Fix adjacent task offset distance
Instead of calculating an overall distance for tasks to translate
based on RecentsView width, calculate the distance for the tasks
to the left and right of the midpoint based on how far the first
adjacent tasks in those directions are from being offscreen.
Changes made to make "distance to offscreen" calculations possible:
- Update TaskView curve scale to reach final scale as soon as it is
completely offscreen. Before, it would reach its final scale just
shy of that point (calculations were off).
- As we update RecentsView scale, calculate how much the new scale
will push out tasks that are just offscreen.
- With both above, we can calculate the scale and position of a
TaskView such that it is just offscreen, and interpolate
between its current position and that position.
Tests:
- Task comes in immediately when quick switching from home, and
doesn't shift as you swipe directly upwards.
- When swiping far up from an app, tasks come in from all the way
offscreen, and cover distance appropriately (e.g. if you're
scrolled a bit to the right when you pause, the left adjacent
app will move faster to cover the farther distance).
- Task modalness: entering Select mode now animates adjacent tasks
at the same rate as the scaling up, because they move only the
distance needed to get offscreen (before they moved way too far
and thus seemed to be much faster than the rest of the animation).
Bug: 149934536
Change-Id: Ie3fffe0e5c304cb16e7637f058f5ce72cee40aeb
Merged-In: Ie3fffe0e5c304cb16e7637f058f5ce72cee40aeb
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
index a0af797..131fcbf 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/QuickstepAtomicAnimationFactory.java
@@ -17,7 +17,6 @@
import static android.view.View.VISIBLE;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.LauncherState.BACKGROUND_APP;
import static com.android.launcher3.LauncherState.HINT_STATE;
import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
@@ -52,6 +51,7 @@
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_TRANSLATE;
import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
+import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import android.animation.Animator;
import android.animation.AnimatorSet;
@@ -212,7 +212,7 @@
// Scale up the recents, if it is not coming from the side
RecentsView overview = mActivity.getOverviewPanel();
if (overview.getVisibility() != VISIBLE || overview.getContentAlpha() == 0) {
- SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
+ RECENTS_SCALE_PROPERTY.set(overview, RECENTS_PREPARE_SCALE);
}
}
config.setInterpolator(ANIM_WORKSPACE_FADE, OVERSHOOT_1_2);
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
index 1b439d1..821ada4 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonQuickSwitchTouchController.java
@@ -15,7 +15,6 @@
*/
package com.android.launcher3.uioverrides.touchcontrollers;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.LauncherState.HOTSEAT_ICONS;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.LauncherState.OVERVIEW;
@@ -47,6 +46,7 @@
import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.PEEK;
import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
+import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
import android.animation.Animator;
@@ -244,7 +244,7 @@
final LauncherState toState = OVERVIEW;
// Set RecentView's initial properties.
- SCALE_PROPERTY.set(mRecentsView, fromState.getOverviewScaleAndOffset(mLauncher)[0]);
+ RECENTS_SCALE_PROPERTY.set(mRecentsView, fromState.getOverviewScaleAndOffset(mLauncher)[0]);
ADJACENT_PAGE_OFFSET.set(mRecentsView, 1f);
mRecentsView.setContentAlpha(1);
mRecentsView.setFullscreenProgress(fromState.getOverviewFullscreenProgress());
@@ -266,7 +266,8 @@
// - RecentsView scale
// - RecentsView fullscreenProgress
PendingAnimation yAnim = new PendingAnimation((long) (mYRange * 2));
- yAnim.setFloat(mRecentsView, SCALE_PROPERTY, scaleAndOffset[0], SCALE_DOWN_INTERPOLATOR);
+ yAnim.setFloat(mRecentsView, RECENTS_SCALE_PROPERTY, scaleAndOffset[0],
+ SCALE_DOWN_INTERPOLATOR);
yAnim.setFloat(mRecentsView, FULLSCREEN_PROGRESS,
toState.getOverviewFullscreenProgress(), SCALE_DOWN_INTERPOLATOR);
mYOverviewAnim = yAnim.createPlaybackController();
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsStateController.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
index 3f1e7ba..163c232 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
@@ -15,7 +15,6 @@
*/
package com.android.quickstep.fallback;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.anim.Interpolators.LINEAR;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_MODAL;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
@@ -25,6 +24,7 @@
import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
+import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import static com.android.quickstep.views.RecentsView.TASK_MODALNESS;
import com.android.launcher3.anim.PendingAnimation;
@@ -82,7 +82,7 @@
MultiValueAlpha.VALUE, buttonAlpha, LINEAR);
float[] scaleAndOffset = state.getOverviewScaleAndOffset(mActivity);
- setter.setFloat(mRecentsView, SCALE_PROPERTY, scaleAndOffset[0],
+ setter.setFloat(mRecentsView, RECENTS_SCALE_PROPERTY, scaleAndOffset[0],
config.getInterpolator(ANIM_OVERVIEW_SCALE, LINEAR));
setter.setFloat(mRecentsView, ADJACENT_PAGE_OFFSET, scaleAndOffset[1],
config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_X, LINEAR));
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
index 46013d3..165ca30 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -31,7 +31,6 @@
import android.util.IntProperty;
import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.anim.PendingAnimation;
import com.android.launcher3.touch.PagedOrientationHandler;
@@ -92,7 +91,6 @@
public final AnimatedFloat recentsViewScale = new AnimatedFloat();
public final AnimatedFloat fullScreenProgress = new AnimatedFloat();
private final ScrollState mScrollState = new ScrollState();
- private final int mPageSpacing;
// Cached calculations
private boolean mLayoutValid = false;
@@ -105,7 +103,6 @@
mOrientationState = new RecentsOrientedState(context, sizeStrategy, i -> { });
mCurrentFullscreenParams = new FullscreenDrawParams(context);
- mPageSpacing = context.getResources().getDimensionPixelSize(R.dimen.recents_page_spacing);
}
/**
@@ -251,7 +248,8 @@
int start = mOrientationState.getOrientationHandler()
.getPrimaryValue(mTaskRect.left, mTaskRect.top);
mScrollState.screenCenter = start + mScrollState.scroll + mScrollState.halfPageSize;
- mScrollState.updateInterpolation(start, mPageSpacing);
+ mScrollState.pageParentScale = recentsViewScale.value;
+ mScrollState.updateInterpolation(start);
mCurveScale = TaskView.getCurveScaleForInterpolation(mScrollState.linearInterpolation);
}
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index 26e6d87..9c93fed 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -22,7 +22,6 @@
import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_PARAMS;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.LauncherAnimUtils.VIEW_ALPHA;
import static com.android.launcher3.LauncherState.BACKGROUND_APP;
import static com.android.launcher3.Utilities.EDGE_NAV_BAR;
@@ -62,6 +61,7 @@
import android.graphics.Point;
import android.graphics.PointF;
import android.graphics.Rect;
+import android.graphics.RectF;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
@@ -209,6 +209,23 @@
}
};
+ /** Same as normal SCALE_PROPERTY, but also updates page offsets that depend on this scale. */
+ public static final FloatProperty<RecentsView> RECENTS_SCALE_PROPERTY =
+ new FloatProperty<RecentsView>("recentsScale") {
+ @Override
+ public void setValue(RecentsView view, float scale) {
+ view.setScaleX(scale);
+ view.setScaleY(scale);
+ view.mLastComputedTaskPushOutDistance = null;
+ view.updatePageOffsets();
+ }
+
+ @Override
+ public Float get(RecentsView view) {
+ return view.getScaleX();
+ }
+ };
+
protected RecentsOrientedState mOrientationState;
protected final BaseActivityInterface mSizeStrategy;
protected RecentsAnimationController mRecentsAnimationController;
@@ -216,8 +233,12 @@
protected SurfaceTransactionApplier mSyncTransactionApplier;
protected int mTaskWidth;
protected int mTaskHeight;
+ protected final Rect mLastComputedTaskSize = new Rect();
+ // How much a task that is directly offscreen will be pushed out due to RecentsView scale/pivot.
+ protected Float mLastComputedTaskPushOutDistance = null;
protected boolean mEnableDrawingLiveTile = false;
protected final Rect mTempRect = new Rect();
+ protected final RectF mTempRectF = new RectF();
private final PointF mTempPointF = new PointF();
private static final int DISMISS_TASK_DURATION = 300;
@@ -864,6 +885,7 @@
public void getTaskSize(Rect outRect) {
mSizeStrategy.calculateTaskSize(mActivity, mActivity.getDeviceProfile(), outRect,
mOrientationHandler);
+ mLastComputedTaskSize.set(outRect);
}
/** Gets the task size for modal state. */
@@ -905,8 +927,8 @@
final int pageCount = getPageCount();
for (int i = 0; i < pageCount; i++) {
View page = getPageAt(i);
- mScrollState.updateInterpolation(mOrientationHandler.getChildStartWithTranslation(page),
- mPageSpacing);
+ mScrollState.updateInterpolation(
+ mOrientationHandler.getChildStartWithTranslation(page));
((PageCallbacks) page).onPageScroll(mScrollState);
}
}
@@ -1321,10 +1343,14 @@
/**
* Updates linearInterpolation for the provided child position
*/
- public void updateInterpolation(float childStart, int pageSpacing) {
- float pageCenter = childStart + halfPageSize;
+ public void updateInterpolation(float childStart) {
+ float scaledHalfPageSize = halfPageSize / pageParentScale;
+ float pageCenter = childStart + scaledHalfPageSize;
float distanceFromScreenCenter = screenCenter - pageCenter;
- float distanceToReachEdge = halfScreenSize + halfPageSize + pageSpacing;
+ // How far the page has to move from the center to be offscreen, taking into account
+ // the EDGE_SCALE_DOWN_FACTOR that will be applied at that position.
+ float distanceToReachEdge = halfScreenSize
+ + scaledHalfPageSize * (1 - TaskView.EDGE_SCALE_DOWN_FACTOR);
linearInterpolation = Math.min(1,
Math.abs(distanceFromScreenCenter) / distanceToReachEdge);
}
@@ -1761,14 +1787,15 @@
setPivotX(mTempPointF.x);
setPivotY(mTempPointF.y);
setTaskModalness(mTaskModalness);
+ mLastComputedTaskPushOutDistance = null;
updatePageOffsets();
setImportantForAccessibility(isModal() ? IMPORTANT_FOR_ACCESSIBILITY_NO
: IMPORTANT_FOR_ACCESSIBILITY_AUTO);
}
private void updatePageOffsets() {
- float offset = mAdjacentPageOffset * getWidth();
- float modalOffset = ACCEL_0_75.getInterpolation(mTaskModalness) * getWidth();
+ float offset = mAdjacentPageOffset;
+ float modalOffset = ACCEL_0_75.getInterpolation(mTaskModalness);
if (mIsRtl) {
offset = -offset;
modalOffset = -modalOffset;
@@ -1777,19 +1804,90 @@
TaskView runningTask = mRunningTaskId == -1 || !mRunningTaskTileHidden
? null : getTaskView(mRunningTaskId);
- int midPoint = runningTask == null ? -1 : indexOfChild(runningTask);
- int currentPage = getCurrentPage();
+ int midpoint = runningTask == null ? -1 : indexOfChild(runningTask);
+ int modalMidpoint = getCurrentPage();
+
+ float midpointOffsetSize = 0;
+ float leftOffsetSize = midpoint - 1 >= 0
+ ? -getOffsetSize(midpoint - 1, midpoint, offset)
+ : 0;
+ float rightOffsetSize = midpoint + 1 < count
+ ? getOffsetSize(midpoint + 1, midpoint, offset)
+ : 0;
+
+ float modalMidpointOffsetSize = 0;
+ float modalLeftOffsetSize = modalMidpoint - 1 >= 0
+ ? -getOffsetSize(modalMidpoint - 1, modalMidpoint, modalOffset)
+ : 0;
+ float modalRightOffsetSize = modalMidpoint + 1 < count
+ ? getOffsetSize(modalMidpoint + 1, modalMidpoint, modalOffset)
+ : 0;
for (int i = 0; i < count; i++) {
- float translation = i == midPoint ? 0 : (i < midPoint ? -offset : offset);
- float modalTranslation =
- i == currentPage ? 0 : (i < currentPage ? -modalOffset : modalOffset);
+ float translation = i == midpoint
+ ? midpointOffsetSize
+ : i < midpoint
+ ? leftOffsetSize
+ : rightOffsetSize;
+ float modalTranslation = i == modalMidpoint
+ ? modalMidpointOffsetSize
+ : i < modalMidpoint
+ ? modalLeftOffsetSize
+ : modalRightOffsetSize;
getChildAt(i).setTranslationX(translation + modalTranslation);
}
updateCurveProperties();
}
/**
+ * Computes the distance to offset the given child such that it is completely offscreen when
+ * translating away from the given midpoint.
+ * @param offsetProgress From 0 to 1 where 0 means no offset and 1 means offset offscreen.
+ */
+ private float getOffsetSize(int childIndex, int midpointIndex, float offsetProgress) {
+ if (offsetProgress == 0) {
+ // Don't bother calculating everything below if we won't offset anyway.
+ return 0;
+ }
+ // First, get the position of the task relative to the midpoint. If there is no midpoint
+ // then we just use the normal (centered) task position.
+ mTempRectF.set(mLastComputedTaskSize);
+ RectF taskPosition = mTempRectF;
+ float desiredLeft = getWidth();
+ float distanceToOffscreen = desiredLeft - taskPosition.left;
+ // Used to calculate the scale of the task view based on its new offset.
+ float centerToOffscreenProgress = Math.abs(offsetProgress);
+ if (midpointIndex > -1) {
+ // When there is a midpoint reference task, adjacent tasks have less distance to travel
+ // to reach offscreen. Offset the task position to the task's starting point.
+ View child = getChildAt(childIndex);
+ View midpointChild = getChildAt(midpointIndex);
+ int distanceFromMidpoint = Math.abs(mOrientationHandler.getChildStart(child)
+ - mOrientationHandler.getChildStart(midpointChild)
+ + getDisplacementFromScreenCenter(midpointIndex));
+ taskPosition.offset(distanceFromMidpoint, 0);
+ centerToOffscreenProgress = Utilities.mapRange(centerToOffscreenProgress,
+ distanceFromMidpoint / distanceToOffscreen, 1);
+ }
+ // Find the task's scale based on its offscreen progress, then see how far it still needs to
+ // move to be completely offscreen.
+ Utilities.scaleRectFAboutCenter(taskPosition,
+ TaskView.getCurveScaleForInterpolation(centerToOffscreenProgress));
+ distanceToOffscreen = desiredLeft - taskPosition.left;
+ // Finally, we need to account for RecentsView scale, because it moves tasks based on its
+ // pivot. To do this, we move the task position to where it would be offscreen at scale = 1
+ // (computed above), then we apply the scale via getMatrix() to determine how much that
+ // moves the task from its desired position, and adjust the computed distance accordingly.
+ if (mLastComputedTaskPushOutDistance == null) {
+ taskPosition.offsetTo(desiredLeft, 0);
+ getMatrix().mapRect(taskPosition);
+ mLastComputedTaskPushOutDistance = (taskPosition.left - desiredLeft) / getScaleX();
+ }
+ distanceToOffscreen -= mLastComputedTaskPushOutDistance;
+ return distanceToOffscreen * offsetProgress;
+ }
+
+ /**
* TODO: Do not assume motion across X axis for adjacent page
*/
public float getPageOffsetScale() {
@@ -1887,7 +1985,7 @@
float toScale = getMaxScaleForFullScreen();
if (launchingCenterTask) {
RecentsView recentsView = tv.getRecentsView();
- anim.play(ObjectAnimator.ofFloat(recentsView, SCALE_PROPERTY, toScale));
+ anim.play(ObjectAnimator.ofFloat(recentsView, RECENTS_SCALE_PROPERTY, toScale));
anim.play(ObjectAnimator.ofFloat(recentsView, FULLSCREEN_PROGRESS, 1));
} else {
// We are launching an adjacent task, so parallax the center and other adjacent task.
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
index ec3a490..6e120e8 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
@@ -16,7 +16,6 @@
package com.android.launcher3.uioverrides;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.anim.Interpolators.AGGRESSIVE_EASE_IN_OUT;
import static com.android.launcher3.anim.Interpolators.LINEAR;
import static com.android.launcher3.graphics.Scrim.SCRIM_PROGRESS;
@@ -29,6 +28,7 @@
import static com.android.launcher3.states.StateAnimationConfig.PLAY_ATOMIC_OVERVIEW_SCALE;
import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import android.util.FloatProperty;
@@ -61,7 +61,7 @@
@Override
public void setState(@NonNull LauncherState state) {
float[] scaleAndOffset = state.getOverviewScaleAndOffset(mLauncher);
- SCALE_PROPERTY.set(mRecentsView, scaleAndOffset[0]);
+ RECENTS_SCALE_PROPERTY.set(mRecentsView, scaleAndOffset[0]);
ADJACENT_PAGE_OFFSET.set(mRecentsView, scaleAndOffset[1]);
getContentAlphaProperty().set(mRecentsView, state.overviewUi ? 1f : 0);
@@ -93,7 +93,7 @@
void setStateWithAnimationInternal(@NonNull final LauncherState toState,
@NonNull StateAnimationConfig config, @NonNull PendingAnimation setter) {
float[] scaleAndOffset = toState.getOverviewScaleAndOffset(mLauncher);
- setter.setFloat(mRecentsView, SCALE_PROPERTY, scaleAndOffset[0],
+ setter.setFloat(mRecentsView, RECENTS_SCALE_PROPERTY, scaleAndOffset[0],
config.getInterpolator(ANIM_OVERVIEW_SCALE, LINEAR));
setter.setFloat(mRecentsView, ADJACENT_PAGE_OFFSET, scaleAndOffset[1],
config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_X, LINEAR));
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index 5600589..df8f31d 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -15,7 +15,6 @@
*/
package com.android.quickstep;
-import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
import static com.android.launcher3.anim.Interpolators.ACCEL_2;
import static com.android.launcher3.anim.Interpolators.INSTANT;
import static com.android.launcher3.anim.Interpolators.LINEAR;
@@ -28,6 +27,7 @@
import static com.android.quickstep.util.RecentsAtomicAnimationFactory.INDEX_RECENTS_TRANSLATE_X_ANIM;
import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
+import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
import android.animation.Animator;
import android.annotation.TargetApi;
@@ -400,7 +400,7 @@
protected void createBackgroundToOverviewAnim(ACTIVITY_TYPE activity, PendingAnimation pa) {
// Scale down recents from being full screen to being in overview.
RecentsView recentsView = activity.getOverviewPanel();
- pa.addFloat(recentsView, SCALE_PROPERTY,
+ pa.addFloat(recentsView, RECENTS_SCALE_PROPERTY,
recentsView.getMaxScaleForFullScreen(), 1, LINEAR);
pa.addFloat(recentsView, FULLSCREEN_PROGRESS, 1, 0, LINEAR);
}
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index e29faac..e13d89f 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -1448,11 +1448,8 @@
int minDistanceFromScreenCenterIndex = -1;
final int childCount = getChildCount();
for (int i = 0; i < childCount; ++i) {
- View layout = getPageAt(i);
- int childSize = mOrientationHandler.getMeasuredSize(layout);
- int halfChildSize = (childSize / 2);
- int childCenter = getChildOffset(i) + halfChildSize;
- int distanceFromScreenCenter = Math.abs(childCenter - screenCenter);
+ int distanceFromScreenCenter = Math.abs(
+ getDisplacementFromScreenCenter(i, screenCenter));
if (distanceFromScreenCenter < minDistanceFromScreenCenter) {
minDistanceFromScreenCenter = distanceFromScreenCenter;
minDistanceFromScreenCenterIndex = i;
@@ -1461,6 +1458,20 @@
return minDistanceFromScreenCenterIndex;
}
+ private int getDisplacementFromScreenCenter(int childIndex, int screenCenter) {
+ View layout = getPageAt(childIndex);
+ int childSize = mOrientationHandler.getMeasuredSize(layout);
+ int halfChildSize = (childSize / 2);
+ int childCenter = getChildOffset(childIndex) + halfChildSize;
+ return childCenter - screenCenter;
+ }
+
+ protected int getDisplacementFromScreenCenter(int childIndex) {
+ int pageOrientationSize = mOrientationHandler.getMeasuredSize(this);
+ int screenCenter = mOrientationHandler.getPrimaryScroll(this) + (pageOrientationSize / 2);
+ return getDisplacementFromScreenCenter(childIndex, screenCenter);
+ }
+
protected void snapToDestination() {
snapToPage(getPageNearestToCenterOfScreen(), getPageSnapDuration());
}
diff --git a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
index c2bfb16..ab495ea 100644
--- a/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
+++ b/src/com/android/launcher3/touch/LandscapePagedViewHandler.java
@@ -72,6 +72,7 @@
out.halfPageSize = view.getNormalChildHeight() / 2;
out.halfScreenSize = view.getMeasuredHeight() / 2;
out.screenCenter = insets.top + view.getPaddingTop() + out.scroll + out.halfPageSize;
+ out.pageParentScale = view.getScaleY();
}
@Override
diff --git a/src/com/android/launcher3/touch/PagedOrientationHandler.java b/src/com/android/launcher3/touch/PagedOrientationHandler.java
index b650526..8abb047 100644
--- a/src/com/android/launcher3/touch/PagedOrientationHandler.java
+++ b/src/com/android/launcher3/touch/PagedOrientationHandler.java
@@ -109,6 +109,7 @@
public int halfPageSize;
public int screenCenter;
public int halfScreenSize;
+ public float pageParentScale;
}
class ChildBounds {
diff --git a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
index e87c887..3acb3ae 100644
--- a/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
+++ b/src/com/android/launcher3/touch/PortraitPagedViewHandler.java
@@ -70,6 +70,7 @@
out.halfPageSize = view.getNormalChildWidth() / 2;
out.halfScreenSize = view.getMeasuredWidth() / 2;
out.screenCenter = insets.left + view.getPaddingLeft() + out.scroll + out.halfPageSize;
+ out.pageParentScale = view.getScaleX();
}
@Override
