Merge "Expose service changed event to application (2/3)"

core/java/android/bluetooth/BluetoothGatt.java

@@ -688,6 +688,31 @@ public final class BluetoothGatt implements BluetoothProfile {
                         }
                     });
                 }
+
+                /**
+                 * Callback invoked when service changed event is received
+                 * @hide
+                 */
+                @Override
+                public void onServiceChanged(String address) {
+                    if (DBG) {
+                        Log.d(TAG, "onServiceChanged() - Device=" + address);
+                    }
+
+                    if (!address.equals(mDevice.getAddress())) {
+                        return;
+                    }
+
+                    runOrQueueCallback(new Runnable() {
+                        @Override
+                        public void run() {
+                            final BluetoothGattCallback callback = mCallback;
+                            if (callback != null) {
+                                callback.onServiceChanged(BluetoothGatt.this);
+                            }
+                        }
+                    });
+                }
             };
 
     /*package*/ BluetoothGatt(IBluetoothGatt iGatt, BluetoothDevice device,

core/java/android/bluetooth/BluetoothGattCallback.java

@@ -194,4 +194,17 @@ public abstract class BluetoothGattCallback {
     public void onConnectionUpdated(BluetoothGatt gatt, int interval, int latency, int timeout,
             int status) {
     }
+
+    /**
+     * Callback indicating service changed event is received
+     *
+     * <p>Receiving this event means that the GATT database is out of sync with
+     * the remote device. {@link BluetoothGatt#discoverServices} should be
+     * called to re-discover the services.
+     *
+     * @param gatt GATT client involved
+     * @hide
+     */
+    public void onServiceChanged(BluetoothGatt gatt) {
+    }
 }