Removed usage of hidden APIs

Bug: 137202333
Test: manual
Change-Id: I2faccccff47a000954b8676a1b27e33d6b78061b
diff --git a/src/com/android/phone/EmergencyActionGroup.java b/src/com/android/phone/EmergencyActionGroup.java
index b8bf7a8..c090af7 100644
--- a/src/com/android/phone/EmergencyActionGroup.java
+++ b/src/com/android/phone/EmergencyActionGroup.java
@@ -161,7 +161,10 @@
             case R.id.action1:
             case R.id.action2:
             case R.id.action3:
-                if (AccessibilityManager.getInstance(mContext).isTouchExplorationEnabled()) {
+                AccessibilityManager accessibilityMgr =
+                        (AccessibilityManager) mContext.getSystemService(
+                                Context.ACCESSIBILITY_SERVICE);
+                if (accessibilityMgr.isTouchExplorationEnabled()) {
                     getContext().startActivity(intent);
                 } else {
                     revealTheButton(v);