fix: background fetch crashing android app

src/app/app.component.ts

@@ -104,6 +104,7 @@ export class AppComponent implements AfterContentInit {
           color: getComputedStyle(document.documentElement)
             .getPropertyValue('--ion-background-color')
             .trim(),
+          darkButtons: true,
         });
       }
       await this.authNotificationsInit();

src/app/modules/about/about-page/about-page.component.ts

@@ -28,6 +28,8 @@ export class AboutPageComponent implements OnInit {
 
   version = packageJson.version;
 
+  appName: string;
+
   constructor(
     private readonly route: ActivatedRoute,
     private readonly configProvider: ConfigProvider,
@@ -35,7 +37,7 @@ export class AboutPageComponent implements OnInit {
 
   async ngOnInit() {
     const route = this.route.snapshot.url.map(it => it.path).join('/');
-
+    this.appName = (this.configProvider.getValue('name') as string) ?? 'StApps';
     this.content =
       (
         this.configProvider.getValue(

src/app/modules/about/about-page/about-page.html

@@ -29,7 +29,7 @@
   </ion-toolbar>
 </ion-header>
 <ion-content *ngIf="content">
-  <pre>StApps v{{ version }}</pre>
+  <pre>{{ appName }} v{{ version }}</pre>
   <about-page-content
     *ngFor="let element of content.content"
     [content]="element"

src/app/modules/background/schedule/schedule-sync.service.ts

@@ -92,8 +92,7 @@ export class ScheduleSyncService implements OnDestroy {
       const status = await BackgroundFetch.configure(
         {
           minimumFetchInterval: 15,
-          stopOnTerminate: false,
-          enableHeadless: true,
+          requiredNetworkType: 1,
         },
         async taskId => {
           await Promise.all([

src/app/modules/calendar/calendar.service.ts

@@ -20,8 +20,7 @@ import moment, {duration, Moment, unitOfTime} from 'moment';
 import {Dialog} from '@capacitor/dialog';
 import {CalendarInfo} from './calendar-info';
 import {Subject} from 'rxjs';
-
-const CALENDAR_NAME = 'StApps';
+import {ConfigProvider} from '../config/config.provider';
 
 const RECURRENCE_PATTERNS: Partial<
   Record<unitOfTime.Diff, string | undefined>
@@ -38,15 +37,23 @@ export class CalendarService {
 
   goToDateClicked = this.goToDate.asObservable();
 
+  calendarName = 'StApps';
+
   // eslint-disable-next-line @typescript-eslint/no-empty-function
-  constructor(readonly calendar: Calendar) {}
+  constructor(
+    readonly calendar: Calendar,
+    private readonly configProvider: ConfigProvider,
+  ) {
+    this.calendarName =
+      (this.configProvider.getValue('name') as string) ?? 'StApps';
+  }
 
   async createCalendar(): Promise<CalendarInfo | undefined> {
     await this.calendar.createCalendar({
-      calendarName: CALENDAR_NAME,
+      calendarName: this.calendarName,
       calendarColor: '#ff8740',
     });
-    return this.findCalendar(CALENDAR_NAME);
+    return this.findCalendar(this.calendarName);
   }
 
   async listCalendars(): Promise<CalendarInfo[] | undefined> {
@@ -60,8 +67,8 @@ export class CalendarService {
   }
 
   async purge(): Promise<CalendarInfo | undefined> {
-    if (await this.findCalendar(CALENDAR_NAME)) {
-      await this.calendar.deleteCalendar(CALENDAR_NAME);
+    if (await this.findCalendar(this.calendarName)) {
+      await this.calendar.deleteCalendar(this.calendarName);
     }
     return await this.createCalendar();
   }

src/app/modules/settings/page/calendar-sync-settings.html

@@ -44,6 +44,12 @@
             'settings.calendar.sync.syncWithCalendar' | translate
           }}</ion-label>
         </ion-item>
+        <!--
+        ~ TODO:
+        ~ background fetch is too unreliable to suggest our users that 
+        ~ they'll get a notification upon change of event/dateseries.
+        ~ This has to be a highly reliable service notifing users via APN/GCM.
+
         <ion-item>
           <ion-toggle
             [disabled]="isWeb"
@@ -59,6 +65,7 @@
             'settings.calendar.sync.eventNotifications' | translate
           }}</ion-label>
         </ion-item>
+        -->
         <ion-item>
           <ion-button
             [disabled]="isWeb || !syncEnabled"