Implement the automatic update check and installation

android/app/src/main/AndroidManifest.xml

@@ -9,6 +9,7 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>
     <uses-permission android:name="android.permission.INSTALL_PACKAGES"/>
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
 
 
     <application
@@ -42,6 +43,10 @@
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
+
+        <provider android:name="sk.fourq.otaupdate.OtaUpdateFileProvider" android:authorities="${applicationId}.ota_update_provider" android:exported="false" android:grantUriPermissions="true">
+            <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/filepaths" />
+        </provider>
     </application>
     <!-- Required to query activities that can process text, see:
          https://developer.android.com/training/package-visibility and

android/app/src/main/res/xml/filepaths.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+<files-path name="internal_apk_storage" path="ota_update/"/>
+</paths>

latest-releases.json

@@ -1,3 +1,3 @@
 {
-  "alpha": "1.0.0-dev.1"
+  "alpha": "1.0.0-dev.2"
 }

lib/consts.dart

@@ -0,0 +1,35 @@
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+
+class TTConsts {
+  static const UPDATE_URL =
+      "https://git.zontreck.com/AriasCreations/TimeTracker/raw/branch/main/latest-releases.json";
+  static const VERSION = "1.0.0-dev.2";
+  static bool UPDATE_AVAILABLE = false;
+  static UpdateChannel UPDATE_CHANNEL = UpdateChannel.alpha;
+
+  static Future<void> checkUpdate() async {
+    Dio dio = Dio();
+    var reply = await dio.get(UPDATE_URL);
+    var jsData = json.decode(reply.data as String);
+
+    String serverVersion = jsData[UPDATE_CHANNEL.toString()] as String;
+    if (VERSION == serverVersion) {
+      // Up to date
+      UPDATE_AVAILABLE = false;
+    } else
+      UPDATE_AVAILABLE = true;
+  }
+}
+
+enum UpdateChannel {
+  alpha,
+  beta,
+  stable;
+
+  @override
+  String toString() {
+    return name;
+  }
+}

lib/main.dart

@@ -1,122 +1,9 @@
 import 'package:flutter/material.dart';
+import 'package:timetrack/consts.dart';
+import 'package:timetrack/pages/MainApp.dart';
 
-void main() {
-  runApp(const MyApp());
-}
-
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
-
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
-      ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            const Text('You have pushed the button this many times:'),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-          ],
-        ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
-    );
-  }
+Future<void> main() async {
+  await TTConsts.checkUpdate();
+
+  runApp(MainApp());
 }

lib/pages/HomePage.dart

@@ -0,0 +1,80 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:libacflutter/Constants.dart';
+import 'package:ota_update/ota_update.dart';
+import 'package:timetrack/consts.dart';
+
+class HomePage extends StatefulWidget {
+  HomePage({super.key});
+
+  @override
+  State<StatefulWidget> createState() {
+    return _HomePageState();
+  }
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  void didChangeDependencies() {
+    setState(() {});
+    super.didChangeDependencies();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("Time Tracker"),
+        backgroundColor: LibACFlutterConstants.TITLEBAR_COLOR,
+      ),
+      drawer: Drawer(
+        elevation: 8,
+        child: Column(
+          children: [
+            DrawerHeader(
+              child: Column(
+                children: [
+                  Text("Time Tracker"),
+                  Text("Created by Tara Piccari"),
+                  Text("Copyright 2025 - Present"),
+                ],
+              ),
+            ),
+            DrawerHeader(
+              child: Column(
+                children: [
+                  Text("Version: ${TTConsts.VERSION}"),
+                  Text("Update Channel: ${TTConsts.UPDATE_CHANNEL}"),
+                  Text(
+                    "* ${TTConsts.UPDATE_AVAILABLE ? "Update Is Available" : "You are up to date!"} *",
+                  ),
+                  ElevatedButton(
+                    onPressed: () async {
+                      await TTConsts.checkUpdate();
+
+                      setState(() {});
+                    },
+                    child: Text("Check for Update"),
+                  ),
+                  ElevatedButton(
+                    onPressed: () async {
+                      OtaUpdate()
+                          .execute(
+                            "https://ci.zontreck.com/job/Projects/job/Dart/job/Time%20Tracker/job/main/lastSuccessfulBuild/artifact/build/app/outputs/flutter-apk/timetrack.apk",
+                            destinationFilename: "timetrack.apk",
+                          )
+                          .listen((OtaEvent event) {
+                            //setState(() => currentEvent = event);
+                          });
+                    },
+                    child: Text("Install Update"),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/pages/MainApp.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:timetrack/pages/HomePage.dart';
+
+class MainApp extends StatefulWidget {
+  MainApp({super.key});
+
+  @override
+  State<StatefulWidget> createState() {
+    return MainAppState();
+  }
+}
+
+class MainAppState extends State<MainApp> {
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: "Time Tracker",
+      routes: {"/": (ctx) => HomePage()},
+      theme: ThemeData.dark(),
+    );
+  }
+}

pubspec.yaml

@@ -40,6 +40,8 @@ dependencies:
   libacflutter:
     hosted: https://git.zontreck.com/api/packages/Packages/pub/
     version: 1.0.31525+0222
+  dio: ^5.8.0+1
+  ota_update: ^7.0.1
 
 dev_dependencies:
   flutter_test:

test/test_update_checker.dart

@@ -0,0 +1,13 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timetrack/consts.dart';
+
+void main() {
+  test("Test the update checking behavior", () async {
+    await TTConsts.checkUpdate();
+    if (TTConsts.UPDATE_AVAILABLE) {
+      print("An update is available for the current update channel");
+    } else {
+      print("No updates available");
+    }
+  });
+}

test/widget_test.dart

@@ -8,12 +8,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:timetrack/main.dart';
+import 'package:timetrack/pages/MainApp.dart';
 
 void main() {
   testWidgets('Counter increments smoke test', (WidgetTester tester) async {
     // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
+    await tester.pumpWidget(MainApp());
 
     // Verify that our counter starts at 0.
     expect(find.text('0'), findsOneWidget);