added cargo files

PinePods-0.8.2/mobile/lib/bloc/bloc.dart

@@ -0,0 +1,43 @@
+// Copyright 2020 Ben Hills and the project contributors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:pinepods_mobile/bloc/podcast/audio_bloc.dart';
+import 'package:rxdart/rxdart.dart';
+
+/// Base class for all BLoCs to give each a hook into the mobile
+/// lifecycle state of paused, resume or detached.
+abstract class Bloc {
+  /// Handle lifecycle events
+  final PublishSubject<LifecycleState> _lifecycleSubject = PublishSubject<LifecycleState>(sync: true);
+
+  Bloc() {
+    _init();
+  }
+
+  void _init() {
+    _lifecycleSubject.listen((state) async {
+      if (state == LifecycleState.resume) {
+        resume();
+      } else if (state == LifecycleState.pause) {
+        pause();
+      } else if (state == LifecycleState.detach) {
+        detach();
+      }
+    });
+  }
+
+  void dispose() {
+    if (_lifecycleSubject.hasListener) {
+      _lifecycleSubject.close();
+    }
+  }
+
+  void resume() {}
+
+  void pause() {}
+
+  void detach() {}
+
+  void Function(LifecycleState) get transitionLifecycleState => _lifecycleSubject.sink.add;
+}