Merge "Fix home screen page description when removing an existing page." into main

src/com/android/launcher3/Workspace.java

@@ -891,6 +891,9 @@ public class Workspace<T extends View & PageIndicator> extends PagedView<T>
                 mScreenOrder.removeValue(extraEmptyPageId);
             });
 
+            // Since we removed some screens, before moving to next page, update the state
+            // description with correct page numbers.
+            updateAccessibilityViewPageDescription();
             setCurrentPage(getNextPage());
 
             // Update the page indicator to reflect the removed page.
@@ -1116,6 +1119,9 @@ public class Workspace<T extends View & PageIndicator> extends PagedView<T>
         if (pageShift >= 0) {
             setCurrentPage(currentPage - pageShift);
         }
+
+        // Now that we have removed some pages, ensure state description is up to date.
+        updateAccessibilityViewPageDescription();
     }
 
     /**
@@ -3479,6 +3485,18 @@ public class Workspace<T extends View & PageIndicator> extends PagedView<T>
     protected void announcePageForAccessibility() {
         // Talkback focuses on AccessibilityActionView by default, so we need to modify the state
         // description there in order for the change in page scroll to be announced.
+        updateAccessibilityViewPageDescription();
+    }
+
+    /**
+     * Updates the state description that is set on the accessibility actions view for the
+     * workspace.
+     * <p>The updated value is called out when talkback focuses on the view and is not disruptive.
+     * </p>
+     */
+    protected void updateAccessibilityViewPageDescription() {
+        // Set the state description on accessibility action view so that when it is focused,
+        // talkback describes the correct state of home screen pages.
         ViewCompat.setStateDescription(mLauncher.getAccessibilityActionView(),
                 getCurrentPageDescription());
     }