Init repo

lib/util/option_dialogue.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+
+Future<void> openOptionDialogue<T>(
+  BuildContext context, {
+  required String label,
+  required List<T> items,
+  bool isNullable = false,
+  required Widget Function(T? type) itemBuilder,
+}) {
+  return showDialog(
+    context: context,
+    builder: (context) {
+      return AlertDialog.adaptive(
+        title: Text(label),
+        content: SizedBox(
+          width: MediaQuery.of(context).size.width * 0.65,
+          child: ListView(
+            physics: const AlwaysScrollableScrollPhysics(),
+            shrinkWrap: true,
+            children: [
+              if (isNullable) itemBuilder(null),
+              ...items.map(
+                (e) => itemBuilder(e),
+              )
+            ],
+          ),
+        ),
+      );
+    },
+  );
+}