init

lib/core/mixins/stream_subscription_mixin.dart

@@ -0,0 +1,20 @@
+import 'dart:async';
+
+import 'package:flutter/widgets.dart';
+
+mixin StreamSubscriptionMixin<T extends StatefulWidget> on State<T> {
+  final List<StreamSubscription<dynamic>> _subscriptions = [];
+
+  void addSubscription(StreamSubscription<dynamic> subscription) {
+    _subscriptions.add(subscription);
+  }
+
+  @override
+  void dispose() {
+    for (final subscription in _subscriptions) {
+      subscription.cancel();
+    }
+    _subscriptions.clear();
+    super.dispose();
+  }
+}