.centerY();
    if (fromFab) {
        view.setTranslationX(translationX);
        view.setTranslationY(translationY);
    }

    // Add a color overlay to fake appearance of the FAB
    final ColorDrawable fabColor = new ColorDrawable(color);
    fabColor.setBounds(0, 0, dialogBounds.width(), dialogBounds.height());
    if (!fromFab) {
        fabColor.setAlpha(0);
    }
    view.getOverlay().add(fabColor);

    // Add an icon overlay again to fake the appearance of the FAB
    final Drawable fabIcon = ContextCompat.getDrawable(sceneRoot.getContext(), icon).mutate();
    final int iconLeft = (dialogBounds.width() - fabIcon.getIntrinsicWidth()) / 2;
    final int iconTop = (dialogBounds.height() - fabIcon.getIntrinsicHeight()) / 2;
    fabIcon.setBounds(iconLeft, iconTop, iconLeft + fabIcon.getIntrinsicWidth(),
            iconTop + fabIcon.getIntrinsicHeight());
    if (!fromFab) {
        fabIcon.setAlpha(0);
    }
    view.getOverlay().add(fabIcon);

    // Circular clip from/to the FAB size
    final Animator circularReveal;
    if (fromFab) {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, startBounds.width() / 2,
                (float) Math.hypot(endBounds.width() / 2, endBounds.width() / 2));
        circularReveal.setInterpolator(AnimUtils.getFastOutLinearInInterpolator(sceneRoot.getContext()));
    } else {
        circularReveal = ViewAnimationUtils.createCircularReveal(view, view.getWidth() / 2,
                view.getHeight() / 2, (float) Math.hypot(startBounds.width() / 2, startBounds.width() / 2),
                endBounds.width() / 2);
        circularReveal.setInterpolator(AnimUtils.getLinearOutSlowInInterpolator(sceneRoot.getContext()));

        // Persist the end clip i.e. stay at FAB size after the reveal has run
        circularReveal.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                view.setOutlineProvider(new ViewOutlineProvider() {
                    @Override
                    public void getOutline(View view, Outline outline) {
                        final int left = (view.getWidth() - fabBounds.width()) / 2;
                        final int top = (view.getHeight() - fabBounds.height()) / 2;
                        outline.setOval(left, top, left + fabBounds.width(), top + fabBounds.height());
                        view.setClipToOutline(true);
                    }
                });
            }
        });
    }
    circularReveal.setDuration(duration);

    // Translate to end position along an arc
    final Animator translate = ObjectAnimator.ofFloat(view, View.TRANSLATION_X, View.TRANSLATION_Y,
            fromFab ? getPathMotion().getPath(translationX, translationY, 0, 0)
                    : getPathMotion().getPath(0, 0, -translationX, -translationY));
    translate.setDuration(duration);
    translate.setInterpolator(fastOutSlowInInterpolator);

    // Fade contents of non-FAB view in/out
    List<Animator> fadeContents = null;
    if (view instanceof ViewGroup) {
        final ViewGroup vg = ((ViewGroup) view);
        fadeContents = new ArrayList<>(vg.getChildCount());
        for (int i = vg.getChildCount() - 1; i >= 0; i--) {
            final View child = vg.getChildAt(i);
            final Animator fade = ObjectAnimator.ofFloat(child, View.ALPHA, fromFab ? 1f : 0f);
            if (fromFab) {
                child.setAlpha(0f);
            }
            fade.setDuration(twoThirdsDuration);
            fade.setInterpolator(fastOutSlowInInterpolator);
            fadeContents.add(fade);
        }
    }

    // Fade in/out the fab color & icon overlays
    final Animator colorFade = ObjectAnimator.ofInt(fabColor, "alpha", fromFab ? 0 : 255);
    final Animator iconFade = ObjectAnimator.ofInt(fabIcon, "alpha", fromFab ? 0 : 255);
    if (!fromFab) {
        colorFade.setStartDelay(halfDuration);
        iconFade.setStartDelay(halfDuration);
    }
    colorFade.setDuration(halfDuration);
    iconFade.setDuration(halfDuration);
    colorFade.setInterpolator(fastOutSlowInInterpolator);
    iconFade.setInterpolator(fastOutSlowInInterpolator);

    // Work around issue with elevation shadows. At the end of the return transition the shared
    // element's shadow is drawn twice (by each activity) which is jarring. This workaround
    // still causes the shadow to snap, but it's better than seeing it double drawn.
    Animator elevation = null;
    if (!fromFab) {
        elevation = ObjectAnimator.ofFloat(view, View.TRANSLATION_Z, -view.getElevation());
        elevation.setDuration(duration);
        elevation.setInterpolator(fastOutSlowInInterpolator);
    }

    // Run all animations together
    final AnimatorSet transition = new AnimatorSet();
    transition.playTogether(circularReveal, translate, colorFade, iconFade);
    transition.playTogether(fadeContents);
    if (elevation != null) {
        transition.play(elevation);
    }
    if (fromFab) {
        transition.addListener(new AnimatorListenerAdapter() {
            @Override
            public void onAnimationEnd(Animator animation) {
                // Clean up
                view.getOverlay().clear();
            }
        });
    }
    return new AnimUtils.NoPauseAnimator(transition);
}