input base url

lib/ui/settings/input_base_url.dart

+import 'package:flutter/material.dart';
+import 'package:second_display/helper/config.dart';
+import 'package:second_display/main.dart';
+import 'package:second_display/ui/error.dart';
+
+class InputBaseUrl extends StatefulWidget {
+  const InputBaseUrl({Key? key}) : super(key: key);
+
+  @override
+  State<InputBaseUrl> createState() => _InputBaseUrlState();
+}
+
+class _InputBaseUrlState extends State<InputBaseUrl> {
+  final _baseUrlController = TextEditingController();
+  late String urlBase;
+  @override
+  void initState() {
+    final String? _baseUrls = prefs.getString('base_url');
+    urlBase = _baseUrls ?? urlDefault;
+    _baseUrlController.text = urlBase;
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text("Base Url"),
+        backgroundColor: backgroundAppBar,
+      ),
+      body: SingleChildScrollView(
+        child: Center(
+          child: Container(
+            height: MediaQuery.of(context).size.height * 0.5,
+            width: MediaQuery.of(context).size.width * 0.5,
+            // color: Colors.red,
+            child: Column(
+              children: [
+                TextFormField(
+                  controller: _baseUrlController,
+                  style: const TextStyle(color: Colors.black),
+                  decoration: InputDecoration(
+                    // border: InputBorder.none,
+                    prefixIcon: const Icon(
+                      Icons.attach_money_rounded,
+                      color: Colors.white30,
+                    ),
+                    hintText: urlBase,
+                    hintStyle: TextStyle(color: Colors.black.withOpacity(0.8)),
+                  ),
+                ),
+                const SizedBox(
+                  height: 30,
+                ),
+                ElevatedButton.icon(
+                    onPressed: () async {
+                      await prefs.setString(
+                          'base_url', _baseUrlController.text);
+                      Navigator.pushReplacement(context,
+                          MaterialPageRoute(builder: (context) => ErrorPage()));
+                    },
+                    icon: const Icon(Icons.check),
+                    label: const Text("Input base Url"))
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}