Added Support for Entrance/exit from collection by Flatlist

Libraries/Components/View/ViewAccessibility.js

@@ -41,6 +41,7 @@ export type AccessibilityRole =
   | 'tab'
   | 'tablist'
   | 'timer'
+  | 'list'
   | 'toolbar';
 
 // the info associated with an accessibility action

React/Views/RCTViewManager.m

@@ -61,6 +61,7 @@ @implementation RCTConvert (UIAccessibilityTraits)
       @"tablist" : @(UIAccessibilityTraitNone),
       @"timer" : @(UIAccessibilityTraitNone),
       @"toolbar" : @(UIAccessibilityTraitNone),
+      @"list" : @(UIAccessibilityTraitNone),
     }),
     UIAccessibilityTraitNone,
     unsignedLongLongValue)

ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.java

@@ -107,6 +107,7 @@ public enum AccessibilityRole {
     TAB,
     TABLIST,
     TIMER,
+    LIST,
     TOOLBAR;
 
     public static String getValue(AccessibilityRole role) {
@@ -135,6 +136,8 @@ public static String getValue(AccessibilityRole role) {
           return "android.widget.SpinButton";
         case SWITCH:
           return "android.widget.Switch";
+        case LIST:
+          return "android.widget.AbsListView";
         case NONE:
         case LINK:
         case SUMMARY:

packages/rn-tester/js/examples/FlatList/FlatListExample.js

@@ -196,6 +196,7 @@ class FlatListExample extends React.PureComponent<Props, State> {
             getItemLayout={
               this.state.fixedHeight ? this._getItemLayout : undefined
             }
+            accessibilityRole="list"
             horizontal={this.state.horizontal}
             inverted={this.state.inverted}
             key={

packages/rn-tester/js/examples/SectionList/SectionListExample.js

@@ -273,6 +273,7 @@ function SectionListExample(Props: {...}): React.Element<typeof RNTesterPage> {
         ItemSeparatorComponent={info => (
           <CustomSeparatorComponent {...info} text="ITEM SEPARATOR" />
         )}
+        accessibilityRole="list"
         debug={debug}
         inverted={inverted}
         disableVirtualization={!virtualized}

packages/rn-tester/js/examples/SectionList/SectionListExamples.js

@@ -290,6 +290,7 @@ const SectionListExampleWithForwardedRef = React.forwardRef(
         <SectionList
           ref={ref}
           testID="section_list"
+          accessibilityRole="list"
           sections={DATA}
           keyExtractor={(item, index) => item + index}
           style={styles.list}