Re-implement accessibilityHint on Android to use AccessibililltyNodeInfo#setToolTipText instead of contentDescription (facebook#34427)

Summary:
facebook#31056 (comment)

>Re-implement accessibilityHint on Android so that rather that concatenate into the contentDescription, it sets the toolTipText property on the AccessibilityNodeInfo (not on the view). This is the closest analog to iOS's hint that Android has, as the text is announced after the contentDescription rather than part of it. It will will not adhere to users preferences on whether they want hints disabled or not, and still has no pause before it like real hints have, but it's far closer than using the contentDescription directly.

fixes facebook#31056

## Changelog

[Android] [Fixed] - Re-implement accessibilityHint on Android to use AccessibililltyNodeInfo#setToolTipText instead of contentDescription

Pull Request resolved: facebook#34427

Test Plan: https://user-images.githubusercontent.com/24992535/184837154-5c65dbf1-1031-4d56-ac1e-066af7e08edc.mp4

Reviewed By: christophpurrer

Differential Revision: D38982158

Pulled By: cipolleschi

fbshipit-source-id: 7a616e6df9f83bd21ca02cc26b5918986a1d64f8

Author: fabOnReact

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

@@ -317,7 +317,6 @@ public void setViewState(@NonNull T view, @Nullable ReadableMap accessibilitySta
   private void updateViewContentDescription(@NonNull T view) {
     final String accessibilityLabel = (String) view.getTag(R.id.accessibility_label);
     final ReadableMap accessibilityState = (ReadableMap) view.getTag(R.id.accessibility_state);
-    final String accessibilityHint = (String) view.getTag(R.id.accessibility_hint);
     final List<String> contentDescription = new ArrayList<>();
     final ReadableMap accessibilityValue = (ReadableMap) view.getTag(R.id.accessibility_value);
     if (accessibilityLabel != null) {
@@ -352,9 +351,6 @@ private void updateViewContentDescription(@NonNull T view) {
         contentDescription.add(text.asString());
       }
     }
-    if (accessibilityHint != null) {
-      contentDescription.add(accessibilityHint);
-    }
     if (contentDescription.size() > 0) {
       view.setContentDescription(TextUtils.join(", ", contentDescription));
     }

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

@@ -225,10 +225,15 @@ public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfoCo
     super.onInitializeAccessibilityNodeInfo(host, info);
     final AccessibilityRole accessibilityRole =
         (AccessibilityRole) host.getTag(R.id.accessibility_role);
+    final String accessibilityHint = (String) host.getTag(R.id.accessibility_hint);
     if (accessibilityRole != null) {
       setRole(info, accessibilityRole, host.getContext());
     }
 
+    if (accessibilityHint != null) {
+      info.setTooltipText(accessibilityHint);
+    }
+
     final Object accessibilityLabelledBy = host.getTag(R.id.labelled_by);
     if (accessibilityLabelledBy != null) {
       mAccessibilityLabelledBy =