Notification history a11y fixes

- When clicking the expand/collapse button to see the posted
notifications from an app in the last 24 hours, refocus accessibility on
the button so the entire button (contentDescription + clickability) are
announced. Previously only the contentDescription update was being
announced.

- Fix local context menu of NotificationHistory elements by calling the
super method in performAccessibilityAction

Test: manual
Fixes: 153396313
Fixes: 153518629
Change-Id: I3d847ec1f2b72dcf411c6c7c7fe2dc061ccfde26

src/com/android/settings/notification/history/NotificationHistoryActivity.java

@@ -18,6 +18,8 @@ package com.android.settings.notification.history;
 
 import static android.provider.Settings.Secure.NOTIFICATION_HISTORY_ENABLED;
 
+import static androidx.core.view.accessibility.AccessibilityEventCompat.TYPE_VIEW_ACCESSIBILITY_FOCUSED;
+
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.INotificationManager;
@@ -96,7 +98,7 @@ public class NotificationHistoryActivity extends Activity {
                 expand.setContentDescription(container.getVisibility() == View.VISIBLE
                         ? getString(R.string.condition_expand_hide)
                         : getString(R.string.condition_expand_show));
-                    expand.setAccessibilityLiveRegion(View.ACCESSIBILITY_LIVE_REGION_POLITE);
+                expand.sendAccessibilityEvent(TYPE_VIEW_ACCESSIBILITY_FOCUSED);
             });
 
             TextView label = viewForPackage.findViewById(R.id.label);
@@ -108,7 +110,7 @@ public class NotificationHistoryActivity extends Activity {
             count.setText(getResources().getQuantityString(R.plurals.notification_history_count,
                     nhp.notifications.size(), nhp.notifications.size()));
 
-            NotificationHistoryRecyclerView rv =
+            final NotificationHistoryRecyclerView rv =
                     viewForPackage.findViewById(R.id.notification_list);
             rv.setAdapter(new NotificationHistoryAdapter(mNm, rv));
             ((NotificationHistoryAdapter) rv.getAdapter()).onRebuildComplete(

src/com/android/settings/notification/history/NotificationHistoryAdapter.java

@@ -91,11 +91,12 @@ public class NotificationHistoryAdapter extends
                         new AccessibilityNodeInfo.AccessibilityAction(
                                 AccessibilityNodeInfo.ACTION_CLICK, description);
                 info.addAction(customClick);
-                //info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_DISMISS);
+                info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_DISMISS);
             }
 
             @Override
             public boolean performAccessibilityAction(View host, int action, Bundle args) {
+                super.performAccessibilityAction(host, action, args);
                 if (action == AccessibilityNodeInfo.AccessibilityAction.ACTION_DISMISS.getId()) {
                     onItemSwipeDeleted(position);
                     return true;