使用provider获取数据，Android底部导航栏透明

lib/core/utils.dart

@@ -1,6 +1,8 @@
 import 'dart:async';
+import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:toolbox/core/persistant_store.dart';
 import 'package:toolbox/view/widget/card_dialog.dart';
 import 'package:url_launcher/url_launcher.dart';
@@ -67,3 +69,16 @@ Widget buildSwitch(BuildContext context, StoreProperty<bool> prop,
     },
   );
 }
+
+void setTransparentNavigationBar(BuildContext context) {
+  if (Platform.isAndroid) {
+    SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
+    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
+      statusBarColor: Colors.transparent,
+      systemNavigationBarColor: Colors.transparent,
+      systemNavigationBarContrastEnforced: true,
+      systemNavigationBarIconBrightness:
+          isDarkMode(context) ? Brightness.light : Brightness.dark,
+    ));
+  }
+}

lib/data/provider/server.dart

@@ -1,20 +1,67 @@
+import 'dart:async';
+
+import 'package:ssh2/ssh2.dart';
+import 'package:toolbox/core/extension/stringx.dart';
 import 'package:toolbox/core/provider_base.dart';
+import 'package:toolbox/data/model/disk_info.dart';
 import 'package:toolbox/data/model/server_private_info.dart';
+import 'package:toolbox/data/model/server_status.dart';
+import 'package:toolbox/data/model/tcp_status.dart';
 import 'package:toolbox/data/store/server.dart';
 import 'package:toolbox/locator.dart';
 
 class ServerProvider extends BusyProvider {
   late List<ServerPrivateInfo> _servers;
+  late List<ServerStatus> _serversStatus;
+  late List<SSHClient> _clients;
 
   List<ServerPrivateInfo> get servers => _servers;
+  List<ServerStatus> get serversStatus => _serversStatus;
 
-  Future<void> loadData() async {
+  ServerStatus get emptyStatus => ServerStatus(
+      cpuPercent: 0,
+      memList: [100, 0],
+      disk: [
+        DiskInfo(
+            mountLocation: '',
+            mountPath: '',
+            used: '',
+            size: '',
+            avail: '',
+            usedPercent: 0)
+      ],
+      sysVer: '',
+      uptime: '',
+      tcp: TcpStatus(maxConn: 0, active: 0, passive: 0, fail: 0));
+
+  Future<void> loadLocalData() async {
     setBusyState(true);
     _servers = locator<ServerStore>().fetch();
+    _serversStatus = List.generate(_servers.length, (_) => emptyStatus);
+    _clients = List.generate(
+        _servers.length,
+        (idx) => SSHClient(
+              host: _servers[idx].ip!,
+              port: _servers[idx].port!,
+              username: _servers[idx].user!,
+              passwordOrKey: _servers[idx].authorization,
+            ));
     setBusyState(false);
     notifyListeners();
   }
 
+  Future<void> refreshData() async {
+    _serversStatus = await Future.wait(
+        _servers.map((s) => _getData(s, _servers.indexOf(s))));
+    notifyListeners();
+  }
+
+  Future<void> startAutoRefresh() async {
+    Timer.periodic(const Duration(seconds: 3), (_) async {
+      await refreshData();
+    });
+  }
+
   void addServer(ServerPrivateInfo info) {
     _servers.add(info);
     locator<ServerStore>().put(info);
@@ -26,4 +73,81 @@ class ServerProvider extends BusyProvider {
     locator<ServerStore>().delete(info);
     notifyListeners();
   }
+
+  Future<ServerStatus> _getData(ServerPrivateInfo info, int idx) async {
+    final client = _clients[idx];
+    if (!(await client.isConnected())) {
+      await client.connect();
+    }
+    final cpu = await client.execute(
+            "top -bn1 | grep load | awk '{printf \"%.2f\", \$(NF-2)}'") ??
+        '0';
+    final mem = await client.execute('free -m') ?? '';
+    final sysVer = await client.execute('cat /etc/issue.net') ?? 'Unkown';
+    final upTime = await client.execute('uptime') ?? 'Failed';
+    final disk = await client.execute('df -h') ?? 'Failed';
+    final tcp = await client.execute('cat /proc/net/snmp') ?? 'Failed';
+
+    return ServerStatus(
+        cpuPercent: double.parse(cpu.trim()),
+        memList: _getMem(mem),
+        sysVer: sysVer.trim(),
+        disk: _getDisk(disk),
+        uptime: _getUpTime(upTime),
+        tcp: _getTcp(tcp));
+  }
+
+  String _getUpTime(String raw) {
+    return raw.split('up ')[1].split(', ')[0];
+  }
+
+  TcpStatus _getTcp(String raw) {
+    final lines = raw.split('\n');
+    int idx = 0;
+    for (var item in lines) {
+      if (item.contains('Tcp:')) {
+        idx++;
+      }
+      if (idx == 2) {
+        final vals = item.split(RegExp(r'\s{1,}'));
+        return TcpStatus(
+            maxConn: vals[5].i,
+            active: vals[6].i,
+            passive: vals[7].i,
+            fail: vals[8].i);
+      }
+    }
+    return TcpStatus(maxConn: 0, active: 0, passive: 0, fail: 0);
+  }
+
+  List<DiskInfo> _getDisk(String disk) {
+    final list = <DiskInfo>[];
+    final items = disk.split('\n');
+    for (var item in items) {
+      if (items.indexOf(item) == 0 || item.isEmpty) {
+        continue;
+      }
+      final vals = item.split(RegExp(r'\s{1,}'));
+      list.add(DiskInfo(
+          mountPath: vals[1],
+          mountLocation: vals[5],
+          usedPercent: double.parse(vals[4].replaceFirst('%', '')),
+          used: vals[2],
+          size: vals[1],
+          avail: vals[3]));
+    }
+    return list;
+  }
+
+  List<int> _getMem(String mem) {
+    for (var item in mem.split('\n')) {
+      if (item.contains('Mem:')) {
+        return RegExp(r'[1-9][0-9]*')
+            .allMatches(item)
+            .map((e) => int.parse(item.substring(e.start, e.end)))
+            .toList();
+      }
+    }
+    return [];
+  }
 }

lib/main.dart

@@ -13,7 +13,7 @@ import 'package:toolbox/locator.dart';
 Future<void> initApp() async {
   await Hive.initFlutter();
   await setupLocator();
-  locator<ServerProvider>().loadData();
+  locator<ServerProvider>().loadLocalData();
 }
 
 void runInZone(dynamic Function() body) {

lib/view/page/home.dart

@@ -2,6 +2,7 @@ import 'package:after_layout/after_layout.dart';
 import 'package:flutter/material.dart';
 import 'package:get_it/get_it.dart';
 import 'package:toolbox/core/route.dart';
+import 'package:toolbox/core/utils.dart';
 import 'package:toolbox/data/provider/server.dart';
 import 'package:toolbox/data/res/build_data.dart';
 import 'package:toolbox/locator.dart';
@@ -33,6 +34,7 @@ class _MyHomePageState extends State<MyHomePage>
 
   @override
   Widget build(BuildContext context) {
+    setTransparentNavigationBar(context);
     super.build(context);
     return Scaffold(
       appBar: AppBar(
@@ -103,6 +105,6 @@ class _MyHomePageState extends State<MyHomePage>
   @override
   Future<void> afterFirstLayout(BuildContext context) async {
     await GetIt.I.allReady();
-    await locator<ServerProvider>().loadData();
+    await locator<ServerProvider>().loadLocalData();
   }
 }

lib/view/page/server.dart

@@ -5,13 +5,9 @@ import 'package:flutter/widgets.dart';
 import 'package:flutter_staggered_animations/flutter_staggered_animations.dart';
 import 'package:get_it/get_it.dart';
 import 'package:provider/provider.dart';
-import 'package:ssh2/ssh2.dart';
-import 'package:toolbox/core/extension/stringx.dart';
 import 'package:toolbox/core/utils.dart';
-import 'package:toolbox/data/model/disk_info.dart';
 import 'package:toolbox/data/model/server_private_info.dart';
 import 'package:toolbox/data/model/server_status.dart';
-import 'package:toolbox/data/model/tcp_status.dart';
 import 'package:toolbox/data/provider/server.dart';
 import 'package:toolbox/locator.dart';
 import 'package:toolbox/view/widget/circle_pie.dart';
@@ -76,8 +72,8 @@ class _ServerPageState extends State<ServerPage>
               ),
               children: [
                 const SizedBox(height: 13),
-                ...pro.servers
+                ...pro.servers.map((e) => _buildEachServerCard(
-                    .map((e) => _buildEachServerCard(e, pro.servers.indexOf(e)))
+                    pro.serversStatus[pro.servers.indexOf(e)], e))
               ],
             ));
           })),
@@ -182,159 +178,29 @@ class _ServerPageState extends State<ServerPage>
     );
   }
 
-  Future<ServerStatus>? _getData(ServerPrivateInfo info) async {
+  Widget _buildEachServerCard(ServerStatus ss, ServerPrivateInfo spi) {
-    final client = SSHClient(
+    return GestureDetector(
-      host: info.ip!,
+      child: _buildEachCardContent(ss, spi),
-      port: info.port!,
+      onLongPress: () =>
-      username: info.user!,
+          showRoundDialog(context, '是否删除', const Text('删除后无法恢复'), [
-      passwordOrKey: info.authorization,
+        TextButton(
-    );
+            onPressed: () => Navigator.of(context).pop(),
-
+            child: const Text('否')),
-    await client.connect();
+        TextButton(
-    final cpu = await client.execute(
+            onPressed: () {
-            "top -bn1 | grep load | awk '{printf \"%.2f\", \$(NF-2)}'") ??
+              serverProvider.delServer(spi);
-        '0';
+              Navigator.of(context).pop();
-    final mem = await client.execute('free -m') ?? '';
+            },
-    final sysVer = await client.execute('cat /etc/issue.net') ?? 'Unkown';
+            child: const Text('是'))
-    final upTime = await client.execute('uptime') ?? 'Failed';
+      ]),
-    final disk = await client.execute('df -h') ?? 'Failed';
-    final tcp = await client.execute('cat /proc/net/snmp') ?? 'Failed';
-
-    return ServerStatus(
-        cpuPercent: double.parse(cpu.trim()),
-        memList: _getMem(mem),
-        sysVer: sysVer.trim(),
-        disk: _getDisk(disk),
-        uptime: _getUpTime(upTime),
-        tcp: _getTcp(tcp));
-  }
-
-  String _getUpTime(String raw) {
-    return raw.split('up ')[1].split(', ')[0];
-  }
-
-  TcpStatus _getTcp(String raw) {
-    final lines = raw.split('\n');
-    int idx = 0;
-    for (var item in lines) {
-      if (item.contains('Tcp:')) {
-        idx++;
-      }
-      if (idx == 2) {
-        final vals = item.split(RegExp(r'\s{1,}'));
-        return TcpStatus(
-            maxConn: vals[5].i,
-            active: vals[6].i,
-            passive: vals[7].i,
-            fail: vals[8].i);
-      }
-    }
-    return TcpStatus(maxConn: 0, active: 0, passive: 0, fail: 0);
-  }
-
-  List<DiskInfo> _getDisk(String disk) {
-    final list = <DiskInfo>[];
-    final items = disk.split('\n');
-    for (var item in items) {
-      if (items.indexOf(item) == 0 || item.isEmpty) {
-        continue;
-      }
-      final vals = item.split(RegExp(r'\s{1,}'));
-      list.add(DiskInfo(
-          mountPath: vals[1],
-          mountLocation: vals[5],
-          usedPercent: double.parse(vals[4].replaceFirst('%', '')),
-          used: vals[2],
-          size: vals[1],
-          avail: vals[3]));
-    }
-    return list;
-  }
-
-  List<int> _getMem(String mem) {
-    for (var item in mem.split('\n')) {
-      if (item.contains('Mem:')) {
-        return RegExp(r'[1-9][0-9]*')
-            .allMatches(item)
-            .map((e) => int.parse(item.substring(e.start, e.end)))
-            .toList();
-      }
-    }
-    return [];
-  }
-
-  Widget _buildEachServerCard(ServerPrivateInfo e, int index) {
-    return FutureBuilder<ServerStatus>(
-      future: _getData(e),
-      builder: (BuildContext context, AsyncSnapshot<ServerStatus> snapshot) {
-        return GestureDetector(
-          child: _buildEachCardContent(snapshot, e.name ?? '', index),
-          onLongPress: () =>
-              showRoundDialog(context, '是否删除', const Text('删除后无法恢复'), [
-            TextButton(
-                onPressed: () => Navigator.of(context).pop(),
-                child: const Text('否')),
-            TextButton(
-                onPressed: () {
-                  serverProvider.delServer(e);
-                  Navigator.of(context).pop();
-                },
-                child: const Text('是'))
-          ]),
-        );
-      },
     );
   }
 
-  Widget _buildEachCardContent(
+  Widget _buildEachCardContent(ServerStatus ss, ServerPrivateInfo spi) {
-      AsyncSnapshot<ServerStatus> snapshot, String serverName, int index) {
-    Widget child;
-    if (snapshot.connectionState != ConnectionState.done) {
-      if (cachedServerStatus.length > index && cachedServerStatus.elementAt(index) != null) {
-          child = _buildRealServerCard(cachedServerStatus.elementAt(index)!, serverName);
-      } else {
-        child = _buildRealServerCard(
-            ServerStatus(
-                cpuPercent: 0,
-                memList: [100, 0],
-                disk: [
-                  DiskInfo(
-                      mountLocation: '',
-                      mountPath: '',
-                      used: '',
-                      size: '',
-                      avail: '',
-                      usedPercent: 0)
-                ],
-                sysVer: '',
-                uptime: '',
-                tcp: TcpStatus(maxConn: 0, active: 0, passive: 0, fail: 0)),
-            serverName);
-      }
-    } else if (snapshot.hasError) {
-      child = Column(
-        children: [
-          Text(
-            serverName,
-            style: const TextStyle(fontWeight: FontWeight.bold),
-          ),
-          Center(
-            child: Text("Error: ${snapshot.error}"),
-          )
-        ],
-      );
-    } else {
-      if (cachedServerStatus.length <= index) {
-        cachedServerStatus.add(snapshot.data!);
-      } else {
-        cachedServerStatus[index] = snapshot.data!;
-      }
-      child = _buildRealServerCard(snapshot.data!, serverName);
-    }
     return Card(
       child: Padding(
         padding: const EdgeInsets.all(13),
-        child: child,
+        child: _buildRealServerCard(ss, spi.name ?? ''),
       ),
     );
   }
@@ -461,6 +327,8 @@ class _ServerPageState extends State<ServerPage>
   @override
   Future<void> afterFirstLayout(BuildContext context) async {
     await GetIt.I.allReady();
-    await locator<ServerProvider>().loadData();
+    await serverProvider.loadLocalData();
+    await serverProvider.refreshData();
+    await serverProvider.startAutoRefresh();
   }
 }