Consider screen insets when setting smallestWidthDp

Take system bars and display cutout insets into account when calculating
smallestWidthDp for splitting tasks.

Bug: 217600744
Test: atest WMShellUnitTests
Change-Id: Ifa56c51d90418d9771d95bd64be69b2c084e446f

1 files changed, 3 insertions, 1 deletions

diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java b/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
index b52c8d118711..ab00ed00000f 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java
@@ -515,7 +515,9 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
     }
 
     private int getSmallestWidthDp(Rect bounds) {
-        final int minWidth = Math.min(bounds.width(), bounds.height());
+        mTempRect.set(bounds);
+        mTempRect.inset(getDisplayInsets(mContext));
+        final int minWidth = Math.min(mTempRect.width(), mTempRect.height());
         final float density = mContext.getResources().getDisplayMetrics().density;
         return (int) (minWidth / density);
     }