fix: zachování zapnutí skrz flutter_background

CHANGELOG.md

@@ -1,3 +1,5 @@
+# 1.4.3
+- Android: přidat permanentní oznámení
 # 1.4.2
 - aktualizace knihovny flutter_local_notifications
 - lepší podpora pro Android 13

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="cz.hernikplays.opencanteen">
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
    <application
         android:label="OpenCanteen"
         android:name="${applicationName}"

lib/lang/lang.dart

@@ -168,4 +168,6 @@ abstract class Languages {
   String get error;
 
   String get needRemember;
+
+  String get wakeLock;
 }

lib/lang/lang_cz.dart

@@ -237,4 +237,8 @@ class LanguageCz extends Languages {
 
   @override
   String get review => "Ohodnotit aplikaci";
+
+  @override
+  String get wakeLock =>
+      "Toto oznámení slouží k tomu, aby nebyl proces spontánně ukončen.";
 }

lib/lang/lang_en.dart

@@ -235,4 +235,8 @@ class LanguageEn extends Languages {
 
   @override
   String get review => "Review the app";
+
+  @override
+  String get wakeLock =>
+      "This notification is used to hopefully block unexpected process kill.";
 }

lib/main.dart

@@ -47,12 +47,14 @@ void oznamitPredem(SharedPreferences prefs, tz.Location l) async {
   String title;
 
   String locale = Intl.getCurrentLocale();
+  debugPrint(locale);
   switch (locale) {
     case "cs_CZ":
       title = LanguageCz().lunchNotif;
       break;
     default:
       title = LanguageEn().lunchNotif;
+      break;
   }
 
   /*if (prefs.getBool("offline") ?? false) {
@@ -73,6 +75,7 @@ void oznamitPredem(SharedPreferences prefs, tz.Location l) async {
           TimeOfDay(hour: kdy.hour, minute: kdy.minute),
         );
         if (cas.isBefore(DateTime.now())) return;
+
         // data o oznámení
         const AndroidNotificationDetails androidSpec =
             AndroidNotificationDetails('predobedem', 'Oznámení před obědem',
@@ -94,6 +97,7 @@ void oznamitPredem(SharedPreferences prefs, tz.Location l) async {
                 UILocalNotificationDateInterpretation.absoluteTime);
       } on StateError catch (_) {
         // nenalezeno
+        debugPrint("Nenalezeno");
       }
     }
     // }

lib/okna/jidelnicek.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:canteenlib/canteenlib.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_background/flutter_background.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:opencanteen/okna/nastaveni.dart';
@@ -378,6 +379,22 @@ class _JidelnicekPageState extends State<JidelnicekPage> {
   void nactiNastaveni() async {
     var prefs = await SharedPreferences.getInstance();
     _skipWeekend = prefs.getBool("skip") ?? false;
+    if (prefs.getBool("oznamit") ?? false) {
+      if (!mounted) return;
+      if (Platform.isAndroid) {
+        // ! TODO: OTESTOVAT, JESTLI FUNGUJE IMPORT NA IOSu
+        var androidConfig = FlutterBackgroundAndroidConfig(
+            notificationTitle: "OpenCanteen",
+            notificationText: Languages.of(context)!.wakeLock,
+            notificationImportance: AndroidNotificationImportance.Default,
+            notificationIcon:
+                const AndroidResource(name: 'notif_icon', defType: 'drawable'),
+            enableWifiLock: true);
+        bool success =
+            await FlutterBackground.initialize(androidConfig: androidConfig);
+        if (success) await FlutterBackground.enableBackgroundExecution();
+      }
+    }
     if (!mounted) return;
     kontrolaTyden(context);
   }

lib/okna/nastaveni.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:canteenlib/canteenlib.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_background/flutter_background.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:flutter_native_timezone/flutter_native_timezone.dart';
 import 'package:path_provider/path_provider.dart';
@@ -235,9 +236,23 @@ class _NastaveniState extends State<Nastaveni> {
           var l =
               tz.getLocation(await FlutterNativeTimezone.getLocalTimezone());
           if (!mounted) return;
+          if (Platform.isAndroid) {
+            // ! TODO: OTESTOVAT, JESTLI FUNGUJE IMPORT NA IOSu
+            var androidConfig = FlutterBackgroundAndroidConfig(
+                notificationTitle: "OpenCanteen",
+                notificationText: Languages.of(context)!.wakeLock,
+                notificationImportance: AndroidNotificationImportance.Default,
+                notificationIcon: const AndroidResource(
+                    name: 'notif_icon', defType: 'drawable'),
+                enableWifiLock: true);
+            bool success = await FlutterBackground.initialize(
+                androidConfig: androidConfig);
+            if (success) await FlutterBackground.enableBackgroundExecution();
+          }
           await widget.n.zonedSchedule(
               // Vytvoří nové oznámení pro daný čas a datum
               0,
+              // ignore: use_build_context_synchronously
               Languages.of(context)!.lunchNotif,
               "${jidlo.varianta} - ${jidlo.nazev}",
               tz.TZDateTime.from(den, l),

pubspec.lock

@@ -111,6 +111,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_background:
+    dependency: "direct main"
+    description:
+      name: flutter_background
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   flutter_launcher_icons:
     dependency: "direct dev"
     description:

pubspec.yaml

@@ -6,7 +6,7 @@ publish_to: 'none'
 # The following defines the version and build number for your application.
 # A version number is three numbers separated by dots, like 1.2.43
 # followed by an optional build number separated by a +.
-version: 1.4.2+22
+version: 1.4.3+23
 
 environment:
   sdk: ">=2.16.1 <3.0.0"
@@ -27,6 +27,7 @@ dependencies:
   flutter_native_timezone: ^2.0.0
   intl: ^0.17.0
   package_info_plus: ^1.4.3+1
+  flutter_background: ^1.1.0
 
 dev_dependencies:
   flutter_lints: ^2.0.1