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Merge "Tune swipe up resistance" into sc-v2-dev

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This commit is contained in:
TreeHugger Robot
2021-08-10 17:09:56 +00:00
committed by Android (Google) Code Review
parent 874d9aff0e 26a5f7f8cb
commit 49ee541bc5
1 changed files with 37 additions and 24 deletions
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quickstep/src/com/android/quickstep/util/AnimatorControllerWithResistance.java
+37 -24
View File
@@ -48,15 +48,16 @@ import com.android.quickstep.views.RecentsView;
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 @@ public class AnimatorControllerWithResistance {
* 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 @@ public class AnimatorControllerWithResistance {
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 @@ public class AnimatorControllerWithResistance {
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;
}