Add Ping. Support launch page setting.

lib/data/res/build_data.dart

@@ -2,9 +2,9 @@
 
 class BuildData {
   static const String name = "ServerBox";
-  static const int build = 83;
+  static const int build = 84;
   static const String engine =
       "Flutter 2.8.1 • channel stable • https://github.com/flutter/flutter.git\nFramework • revision 77d935af4d (4 weeks ago) • 2021-12-16 08:37:33 -0800\nEngine • revision 890a5fca2e\nTools • Dart 2.15.1\n";
-  static const String buildAt = "2022-01-16 15:14:10.759902";
-  static const int modifications = 6;
+  static const String buildAt = "2022-01-16 15:21:07.640484";
+  static const int modifications = 3;
 }

lib/data/res/tab.dart

@@ -0,0 +1 @@
+final List<String> tabs = ['Servers', 'En/Decode', 'Ping'];

lib/data/store/setting.dart

@@ -6,4 +6,6 @@ class SettingStore extends PersistentStore {
       property('primaryColor', defaultValue: Colors.deepPurpleAccent.value);
   StoreProperty<int> get serverStatusUpdateInterval =>
       property('serverStatusUpdateInterval', defaultValue: 3);
+  StoreProperty<int> get launchPage =>
+      property('launchPage', defaultValue: 0);
 }

lib/view/page/home.dart

@@ -9,10 +9,13 @@ import 'package:toolbox/core/utils.dart';
 import 'package:toolbox/data/provider/server.dart';
 import 'package:toolbox/data/res/build_data.dart';
 import 'package:toolbox/data/res/icon/common.dart';
+import 'package:toolbox/data/res/tab.dart';
 import 'package:toolbox/data/res/url.dart';
+import 'package:toolbox/data/store/setting.dart';
 import 'package:toolbox/locator.dart';
 import 'package:toolbox/view/page/convert.dart';
 import 'package:toolbox/view/page/debug.dart';
+import 'package:toolbox/view/page/ping.dart';
 import 'package:toolbox/view/page/private_key/list.dart';
 import 'package:toolbox/view/page/server/tab.dart';
 import 'package:toolbox/view/page/setting.dart';
@@ -33,7 +36,6 @@ class _MyHomePageState extends State<MyHomePage>
         SingleTickerProviderStateMixin,
         AfterLayoutMixin,
         WidgetsBindingObserver {
-  final List<String> _tabs = ['Servers', 'En/Decode'];
   late final TabController _tabController;
   late final ServerProvider _serverProvider;
 
@@ -42,7 +44,7 @@ class _MyHomePageState extends State<MyHomePage>
     super.initState();
     _serverProvider = locator<ServerProvider>();
     WidgetsBinding.instance?.addObserver(this);
-    _tabController = TabController(length: _tabs.length, vsync: this);
+    _tabController = TabController(initialIndex: locator<SettingStore>().launchPage.fetch()!, length: tabs.length, vsync: this);
   }
 
   @override
@@ -75,15 +77,14 @@ class _MyHomePageState extends State<MyHomePage>
         ),
         bottom: TabBar(
           indicatorColor: widget.primaryColor,
-          tabs: _tabs.map((e) => Tab(text: e)).toList(),
+          tabs: tabs.map((e) => Tab(text: e)).toList(),
           controller: _tabController,
         ),
       ),
       drawer: _buildDrawer(),
-      body: TabBarView(controller: _tabController, children: const [
-        ServerPage(),
-        ConvertPage(),
-      ]),
+      body: TabBarView(
+          controller: _tabController,
+          children: const [ServerPage(), ConvertPage(), PingPage()]),
     );
   }
 

lib/view/page/ping.dart

@@ -0,0 +1,145 @@
+import 'dart:io';
+
+import 'package:dart_ping/dart_ping.dart';
+import 'package:dart_ping_ios/dart_ping_ios.dart';
+import 'package:flutter/material.dart';
+import 'package:toolbox/core/utils.dart';
+import 'package:toolbox/data/res/color.dart';
+
+class PingPage extends StatefulWidget {
+  const PingPage({Key? key}) : super(key: key);
+
+  @override
+  _PingPageState createState() => _PingPageState();
+}
+
+class _PingPageState extends State<PingPage>
+    with AutomaticKeepAliveClientMixin {
+  late TextEditingController _textEditingController;
+  late TextEditingController _textEditingControllerResult;
+  late MediaQueryData _media;
+  late String _result;
+  late Ping _ping;
+
+  @override
+  void initState() {
+    super.initState();
+    _textEditingController = TextEditingController(text: '');
+    _textEditingControllerResult = TextEditingController(text: '');
+    if (Platform.isIOS) {
+      DartPingIOS.register();
+    }
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    _media = MediaQuery.of(context);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    super.build(context);
+    return Scaffold(
+      body: GestureDetector(
+        child: SingleChildScrollView(
+            padding: const EdgeInsets.symmetric(horizontal: 7),
+            child: Column(children: [
+              const SizedBox(height: 13),
+              _buildInputTop(),
+              _buildControl(),
+              _buildResult(),
+            ])),
+        onTap: () => FocusScope.of(context).requestFocus(FocusNode()),
+      ),
+    );
+  }
+
+  void doPing() {
+    _result = '';
+    _ping = Ping(_textEditingController.text.trim());
+    _ping.stream.listen((event) {
+      final resp = event.response.toString();
+      if (resp == 'null') return;
+      _result += '$resp\n';
+      _textEditingControllerResult.text = _result;
+    });
+  }
+
+  Widget _buildControl() {
+    return SizedBox(
+      height: 57,
+      child: Card(
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.spaceAround,
+          children: [
+            TextButton(
+              style: ButtonStyle(
+                  foregroundColor: MaterialStateProperty.all(primaryColor)),
+              child: Row(
+                children: const [
+                  Icon(Icons.stop),
+                  SizedBox(
+                    width: 7,
+                  ),
+                  Text('Stop')
+                ],
+              ),
+              onPressed: () {
+                _ping.stop();
+              },
+            ),
+            TextButton(
+              style: ButtonStyle(
+                  foregroundColor: MaterialStateProperty.all(primaryColor)),
+              child: Row(
+                children: const [
+                  Icon(Icons.play_arrow),
+                  SizedBox(
+                    width: 7,
+                  ),
+                  Text('Start')
+                ],
+              ),
+              onPressed: () {
+                try {
+                  doPing();
+                } catch (e) {
+                  showSnackBar(context, Text('Error: \n$e'));
+                }
+              },
+            )
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildInputTop() {
+    return _buildInput(_textEditingController, maxLines: 1, hint: 'Type here.');
+  }
+
+  Widget _buildResult() {
+    return SizedBox(
+      height: _media.size.height * 0.47,
+      child: _buildInput(_textEditingControllerResult, hint: 'Result here.'),
+    );
+  }
+
+  Widget _buildInput(TextEditingController controller, {int maxLines = 20, String? hint}) {
+    return Card(
+      child: TextField(
+        maxLines: maxLines,
+        decoration: InputDecoration(
+            fillColor: Theme.of(context).cardColor,
+            hintText: hint,
+            filled: true,
+            border: InputBorder.none),
+        controller: controller,
+      ),
+    );
+  }
+
+  @override
+  bool get wantKeepAlive => true;
+}

lib/view/page/setting.dart

@@ -6,6 +6,7 @@ import 'package:toolbox/data/provider/app.dart';
 import 'package:toolbox/data/provider/server.dart';
 import 'package:toolbox/data/res/build_data.dart';
 import 'package:toolbox/data/res/color.dart';
+import 'package:toolbox/data/res/tab.dart';
 import 'package:toolbox/data/store/setting.dart';
 import 'package:toolbox/locator.dart';
 import 'package:toolbox/view/widget/round_rect_card.dart';
@@ -20,15 +21,20 @@ class SettingPage extends StatefulWidget {
 class _SettingPageState extends State<SettingPage> {
   late SettingStore _store;
   late int _selectedColorValue;
+  late int _launchPageIdx;
   double _intervalValue = 0;
   late Color priColor;
   static const textStyle = TextStyle(fontSize: 14);
   late final ServerProvider _serverProvider;
+  late MediaQueryData _media;
+  late ThemeData _theme;
 
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
     priColor = primaryColor;
+    _media = MediaQuery.of(context);
+    _theme = Theme.of(context);
   }
 
   @override
@@ -36,6 +42,7 @@ class _SettingPageState extends State<SettingPage> {
     super.initState();
     _serverProvider = locator<ServerProvider>();
     _store = locator<SettingStore>();
+    _launchPageIdx = _store.launchPage.fetch()!;
     _intervalValue = _store.serverStatusUpdateInterval.fetch()!.toDouble();
   }
 
@@ -50,7 +57,8 @@ class _SettingPageState extends State<SettingPage> {
         children: [
           _buildAppColorPreview(),
           _buildUpdateInterval(),
-          _buildCheckUpdate()
+          _buildCheckUpdate(),
+          _buildLaunchPage()
         ].map((e) => RoundRectCard(e)).toList(),
       ),
     );
@@ -171,4 +179,47 @@ class _SettingPageState extends State<SettingPage> {
       }),
     );
   }
+
+  Widget _buildLaunchPage() {
+    return ExpansionTile(
+      tilePadding: EdgeInsets.zero,
+      childrenPadding: EdgeInsets.zero,
+      title: const Text(
+        'Launch page',
+        style: textStyle,
+      ),
+      trailing: ConstrainedBox(
+        constraints: BoxConstraints(maxWidth: _media.size.width * 0.35),
+        child: Text(
+          tabs[_launchPageIdx],
+          textScaleFactor: 1.0,
+          textAlign: TextAlign.right,
+        ),
+      ),
+      children: tabs
+          .map((e) => ListTile(
+                contentPadding: EdgeInsets.zero,
+                title: Text(
+                  e,
+                  style: TextStyle(
+                      color: _theme.textTheme.bodyText2!.color!.withAlpha(177)),
+                ),
+                trailing: _buildRadio(tabs.indexOf(e)),
+              ))
+          .toList(),
+    );
+  }
+
+  Radio _buildRadio(int index) {
+    return Radio<int>(
+      value: index,
+      groupValue: _launchPageIdx,
+      onChanged: (int? value) {
+        setState(() {
+          _launchPageIdx = value!;
+          _store.launchPage.put(value);
+        });
+      },
+    );
+  }
 }