Refactor FingerprintEnrollEnrolling to fragment

Bug: b/260957933
Test: NA
Change-Id: I5b65f5957569418e85c39f05bc2fece856ef4a2b

src/com/android/settings/biometrics2/ui/viewmodel/FingerprintEnrollEnrollingViewModel.java

@@ -23,7 +23,6 @@ import android.os.Bundle;
 import android.os.VibrationAttributes;
 import android.os.VibrationEffect;
 import android.util.Log;
-import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
 
@@ -282,19 +281,23 @@ public class FingerprintEnrollEnrollingViewModel extends AndroidViewModel {
 
     /**
      * Sends an {@link AccessibilityEvent}.
-     *
-     * @param event The event to send.
-     *
-     * @throws IllegalStateException if accessibility is not enabled.
-     *
-     * <strong>Note:</strong> The preferred mechanism for sending custom accessibility
-     * events is through calling
-     * {@link android.view.ViewParent#requestSendAccessibilityEvent(View, AccessibilityEvent)}
-     * instead of this method to allow predecessors to augment/filter events sent by
-     * their descendants.
      */
-    public void sendAccessibilityEvent(@NonNull AccessibilityEvent event) {
-        mAccessibilityRepository.sendAccessibilityEvent(event);
+    public void sendAccessibilityEvent(CharSequence announcement) {
+        AccessibilityEvent e = AccessibilityEvent.obtain();
+        e.setEventType(AccessibilityEvent.TYPE_ANNOUNCEMENT);
+        e.setClassName(getClass().getName());
+        e.setPackageName(getApplication().getPackageName());
+        e.getText().add(announcement);
+        mAccessibilityRepository.sendAccessibilityEvent(e);
+    }
+
+     /**
+     * Returns if the touch exploration in the system is enabled.
+     *
+     * @return True if touch exploration is enabled, false otherwise.
+     */
+    public boolean isTouchExplorationEnabled() {
+        return mAccessibilityRepository.isTouchExplorationEnabled();
     }
 
     /**