2 files changed, 50 insertions, 7 deletions
diff --git a/core/java/android/hardware/biometrics/BiometricOverlayConstants.java b/core/java/android/hardware/biometrics/BiometricOverlayConstants.java
new file mode 100644
index 000000000000..603b06ddabaa
--- /dev/null
+++ b/core/java/android/hardware/biometrics/BiometricOverlayConstants.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.biometrics;
+
+import android.annotation.IntDef;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Common constants for biometric overlays.
+ * @hide
+ */
+public interface BiometricOverlayConstants {
+    /** Unknown usage. */
+    int REASON_UNKNOWN = 0;
+    /** User is about to enroll. */
+    int REASON_ENROLL_FIND_SENSOR = 1;
+    /** User is enrolling. */
+    int REASON_ENROLL_ENROLLING = 2;
+    /** Usage from BiometricPrompt. */
+    int REASON_AUTH_BP = 3;
+    /** Usage from Keyguard. */
+    int REASON_AUTH_KEYGUARD = 4;
+    /** Non-specific usage (from FingerprintManager). */
+    int REASON_AUTH_OTHER = 5;
+
+    @IntDef({REASON_UNKNOWN,
+            REASON_ENROLL_FIND_SENSOR,
+            REASON_ENROLL_ENROLLING,
+            REASON_AUTH_BP,
+            REASON_AUTH_KEYGUARD,
+            REASON_AUTH_OTHER})
+    @Retention(RetentionPolicy.SOURCE)
+    @interface ShowReason {}
+}
diff --git a/core/java/android/hardware/fingerprint/IUdfpsOverlayController.aidl b/core/java/android/hardware/fingerprint/IUdfpsOverlayController.aidl
index f18360ff4108..938431df4f20 100644
--- a/core/java/android/hardware/fingerprint/IUdfpsOverlayController.aidl
+++ b/core/java/android/hardware/fingerprint/IUdfpsOverlayController.aidl
@@ -22,13 +22,6 @@ import android.hardware.fingerprint.IUdfpsOverlayControllerCallback;
  * @hide
  */
 oneway interface IUdfpsOverlayController {
-    const int REASON_UNKNOWN = 0;
-    const int REASON_ENROLL_FIND_SENSOR = 1;
-    const int REASON_ENROLL_ENROLLING = 2;
-    const int REASON_AUTH_BP = 3; // BiometricPrompt
-    const int REASON_AUTH_FPM_KEYGUARD = 4; // FingerprintManager usage from Keyguard
-    const int REASON_AUTH_FPM_OTHER = 5; // Other FingerprintManager usage
-
     // Shows the overlay.
     void showUdfpsOverlay(int sensorId, int reason, IUdfpsOverlayControllerCallback callback);