outsourced all methods and dialogs as far as possible (I think)

lib/screens/excursion/widgets/hinweise.dart

@@ -0,0 +1,113 @@
+import 'package:fforte/enums/databases.dart';
+import 'package:fforte/screens/sharedWidgets/var_text_field.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+
+class Hinweise extends StatefulWidget {
+  final TextEditingController hinweise;
+
+  const Hinweise({super.key, required this.hinweise});
+
+  @override
+  State<Hinweise> createState() => _HinweiseState();
+}
+
+class _HinweiseState extends State<Hinweise> {
+  // Vars for Checkboxes
+  bool liegestelleChecked = false;
+  bool kadaverChecked = false;
+  bool sichtungChecked = false;
+  bool heulenChecked = false;
+  bool sonstigesChecked = false;
+
+  // for sonstiges textfield
+  TextEditingController sonstigesController = TextEditingController();
+
+  @override
+  void initState() {
+    super.initState();
+    sonstigesController.addListener(updateController);
+  }
+
+  @override
+  void dispose() {
+    sonstigesController.dispose();
+    super.dispose();
+  }
+
+  void updateController() {
+    Map<String, bool> props = {
+      "liegestelle": liegestelleChecked,
+      "kadaver": kadaverChecked,
+      "sichtung": sichtungChecked,
+      "heulen": heulenChecked,
+      "sonstiges": sonstigesChecked
+    };
+    bool firstRun = true;
+
+    widget.hinweise.text = "";
+
+    for (String key in props.keys) {
+      if (!firstRun) {
+        widget.hinweise.text += ";";
+      }
+      if (key == "sonstiges") {
+        widget.hinweise.text += "$key:${sonstigesController.text}";
+      } else {
+        widget.hinweise.text += "$key:${props[key]}";
+      }
+
+      firstRun = false;
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: [
+        CheckboxListTile(
+            title: Text(AppLocalizations.of(context)!.liegestelle),
+            value: liegestelleChecked,
+            onChanged: (bool? value) {
+              setState(() => liegestelleChecked = value ?? false);
+              updateController();
+            }),
+        CheckboxListTile(
+            title: Text(AppLocalizations.of(context)!.wildtierKadaver),
+            value: kadaverChecked,
+            onChanged: (bool? value) {
+              setState(() => kadaverChecked = value ?? false);
+              updateController();
+            }),
+        CheckboxListTile(
+            title: Text(AppLocalizations.of(context)!.sichtung),
+            value: sichtungChecked,
+            onChanged: (bool? value) {
+              setState(() => sichtungChecked = value ?? false);
+              updateController();
+            }),
+        CheckboxListTile(
+            title: Text(AppLocalizations.of(context)!.heulen),
+            value: heulenChecked,
+            onChanged: (bool? value) {
+              setState(() => heulenChecked = value ?? false);
+              updateController();
+            }),
+        CheckboxListTile(
+            title: Text(AppLocalizations.of(context)!.sonstiges),
+            value: sonstigesChecked,
+            onChanged: (bool? value) {
+              setState(() => sonstigesChecked = value ?? false);
+              updateController();
+            }),
+        if (sonstigesChecked)
+          VarTextField(
+              textController: sonstigesController,
+              localization: AppLocalizations.of(context)!.sonstiges,
+              dbName: "HinweiseSonstiges",
+              required: false,
+              dbDesignation: DatabasesEnum.excursion)
+      ],
+    );
+  }
+}