InfoPage消息接收显示

Class/TcpServer.cs

@@ -1,4 +1,5 @@
-using Microsoft.VisualBasic;
+using CommunityToolkit.Mvvm.Messaging;
+using Microsoft.VisualBasic;
 using SunlightAggregationTerminal.Models;
 using System;
 using System.Collections.Generic;
@@ -122,9 +123,9 @@ namespace SunlightAggregationTerminal.Class
                         if (data.TryGetValue("Info", out val) && val != null)//机台信息接受
                         {
                             DataModel.Info_data = JsonSerializer.Deserialize<List<Dictionary<string, object>>>(val.ToString()!)!;
-
-                            InfoPage.OnInfoPage();
-                        }                            
+                            //发送消息
+                            WeakReferenceMessenger.Default.Send(new object());
+                        }
                         if (data.TryGetValue("Query", out val) && val != null)//查询接受
                         {
                             QueryPage.Query_data(val.ToString()!);

InfoPage.xaml

@@ -2,7 +2,7 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="SunlightAggregationTerminal.InfoPage"                        
-             xmlns:converters="clr-namespace:SunlightAggregationTerminal.Converters"
+             xmlns:converters="clr-namespace:SunlightAggregationTerminal.Converters"  
              Title="设备信息">
     <ContentPage.Resources>
         <ResourceDictionary>
@@ -12,8 +12,7 @@
     </ContentPage.Resources>
     <ScrollView>
         <VerticalStackLayout Padding="20" Spacing="20">
-            <CollectionView x:Name="CardCollectionView"              
-                 ItemsSource="{Binding InfoItems}"
+            <CollectionView x:Name="CardCollectionView"                             
                  RemainingItemsThreshold="5">
                 <!-- 保持滚动条 -->
                 <CollectionView.ItemTemplate>

InfoPage.xaml.cs

@@ -1,3 +1,4 @@
+using CommunityToolkit.Mvvm.Messaging;
 using Microsoft.Maui.Controls;
 using SunlightAggregationTerminal.Class;
 using SunlightAggregationTerminal.Models;
@@ -6,21 +7,26 @@ using System.Collections.ObjectModel;
 namespace SunlightAggregationTerminal;
 
 public partial class InfoPage : ContentPage
-{   
+{
     public static ObservableCollection<InfoItem> InfoItems { get; set; } = new();
     public static string? _Name, _State, _MachineName, _Machine, _Information, _Model,
         _Type, _ModelA, _ModelB, _ModelC, _ModelD, _ModelE, _ModelF;
 
     public InfoPage()
-	{
-        InitializeComponent();       
-    }
-
-    public static void OnInfoPage()//打开时加载信息
     {
-        MainThread.BeginInvokeOnMainThread(() =>
+        InitializeComponent();
+
+        CardCollectionView.ItemsSource = InfoItems;
+        // 注册订阅一个不携带数据的消息（使用 object 作为泛型）
+        WeakReferenceMessenger.Default.Register<object>(this, (r, m) =>
         {
-            InfoItems.Clear();
+            // 收到信号，直接触发函数
+            HandleUITrigger();
+        });
+    }
+    private void HandleUITrigger()
+    {
+        InfoItems.Clear();
         foreach (Dictionary<string, object> List in DataModel.Info_data)
         {
             if (List.TryGetValue("Name", out var val) && val != null) _Name = val.ToString()!;
@@ -56,10 +62,30 @@ public partial class InfoPage : ContentPage
 
         }
 
+        InfoItems.Add(new InfoItem
+        {
+            Name = _Name,
+            State = _State,
+            MachineName = _MachineName,
+            Machine = _Machine,
+            Information = _Information,
+            Type = _Type,
+            Model = _Model,
+            ModelA = _ModelA,
+            ModelB = _ModelB,
+            ModelC = _ModelC,
+            ModelD = _ModelD,
+            ModelE = _ModelE,
+            ModelF = _ModelF
         });
 
     }
 
+    ~InfoPage()//关闭时注销消息
+    {
+        WeakReferenceMessenger.Default.UnregisterAll(this);
+    }
+   
     private void TapGestureRecognizer_Tapped(object sender, TappedEventArgs e)
     {
         // 将 sender 强制转换为  BindingContext 定义在 BindableObject 

Models/DataModel.cs

@@ -36,7 +36,7 @@ namespace SunlightAggregationTerminal.Models
         [ObservableProperty]
         public partial bool MessageNotificationMode { get; set; }
 
-
+        public class RefreshUISignal { }
         public static List<Dictionary<string, object>> Info_data = new List<Dictionary<string, object>>();
     }
 }

Models/DataSource.cs

@@ -25,11 +25,9 @@ namespace SunlightAggregationTerminal.Models
         public DateTime Time { get; set; }
         public MsgType Type { get; set; }
     }
-    public partial class InfoItem : ObservableObject
+    public partial class InfoItem 
     {
-        [ObservableProperty]
-        public string _name;
-       // public string? Name { get; set; }
+        public string? Name { get; set; }
         public string? State { get; set; }
         public string? MachineName { get; set; }
         public string? Machine { get; set; }

View/LogPage.xaml.cs

@@ -76,6 +76,10 @@ public partial class LogPage : ContentPage
     {
         LoadingIndicator.IsVisible = true;
 
+        App.GlobalData.ServerID = SERVERIP.Text;
+        App.GlobalData.User = UsernameEntry.Text;    
+        App.GlobalData.UserPassword = PasswordEntry.Text;
+
         if (await AppModels.LogIn())
         {
             App.GlobalData.ServerID = SERVERIP.Text;