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Tune window/icon alpha for swipe up to home animation.

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Bug: 136591785
Change-Id: Ib781bc77cfd49b6f4529a609d7025f510e219575
This commit is contained in:
Jon Miranda
2019-07-31 10:05:16 -07:00
parent 3e90b4c7ae
commit f462b251e1
1 changed files with 18 additions and 5 deletions
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quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
+18 -5
View File
@@ -411,15 +411,27 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
// FolderIconView can be seen morphing into the icon shape.
final float windowAlphaThreshold = isFloatingIconView ? 1f - SHAPE_PROGRESS_DURATION : 1f;
anim.addOnUpdateListener(new RectFSpringAnim.OnUpdateListener() {
// Alpha interpolates between [1, 0] between progress values [start, end]
final float start = 0f;
final float end = 0.85f;
private float getWindowAlpha(float progress) {
if (progress <= start) {
return 1f;
}
if (progress >= end) {
return 0f;
}
return Utilities.mapToRange(progress, start, end, 1, 0, ACCEL_1_5);
}
@Override
public void onUpdate(RectF currentRect, float progress) {
homeAnim.setPlayFraction(progress);
float alphaProgress = ACCEL_1_5.getInterpolation(progress);
float windowAlpha = Utilities.boundToRange(Utilities.mapToRange(alphaProgress, 0,
windowAlphaThreshold, 1.5f, 0f, Interpolators.LINEAR), 0, 1);
mTransformParams.setProgress(progress)
.setCurrentRectAndTargetAlpha(currentRect, windowAlpha);
.setCurrentRectAndTargetAlpha(currentRect, getWindowAlpha(progress));
if (isFloatingIconView) {
mTransformParams.setCornerRadius(endRadius * progress + startRadius
* (1f - progress));
@@ -429,7 +441,8 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
if (isFloatingIconView) {
((FloatingIconView) floatingView).update(currentRect, 1f, progress,
windowAlphaThreshold, mClipAnimationHelper.getCurrentCornerRadius(), false);
windowAlphaThreshold, mClipAnimationHelper.getCurrentCornerRadius(),
false);
}
}