Merge changes I3cfdb715,Ic194afdb into main

* changes:
  Fix initial alpha when unstashing bubble bar
  Set additional bubble translation during stash

quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java

@@ -187,6 +187,9 @@ public class BubbleBarView extends FrameLayout {
     private BubbleView mDismissedByDragBubbleView;
     private float mAlphaDuringDrag = 1f;
 
+    /** Additional translation in the y direction that is applied to each bubble */
+    private float mBubbleOffsetY;
+
     private Controller mController;
 
     private int mPreviousLayoutDirection = LayoutDirection.UNDEFINED;
@@ -334,6 +337,16 @@ public class BubbleBarView extends FrameLayout {
         mBubbleBarBackground.setAlpha((int) (255 * alpha));
     }
 
+    /**
+     * Sets offset of each bubble view in the y direction from the base position in the bar.
+     */
+    public void setBubbleOffsetY(float offsetY) {
+        mBubbleOffsetY = offsetY;
+        for (int i = 0; i < getChildCount(); i++) {
+            getChildAt(i).setTranslationY(getBubbleTranslationY());
+        }
+    }
+
     /**
      * Sets new icon sizes and newBubbleBarPadding between icons and bubble bar borders.
      *
@@ -997,10 +1010,7 @@ public class BubbleBarView extends FrameLayout {
         final float expandedWidth = expandedWidth();
         final float collapsedWidth = collapsedWidth();
         int childCount = getChildCount();
-        float viewBottom = mBubbleBarBounds.height() + (isExpanded() ? mPointerSize : 0);
-        float bubbleBarAnimatedTop = viewBottom - getBubbleBarHeight();
-        // When translating X & Y the scale is ignored, so need to deduct it from the translations
-        final float ty = bubbleBarAnimatedTop + mBubbleBarPadding - getScaleIconShift();
+        final float ty = getBubbleTranslationY();
         final boolean onLeft = bubbleBarLocation.isOnLeft(isLayoutRtl());
         // elevation state is opposite to widthState - when expanded all icons are flat
         float elevationState = (1 - widthState);
@@ -1134,6 +1144,13 @@ public class BubbleBarView extends FrameLayout {
         return mBubbleBarPadding + translationX - getScaleIconShift();
     }
 
+    private float getBubbleTranslationY() {
+        float viewBottom = mBubbleBarBounds.height() + (isExpanded() ? mPointerSize : 0);
+        float bubbleBarAnimatedTop = viewBottom - getBubbleBarHeight();
+        // When translating X & Y the scale is ignored, so need to deduct it from the translations
+        return mBubbleOffsetY + bubbleBarAnimatedTop + mBubbleBarPadding - getScaleIconShift();
+    }
+
     /**
      * Reorders the views to match the provided list.
      */