Merge "Add PairingProgressListener.java"
diff --git a/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/PairingProgressListener.java b/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/PairingProgressListener.java
new file mode 100644
index 0000000..8f8e498
--- /dev/null
+++ b/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/PairingProgressListener.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 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 com.android.server.nearby.common.bluetooth.fastpair;
+
+/** Callback interface for pairing progress. */
+public interface PairingProgressListener {
+    /** Enum for pairing events. */
+    enum PairingEvent {
+        START,
+        SUCCESS,
+        FAILED,
+        UNKNOWN;
+
+        public static PairingEvent fromOrdinal(int ordinal) {
+            PairingEvent[] values = PairingEvent.values();
+            if (ordinal < 0 || ordinal >= values.length) {
+                return UNKNOWN;
+            }
+            return values[ordinal];
+        }
+    }
+
+    /** Callback function upon pairing progress update. */
+    void onPairingProgressUpdating(PairingEvent event, String message);
+}