Correct? interfae usage

4 files changed, 4 insertions, 4 deletions

diff --git a/lib/control/scanner_controller.dart b/lib/control/scanner_controller.dart
index 5c934ef..5e330b3 100644
--- a/lib/control/scanner_controller.dart
+++ b/lib/control/scanner_controller.dart
@@ -24,7 +24,7 @@ enum ScanAvailability { unavailable, available }
 
 /// Represents a scanner controller.
 /// It emits devices which may be connected to later.
-abstract class ScannerController {
+abstract interface class ScannerController {
   Stream<List<Device>> get scanResultsStream;
   Stream<ScanStatus> get statusStream;
   Stream<ScanAvailability> get availabilityStream;
diff --git a/lib/control/scanner_controller_impl.dart b/lib/control/scanner_controller_impl.dart
index 1b55105..e24cabf 100644
--- a/lib/control/scanner_controller_impl.dart
+++ b/lib/control/scanner_controller_impl.dart
@@ -21,7 +21,7 @@ import 'package:uvok_epaper_badge/model/device/device.dart';
 import 'package:rxdart/rxdart.dart';
 
 /// Helper class which provides the setStatus method.
-abstract class ScannerControllerImpl extends ScannerController {
+abstract class ScannerControllerImpl implements ScannerController {
   final BehaviorSubject<ScanStatus> _scanStatusController =
       BehaviorSubject<ScanStatus>();
   final BehaviorSubject<List<Device>> _deviceContoller =
diff --git a/lib/model/connection/device_connection.dart b/lib/model/connection/device_connection.dart
index ef8a8fc..f50bd2c 100644
--- a/lib/model/connection/device_connection.dart
+++ b/lib/model/connection/device_connection.dart
@@ -17,7 +17,7 @@ import 'package:flutter/foundation.dart';
 
 enum ConnectionStatus { disconnected, connected, error }
 
-abstract class DeviceConnection {
+abstract interface class DeviceConnection {
   Future<void> connect();
   Future<void> disconnect();
   ValueNotifier<ConnectionStatus> get status;
diff --git a/lib/model/device/device.dart b/lib/model/device/device.dart
index 1d9530b..577ac9e 100644
--- a/lib/model/device/device.dart
+++ b/lib/model/device/device.dart
@@ -14,7 +14,7 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 /// Represents a (badge) device to be connected to.
-abstract class Device {
+abstract interface class Device {
   String? get name;
   String? get address;
   int? get rssi;