Merge "Tune swipe up resistance" into sc-v2-dev am: 49ee541bc5
Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15479547
Change-Id: Ia6e6d46b09826c1c9ecaec2667e15dcfd803b882
diff --git a/quickstep/src/com/android/quickstep/util/AnimatorControllerWithResistance.java b/quickstep/src/com/android/quickstep/util/AnimatorControllerWithResistance.java
index f1b4e3d..baca76c 100644
--- a/quickstep/src/com/android/quickstep/util/AnimatorControllerWithResistance.java
+++ b/quickstep/src/com/android/quickstep/util/AnimatorControllerWithResistance.java
@@ -48,15 +48,16 @@
public class AnimatorControllerWithResistance {
private enum RecentsResistanceParams {
- FROM_APP(0.75f, 0.5f, 1f),
- FROM_APP_TABLET(0.9f, 0.75f, 1f),
- FROM_OVERVIEW(1f, 0.75f, 0.5f);
+ FROM_APP(0.75f, 0.5f, 1f, false),
+ FROM_APP_TABLET(1f, 0.7f, 1f, true),
+ FROM_OVERVIEW(1f, 0.75f, 0.5f, false);
RecentsResistanceParams(float scaleStartResist, float scaleMaxResist,
- float translationFactor) {
+ float translationFactor, boolean stopScalingAtTop) {
this.scaleStartResist = scaleStartResist;
this.scaleMaxResist = scaleMaxResist;
this.translationFactor = translationFactor;
+ this.stopScalingAtTop = stopScalingAtTop;
}
/**
@@ -74,6 +75,12 @@
* where 0 will keep it centered and 1 will have it barely touch the top of the screen.
*/
public final float translationFactor;
+
+ /**
+ * Whether to end scaling effect when the scaled down version of TaskView's top reaches the
+ * non-scaled version of TaskView's top.
+ */
+ public final boolean stopScalingAtTop;
}
private static final TimeInterpolator RECENTS_SCALE_RESIST_INTERPOLATOR = DEACCEL;
@@ -161,26 +168,6 @@
PointF pivot = new PointF();
float fullscreenScale = params.recentsOrientedState.getFullScreenScaleAndPivot(
startRect, params.dp, pivot);
- float prevScaleRate = (fullscreenScale - params.startScale)
- / (params.dp.heightPx - startRect.bottom);
- // This is what the scale would be at the end of the drag if we didn't apply resistance.
- float endScale = params.startScale - prevScaleRate * distanceToCover;
- // Create an interpolator that resists the scale so the scale doesn't get smaller than
- // RECENTS_SCALE_MAX_RESIST.
- float startResist = Utilities.getProgress(params.resistanceParams.scaleStartResist,
- params.startScale, endScale);
- float maxResist = Utilities.getProgress(params.resistanceParams.scaleMaxResist,
- params.startScale, endScale);
- final TimeInterpolator scaleInterpolator = t -> {
- if (t < startResist) {
- return t;
- }
- float resistProgress = Utilities.getProgress(t, startResist, 1);
- resistProgress = RECENTS_SCALE_RESIST_INTERPOLATOR.getInterpolation(resistProgress);
- return startResist + resistProgress * (maxResist - startResist);
- };
- resistAnim.addFloat(params.scaleTarget, params.scaleProperty, params.startScale, endScale,
- scaleInterpolator);
// Compute where the task view would be based on the end scale.
RectF endRectF = new RectF(startRect);
@@ -195,6 +182,32 @@
resistAnim.addFloat(params.translationTarget, params.translationProperty,
params.startTranslation, endTranslation, RECENTS_TRANSLATE_RESIST_INTERPOLATOR);
+ float prevScaleRate = (fullscreenScale - params.startScale)
+ / (params.dp.heightPx - startRect.bottom);
+ // This is what the scale would be at the end of the drag if we didn't apply resistance.
+ float endScale = params.startScale - prevScaleRate * distanceToCover;
+ // Create an interpolator that resists the scale so the scale doesn't get smaller than
+ // RECENTS_SCALE_MAX_RESIST.
+ float startResist = Utilities.getProgress(params.resistanceParams.scaleStartResist,
+ params.startScale, endScale);
+ float maxResist = Utilities.getProgress(params.resistanceParams.scaleMaxResist,
+ params.startScale, endScale);
+ float stopResist =
+ params.resistanceParams.stopScalingAtTop ? 1f - startRect.top / endRectF.top : 1f;
+ final TimeInterpolator scaleInterpolator = t -> {
+ if (t < startResist) {
+ return t;
+ }
+ if (t > stopResist) {
+ return maxResist;
+ }
+ float resistProgress = Utilities.getProgress(t, startResist, stopResist);
+ resistProgress = RECENTS_SCALE_RESIST_INTERPOLATOR.getInterpolation(resistProgress);
+ return startResist + resistProgress * (maxResist - startResist);
+ };
+ resistAnim.addFloat(params.scaleTarget, params.scaleProperty, params.startScale, endScale,
+ scaleInterpolator);
+
return resistAnim;
}