Simplify keyguard notification count logic (bfc2e3a2) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java

+6 −17

Original line number	Diff line number	Diff line
		@@ -417,7 +417,6 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		private NotificationShelf mShelf;
		private int mMaxDisplayedNotifications = -1;
		private float mKeyguardBottomPadding = -1;
		private float mKeyguardNotificationAvailableSpace = -1;
		@VisibleForTesting int mStatusBarHeight;
		private int mMinInteractionHeight;
		private final Rect mClipRect = new Rect();
		@@ -775,9 +774,11 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		y = (int) mMaxLayoutHeight;
		drawDebugInfo(canvas, y, Color.MAGENTA, /* label= */ "mMaxLayoutHeight = " + y);

		// The space between mTopPadding and mKeyguardBottomPadding determines the available space
		// for notifications on keyguard.
		if (mKeyguardBottomPadding >= 0) {
		y = getHeight() - (int) mKeyguardBottomPadding;
		drawDebugInfo(canvas, y, Color.GRAY,
		drawDebugInfo(canvas, y, Color.RED,
		/* label= */ "getHeight() - mKeyguardBottomPadding = " + y);
		}

		@@ -789,7 +790,7 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		drawDebugInfo(canvas, y, Color.CYAN, /* label= */ "mAmbientState.getStackY() = " + y);

		y = (int) (mAmbientState.getStackY() + mAmbientState.getStackHeight());
		drawDebugInfo(canvas, y, Color.BLUE,
		drawDebugInfo(canvas, y, Color.LTGRAY,
		/* label= */ "mAmbientState.getStackY() + mAmbientState.getStackHeight() = " + y);

		y = (int) mAmbientState.getStackY() + mContentHeight;
		@@ -800,10 +801,6 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		drawDebugInfo(canvas, y, Color.YELLOW,
		/* label= */ "mAmbientState.getStackY() + mIntrinsicContentHeight = " + y);

		y = (int) (mAmbientState.getStackY() + mKeyguardNotificationAvailableSpace);
		drawDebugInfo(canvas, y, Color.RED, /* label= */
		"mAmbientState.getStackY() + mKeyguardNotificationAvailableSpace = " + y);

		drawDebugInfo(canvas, mRoundedRectClippingBottom, Color.DKGRAY,
		/* label= */ "mRoundedRectClippingBottom) = " + y);
		}
		@@ -2267,10 +2264,11 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		@ShadeViewRefactor(RefactorComponent.STATE_RESOLVER)
		private void updateContentHeight() {
		final float scrimTopPadding = mAmbientState.isOnKeyguard() ? 0 : mMinimumPaddings;
		final int shelfIntrinsicHeight = mShelf != null ? mShelf.getIntrinsicHeight() : 0;
		final int height =
		(int) scrimTopPadding + (int) mNotificationStackSizeCalculator.computeHeight(
		/* notificationStackScrollLayout= */ this, mMaxDisplayedNotifications,
		mShelf != null ? mShelf.getIntrinsicHeight() : 0);
		shelfIntrinsicHeight);
		mIntrinsicContentHeight = height;

		// The topPadding can be bigger than the regular padding when qs is expanded, in that
		@@ -4914,15 +4912,6 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
		mKeyguardBottomPadding = keyguardBottomPadding;
		}

		/**
		* For debugging only. Enables to draw a line related to the available size for notifications in
		* keyguard.
		*/
		public void setKeyguardAvailableSpaceForDebug(float keyguardNotificationAvailableSpace) {
		mKeyguardNotificationAvailableSpace = keyguardNotificationAvailableSpace;
		}


		@ShadeViewRefactor(RefactorComponent.SHADE_VIEW)
		public void setShouldShowShelfOnly(boolean shouldShowShelfOnly) {
		mShouldShowShelfOnly = shouldShowShelfOnly;

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java

+0 −6

Original line number	Diff line number	Diff line
		@@ -1305,12 +1305,6 @@ public class NotificationStackScrollLayoutController {
		mView.setKeyguardBottomPadding(keyguardBottomPadding);
		}

		/** For debugging only. */
		public void mKeyguardNotificationAvailableSpaceForDebug(
		float keyguardNotificationAvailableSpace) {
		mView.setKeyguardAvailableSpaceForDebug(keyguardNotificationAvailableSpace);
		}

		public RemoteInputController.Delegate createDelegate() {
		return new RemoteInputController.Delegate() {
		public void setRemoteInputActive(NotificationEntry entry,

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackSizeCalculator.kt

+68 −69

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@ import com.android.systemui.statusbar.notification.row.ExpandableView
		import com.android.systemui.util.children
		import javax.inject.Inject
		import kotlin.math.max
		import kotlin.math.min
		import kotlin.properties.Delegates.notNull

		private const val TAG = "NotificationStackSizeCalculator"
		@@ -51,9 +52,7 @@ constructor(
		*/
		private var maxKeyguardNotifications by notNull<Int>()

		/**
		* Minimum space between two notifications, see [calculateGapAndDividerHeight].
		*/
		/** Minimum space between two notifications, see [calculateGapAndDividerHeight]. */
		private var dividerHeight by notNull<Int>()

		init {
		@@ -61,55 +60,34 @@ constructor(
		}

		/**
		* Given the [availableSpace] constraint, calculates how many notification to show.
		* Given the [totalAvailableSpace] constraint, calculates how many notification to show.
		*
		* This number is only valid in keyguard.
		*
		* @param availableSpace space for notifications. This doesn't include the space for the shelf.
		* @param totalAvailableSpace space for notifications. This includes the space for the shelf.
		*/
		fun computeMaxKeyguardNotifications(
		stack: NotificationStackScrollLayout,
		availableSpace: Float,
		shelfHeight: Float
		totalAvailableSpace: Float,
		shelfIntrinsicHeight: Float
		): Int {
		log {
		"computeMaxKeyguardNotifications(" +
		"availableSpace=$availableSpace shelfHeight=$shelfHeight)"
		val stackHeightSequence = computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight)

		var maxNotifications =
		stackHeightSequence.lastIndexWhile { stackHeight -> stackHeight <= totalAvailableSpace }

		if (onLockscreen()) {
		maxNotifications = min(maxKeyguardNotifications, maxNotifications)
		}

		val children: Sequence<ExpandableView> = stack.childrenSequence
		var remainingSpace: Float = availableSpace
		var count = 0
		var previous: ExpandableView? = null
		val onLockscreen = true
		val showableRows = children.filter { it.isShowable(onLockscreen) }
		val showableRowsCount = showableRows.count()
		log { "\tshowableRowsCount=$showableRowsCount "}

		showableRows.forEachIndexed { i, current ->
		val spaceNeeded = current.spaceNeeded(count, previous, stack, onLockscreen)
		val spaceAfter = remainingSpace - spaceNeeded
		previous = current
		log { "\ti=$i spaceNeeded=$spaceNeeded remainingSpace=$remainingSpace " +
		"spaceAfter=$spaceAfter" }

		if (remainingSpace - spaceNeeded >= 0 && count < maxKeyguardNotifications) {
		count += 1
		remainingSpace -= spaceNeeded
		} else if (remainingSpace - spaceNeeded > -shelfHeight && i == showableRowsCount - 1) {
		log { "Show all notifications. Shelf not needed." }
		// If this is the last one, and it fits using the space shelf would use, then we can
		// display it, as the shelf will not be needed (as all notifications are shown).
		return count + 1
		} else {
		// Could be < 0 if the space available is less than the shelf size. Returns 0 in this case.
		maxNotifications = max(0, maxNotifications)
		log {
		"No more fit. Returning $count. Space used: ${availableSpace - remainingSpace}"
		}
		return count
		}
		"computeMaxKeyguardNotifications(" +
		"availableSpace=$totalAvailableSpace" +
		" shelfHeight=$shelfIntrinsicHeight) -> $maxNotifications"
		}
		log { "All fit. Returning $count" }
		return count
		return maxNotifications
		}

		/**
		@@ -119,47 +97,60 @@ constructor(
		* @param stack stack containing notifications as children.
		* @param maxNotifications Maximum number of notifications. When reached, the others will go
		* into the shelf.
		* @param shelfHeight height of the shelf. It might be zero.
		* @param shelfIntrinsicHeight height of the shelf, without any padding. It might be zero.
		*
		* @return height of the stack, including shelf height, if needed.
		*/
		fun computeHeight(
		stack: NotificationStackScrollLayout,
		maxNotifications: Int,
		shelfHeight: Float
		shelfIntrinsicHeight: Float
		): Float {
		val children: Sequence<ExpandableView> = stack.childrenSequence
		val maxNotificationsArg = infiniteIfNegative(maxNotifications)
		val heightPerMaxNotifications =
		computeHeightPerNotificationLimit(stack, shelfIntrinsicHeight)
		val height =
		heightPerMaxNotifications.elementAtOrElse(maxNotifications) {
		heightPerMaxNotifications.last() // Height with all notifications visible.
		}
		log { "computeHeight(maxNotifications=$maxNotifications) -> $height" }
		return height
		}

		/** The ith result in the sequence is the height with ith max notifications. */
		private fun computeHeightPerNotificationLimit(
		stack: NotificationStackScrollLayout,
		shelfIntrinsicHeight: Float
		): Sequence<Float> = sequence {
		val children = stack.showableChildren().toList()
		var height = 0f
		var previous: ExpandableView? = null
		var count = 0
		val onLockscreen = onLockscreen()

		log { "computeHeight(maxNotification=$maxNotifications, shelf=$shelfHeight" }
		children.filter { it.isShowable(onLockscreen) }.forEach { current ->
		if (count < maxNotificationsArg) {
		val spaceNeeded = current.spaceNeeded(count, previous, stack, onLockscreen)
		log { "\ti=$count spaceNeeded=$spaceNeeded" }
		height += spaceNeeded
		count += 1
		yield(dividerHeight + shelfIntrinsicHeight) // Only shelf.

		children.forEachIndexed { i, currentNotification ->
		height += currentNotification.spaceNeeded(i, previous, stack, onLockscreen)
		previous = currentNotification

		val shelfHeight =
		if (i == children.lastIndex) {
		0f // No shelf needed.
		} else {
		height += current.calculateGapAndDividerHeight(stack, previous, count)
		height += shelfHeight
		log { "returning height with shelf -> $height" }
		return height
		val spaceBeforeShelf =
		calculateGapAndDividerHeight(
		stack, previous = currentNotification, current = children[i + 1], i)
		spaceBeforeShelf + shelfIntrinsicHeight
		}
		previous = current

		yield(height + shelfHeight)
		}
		log { "Returning height without shelf -> $height" }
		return height
		}

		fun updateResources() {
		maxKeyguardNotifications =
		infiniteIfNegative(resources.getInteger(R.integer.keyguard_max_notification_count))

		dividerHeight =
		max(1, resources.getDimensionPixelSize(R.dimen.notification_divider_height))
		dividerHeight = max(1, resources.getDimensionPixelSize(R.dimen.notification_divider_height))
		}

		private val NotificationStackScrollLayout.childrenSequence: Sequence<ExpandableView>
		@@ -180,7 +171,7 @@ constructor(
		} else {
		intrinsicHeight.toFloat()
		}
		size += calculateGapAndDividerHeight(stack, previousView, visibleIndex)
		size += calculateGapAndDividerHeight(stack, previousView, current = this, visibleIndex)
		return size
		}

		@@ -200,18 +191,22 @@ constructor(
		return true
		}

		private fun ExpandableView.calculateGapAndDividerHeight(
		private fun calculateGapAndDividerHeight(
		stack: NotificationStackScrollLayout,
		previous: ExpandableView?,
		current: ExpandableView?,
		visibleIndex: Int
		): Float {
		var height = stack.calculateGapHeight(previous, /* current= */ this, visibleIndex)
		var height = stack.calculateGapHeight(previous, current, visibleIndex)
		if (visibleIndex != 0) {
		height += dividerHeight
		}
		return height
		}

		private fun NotificationStackScrollLayout.showableChildren() =
		this.childrenSequence.filter { it.isShowable(onLockscreen()) }

		/**
		* Can a view be shown on the lockscreen when calculating the number of allowed notifications to
		* show?
		@@ -240,4 +235,8 @@ constructor(
		} else {
		v
		}

		/** Returns the last index where [predicate] returns true, or -1 if it was always false. */
		private fun <T> Sequence<T>.lastIndexWhile(predicate: (T) -> Boolean): Int =
		takeWhile(predicate).count() - 1
		}

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java

+3 −11

Original line number	Diff line number	Diff line
		@@ -317,8 +317,6 @@ public class NotificationPanelViewController extends PanelViewController {
		private boolean mShouldUseSplitNotificationShade;
		// The bottom padding reserved for elements of the keyguard measuring notifications
		private float mKeyguardNotificationBottomPadding;
		// Space available for notifications.
		private float mKeyguardNotificationAvailableSpace;
		// Current max allowed keyguard notifications determined by measuring the panel
		private int mMaxAllowedKeyguardNotifications;

		@@ -1245,8 +1243,6 @@ public class NotificationPanelViewController extends PanelViewController {
		mMaxAllowedKeyguardNotifications);
		mNotificationStackScrollLayoutController.setKeyguardBottomPaddingForDebug(
		mKeyguardNotificationBottomPadding);
		mNotificationStackScrollLayoutController.mKeyguardNotificationAvailableSpaceForDebug(
		mKeyguardNotificationAvailableSpace);
		} else {
		// no max when not on the keyguard
		mNotificationStackScrollLayoutController.setMaxDisplayedNotifications(-1);
		@@ -1468,13 +1464,11 @@ public class NotificationPanelViewController extends PanelViewController {
		* @return the maximum keyguard notifications that can fit on the screen
		*/
		private int computeMaxKeyguardNotifications() {
		int notificationPadding = Math.max(
		1, mResources.getDimensionPixelSize(R.dimen.notification_divider_height));
		float topPadding = mNotificationStackScrollLayoutController.getTopPadding();
		float shelfHeight =
		float shelfIntrinsicHeight =
		mNotificationShelfController.getVisibility() == View.GONE
		? 0
		: mNotificationShelfController.getIntrinsicHeight() + notificationPadding;
		: mNotificationShelfController.getIntrinsicHeight();

		// Padding to add to the bottom of the stack to keep a minimum distance from the top of
		// the lock icon.
		@@ -1493,13 +1487,11 @@ public class NotificationPanelViewController extends PanelViewController {
		float availableSpace =
		mNotificationStackScrollLayoutController.getHeight()
		- topPadding
		- shelfHeight
		- bottomPadding;
		mKeyguardNotificationAvailableSpace = availableSpace;

		return mNotificationStackSizeCalculator.computeMaxKeyguardNotifications(
		mNotificationStackScrollLayoutController.getView(), availableSpace,
		shelfHeight);
		shelfIntrinsicHeight);
		}

		private void updateClock() {

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackSizeCalculatorTest.kt

+55 −81

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package com.android.systemui.statusbar.notification.stack

		import android.annotation.DimenRes
		import android.service.notification.StatusBarNotification
		import android.testing.AndroidTestingRunner
		import android.view.View.VISIBLE
		@@ -27,6 +28,7 @@ import com.android.systemui.statusbar.notification.collection.NotificationEntry
		import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow
		import com.android.systemui.statusbar.notification.row.ExpandableView
		import com.android.systemui.util.mockito.any
		import com.android.systemui.util.mockito.eq
		import com.android.systemui.util.mockito.nullable
		import com.google.common.truth.Truth.assertThat
		import org.junit.Before
		@@ -34,8 +36,8 @@ import org.junit.Test
		import org.junit.runner.RunWith
		import org.mockito.Mock
		import org.mockito.Mockito.mock
		import org.mockito.MockitoAnnotations
		import org.mockito.Mockito.`when` as whenever
		import org.mockito.MockitoAnnotations

		@SmallTest
		@RunWith(AndroidTestingRunner::class)
		@@ -49,17 +51,15 @@ class NotificationStackSizeCalculatorTest : SysuiTestCase() {

		private lateinit var sizeCalculator: NotificationStackSizeCalculator

		private val gapHeight = px(R.dimen.notification_section_divider_height)
		private val dividerHeight = px(R.dimen.notification_divider_height)
		private val shelfHeight = px(R.dimen.notification_shelf_height)
		private val rowHeight = px(R.dimen.notification_max_height)

		@Before
		fun setUp() {
		MockitoAnnotations.initMocks(this)

		whenever(stackLayout.calculateGapHeight(nullable(), nullable(), any()))
		.thenReturn(GAP_HEIGHT)
		with(testableResources) {
		addOverride(R.integer.keyguard_max_notification_count, -1)
		addOverride(R.dimen.notification_divider_height, DIVIDER_HEIGHT.toInt())
		}

		sizeCalculator =
		NotificationStackSizeCalculator(
		statusBarStateController = sysuiStatusBarStateController,
		@@ -68,7 +68,7 @@ class NotificationStackSizeCalculatorTest : SysuiTestCase() {

		@Test
		fun computeMaxKeyguardNotifications_zeroSpace_returnZero() {
		val rows = listOf(createMockRow(height = ROW_HEIGHT))
		val rows = listOf(createMockRow(height = rowHeight))

		val maxNotifications =
		computeMaxKeyguardNotifications(rows, availableSpace = 0f, shelfHeight = 0f)
		@@ -87,105 +87,78 @@ class NotificationStackSizeCalculatorTest : SysuiTestCase() {
		}

		@Test
		fun computeMaxKeyguardNotifications_spaceForOne_returnsOne() {
		val rowHeight = ROW_HEIGHT
		val totalSpaceForEachRow = GAP_HEIGHT + rowHeight
		val shelfHeight =
		totalSpaceForEachRow / 2 // In this way shelf absence will not leave room for another.
		val spaceForOne = totalSpaceForEachRow
		val rows =
		listOf(
		createMockRow(rowHeight),
		createMockRow(rowHeight))
		fun computeMaxKeyguardNotifications_spaceForOneAndShelf_returnsOne() {
		setGapHeight(gapHeight)
		val shelfHeight = rowHeight / 2 // Shelf absence won't leave room for another row.
		val availableSpace =
		listOf(rowHeight + dividerHeight, gapHeight + dividerHeight + shelfHeight).sum()
		val rows = listOf(createMockRow(rowHeight), createMockRow(rowHeight))

		val maxNotifications =
		computeMaxKeyguardNotifications(
		rows, availableSpace = spaceForOne, shelfHeight = shelfHeight)

		assertThat(maxNotifications).isEqualTo(1)
		}

		@Test
		fun computeMaxKeyguardNotifications_spaceForOne_shelfUsableForLastNotification_returnsTwo() {
		val rowHeight = ROW_HEIGHT
		val totalSpaceForEachRow = GAP_HEIGHT + rowHeight
		val shelfHeight = totalSpaceForEachRow + DIVIDER_HEIGHT
		val spaceForOne = totalSpaceForEachRow
		val rows =
		listOf(
		createMockRow(rowHeight),
		createMockRow(rowHeight))

		val maxNotifications =
		computeMaxKeyguardNotifications(
		rows, availableSpace = spaceForOne, shelfHeight = shelfHeight)
		val maxNotifications = computeMaxKeyguardNotifications(rows, availableSpace, shelfHeight)

		assertThat(maxNotifications).isEqualTo(1)
		}

		@Test
		fun computeMaxKeyguardNotifications_spaceForTwo_returnsTwo() {
		val rowHeight = ROW_HEIGHT
		val totalSpaceForEachRow = GAP_HEIGHT + rowHeight
		val spaceForTwo = totalSpaceForEachRow * 2 + DIVIDER_HEIGHT
		val rows =
		setGapHeight(gapHeight)
		val shelfHeight = shelfHeight + dividerHeight
		val availableSpace =
		listOf(
		createMockRow(rowHeight),
		createMockRow(rowHeight),
		createMockRow(rowHeight))
		rowHeight + dividerHeight,
		gapHeight + rowHeight + dividerHeight,
		gapHeight + dividerHeight + shelfHeight)
		.sum()
		val rows =
		listOf(createMockRow(rowHeight), createMockRow(rowHeight), createMockRow(rowHeight))

		val maxNotifications = computeMaxKeyguardNotifications(rows, spaceForTwo, shelfHeight = 0f)
		val maxNotifications = computeMaxKeyguardNotifications(rows, availableSpace, shelfHeight)

		assertThat(maxNotifications).isEqualTo(2)
		}

		@Test
		fun computeHeight_returnsAtMostSpaceAvailable_withGapBeforeShelf() {
		val rowHeight = ROW_HEIGHT
		val shelfHeight = SHELF_HEIGHT
		val totalSpaceForEachRow = GAP_HEIGHT + rowHeight + DIVIDER_HEIGHT
		val availableSpace = totalSpaceForEachRow * 2
		setGapHeight(gapHeight)
		val shelfHeight = shelfHeight
		val availableSpace =
		listOf(
		rowHeight + dividerHeight,
		gapHeight + rowHeight + dividerHeight,
		gapHeight + dividerHeight + shelfHeight)
		.sum()

		// All rows in separate sections (default setup).
		val rows =
		listOf(
		createMockRow(rowHeight),
		createMockRow(rowHeight),
		createMockRow(rowHeight))
		listOf(createMockRow(rowHeight), createMockRow(rowHeight), createMockRow(rowHeight))

		val maxNotifications = computeMaxKeyguardNotifications(rows, availableSpace, shelfHeight)
		assertThat(maxNotifications).isEqualTo(2)

		val height = sizeCalculator.computeHeight(stackLayout, maxNotifications, SHELF_HEIGHT)
		assertThat(height).isAtMost(availableSpace + GAP_HEIGHT + SHELF_HEIGHT)
		val height = sizeCalculator.computeHeight(stackLayout, maxNotifications, this.shelfHeight)
		assertThat(height).isAtMost(availableSpace)
		}

		@Test
		fun computeHeight_returnsAtMostSpaceAvailable_noGapBeforeShelf() {
		val rowHeight = ROW_HEIGHT
		val shelfHeight = SHELF_HEIGHT
		val totalSpaceForEachRow = GAP_HEIGHT + rowHeight + DIVIDER_HEIGHT
		val availableSpace = totalSpaceForEachRow * 1

		fun computeHeight_noGapBeforeShelf_returnsAtMostSpaceAvailable() {
		// Both rows are in the same section.
		whenever(stackLayout.calculateGapHeight(nullable(), nullable(), any()))
		.thenReturn(0f)
		val rows =
		listOf(
		createMockRow(rowHeight),
		createMockRow(rowHeight))
		setGapHeight(0f)
		val rowHeight = rowHeight
		val shelfHeight = shelfHeight
		val availableSpace = listOf(rowHeight + dividerHeight, dividerHeight + shelfHeight).sum()
		val rows = listOf(createMockRow(rowHeight), createMockRow(rowHeight))

		val maxNotifications = computeMaxKeyguardNotifications(rows, availableSpace, shelfHeight)
		assertThat(maxNotifications).isEqualTo(1)

		val height = sizeCalculator.computeHeight(stackLayout, maxNotifications, SHELF_HEIGHT)
		assertThat(height).isAtMost(availableSpace + SHELF_HEIGHT)
		val height = sizeCalculator.computeHeight(stackLayout, maxNotifications, this.shelfHeight)
		assertThat(height).isAtMost(availableSpace)
		}

		private fun computeMaxKeyguardNotifications(
		rows: List<ExpandableView>,
		availableSpace: Float,
		shelfHeight: Float = SHELF_HEIGHT
		shelfHeight: Float = this.shelfHeight
		): Int {
		setupChildren(rows)
		return sizeCalculator.computeMaxKeyguardNotifications(
		@@ -204,9 +177,9 @@ class NotificationStackSizeCalculatorTest : SysuiTestCase() {
		(1..number).map { createMockRow() }.toList()

		private fun createMockRow(
		height: Float = ROW_HEIGHT,
		height: Float = rowHeight,
		isRemoved: Boolean = false,
		visibility: Int = VISIBLE,
		visibility: Int = VISIBLE
		): ExpandableNotificationRow {
		val row = mock(ExpandableNotificationRow::class.java)
		val entry = mock(NotificationEntry::class.java)
		@@ -220,11 +193,12 @@ class NotificationStackSizeCalculatorTest : SysuiTestCase() {
		return row
		}

		/** Default dimensions for tests that don't overwrite them. */
		companion object {
		const val GAP_HEIGHT = 12f
		const val DIVIDER_HEIGHT = 3f
		const val SHELF_HEIGHT = 14f
		const val ROW_HEIGHT = SHELF_HEIGHT * 3
		private fun setGapHeight(height: Float) {
		whenever(stackLayout.calculateGapHeight(nullable(), nullable(), any())).thenReturn(height)
		whenever(stackLayout.calculateGapHeight(nullable(), nullable(), /* visibleIndex= */ eq(0)))
		.thenReturn(0f)
		}

		private fun px(@DimenRes id: Int): Float =
		testableResources.resources.getDimensionPixelSize(id).toFloat()
		}