Don't start task from quickswitch until scrolling finishes
Before, we did this by extending the window/launcher animation to
match the scroller duration. But now that we are using springs to
control the scroller, that duration is not really accurate. So
instead, we now let the window/launcher move at its own pace, and
wait for both that animation and the scroller to finish before
calling onSettledOnEndTarget().
Bug: 147302669
Change-Id: I37a9dd3eea17ebe663c33c3a4478b1b53a63dcc2
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
index ea5561b..da73bc0 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -166,6 +166,7 @@
super.onActivityInit(alreadyOnHome);
mActivity = mActivityInterface.getCreatedActivity();
mRecentsView = mActivity.getOverviewPanel();
+ mRecentsView.setOnPageTransitionEndCallback(null);
linkRecentsViewScroll();
mRecentsView.setDisallowScrollToClearAll(true);
mRecentsView.getClearAllButton().setVisibilityAlpha(0);
@@ -434,7 +435,12 @@
@Override
public void onAnimationSuccess(Animator animator) {
- finishAnimationTargetSetAnimationComplete();
+ if (mRecentsView != null) {
+ mRecentsView.setOnPageTransitionEndCallback(FallbackSwipeHandler.this
+ ::finishAnimationTargetSetAnimationComplete);
+ } else {
+ finishAnimationTargetSetAnimationComplete();
+ }
mFinishAnimation = null;
}
};
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
index a3366e2..804bc95 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
@@ -29,6 +29,7 @@
import static com.android.quickstep.GestureState.GestureEndTarget.NEW_TASK;
import static com.android.quickstep.GestureState.GestureEndTarget.RECENTS;
import static com.android.quickstep.GestureState.STATE_END_TARGET_ANIMATION_FINISHED;
+import static com.android.quickstep.GestureState.STATE_RECENTS_SCROLLING_FINISHED;
import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
import static com.android.quickstep.SysUINavigationMode.Mode.TWO_BUTTONS;
import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.HIDE;
@@ -244,7 +245,11 @@
| STATE_GESTURE_STARTED,
this::setupLauncherUiAfterSwipeUpToRecentsAnimation);
- mGestureState.runOnceAtState(STATE_END_TARGET_ANIMATION_FINISHED, this::onEndTargetSet);
+ mGestureState.runOnceAtState(STATE_END_TARGET_ANIMATION_FINISHED,
+ this::continueComputingRecentsScrollIfNecessary);
+ mGestureState.runOnceAtState(STATE_END_TARGET_ANIMATION_FINISHED
+ | STATE_RECENTS_SCROLLING_FINISHED,
+ this::onSettledOnEndTarget);
mStateCallback.runOnceAtState(STATE_HANDLER_INVALIDATED, this::invalidateHandler);
mStateCallback.runOnceAtState(STATE_LAUNCHER_PRESENT | STATE_HANDLER_INVALIDATED,
@@ -283,6 +288,7 @@
}
mRecentsView = activity.getOverviewPanel();
+ mRecentsView.setOnPageTransitionEndCallback(null);
linkRecentsViewScroll();
addLiveTileOverlay();
@@ -699,7 +705,7 @@
}
}
- private void onEndTargetSet() {
+ private void onSettledOnEndTarget() {
switch (mGestureState.getEndTarget()) {
case HOME:
mStateCallback.setState(STATE_SCALED_CONTROLLER_HOME | STATE_CAPTURE_SCREENSHOT);
@@ -862,13 +868,17 @@
if (mDeviceState.isFullyGesturalNavMode()) {
setShelfState(ShelfAnimState.OVERVIEW, interpolator, duration);
}
- } else if (endTarget == NEW_TASK || endTarget == LAST_TASK) {
- // Let RecentsView handle the scrolling to the task, which we launch in startNewTask()
- // or resumeLastTask().
- if (mRecentsView != null) {
- duration = Math.max(duration, mRecentsView.getScroller().getDuration());
- }
}
+
+ // Let RecentsView handle the scrolling to the task, which we launch in startNewTask()
+ // or resumeLastTask().
+ if (mRecentsView != null) {
+ mRecentsView.setOnPageTransitionEndCallback(
+ () -> mGestureState.setState(STATE_RECENTS_SCROLLING_FINISHED));
+ } else {
+ mGestureState.setState(STATE_RECENTS_SCROLLING_FINISHED);
+ }
+
animateToProgress(startShift, endShift, duration, interpolator, endTarget, velocityPxPerMs);
}
@@ -952,11 +962,7 @@
ValueAnimator windowAnim = mCurrentShift.animateToValue(start, end);
windowAnim.setDuration(duration).setInterpolator(interpolator);
windowAnim.addUpdateListener(valueAnimator -> {
- if (mRecentsView != null && mRecentsView.getVisibility() != View.VISIBLE) {
- // Views typically don't compute scroll when invisible as an optimization,
- // but in our case we need to since the window offset depends on the scroll.
- mRecentsView.computeScroll();
- }
+ computeRecentsScrollIfInvisible();
});
windowAnim.addListener(new AnimationSuccessListener() {
@Override
@@ -1008,6 +1014,21 @@
mHasLauncherTransitionControllerStarted = true;
}
+ private void computeRecentsScrollIfInvisible() {
+ if (mRecentsView != null && mRecentsView.getVisibility() != View.VISIBLE) {
+ // Views typically don't compute scroll when invisible as an optimization,
+ // but in our case we need to since the window offset depends on the scroll.
+ mRecentsView.computeScroll();
+ }
+ }
+
+ private void continueComputingRecentsScrollIfNecessary() {
+ if (!mGestureState.hasState(STATE_RECENTS_SCROLLING_FINISHED)) {
+ computeRecentsScrollIfInvisible();
+ mRecentsView.post(this::continueComputingRecentsScrollIfNecessary);
+ }
+ }
+
/**
* Creates an animation that transforms the current app window into the home app.
* @param startProgress The progress of {@link #mCurrentShift} to start the window from.
diff --git a/quickstep/src/com/android/quickstep/GestureState.java b/quickstep/src/com/android/quickstep/GestureState.java
index f7e40ca..631df4c 100644
--- a/quickstep/src/com/android/quickstep/GestureState.java
+++ b/quickstep/src/com/android/quickstep/GestureState.java
@@ -105,6 +105,10 @@
public static final int STATE_RECENTS_ANIMATION_ENDED =
getFlagForIndex("STATE_RECENTS_ANIMATION_ENDED");
+ // Called when RecentsView stops scrolling and settles on a TaskView.
+ public static final int STATE_RECENTS_SCROLLING_FINISHED =
+ getFlagForIndex("STATE_RECENTS_SCROLLING_FINISHED");
+
// Needed to interact with the current activity
private final Intent mHomeIntent;
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index e38631d..7d7739e 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -50,6 +50,8 @@
import static com.android.launcher3.touch.PagedOrientationHandler.VIEW_SCROLL_BY;
import static com.android.launcher3.touch.PagedOrientationHandler.VIEW_SCROLL_TO;
+import androidx.annotation.Nullable;
+
import com.android.launcher3.anim.Interpolators;
import com.android.launcher3.compat.AccessibilityManagerCompat;
import com.android.launcher3.config.FeatureFlags;
@@ -133,6 +135,7 @@
protected int mActivePointerId = INVALID_POINTER;
protected boolean mIsPageInTransition = false;
+ private Runnable mOnPageTransitionEndCallback;
protected float mSpringOverScroll;
@@ -391,6 +394,22 @@
AccessibilityManagerCompat.sendScrollFinishedEventToTest(getContext());
AccessibilityManagerCompat.sendCustomAccessibilityEvent(getPageAt(mCurrentPage),
AccessibilityEvent.TYPE_VIEW_FOCUSED, null);
+ if (mOnPageTransitionEndCallback != null) {
+ mOnPageTransitionEndCallback.run();
+ mOnPageTransitionEndCallback = null;
+ }
+ }
+
+ /**
+ * Sets a callback to run once when the scrolling finishes. If there is currently
+ * no page in transition, then the callback is called immediately.
+ */
+ public void setOnPageTransitionEndCallback(@Nullable Runnable callback) {
+ if (mIsPageInTransition || callback == null) {
+ mOnPageTransitionEndCallback = callback;
+ } else {
+ callback.run();
+ }
}
protected int getUnboundedScroll() {
diff --git a/src/com/android/launcher3/util/OverScroller.java b/src/com/android/launcher3/util/OverScroller.java
index 3c398b8..34efb12 100644
--- a/src/com/android/launcher3/util/OverScroller.java
+++ b/src/com/android/launcher3/util/OverScroller.java
@@ -165,6 +165,9 @@
/**
* Returns how long the scroll event will take, in milliseconds.
*
+ * Note that if mScroller.mState == SPRING, this duration is ignored, so can only
+ * serve as an estimate for how long the spring-controlled scroll will take.
+ *
* @return The duration of the scroll in milliseconds.
*/
public final int getDuration() {