Добавлена проверка статуса токена, обработка статуса токена

android/app/build.gradle

@@ -25,7 +25,7 @@ android {
     defaultConfig {
         targetSdkVersion 21
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        applicationId "com.dinnect.checker"
+        applicationId "com.dinect.checker"
     }
 
     buildTypes {

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.dinnect.checker"
+    package="com.dinect.checker"
     android:versionCode="1"
     android:versionName="0.0.1">
 
@@ -18,7 +18,7 @@
          additional functionality it is fine to subclass or reimplement
          FlutterApplication and put your custom class here. -->
     <application android:name="io.flutter.app.FlutterApplication" android:label="checker" android:icon="@mipmap/ic_launcher">
-        <activity android:name="com.dinnect.checker.activity.MainActivity"
+        <activity android:name="com.dinect.checker.activity.MainActivity"
                   android:launchMode="singleTop"
                   android:theme="@android:style/Theme.Black.NoTitleBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
@@ -30,11 +30,11 @@
             </intent-filter>
         </activity>
 
-        <activity android:name="com.dinnect.checker.activity.CameraActivity"
+        <activity android:name="com.dinect.checker.activity.CameraActivity"
                   android:theme="@android:style/Theme.Black.NoTitleBar"/>
 
         <service
-                android:name="com.dinnect.checker.service.RegistrationIntentService"
+                android:name="com.dinect.checker.service.RegistrationIntentService"
                 android:exported="false"/>
 
     </application>

android/app/src/main/java/com/dinect/checker/activity/CameraActivity.java

@@ -1,4 +1,4 @@
-package com.dinnect.checker.activity;
+package com.dinect.checker.activity;
 
 import android.app.Activity;
 import android.content.pm.ActivityInfo;
@@ -29,8 +29,8 @@ import net.sourceforge.zbar.Symbol;
 import net.sourceforge.zbar.SymbolSet;
 import net.sourceforge.zbar.Config;
 
-import com.dinnect.checker.R;
-import com.dinnect.checker.view.CameraPreview;
+import com.dinect.checker.R;
+import com.dinect.checker.view.CameraPreview;
 
 public class CameraActivity extends Activity {
 

android/app/src/main/java/com/dinect/checker/activity/MainActivity.java

@@ -1,10 +1,12 @@
-package com.dinnect.checker.activity;
+package com.dinect.checker.activity;
 
 import android.os.Bundle;
+import android.content.Context;
 import android.content.Intent;
 import android.util.Log;
-import com.dinnect.checker.activity.CameraActivity;
-import com.dinnect.checker.service.RegistrationIntentService;
+import android.content.SharedPreferences;
+import com.dinect.checker.activity.CameraActivity;
+import com.dinect.checker.service.RegistrationIntentService;
 
 import io.flutter.app.FlutterActivity;
 import io.flutter.plugins.GeneratedPluginRegistrant;
@@ -16,20 +18,27 @@ import io.flutter.plugin.common.MethodChannel.Result;
 
 import com.google.android.gms.iid.InstanceID;
 
+import java.util.Map;
+
 public class MainActivity extends FlutterActivity {
 
-    private static final String INSTANCE_ID_CHANNEL = "com.dinnect.checker/instance_id";
+    private static final String INSTANCE_ID_CHANNEL = "com.dinect.checker/instance_id";
+    private static final String PREF_POS_TOKEN = "pref_pos_token";
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         GeneratedPluginRegistrant.registerWith(this);
 
+        final SharedPreferences preferences = getPreferences(Context.MODE_PRIVATE);
+
         new MethodChannel(getFlutterView(), INSTANCE_ID_CHANNEL).setMethodCallHandler(
                 new MethodCallHandler() {
                     @Override
                     public void onMethodCall(MethodCall call, Result result) {
-                        if (call.method.equals("getInstanceID")) {
+                        switch (call.method) {
+
+                            case "getInstanceID":
 
                                 InstanceID instanceID = InstanceID.getInstance(MainActivity.this);
                                 String id = instanceID.getId();
@@ -39,9 +48,26 @@ public class MainActivity extends FlutterActivity {
                                 } else {
                                     result.error("UNAVAILABLE", "Can't get instanceID.", null);
                                 }
+                                break;
 
-                        } else {
+                            case "saveToken":
+                                Map arguments = call.arguments();
+                                String token = (String) arguments.get("token");
+                                Log.d("kifio", token);
+                                preferences.edit().putString(PREF_POS_TOKEN, token).apply();
+                                break;
+
+                            case "getToken":
+                                result.success(preferences.getString(PREF_POS_TOKEN, null));
+                                break;
+
+                            case "startScanner":
+                                startActivity(new Intent(MainActivity.this, CameraActivity.class));
+                                break;
+
+                            default:
                                 result.notImplemented();
+                                break;
                         }
                     }
                 });
@@ -55,4 +81,12 @@ public class MainActivity extends FlutterActivity {
 
     }
 
+    public void saveToken() {
+
+    }
+
+    public void getToken() {
+
+    }
+
 }

android/app/src/main/java/com/dinect/checker/service/RegistrationIntentService.java

@@ -1,4 +1,4 @@
-package com.dinnect.checker.service;
+package com.dinect.checker.service;
 
 import android.app.IntentService;
 import android.content.Intent;

android/app/src/main/java/com/dinect/checker/view/CameraPreview.java

@@ -1,4 +1,4 @@
-package com.dinnect.checker.view;
+package com.dinect.checker.view;
 
 import java.io.IOException;
 

lib/activate_token.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'main.dart';
+
+/// Экран регистрации магазина и кассы.
+class FinishRegistrationScreen extends StatefulWidget {
+  @override State createState() => new _RegistrationScreenState();
+}
+
+class _RegistrationScreenState extends BaseState<FinishRegistrationScreen> {
+
+  @override Widget build(BuildContext context) {
+    return new Scaffold(appBar: _getAppBar(), body: _getScreen(context));
+  }
+
+  AppBar _getAppBar() {
+    return new AppBar(title: new Text("Регистрация магазина"),
+        backgroundColor: const Color(0xff4272e7),  actions: <Widget>[
+          new IconButton(
+            icon: new Icon(Icons.help_outline),
+            tooltip: 'Air it',
+            onPressed: faq,
+          ),
+          new IconButton(
+            icon: new Image(height: 24.0, width: 24.0, image: new AssetImage(logout_png)),
+            tooltip: 'Restitch it',
+            onPressed: logout,
+          )
+        ]);
+  }
+
+  Widget _getScreen(BuildContext context) {
+    return new Center(child: new Column(children: <Widget>[
+      _getLogo(),
+      _getDecoratedInputField(merchantIDHint),
+      _getDecoratedInputField(posIDHint),
+      _getMessage(),
+      _getButton(context)
+    ]));
+  }
+
+  Container _getLogo() {
+    return new Container(padding: new EdgeInsets.only(top: 16.0, bottom: 16.0),
+        child: new Image.asset(logo_png, height: 24.0, width: 156.0));
+  }
+
+  Container _getDecoratedInputField(String hint) {
+    return new Container(
+        padding: new EdgeInsets.only(left: 28.0, right: 28.0, top: 8.0),
+        child: new Container(height: 48.0,
+            padding: new EdgeInsets.only(left: 16.0, right: 16.0),
+            decoration: _getDecoraionForInputField(),
+            child: _getInputField(hint))) ;
+  }
+
+  TextField _getInputField(String hint) {
+    return new TextField(decoration: new InputDecoration(hintText: hint,
+        hideDivider: true,
+        hintStyle: new TextStyle(color: const Color(0xffa5a5a5),
+            fontSize: 16.0)), onChanged: null);
+  }
+
+  Container _getMessage() {
+    return new Container(padding: new EdgeInsets.only(top: 20.0, left: 26.0, right: 26.0),
+        child: new Container(height: 128.0, decoration: _getDecoraionForMessageField(),
+            padding: new EdgeInsets.only(top: 16.0, bottom: 8.0, left: 28.0, right: 28.0),
+            child: new Text('Запрос на активацию программы отправлен, дождитесь подтверждения активации администратором',
+                textAlign: TextAlign.center, style: new TextStyle(fontWeight: FontWeight.bold, color: const Color(0xff4e3a19)))));
+  }
+
+  Decoration _getDecoraionForMessageField() {
+    return new BoxDecoration(image: new DecorationImage(
+      image: new ExactAssetImage(activate_token_bg_png), fit: BoxFit.fill));
+  }
+
+  Decoration _getDecoraionForInputField() {
+    return new BoxDecoration(color: Colors.white,
+        border: new Border.all(
+          color: const Color(0xffcfd8dc), width: 1.0,),
+        borderRadius: new BorderRadius.all(new Radius.circular(4.0)));
+  }
+
+  Container _getButton(BuildContext context) {
+    return new Container(padding: new EdgeInsets.only(top: 36.0),
+        child: new Container(height: 64.0, padding: new EdgeInsets.all(8.0),
+            child: new RaisedButton(child: new Text('Обновить статус активации',
+                style: new TextStyle(color: Colors.white)),
+                onPressed: _checkToken(context),
+                disabledColor: const Color(0xffbfbfbf),
+                color: const Color(0xff3078c0))));
+  }
+}
+
+_checkToken(BuildContext context) {
+  checkToken(context, new CheckTokenCallback());
+}
+
+class CheckTokenCallback extends Callback {
+
+  call(BuildContext context) {
+    startScanner();
+  }
+}

lib/main.dart

@@ -1,17 +1,75 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'splash.dart';
+import 'dart:async';
+import 'dart:convert';
 
-const String _name = 'Ivan Murashov';
+/// Главный класс приложения.
+/// Здесь распоосложены константы и некоторые методы, которые могут вызываться с разных экранов приложения.
+
+// Serious constants
 const String intUrl = 'https://pos-api-int.dinect.com/20130701/';
 const String intToken = '9fec83cdca38c357e6b65dbb17514cdd36bf2a08';
 
+// Hints
+const String merchantIDHint = 'ID магазина';
+const String posIDHint = 'Номер кассы';
+
+// Assets
+const String logo_png = 'assets/registration_logo.png';
+const String splash_png = 'assets/splash.png';
+const String logout_png = 'assets/logout.png';
+const String activate_token_bg_png = 'assets/activate_token_message_background.png';
+
 final httpClient = createHttpClient();
 
 void main() {
   runApp(new Checker());
 }
 
+/// Токен кассы. Инициализируется при регистрации.
+String token;
+
+/// Проверка статуса токена. Токен может быть активирован, либо не активирован.
+void checkToken(BuildContext context, Callback callback) {
+
+  String url = intUrl + 'tokens/' + token + '?_dmapptoken=' + intToken;
+  print(url);
+
+  httpClient.get(url).then((response) {
+
+    print(response.body);
+    Map parsedMap = JSON.decode(response.body);
+    bool active = parsedMap['active'];
+
+    if (!active) {
+      callback.call(context);
+    } else {
+      // Запускается экран сканера, токен кассы активирован, с его помощью можно делать запросы к pos-api.
+      startScanner();
+    }
+
+  }).catchError((error) {
+    print(error.toString());
+  });
+}
+
+/// Запуск спецефичной для каждой платформы части приложения - сканера.
+/// Может производиться с нескольких экранов (splash, finish_registration).
+startScanner() async{
+  const platform = const MethodChannel('com.dinect.checker/instance_id');
+  await platform.invokeMethod('startScanner');
+}
+
+/// Навигация по приложению.
+/// widget - следующий экран приложения.
+pushRoute(BuildContext context, Widget widget) {
+  Navigator.of(context).push(new MaterialPageRoute<Null>(
+      builder: (BuildContext context) {
+        return widget;
+      }));
+}
+
 class Checker extends StatelessWidget {
   @override Widget build(BuildContext context) {
     return new MaterialApp(title: "DemoApp", home: new SplashScreen());
@@ -28,3 +86,7 @@ abstract class BaseState<T> extends State<StatefulWidget> {
 
   }
 }
+
+abstract class Callback {
+  void call(BuildContext context);
+}

lib/registration.dart

@@ -1,6 +1,8 @@
+import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'main.dart';
+import 'activate_token.dart';
 
 /// Экран регистрации магазина и кассы.
 class RegistrationScreen extends StatefulWidget {
@@ -9,14 +11,11 @@ class RegistrationScreen extends StatefulWidget {
 
 class _RegistrationScreenState extends BaseState<RegistrationScreen> {
 
-  static const String _merchantIDHint = 'ID магазина';
-  static const String _posIDHint = 'Номер кассы';
-
   String _merchantID = "";
   String _posID = "";
 
   @override Widget build(BuildContext context) {
-    return new Scaffold(appBar: _getAppBar(), body: _getScreen());
+    return new Scaffold(appBar: _getAppBar(), body: _getScreen(context));
   }
 
   AppBar _getAppBar() {
@@ -35,25 +34,19 @@ class _RegistrationScreenState extends BaseState<RegistrationScreen> {
         ]);
   }
 
-  Widget _getScreen() {
-    return new Center(child: new Column(children: _getChildren()));
+  Widget _getScreen(BuildContext context) {
+    return new Center(child: new Column(children: <Widget>[
+        _getLogo(),
+        _getDecoratedInputField(merchantIDHint, 0.0),
+        _getDecoratedInputField(posIDHint, 36.0),
+        _getButton(context)
+        ]));
   }
 
-  List<Widget> _getChildren() {
-    return<Widget>[
-      _getLogo(),
-      _getDecoratedInputField(_merchantIDHint, 0.0),
-      _getDecoratedInputField(_posIDHint, 36.0),
-      _getButton()
-    ];
-  }
 
   Container _getLogo() {
     return new Container(height: 192.0,
-        child: new Center(
-            child: new Image.asset('assets/registration_logo.png',
-                height: 24.0,
-                width: 156.0)));
+        child: new Image.asset(logo_png, height: 24.0, width: 156.0));
   }
 
   Container _getDecoratedInputField(String hint, double topPadding) {
@@ -75,9 +68,9 @@ class _RegistrationScreenState extends BaseState<RegistrationScreen> {
   void _handleUserInput(String hint, String text) {
     if (text.length > 0) {
       setState(() {
-        if (hint == _merchantIDHint)
+        if (hint == merchantIDHint)
           _merchantID = text;
-        else if (hint == _posIDHint)
+        else if (hint == posIDHint)
           _posID = text;
       });
     }
@@ -90,13 +83,14 @@ class _RegistrationScreenState extends BaseState<RegistrationScreen> {
         borderRadius: new BorderRadius.all(new Radius.circular(4.0)));
   }
 
-  Container _getButton() {
+  Container _getButton(BuildContext context) {
     return new Container(padding: new EdgeInsets.only(top: 36.0),
         child: new Container(height: 64.0, padding: new EdgeInsets.all(8.0),
             child: new RaisedButton(child: new Text('ЗАРЕГИСТРИРОВАТЬ',
                 style: new TextStyle(color: Colors.white)),
-                onPressed: _isFieldsAreFilled() ? () => _register(_merchantID) : null,
-                disabledColor: const Color(0xffbfbfbf))));
+                onPressed: _isFieldsAreFilled() ? () => _registerShop(context, _merchantID) : null,
+                disabledColor: const Color(0xffbfbfbf),
+                color: const Color(0xff3078c0))));
   }
 
   _isFieldsAreFilled() {
@@ -105,9 +99,13 @@ class _RegistrationScreenState extends BaseState<RegistrationScreen> {
     return _merchantID.length == 5 && _posID.length > 0;
   }
 
-  _register(String merchantShop) async {
+  void _registerShop(BuildContext context, String merchantShop) {
+    _register(context, merchantShop);
+  }
 
-    const platform = const MethodChannel('com.dinnect.checker/instance_id');
+  _register(BuildContext context, String merchantShop) async {
+
+    const platform = const MethodChannel('com.dinect.checker/instance_id');
     String url = intUrl + 'tokens/?_dmapptoken=' + intToken;
     String pos = await platform.invokeMethod('getInstanceID');
     print(pos);
@@ -127,6 +125,12 @@ class _RegistrationScreenState extends BaseState<RegistrationScreen> {
 
     httpClient.post(url, body: body).then((response) {
       print(response.body);
+      Map parsedMap = JSON.decode(response.body);
+      token = parsedMap['token'];
+      platform.invokeMethod('saveToken', {'token' : token}).then((value) {
+        print(value.toString());
+      });
+      pushRoute(context, new FinishRegistrationScreen());
     }).catchError((error) {
       print(error.toString());
     });

lib/splash.dart

@@ -1,24 +1,47 @@
-import 'dart:async';
-import 'registration.dart';
-
+import 'package:flutter/services.dart';
 import 'package:flutter/material.dart';
+import 'main.dart';
+import 'registration.dart';
+import 'activate_token.dart';
+import 'dart:async';
 
 class SplashScreen extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
 
+    // Splash скрин зависает мимнимум на 1 секунду.
+    // После этого начинается проверка токена.
     new Future.delayed(const Duration(milliseconds: 1000), () {
-      _goToNextScreen(context);
+      _showNextScreen(context);
     });
 
-    return new Image.asset('assets/splash.png', fit: BoxFit.cover);
+    return new Image.asset(logo_png, fit: BoxFit.cover);
   }
 
-  _goToNextScreen(BuildContext context) async {
-    Navigator.of(context).push(new MaterialPageRoute<Null>(
-        builder: (BuildContext context) {
-          return new RegistrationScreen();
-        }));
+  /// Запуск следующего экрана приложения.
+  _showNextScreen(BuildContext context) async {
+
+    const platform = const MethodChannel('com.dinect.checker/instance_id');
+    token = await platform.invokeMethod('getToken');
+
+    // В случае, если в приложении отсутствует токен,
+    // необходимо запустить регистрацию кассы.
+    if (token == null) {
+      pushRoute(context, new RegistrationScreen());
+    } else {
+      checkToken(context, new CheckTokenCallback());
+    }
+  }
+
+}
+
+class CheckTokenCallback extends Callback {
+
+  /// Запускается экран ожидания активации токена.
+  /// В реальности токен активируется в админке вручную,
+  /// на тестовом сервере токен активируется через несколько минут после создания.
+  call(BuildContext context) {
+    pushRoute(context, new FinishRegistrationScreen());
   }
 }

pubspec.yaml

@@ -23,6 +23,7 @@ flutter:
     - assets/registration_logo.png
     - assets/splash.png
     - assets/logout.png
+    - assets/activate_token_message_background.png
 
   # To add assets from package dependencies, first ensure the asset
   # is in the lib/ directory of the dependency. Then,