floating action and bottom bar release

lib/core/models/authResponse.dart

@@ -0,0 +1,39 @@
+import 'user.dart';
+
+class AuthResponse {
+  final AuthBody body;
+  final int status;
+  final bool operation;  
+
+
+  AuthResponse( {this.body, this.status, this.operation});
+
+  factory AuthResponse.fromJson(Map<String, dynamic> json) {
+    return AuthResponse(
+      operation: json['operation'],
+      status: json['status'],
+      body: AuthBody.fromJson(json['body'])      
+    );
+  }
+}
+
+List<String> parseListString(json){
+  if(json==null) return null;
+  return new List<String>.from(json);
+}
+
+class AuthBody {
+  final List<String> email;
+  final List<String> password;
+  final String message;
+  final User user;
+  AuthBody({this.message, this.user, this.email, this.password});
+  factory AuthBody.fromJson(Map<String, dynamic> json) {
+    return AuthBody(
+      email: json['email']!=null ? parseListString(json['email']): null,
+      message: json['message'],
+      password: json['password']!=null ? parseListString(json['password']): null,
+      user: json['user']!=null ? User.fromJson(json['user']) : null
+    );
+  }
+} 

lib/core/models/dialog_models.dart

@@ -0,0 +1,26 @@
+import 'package:flutter/foundation.dart';
+
+class DialogRequest {
+  final String title;
+  final String description;
+  final String buttonTitle;
+  final String cancelTitle;
+
+  DialogRequest(
+      {@required this.title,
+      @required this.description,
+      @required this.buttonTitle,
+      this.cancelTitle});
+}
+
+class DialogResponse {
+  final String fieldOne;
+  final String fieldTwo;
+  final bool confirmed;
+
+  DialogResponse({
+    this.fieldOne,
+    this.fieldTwo,
+    this.confirmed,
+  });
+}

lib/core/services/dialog_service.dart

@@ -0,0 +1,54 @@
+import 'dart:async';
+
+import 'package:aman_kassa_flutter/core/models/dialog_models.dart';
+import 'package:flutter/cupertino.dart';
+
+class DialogService {
+  GlobalKey<NavigatorState> _dialogNavigationKey = GlobalKey<NavigatorState>();
+  Function(DialogRequest) _showDialogListener;
+  Completer<DialogResponse> _dialogCompleter;
+
+  GlobalKey<NavigatorState> get dialogNavigationKey => _dialogNavigationKey;
+
+  /// Registers a callback function. Typically to show the dialog
+  void registerDialogListener(Function(DialogRequest) showDialogListener) {
+    _showDialogListener = showDialogListener;
+  }
+
+  /// Calls the dialog listener and returns a Future that will wait for dialogComplete.
+  Future<DialogResponse> showDialog({
+    String title,
+    String description,
+    String buttonTitle = 'Ok',
+  }) {
+    _dialogCompleter = Completer<DialogResponse>();
+    _showDialogListener(DialogRequest(
+      title: title,
+      description: description,
+      buttonTitle: buttonTitle,
+    ));
+    return _dialogCompleter.future;
+  }
+
+  /// Shows a confirmation dialog
+  Future<DialogResponse> showConfirmationDialog(
+      {String title,
+      String description,
+      String confirmationTitle = 'Ok',
+      String cancelTitle = 'Cancel'}) {
+    _dialogCompleter = Completer<DialogResponse>();
+    _showDialogListener(DialogRequest(
+        title: title,
+        description: description,
+        buttonTitle: confirmationTitle,
+        cancelTitle: cancelTitle));
+    return _dialogCompleter.future;
+  }
+
+  /// Completes the _dialogCompleter to resume the Future's execution call
+  void dialogComplete(DialogResponse response) {
+    _dialogNavigationKey.currentState.pop();
+    _dialogCompleter.complete(response);
+    _dialogCompleter = null;
+  }
+}

lib/widgets/dialog_manager.dart

@@ -0,0 +1,53 @@
+import 'package:aman_kassa_flutter/core/locator.dart';
+import 'package:aman_kassa_flutter/core/models/dialog_models.dart';
+import 'package:aman_kassa_flutter/core/services/dialog_service.dart';
+import 'package:flutter/material.dart';
+
+class DialogManager extends StatefulWidget {
+  final Widget child;
+  DialogManager({Key key, this.child}) : super(key: key);
+
+  _DialogManagerState createState() => _DialogManagerState();
+}
+
+class _DialogManagerState extends State<DialogManager> {
+  DialogService _dialogService = locator<DialogService>();
+
+  @override
+  void initState() {
+    super.initState();
+    _dialogService.registerDialogListener(_showDialog);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return widget.child;
+  }
+
+  void _showDialog(DialogRequest request) {
+    var isConfirmationDialog = request.cancelTitle != null;
+    showDialog(
+        context: context,
+        builder: (context) => AlertDialog(
+              title: Text(request.title),
+              content: Text(request.description),
+              actions: <Widget>[
+                if (isConfirmationDialog)
+                  FlatButton(
+                    child: Text(request.cancelTitle),
+                    onPressed: () {
+                      _dialogService
+                          .dialogComplete(DialogResponse(confirmed: false));
+                    },
+                  ),
+                FlatButton(
+                  child: Text(request.buttonTitle),
+                  onPressed: () {
+                    _dialogService
+                        .dialogComplete(DialogResponse(confirmed: true));
+                  },
+                ),
+              ],
+            ));
+  }
+}