| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.bubbles.animation; |
| |
| import android.content.res.Resources; |
| import android.graphics.Point; |
| import android.graphics.PointF; |
| import android.view.View; |
| import android.view.WindowInsets; |
| |
| import androidx.annotation.Nullable; |
| import androidx.dynamicanimation.animation.DynamicAnimation; |
| import androidx.dynamicanimation.animation.SpringForce; |
| |
| import com.android.systemui.R; |
| |
| import com.google.android.collect.Sets; |
| |
| import java.util.Set; |
| |
| /** |
| * Animation controller for bubbles when they're in their expanded state, or animating to/from the |
| * expanded state. This controls the expansion animation as well as bubbles 'dragging out' to be |
| * dismissed. |
| */ |
| public class ExpandedAnimationController |
| extends PhysicsAnimationLayout.PhysicsAnimationController { |
| |
| /** |
| * How much to translate the bubbles when they're animating in/out. This value is multiplied by |
| * the bubble size. |
| */ |
| private static final int ANIMATE_TRANSLATION_FACTOR = 4; |
| |
| /** How much to scale down bubbles when they're animating in/out. */ |
| private static final float ANIMATE_SCALE_PERCENT = 0.5f; |
| |
| /** The stack position to collapse back to in {@link #collapseBackToStack}. */ |
| private PointF mCollapseToPoint; |
| |
| /** Horizontal offset between bubbles, which we need to know to re-stack them. */ |
| private float mStackOffsetPx; |
| /** Spacing between bubbles in the expanded state. */ |
| private float mBubblePaddingPx; |
| /** Size of each bubble. */ |
| private float mBubbleSizePx; |
| /** Height of the status bar. */ |
| private float mStatusBarHeight; |
| /** Size of display. */ |
| private Point mDisplaySize; |
| /** Size of dismiss target at bottom of screen. */ |
| private float mPipDismissHeight; |
| |
| /** Whether the dragged-out bubble is in the dismiss target. */ |
| private boolean mIndividualBubbleWithinDismissTarget = false; |
| |
| private boolean mAnimatingExpand = false; |
| private boolean mAnimatingCollapse = false; |
| private Runnable mAfterExpand; |
| private Runnable mAfterCollapse; |
| private PointF mCollapsePoint; |
| |
| /** |
| * Whether the dragged out bubble is springing towards the touch point, rather than using the |
| * default behavior of moving directly to the touch point. |
| * |
| * This happens when the user's finger exits the dismiss area while the bubble is magnetized to |
| * the center. Since the touch point differs from the bubble location, we need to animate the |
| * bubble back to the touch point to avoid a jarring instant location change from the center of |
| * the target to the touch point just outside the target bounds. |
| */ |
| private boolean mSpringingBubbleToTouch = false; |
| |
| private int mExpandedViewPadding; |
| |
| public ExpandedAnimationController(Point displaySize, int expandedViewPadding) { |
| mDisplaySize = displaySize; |
| mExpandedViewPadding = expandedViewPadding; |
| } |
| |
| /** |
| * Whether the individual bubble has been dragged out of the row of bubbles far enough to cause |
| * the rest of the bubbles to animate to fill the gap. |
| */ |
| private boolean mBubbleDraggedOutEnough = false; |
| |
| /** The bubble currently being dragged out of the row (to potentially be dismissed). */ |
| private View mBubbleDraggingOut; |
| |
| /** |
| * Animates expanding the bubbles into a row along the top of the screen. |
| */ |
| public void expandFromStack(Runnable after) { |
| mAnimatingCollapse = false; |
| mAnimatingExpand = true; |
| mAfterExpand = after; |
| |
| startOrUpdateExpandAnimation(); |
| } |
| |
| /** Animate collapsing the bubbles back to their stacked position. */ |
| public void collapseBackToStack(PointF collapsePoint, Runnable after) { |
| mAnimatingExpand = false; |
| mAnimatingCollapse = true; |
| mAfterCollapse = after; |
| mCollapsePoint = collapsePoint; |
| |
| startOrUpdateCollapseAnimation(); |
| } |
| |
| private void startOrUpdateExpandAnimation() { |
| animationsForChildrenFromIndex( |
| 0, /* startIndex */ |
| (index, animation) -> animation.position(getBubbleLeft(index), getExpandedY())) |
| .startAll(() -> { |
| mAnimatingExpand = false; |
| |
| if (mAfterExpand != null) { |
| mAfterExpand.run(); |
| } |
| |
| mAfterExpand = null; |
| }); |
| } |
| |
| private void startOrUpdateCollapseAnimation() { |
| // Stack to the left if we're going to the left, or right if not. |
| final float sideMultiplier = mLayout.isFirstChildXLeftOfCenter(mCollapsePoint.x) ? -1 : 1; |
| animationsForChildrenFromIndex( |
| 0, /* startIndex */ |
| (index, animation) -> { |
| animation.position( |
| mCollapsePoint.x + (sideMultiplier * index * mStackOffsetPx), |
| mCollapsePoint.y); |
| }) |
| .startAll(() -> { |
| mAnimatingCollapse = false; |
| |
| if (mAfterCollapse != null) { |
| mAfterCollapse.run(); |
| } |
| |
| mAfterCollapse = null; |
| }); |
| } |
| |
| /** Prepares the given bubble to be dragged out. */ |
| public void prepareForBubbleDrag(View bubble) { |
| mLayout.cancelAnimationsOnView(bubble); |
| |
| mBubbleDraggingOut = bubble; |
| mBubbleDraggingOut.setTranslationZ(Short.MAX_VALUE); |
| } |
| |
| /** |
| * Drags an individual bubble to the given coordinates. Bubbles to the right will animate to |
| * take its place once it's dragged out of the row of bubbles, and animate out of the way if the |
| * bubble is dragged back into the row. |
| */ |
| public void dragBubbleOut(View bubbleView, float x, float y) { |
| if (mSpringingBubbleToTouch) { |
| if (mLayout.arePropertiesAnimatingOnView( |
| bubbleView, DynamicAnimation.TRANSLATION_X, DynamicAnimation.TRANSLATION_Y)) { |
| animationForChild(mBubbleDraggingOut) |
| .translationX(x) |
| .translationY(y) |
| .withStiffness(SpringForce.STIFFNESS_HIGH) |
| .start(); |
| } else { |
| mSpringingBubbleToTouch = false; |
| } |
| } |
| |
| if (!mSpringingBubbleToTouch && !mIndividualBubbleWithinDismissTarget) { |
| bubbleView.setTranslationX(x); |
| bubbleView.setTranslationY(y); |
| } |
| |
| final boolean draggedOutEnough = |
| y > getExpandedY() + mBubbleSizePx || y < getExpandedY() - mBubbleSizePx; |
| if (draggedOutEnough != mBubbleDraggedOutEnough) { |
| updateBubblePositions(); |
| mBubbleDraggedOutEnough = draggedOutEnough; |
| } |
| } |
| |
| /** Plays a dismiss animation on the dragged out bubble. */ |
| public void dismissDraggedOutBubble(View bubble, Runnable after) { |
| mIndividualBubbleWithinDismissTarget = false; |
| |
| animationForChild(bubble) |
| .withStiffness(SpringForce.STIFFNESS_HIGH) |
| .scaleX(1.1f) |
| .scaleY(1.1f) |
| .alpha(0f, after) |
| .start(); |
| |
| updateBubblePositions(); |
| } |
| |
| @Nullable public View getDraggedOutBubble() { |
| return mBubbleDraggingOut; |
| } |
| |
| /** Magnets the given bubble to the dismiss target. */ |
| public void magnetBubbleToDismiss( |
| View bubbleView, float velX, float velY, float destY, Runnable after) { |
| mIndividualBubbleWithinDismissTarget = true; |
| mSpringingBubbleToTouch = false; |
| animationForChild(bubbleView) |
| .withStiffness(SpringForce.STIFFNESS_MEDIUM) |
| .withDampingRatio(SpringForce.DAMPING_RATIO_LOW_BOUNCY) |
| .withPositionStartVelocities(velX, velY) |
| .translationX(mLayout.getWidth() / 2f - mBubbleSizePx / 2f) |
| .translationY(destY, after) |
| .start(); |
| } |
| |
| /** |
| * Springs the dragged-out bubble towards the given coordinates and sets flags to have touch |
| * events update the spring's final position until it's settled. |
| */ |
| public void demagnetizeBubbleTo(float x, float y, float velX, float velY) { |
| mIndividualBubbleWithinDismissTarget = false; |
| mSpringingBubbleToTouch = true; |
| |
| animationForChild(mBubbleDraggingOut) |
| .translationX(x) |
| .translationY(y) |
| .withPositionStartVelocities(velX, velY) |
| .withStiffness(SpringForce.STIFFNESS_HIGH) |
| .start(); |
| } |
| |
| /** |
| * Snaps a bubble back to its position within the bubble row, and animates the rest of the |
| * bubbles to accommodate it if it was previously dragged out past the threshold. |
| */ |
| public void snapBubbleBack(View bubbleView, float velX, float velY) { |
| final int index = mLayout.indexOfChild(bubbleView); |
| |
| animationForChildAtIndex(index) |
| .position(getBubbleLeft(index), getExpandedY()) |
| .withPositionStartVelocities(velX, velY) |
| .start(() -> bubbleView.setTranslationZ(0f) /* after */); |
| |
| updateBubblePositions(); |
| } |
| |
| /** Resets bubble drag out gesture flags. */ |
| public void onGestureFinished() { |
| mBubbleDraggedOutEnough = false; |
| mBubbleDraggingOut = null; |
| } |
| |
| /** |
| * Animates the bubbles to {@link #getExpandedY()} position. Used in response to IME showing. |
| */ |
| public void updateYPosition(Runnable after) { |
| if (mLayout == null) return; |
| animationsForChildrenFromIndex( |
| 0, (i, anim) -> anim.translationY(getExpandedY())).startAll(after); |
| } |
| |
| /** |
| * Animates the bubbles, starting at the given index, to the left or right by the given number |
| * of bubble widths. Passing zero for numBubbleWidths will animate the bubbles to their normal |
| * positions. |
| */ |
| private void animateStackByBubbleWidthsStartingFrom(int numBubbleWidths, int startIndex) { |
| animationsForChildrenFromIndex( |
| startIndex, |
| (index, animation) -> |
| animation.translationX(getXForChildAtIndex(index + numBubbleWidths))) |
| .startAll(); |
| } |
| |
| /** The Y value of the row of expanded bubbles. */ |
| public float getExpandedY() { |
| if (mLayout == null || mLayout.getRootWindowInsets() == null) { |
| return 0; |
| } |
| final WindowInsets insets = mLayout.getRootWindowInsets(); |
| return mBubblePaddingPx + Math.max( |
| mStatusBarHeight, |
| insets.getDisplayCutout() != null |
| ? insets.getDisplayCutout().getSafeInsetTop() |
| : 0); |
| } |
| |
| @Override |
| void onActiveControllerForLayout(PhysicsAnimationLayout layout) { |
| final Resources res = layout.getResources(); |
| mStackOffsetPx = res.getDimensionPixelSize(R.dimen.bubble_stack_offset); |
| mBubblePaddingPx = res.getDimensionPixelSize(R.dimen.bubble_padding); |
| mBubbleSizePx = res.getDimensionPixelSize(R.dimen.individual_bubble_size); |
| mStatusBarHeight = |
| res.getDimensionPixelSize(com.android.internal.R.dimen.status_bar_height); |
| mPipDismissHeight = res.getDimensionPixelSize(R.dimen.pip_dismiss_gradient_height); |
| |
| // Ensure that all child views are at 1x scale, and visible, in case they were animating |
| // in. |
| mLayout.setVisibility(View.VISIBLE); |
| animationsForChildrenFromIndex(0 /* startIndex */, (index, animation) -> |
| animation.scaleX(1f).scaleY(1f).alpha(1f)).startAll(); |
| } |
| |
| @Override |
| Set<DynamicAnimation.ViewProperty> getAnimatedProperties() { |
| return Sets.newHashSet( |
| DynamicAnimation.TRANSLATION_X, |
| DynamicAnimation.TRANSLATION_Y, |
| DynamicAnimation.SCALE_X, |
| DynamicAnimation.SCALE_Y, |
| DynamicAnimation.ALPHA); |
| } |
| |
| @Override |
| int getNextAnimationInChain(DynamicAnimation.ViewProperty property, int index) { |
| return NONE; |
| } |
| |
| @Override |
| float getOffsetForChainedPropertyAnimation(DynamicAnimation.ViewProperty property) { |
| return 0; |
| } |
| |
| @Override |
| SpringForce getSpringForce(DynamicAnimation.ViewProperty property, View view) { |
| return new SpringForce() |
| .setDampingRatio(SpringForce.DAMPING_RATIO_LOW_BOUNCY) |
| .setStiffness(SpringForce.STIFFNESS_LOW); |
| } |
| |
| @Override |
| void onChildAdded(View child, int index) { |
| // If a bubble is added while the expand/collapse animations are playing, update the |
| // animation to include the new bubble. |
| if (mAnimatingExpand) { |
| startOrUpdateExpandAnimation(); |
| } else if (mAnimatingCollapse) { |
| startOrUpdateCollapseAnimation(); |
| } else { |
| child.setTranslationX(getXForChildAtIndex(index)); |
| animationForChild(child) |
| .translationY( |
| getExpandedY() - mBubbleSizePx * ANIMATE_TRANSLATION_FACTOR, /* from */ |
| getExpandedY() /* to */) |
| .start(); |
| updateBubblePositions(); |
| } |
| } |
| |
| @Override |
| void onChildRemoved(View child, int index, Runnable finishRemoval) { |
| final PhysicsAnimationLayout.PhysicsPropertyAnimator animator = animationForChild(child); |
| |
| // If we're removing the dragged-out bubble, that means it got dismissed. |
| if (child.equals(mBubbleDraggingOut)) { |
| mBubbleDraggingOut = null; |
| finishRemoval.run(); |
| } else { |
| animator.alpha(0f, finishRemoval /* endAction */) |
| .withStiffness(SpringForce.STIFFNESS_HIGH) |
| .withDampingRatio(SpringForce.DAMPING_RATIO_NO_BOUNCY) |
| .scaleX(1.1f) |
| .scaleY(1.1f) |
| .start(); |
| } |
| |
| // Animate all the other bubbles to their new positions sans this bubble. |
| updateBubblePositions(); |
| } |
| |
| @Override |
| void onChildReordered(View child, int oldIndex, int newIndex) { |
| updateBubblePositions(); |
| } |
| |
| private void updateBubblePositions() { |
| if (mAnimatingExpand || mAnimatingCollapse) { |
| return; |
| } |
| |
| for (int i = 0; i < mLayout.getChildCount(); i++) { |
| final View bubble = mLayout.getChildAt(i); |
| |
| // Don't animate the dragging out bubble, or it'll jump around while being dragged. It |
| // will be snapped to the correct X value after the drag (if it's not dismissed). |
| if (bubble.equals(mBubbleDraggingOut)) { |
| return; |
| } |
| |
| animationForChild(bubble) |
| .translationX(getBubbleLeft(i)) |
| .start(); |
| } |
| } |
| |
| /** Returns the appropriate X translation value for a bubble at the given index. */ |
| private float getXForChildAtIndex(int index) { |
| return mBubblePaddingPx + (mBubbleSizePx + mBubblePaddingPx) * index; |
| } |
| |
| /** |
| * @param index Bubble index in row. |
| * @return Bubble left x from left edge of screen. |
| */ |
| public float getBubbleLeft(int index) { |
| float bubbleLeftFromRowLeft = index * (mBubbleSizePx + mBubblePaddingPx); |
| return getRowLeft() + bubbleLeftFromRowLeft; |
| } |
| |
| private float getRowLeft() { |
| if (mLayout == null) { |
| return 0; |
| } |
| int bubbleCount = mLayout.getChildCount(); |
| |
| // Width calculations. |
| double bubble = bubbleCount * mBubbleSizePx; |
| float gap = (bubbleCount - 1) * mBubblePaddingPx; |
| float row = gap + (float) bubble; |
| |
| float halfRow = row / 2f; |
| float centerScreen = mDisplaySize.x / 2; |
| float rowLeftFromScreenLeft = centerScreen - halfRow; |
| |
| return rowLeftFromScreenLeft; |
| } |
| } |