Refactoring filter animation logic. (11ca76a5) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/recents/BakedBezierInterpolator.java

+0 −3

Original line number	Diff line number	Diff line
		@@ -24,9 +24,6 @@ public class BakedBezierInterpolator implements TimeInterpolator {
		* P3 (1.0, 1.0)
		*
		* Values sampled with x at regular intervals between 0 and 1.
		*
		* These values were generated using:
		* ./scripts/bezier_interpolator_values_gen.py 0.4 0.2
		*/
		private static final float[] VALUES = new float[] {
		0.0f, 0.0002f, 0.0009f, 0.0019f, 0.0036f, 0.0059f, 0.0086f, 0.0119f, 0.0157f, 0.0209f,

packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java

+1 −0

Original line number	Diff line number	Diff line
		@@ -83,6 +83,7 @@ public class RecentsConfiguration {
		res.getInteger(R.integer.recents_animate_task_bar_enter_duration);
		}

		/** Updates the system insets */
		public void updateSystemInsets(Rect insets) {
		systemInsets.set(insets);
		}

packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -134,9 +134,9 @@ public class TaskStack {
		/* Notifies when a task has been removed from the stack */
		public void onStackTaskRemoved(TaskStack stack, Task t);
		/** Notifies when the stack was filtered */
		public void onStackFiltered(TaskStack newStack, ArrayList<Task> curStack, Task t);
		public void onStackFiltered(TaskStack newStack, ArrayList<Task> curTasks, Task t);
		/** Notifies when the stack was un-filtered */
		public void onStackUnfiltered(TaskStack newStack, ArrayList<Task> curStack);
		public void onStackUnfiltered(TaskStack newStack, ArrayList<Task> curTasks);
		}

		Context mContext;

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java

+152 −232

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import android.content.Context;
		import android.graphics.Canvas;
		import android.graphics.Rect;
		import android.graphics.Region;
		import android.util.Pair;
		import android.view.LayoutInflater;
		import android.view.MotionEvent;
		import android.view.VelocityTracker;
		@@ -45,6 +46,7 @@ import com.android.systemui.recents.model.Task;
		import com.android.systemui.recents.model.TaskStack;

		import java.util.ArrayList;
		import java.util.HashMap;


		/* The visual representation of a task stack view */
		@@ -76,9 +78,6 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		OverScroller mScroller;
		ObjectAnimator mScrollAnimator;

		// Filtering
		AnimatorSet mFilterChildrenAnimator;

		// Optimizations
		int mHwLayersRefCount;
		int mStackViewsAnimationDuration;
		@@ -645,163 +644,22 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		requestSynchronizeStackViewsWithModel(Utilities.calculateTranslationAnimationDuration(movement));
		}

		@Override
		public void onStackFiltered(TaskStack newStack, final ArrayList<Task> curStack,
		Task filteredTask) {
		// NOTE: This code assumes that the current (unfiltered) stack is a superset of the new
		// (filtered) stack
		// XXX: Use HW Layers

		// Stash the scroll and filtered task for us to restore to when we unfilter
		mStashedScroll = getStackScroll();

		// Compute the transforms of the items in the current stack
		final ArrayList<TaskViewTransform> curTaskTransforms =
		getStackTransforms(curStack, mStashedScroll, null, true);

		// Scroll the item to the top of the stack (sans-peek) rect so that we can see it better
		updateMinMaxScroll(false);
		float overlapHeight = Constants.Values.TaskStackView.StackOverlapPct * mTaskRect.height();
		setStackScrollRaw((int) (newStack.indexOfTask(filteredTask) * overlapHeight));
		boundScrollRaw();

		// Compute the transforms of the items in the new stack after setting the new scroll
		final ArrayList<TaskViewTransform> taskTransforms =
		getStackTransforms(mStack.getTasks(), getStackScroll(), null, true);

		// Animate all of the existing views on screen either out of view (if they are not visible
		// in the new stack) or to their final positions in the new stack
		final ArrayList<TaskView> childrenToReturnToPool = new ArrayList<TaskView>();
		final ArrayList<Task> tasks = mStack.getTasks();
		ArrayList<Animator> childViewAnims = new ArrayList<Animator>();
		int childCount = getChildCount();
		int movement = 0;
		for (int i = 0; i < childCount; i++) {
		TaskView tv = (TaskView) getChildAt(i);
		Task task = tv.getTask();
		TaskViewTransform toTransform;
		int taskIndex = tasks.indexOf(task);

		boolean willBeInvisible = (taskIndex < 0) \|\| !taskTransforms.get(taskIndex).visible;
		if (willBeInvisible) {
		// Compose a new transform that fades and slides the task out of view
		TaskViewTransform fromTransform = curTaskTransforms.get(curStack.indexOf(task));
		toTransform = new TaskViewTransform(fromTransform);
		tv.updateViewPropertiesToTaskTransform(null, fromTransform, 0);
		tv.prepareTaskTransformForFilterTaskHidden(toTransform);

		childrenToReturnToPool.add(tv);
		} else {
		toTransform = taskTransforms.get(taskIndex);

		// Use the movement of the visible views to calculate the duration of the animation
		movement = Math.max(movement,
		Math.abs(toTransform.translationY - (int) tv.getTranslationY()));
		}
		childViewAnims.add(tv.getAnimatorToTaskTransform(toTransform));
		}

		// Cancel the previous animation
		if (mFilterChildrenAnimator != null) {
		mFilterChildrenAnimator.cancel();
		mFilterChildrenAnimator.removeAllListeners();
		}

		// Create a new animation for the existing children
		final RecentsConfiguration config = RecentsConfiguration.getInstance();
		mFilterChildrenAnimator = new AnimatorSet();
		mFilterChildrenAnimator.setDuration(
		Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringCurrentViewsMinAnimDuration));
		mFilterChildrenAnimator.setInterpolator(BakedBezierInterpolator.INSTANCE);
		mFilterChildrenAnimator.addListener(new AnimatorListenerAdapter() {
		boolean isCancelled;

		@Override
		public void onAnimationCancel(Animator animation) {
		isCancelled = true;
		}

		@Override
		public void onAnimationEnd(Animator animation) {
		if (isCancelled) return;

		// Return all the removed children to the view pool
		for (TaskView tv : childrenToReturnToPool) {
		mViewPool.returnViewToPool(tv);
		}

		// For views that are not already visible, animate them in
		ArrayList<Animator> newViewsAnims = new ArrayList<Animator>();
		int taskCount = tasks.size();
		int movement = 0;
		int offset = 0;
		for (int i = 0; i < taskCount; i++) {
		Task task = tasks.get(i);
		TaskViewTransform toTransform = taskTransforms.get(i);
		if (toTransform.visible) {
		TaskViewTransform fromTransform =
		curTaskTransforms.get(curStack.indexOf(task));
		TaskView tv = getChildViewForTask(task);
		if (tv == null) {
		tv = mViewPool.pickUpViewFromPool(task, task);
		// Compose a new transform that fades and slides the new task in
		fromTransform = new TaskViewTransform(toTransform);
		tv.prepareTaskTransformForFilterTaskHidden(fromTransform);
		tv.updateViewPropertiesToTaskTransform(null, fromTransform, 0);

		Animator anim = tv.getAnimatorToTaskTransform(toTransform);
		anim.setStartDelay(offset *
		Constants.Values.TaskStackView.FilterStartDelay);
		newViewsAnims.add(anim);

		// Use the movement of the newly visible views to calculate the duration
		// of the animation
		movement = Math.max(movement, Math.abs(toTransform.translationY -
		fromTransform.translationY));
		offset++;
		}
		}

		// Animate the new views in
		mFilterChildrenAnimator = new AnimatorSet();
		mFilterChildrenAnimator.setDuration(
		Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringNewViewsMinAnimDuration));
		mFilterChildrenAnimator.setInterpolator(BakedBezierInterpolator.INSTANCE);
		mFilterChildrenAnimator.playTogether(newViewsAnims);
		mFilterChildrenAnimator.start();
		}
		invalidate();
		}
		});
		mFilterChildrenAnimator.playTogether(childViewAnims);
		mFilterChildrenAnimator.start();
		}

		@Override
		public void onStackUnfiltered(TaskStack newStack, final ArrayList<Task> curStack) {
		// Compute the transforms of the items in the current stack
		final int curScroll = getStackScroll();
		final ArrayList<TaskViewTransform> curTaskTransforms =
		getStackTransforms(curStack, curScroll, null, true);

		// Restore the stashed scroll
		updateMinMaxScroll(false);
		setStackScrollRaw(mStashedScroll);
		boundScrollRaw();

		// Compute the transforms of the items in the new stack after restoring the stashed scroll
		final ArrayList<TaskViewTransform> taskTransforms =
		getStackTransforms(mStack.getTasks(), getStackScroll(), null, true);

		/**
		* Creates the animations for all the children views that need to be removed or to move views
		* to their un/filtered position when we are un/filtering a stack, and returns the duration
		* for these animations.
		*/
		int getExitTransformsForFilterAnimation(ArrayList<Task> curTasks,
		ArrayList<TaskViewTransform> curTaskTransforms,
		ArrayList<Task> tasks, ArrayList<TaskViewTransform> taskTransforms,
		HashMap<TaskView, Pair<Integer, TaskViewTransform>> childViewTransformsOut,
		ArrayList<TaskView> childrenToRemoveOut,
		RecentsConfiguration config) {
		// Animate all of the existing views out of view (if they are not in the visible range in
		// the new stack) or to their final positions in the new stack
		final ArrayList<TaskView> childrenToRemove = new ArrayList<TaskView>();
		final ArrayList<Task> tasks = mStack.getTasks();
		ArrayList<Animator> childViewAnims = new ArrayList<Animator>();
		int childCount = getChildCount();
		int movement = 0;
		int childCount = getChildCount();
		for (int i = 0; i < childCount; i++) {
		TaskView tv = (TaskView) getChildAt(i);
		Task task = tv.getTask();
		@@ -811,59 +669,37 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		// If the view is no longer visible, then we should just animate it out
		boolean willBeInvisible = taskIndex < 0 \|\| !taskTransforms.get(taskIndex).visible;
		if (willBeInvisible) {
		if (taskIndex < 0) {
		toTransform = curTaskTransforms.get(curTasks.indexOf(task));
		} else {
		toTransform = new TaskViewTransform(taskTransforms.get(taskIndex));
		}
		tv.prepareTaskTransformForFilterTaskVisible(toTransform);
		childrenToRemove.add(tv);
		childrenToRemoveOut.add(tv);
		} else {
		toTransform = taskTransforms.get(taskIndex);
		// Use the movement of the visible views to calculate the duration of the animation
		movement = Math.max(movement, Math.abs(toTransform.translationY -
		(int) tv.getTranslationY()));
		}

		Animator anim = tv.getAnimatorToTaskTransform(toTransform);
		childViewAnims.add(anim);
		childViewTransformsOut.put(tv, new Pair(0, toTransform));
		}

		// Cancel the previous animation
		if (mFilterChildrenAnimator != null) {
		mFilterChildrenAnimator.cancel();
		mFilterChildrenAnimator.removeAllListeners();
		return Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringCurrentViewsMinAnimDuration);
		}

		// Create a new animation for the existing children
		final RecentsConfiguration config = RecentsConfiguration.getInstance();
		mFilterChildrenAnimator = new AnimatorSet();
		mFilterChildrenAnimator.setDuration(
		Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringCurrentViewsMinAnimDuration));
		mFilterChildrenAnimator.setInterpolator(BakedBezierInterpolator.INSTANCE);
		mFilterChildrenAnimator.addListener(new AnimatorListenerAdapter() {
		boolean isCancelled;

		@Override
		public void onAnimationCancel(Animator animation) {
		isCancelled = true;
		}

		@Override
		public void onAnimationEnd(Animator animation) {
		if (isCancelled) return;

		// Return all the removed children to the view pool
		for (TaskView tv : childrenToRemove) {
		mViewPool.returnViewToPool(tv);
		}

		// Increment the hw layers ref count
		addHwLayersRefCount("unfilteredNewViews");

		// For views that are not already visible, animate them in
		ArrayList<Animator> newViewAnims = new ArrayList<Animator>();
		int taskCount = tasks.size();
		int movement = 0;
		/**
		* Creates the animations for all the children views that need to be animated in when we are
		* un/filtering a stack, and returns the duration for these animations.
		*/
		int getEnterTransformsForFilterAnimation(ArrayList<Task> tasks,
		ArrayList<TaskViewTransform> taskTransforms,
		HashMap<TaskView, Pair<Integer, TaskViewTransform>> childViewTransformsOut,
		RecentsConfiguration config) {
		int offset = 0;
		for (int i = 0; i < taskCount; i++) {
		int movement = 0;
		int taskCount = tasks.size();
		for (int i = taskCount - 1; i >= 0; i--) {
		Task task = tasks.get(i);
		TaskViewTransform toTransform = taskTransforms.get(i);
		if (toTransform.visible) {
		@@ -877,38 +713,122 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		tv.prepareTaskTransformForFilterTaskHidden(fromTransform);
		tv.updateViewPropertiesToTaskTransform(null, fromTransform, 0);

		Animator anim = tv.getAnimatorToTaskTransform(toTransform);
		anim.setStartDelay(offset *
		Constants.Values.TaskStackView.FilterStartDelay);
		newViewAnims.add(anim);
		// Use the movement of the newly visible views to calculate the duration
		// of the animation
		int startDelay = offset *
		Constants.Values.TaskStackView.FilterStartDelay;
		childViewTransformsOut.put(tv, new Pair(startDelay, toTransform));

		// Use the movement of the new views to calculate the duration of the animation
		movement = Math.max(movement,
		Math.abs(toTransform.translationY - fromTransform.translationY));
		offset++;
		}
		}
		}
		return Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringNewViewsMinAnimDuration);
		}

		// Run the animation
		mFilterChildrenAnimator = new AnimatorSet();
		mFilterChildrenAnimator.setDuration(
		Utilities.calculateTranslationAnimationDuration(movement,
		config.filteringNewViewsMinAnimDuration));
		mFilterChildrenAnimator.playTogether(newViewAnims);
		mFilterChildrenAnimator.addListener(new AnimatorListenerAdapter() {
		/** Orchestrates the animations of the current child views and any new views. */
		void doFilteringAnimation(ArrayList<Task> curTasks,
		ArrayList<TaskViewTransform> curTaskTransforms,
		final ArrayList<Task> tasks,
		final ArrayList<TaskViewTransform> taskTransforms) {
		final RecentsConfiguration config = RecentsConfiguration.getInstance();

		// Calculate the transforms to animate out all the existing views if they are not in the
		// new visible range (or to their final positions in the stack if they are)
		final ArrayList<TaskView> childrenToRemove = new ArrayList<TaskView>();
		final HashMap<TaskView, Pair<Integer, TaskViewTransform>> childViewTransforms =
		new HashMap<TaskView, Pair<Integer, TaskViewTransform>>();
		int duration = getExitTransformsForFilterAnimation(curTasks, curTaskTransforms, tasks,
		taskTransforms, childViewTransforms, childrenToRemove, config);

		// If all the current views are in the visible range of the new stack, then don't wait for
		// views to animate out and animate all the new views into their place
		final boolean unifyNewViewAnimation = childrenToRemove.isEmpty();
		if (unifyNewViewAnimation) {
		int inDuration = getEnterTransformsForFilterAnimation(tasks, taskTransforms,
		childViewTransforms, config);
		duration = Math.max(duration, inDuration);
		}

		// Animate all the views to their final transforms
		for (final TaskView tv : childViewTransforms.keySet()) {
		Pair<Integer, TaskViewTransform> t = childViewTransforms.get(tv);
		tv.animate().cancel();
		tv.animate()
		.setStartDelay(t.first)
		.withEndAction(new Runnable() {
		@Override
		public void onAnimationEnd(Animator animation) {
		// Decrement the hw layers ref count
		decHwLayersRefCount("unfilteredNewViews");
		public void run() {
		childViewTransforms.remove(tv);
		if (childViewTransforms.isEmpty()) {
		// Return all the removed children to the view pool
		for (TaskView tv : childrenToRemove) {
		mViewPool.returnViewToPool(tv);
		}

		if (!unifyNewViewAnimation) {
		// For views that are not already visible, animate them in
		childViewTransforms.clear();
		int duration = getEnterTransformsForFilterAnimation(tasks,
		taskTransforms, childViewTransforms, config);
		for (final TaskView tv : childViewTransforms.keySet()) {
		Pair<Integer, TaskViewTransform> t = childViewTransforms.get(tv);
		tv.animate().setStartDelay(t.first);
		tv.updateViewPropertiesToTaskTransform(null, t.second, duration);
		}
		}
		}
		});
		mFilterChildrenAnimator.start();
		invalidate();
		}
		});
		mFilterChildrenAnimator.playTogether(childViewAnims);
		mFilterChildrenAnimator.start();
		tv.updateViewPropertiesToTaskTransform(null, t.second, duration);
		}
		}

		@Override
		public void onStackFiltered(TaskStack newStack, final ArrayList<Task> curTasks,
		Task filteredTask) {
		// Stash the scroll and filtered task for us to restore to when we unfilter
		mStashedScroll = getStackScroll();

		// Calculate the current task transforms
		ArrayList<TaskViewTransform> curTaskTransforms =
		getStackTransforms(curTasks, getStackScroll(), null, true);

		// Scroll the item to the top of the stack (sans-peek) rect so that we can see it better
		updateMinMaxScroll(false);
		float overlapHeight = Constants.Values.TaskStackView.StackOverlapPct * mTaskRect.height();
		setStackScrollRaw((int) (newStack.indexOfTask(filteredTask) * overlapHeight));
		boundScrollRaw();

		// Compute the transforms of the items in the new stack after setting the new scroll
		final ArrayList<Task> tasks = mStack.getTasks();
		final ArrayList<TaskViewTransform> taskTransforms =
		getStackTransforms(mStack.getTasks(), getStackScroll(), null, true);

		// Animate
		doFilteringAnimation(curTasks, curTaskTransforms, tasks, taskTransforms);
		}

		@Override
		public void onStackUnfiltered(TaskStack newStack, final ArrayList<Task> curTasks) {
		// Calculate the current task transforms
		final ArrayList<TaskViewTransform> curTaskTransforms =
		getStackTransforms(curTasks, getStackScroll(), null, true);

		// Restore the stashed scroll
		updateMinMaxScroll(false);
		setStackScrollRaw(mStashedScroll);
		boundScrollRaw();

		// Compute the transforms of the items in the new stack after restoring the stashed scroll
		final ArrayList<Task> tasks = mStack.getTasks();
		final ArrayList<TaskViewTransform> taskTransforms =
		getStackTransforms(tasks, getStackScroll(), null, true);

		// Animate
		doFilteringAnimation(curTasks, curTaskTransforms, tasks, taskTransforms);

		// Clear the saved vars
		mStashedScroll = 0;

packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java

+8 −20

Original line number	Diff line number	Diff line
		@@ -16,21 +16,13 @@

		package com.android.systemui.recents.views;

		import android.animation.Animator;
		import android.animation.AnimatorSet;
		import android.animation.ObjectAnimator;
		import android.content.Context;
		import android.graphics.Canvas;
		import android.graphics.Outline;
		import android.graphics.Path;
		import android.graphics.Rect;
		import android.graphics.RectF;
		import android.util.AttributeSet;
		import android.view.View;
		import android.widget.FrameLayout;
		import com.android.systemui.R;
		import com.android.systemui.recents.BakedBezierInterpolator;
		import com.android.systemui.recents.Constants;
		import com.android.systemui.recents.RecentsConfiguration;
		import com.android.systemui.recents.Utilities;
		import com.android.systemui.recents.model.Task;
		@@ -115,18 +107,6 @@ public class TaskView extends FrameLayout implements View.OnClickListener, Task.
		}
		}

		/** Returns an animator to animate this task to the specified transform */
		Animator getAnimatorToTaskTransform(TaskViewTransform toTransform) {
		AnimatorSet anims = new AnimatorSet();
		anims.playTogether(
		ObjectAnimator.ofFloat(this, "translationY", toTransform.translationY),
		ObjectAnimator.ofFloat(this, "scaleX", toTransform.scale),
		ObjectAnimator.ofFloat(this, "scaleY", toTransform.scale),
		ObjectAnimator.ofFloat(this, "alpha", toTransform.alpha)
		);
		return anims;
		}

		/** Resets this view's properties */
		void resetViewProperties() {
		setTranslationX(0f);
		@@ -136,12 +116,20 @@ public class TaskView extends FrameLayout implements View.OnClickListener, Task.
		setAlpha(1f);
		}

		/**
		* When we are un/filtering, this method will set up the transform that we are animating to,
		* in order to hide the task.
		*/
		void prepareTaskTransformForFilterTaskHidden(TaskViewTransform toTransform) {
		// Fade the view out and slide it away
		toTransform.alpha = 0f;
		toTransform.translationY += 200;
		}

		/**
		* When we are un/filtering, this method will setup the transform that we are animating from,
		* in order to show the task.
		*/
		void prepareTaskTransformForFilterTaskVisible(TaskViewTransform fromTransform) {
		// Fade the view in
		fromTransform.alpha = 0f;