small bug fixes

lib/src/services/mediafiles/mediafile.service.dart

@@ -24,6 +24,7 @@ class MediaFileService {
   }
 
   static Future<void> purgeTempFolder() async {
+    try {
       final tempDirectory = MediaFileService.buildDirectoryPath(
         'tmp',
         globalApplicationSupportDirectory,
@@ -70,7 +71,8 @@ class MediaFileService {
               } else {
                 // Check weather the image was send in a group. Then the images is preserved for two days in case another person stores the image.
                 // This also allows to reopen this image for two days.
-              final group = await twonlyDB.groupsDao.getGroup(message.groupId);
+                final group =
+                    await twonlyDB.groupsDao.getGroup(message.groupId);
                 if (group != null && !group.isDirectChat) {
                   delete = false;
                 }
@@ -85,6 +87,9 @@ class MediaFileService {
           file.deleteSync();
         }
       }
+    } catch (e) {
+      Log.error(e);
+    }
   }
 
   Future<void> updateFromDB() async {

lib/src/views/camera/camera_preview_components/main_camera_controller.dart

@@ -120,10 +120,6 @@ class MainCameraController {
     }
 
     selectedCameraDetails.isZoomAble = false;
-    if (selectedCameraDetails.cameraId != cameraId) {
-      // switched camera so reset the scaleFactor
-      selectedCameraDetails.scaleFactor = 1;
-    }
 
     if (cameraController == null) {
       cameraController = CameraController(
@@ -136,14 +132,28 @@ class MainCameraController {
       );
       await cameraController?.initialize();
       await cameraController?.startImageStream(_processCameraImage);
+      await cameraController?.setZoomLevel(selectedCameraDetails.scaleFactor);
     } else {
-      await HapticFeedback.lightImpact();
+      try {
+        if (!isVideoRecording) {
           await cameraController?.stopImageStream();
+        }
+      } catch (e) {
+        Log.info(e);
+      }
+      selectedCameraDetails.scaleFactor = 1;
+
+      await cameraController?.setZoomLevel(1);
       await cameraController?.setDescription(gCameras[cameraId]);
+      try {
+        if (!isVideoRecording) {
           await cameraController?.startImageStream(_processCameraImage);
         }
+      } catch (e) {
+        Log.info(e);
+      }
+    }
 
-    await cameraController?.setZoomLevel(selectedCameraDetails.scaleFactor);
     await cameraController
         ?.lockCaptureOrientation(DeviceOrientation.portraitUp);
     await cameraController?.setFlashMode(

lib/src/views/camera/share_image_editor.view.dart

@@ -5,7 +5,6 @@ import 'dart:collection';
 
 import 'package:drift/drift.dart' show Value;
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:twonly/globals.dart';
 import 'package:twonly/src/database/daos/contacts.dao.dart';

lib/src/views/chats/media_viewer.view.dart

@@ -92,8 +92,9 @@ class _MediaViewerViewState extends State<MediaViewerView> {
     _noScreenshot.screenshotOn();
     _subscription.cancel();
     downloadStateListener?.cancel();
-    videoController?.dispose();
+    final tmp = videoController;
     videoController = null;
+    tmp?.dispose();
     super.dispose();
   }
 

lib/src/views/user_study/user_study_questionnaire.view.dart

@@ -1,5 +1,6 @@
 // ignore_for_file: avoid_dynamic_calls
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:twonly/src/utils/keyvalue.dart';
 import 'package:twonly/src/utils/misc.dart';
@@ -30,6 +31,7 @@ class _UserStudyQuestionnaireState extends State<UserStudyQuestionnaire> {
     'comp_knowledge': null,
     'security_knowledge': null,
     'messengers': [],
+    'is_release_mode': kReleaseMode,
   };
 
   final List<String> _messengerOptions = [