Fix issue where allAppsCellWidth is 0

when using secondary display on non-scalable grids causing allApps to be squished.
Bug: 234748862
Test: Manual

Change-Id: I2e92bce69438a17eccb0e4b2b2e3f2bdbfa7600e
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 13f20c2..165ec5e 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -252,9 +252,10 @@
         if not specified -->
         <attr name="borderSpaceTwoPanelLandscapeVertical" format="float" />
 
-        <!-- These min cell values are only used if GridDisplayOption#isScalable is true -->
-        <!-- defaults to minCellHeight, if not specified -->
+        <!-- defaults to minCellHeight if not specified when GridDisplayOption#isScalable is true.
+         Must be defined when GridDisplayOption#isScalable is false. -->
         <attr name="allAppsCellHeight" format="float" />
+        <!-- These min cell values are only used if GridDisplayOption#isScalable is true -->
         <!-- defaults to minCellWidth, if not specified -->
         <attr name="allAppsCellWidth" format="float" />
         <!-- defaults to allAppsCellHeight, if not specified -->
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index a428b7e..87885f6 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -799,13 +799,13 @@
                 + allAppsBorderSpacePx.y;
         // but width is just the cell,
         // the border is added in #updateAllAppsContainerWidth
-        allAppsCellWidthPx = pxFromDp(inv.allAppsCellSize[mTypeIndex].x, mMetrics, scale);
         if (isScalableGrid) {
             allAppsIconSizePx =
                     pxFromDp(inv.allAppsIconSize[mTypeIndex], mMetrics, scale);
             allAppsIconTextSizePx =
                     pxFromSp(inv.allAppsIconTextSize[mTypeIndex], mMetrics, scale);
             allAppsIconDrawablePaddingPx = iconDrawablePaddingOriginalPx;
+            allAppsCellWidthPx = pxFromDp(inv.allAppsCellSize[mTypeIndex].x, mMetrics, scale);
         } else {
             float invIconSizeDp = inv.allAppsIconSize[mTypeIndex];
             float invIconTextSizeSp = inv.allAppsIconTextSize[mTypeIndex];
@@ -813,6 +813,7 @@
             allAppsIconTextSizePx = (int) (pxFromSp(invIconTextSizeSp, mMetrics) * scale);
             allAppsIconDrawablePaddingPx =
                     res.getDimensionPixelSize(R.dimen.all_apps_icon_drawable_padding);
+            allAppsCellWidthPx = allAppsIconSizePx + (2 * allAppsIconDrawablePaddingPx);
         }
 
         updateAllAppsContainerWidth(res);