From 1898d16ee0e0172a177fd8c6c06f4352f7b901c4 Mon Sep 17 00:00:00 2001
From: Fengjiang Li <fengjial@google.com>
Date: Thu, 9 Mar 2023 11:26:55 -0800
Subject: [PATCH] [Predictive Back] Fix small bottom gap in widget to home
 animation

The bug was caused by a math problem. The extrat bottom offset should be

 offset = (H / 0.9 - H) / 2

Fix: b/269393854
Test: manual
Change-Id: Ia4d6b3f2ecb53b82d6779cd385ce4d7ca3c16113
---
 src/com/android/launcher3/views/AbstractSlideInView.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/com/android/launcher3/views/AbstractSlideInView.java b/src/com/android/launcher3/views/AbstractSlideInView.java
index e2f1c04ced..ebae00d223 100644
--- a/src/com/android/launcher3/views/AbstractSlideInView.java
+++ b/src/com/android/launcher3/views/AbstractSlideInView.java
@@ -236,8 +236,8 @@ public abstract class AbstractSlideInView<T extends Context & ActivityContext>
     /** Return extra space revealed during predictive back animation. */
     @Px
     protected int getBottomOffsetPx() {
-        return (int) (getMeasuredHeight()
-                * (1 - PREDICTIVE_BACK_MIN_SCALE) / 2);
+        final int height = getMeasuredHeight();
+        return (int) ((height / PREDICTIVE_BACK_MIN_SCALE - height) / 2);
     }
 
     /**