fix: location flow on iOS devices

src/app/modules/data/list/food-data-list.component.ts

@@ -13,7 +13,9 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {Component} from '@angular/core';
+import {MapPosition} from '../../map/position.service';
 import {SearchPageComponent} from './search-page.component';
+import {Geolocation} from '@capacitor/geolocation';
 
 /**
  * Presents a list of places for eating/drinking
@@ -91,4 +93,28 @@ export class FoodDataListComponent extends SearchPageComponent {
       ];
     }
   }
+
+  async ionViewWillEnter() {
+    await super.ionViewWillEnter();
+    this.subscriptions.push(
+      this.positionService
+        .watchCurrentLocation(this.constructor.name, {enableHighAccuracy: false, maximumAge: 1000})
+        .subscribe({
+          next: (position: MapPosition) => {
+            this.positionService.position = position;
+          },
+          error: async _error => {
+            this.positionService.position = undefined;
+            await Geolocation.checkPermissions();
+          },
+        }),
+    );
+  }
+
+  ionViewWillLeave() {
+    void this.positionService.clearWatcher(this.constructor.name);
+    for (const sub of this.subscriptions) {
+      sub.unsubscribe();
+    }
+  }
 }