Merge "Fix a11y shortcut failed to be disabled by the warning dialog."
diff --git a/core/java/com/android/internal/accessibility/AccessibilityShortcutController.java b/core/java/com/android/internal/accessibility/AccessibilityShortcutController.java
index 3fdedc8..93659a4 100644
--- a/core/java/com/android/internal/accessibility/AccessibilityShortcutController.java
+++ b/core/java/com/android/internal/accessibility/AccessibilityShortcutController.java
@@ -371,7 +371,9 @@
         // targets during boot. Needs to read settings directly here.
         String shortcutTargets = Settings.Secure.getStringForUser(mContext.getContentResolver(),
                 Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_SERVICE, mUserId);
-        if (TextUtils.isEmpty(shortcutTargets)) {
+        // A11y warning dialog updates settings to empty string, when user disables a11y shortcut.
+        // Only fallback to default a11y service, when setting is never updated.
+        if (shortcutTargets == null) {
             shortcutTargets = mContext.getString(R.string.config_defaultAccessibilityService);
         }
         return !TextUtils.isEmpty(shortcutTargets);
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index f975922..f3a415e 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -1884,11 +1884,12 @@
     }
 
     private boolean readAccessibilityShortcutKeySettingLocked(AccessibilityUserState userState) {
+        final String settingValue = Settings.Secure.getStringForUser(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_SERVICE, userState.mUserId);
         final Set<String> targetsFromSetting = new ArraySet<>();
-        readColonDelimitedSettingToSet(Settings.Secure.ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
-                userState.mUserId, targetsFromSetting, str -> str);
-        if (targetsFromSetting.isEmpty()) {
-            // Fall back to device's default a11y service.
+        readColonDelimitedStringToSet(settingValue, targetsFromSetting, false, str -> str);
+        // Fall back to device's default a11y service, only when setting is never updated.
+        if (settingValue == null) {
             final String defaultService = mContext.getString(
                     R.string.config_defaultAccessibilityService);
             if (!TextUtils.isEmpty(defaultService)) {