A11y nodes with only value or hint are focusable (#4481)

shell/platform/android/io/flutter/view/AccessibilityBridge.java

@@ -663,7 +663,11 @@ class AccessibilityBridge extends AccessibilityNodeProvider implements BasicMess
         boolean isFocusable() {
             int scrollableActions = Action.SCROLL_RIGHT.value | Action.SCROLL_LEFT.value
                     | Action.SCROLL_UP.value | Action.SCROLL_DOWN.value;
-            return flags != 0 || (label != null && !label.isEmpty()) || (actions & ~scrollableActions) != 0;
+            return (actions & ~scrollableActions) != 0
+                || flags != 0
+                || (label != null && !label.isEmpty())
+                || (value != null && !value.isEmpty())
+                || (hint != null && !hint.isEmpty());
         }
 
         void updateRecursively(float[] ancestorTransform, Set<SemanticsObject> visitedObjects, boolean forceUpdate) {

shell/platform/darwin/ios/framework/Source/accessibility_bridge.mm

@@ -159,7 +159,7 @@ bool GeometryComparator(SemanticsObject* a, SemanticsObject* b) {
   // Note: hit detection will only apply to elements that report
   // -isAccessibilityElement of YES. The framework will continue scanning the
   // entire element tree looking for such a hit.
-  return _node.flags != 0 || !_node.label.empty() ||
+  return _node.flags != 0 || !_node.label.empty() || !_node.value.empty() || !_node.hint.empty() ||
          (_node.actions & ~blink::kScrollableSemanticsActions) != 0;
 }