{"id":806,"date":"2024-03-08T11:20:06","date_gmt":"2024-03-08T02:20:06","guid":{"rendered":"https:\/\/dnetcore.ohwaki.jp\/wordpress\/?p=806"},"modified":"2024-11-01T10:15:17","modified_gmt":"2024-11-01T01:15:17","slug":"maui-blazor","status":"publish","type":"post","link":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=806","title":{"rendered":"MAUI Blazor"},"content":{"rendered":"\n

\u4ee5\u524d\u3001Blazor Hybrid\u306e\u4f8b\u3067\u3001Windows Forms\u3068Blazor\u3092\u8a66\u3057\u3066\u307f\u305f\u304c\u3001\u4eca\u56de\u306fMAUI\u3067\u8a66\u3057\u3066\u307f\u305f\u3002<\/p>\n\n\n\n

MAUI\u306e\u5834\u5408\u3082\u3001Windows Forms\u3068\u540c\u69d8\u306bMAUI\uff5eBlazor\u9593\u306e\u9023\u643a\u304c\u53ef\u80fd\u3002<\/p>\n\n\n\n

\u5171\u6709\u3059\u308b\u3001Singleton\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u3067\u4f5c\u6210\u3057\u3001MauiProgram.cs\u5185\u3067\u30b5\u30fc\u30d3\u30b9\u767b\u9332\u3059\u308b\u3053\u3068\u3067\u3001\u76f8\u4e92\u3067\u540c\u3058\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u5171\u6709\u3067\u304d\u308b\u3002<\/p>\n\n\n\n

namespace MAUIBlApp;\n\npublic interface IHostIF {\n    \/\/\/ <summary>\n    \/\/\/ \u5171\u6709\u30c7\u30fc\u30bf\n    \/\/\/ <\/summary>\n    \/\/\/ <value>\u30ab\u30a6\u30f3\u30c8\u5024<\/value>\n    public int Count { get; set; }\n    \/\/\/ <summary>\n    \/\/\/ \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\n    \/\/\/ <\/summary>\n    public event EventHandler ComponentEvent;\n    \/\/\/ <summary>\n    \/\/\/ \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u304b\u3089\u30a4\u30d9\u30f3\u30c8\u767a\u751f\n    \/\/\/ <\/summary>\n    \/\/\/ <param name="sender"><\/param>\n    \/\/\/ <param name="e"><\/param>\n    public void FireClientEvent(object sender, EventArgs e);\n    \/\/\/ <summary>\n    \/\/\/ \u30db\u30b9\u30c8\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\n    \/\/\/ <\/summary> <summary>\n    \/\/\/ \n    \/\/\/ <\/summary>\n    public event EventHandler HostEvent;\n    \/\/\n    \/\/\/ <summary>\n    \/\/\/ \u30db\u30b9\u30c8\u5074\u304b\u3089\u30a4\u30d9\u30f3\u30c8\u767a\u751f\n    \/\/\/ <\/summary>\n    \/\/\/ <value><\/value>\n    public void FireHostEvent(object sender, EventArgs e);\n}\n\/\/\/ <summary>\n\/\/\/ IHostIF\u306e\u5b9f\u88c5\n\/\/\/ <\/summary>\npublic class HostInterface : IHostIF {\n    public int Count { get; set; } = 0;\n    public event EventHandler ComponentEvent = null!;\n    public void FireClientEvent(object sender, EventArgs e) {\n        ComponentEvent?.Invoke(sender,e);\n    }\n    public event EventHandler HostEvent = null!;\n    public void FireHostEvent(object sender, EventArgs e) {\n        HostEvent?.Invoke(sender,e);\n    }\n}<\/code><\/pre><\/div>\n\n\n\n
using Microsoft.Extensions.Logging;\n\nnamespace MAUIBlApp;\n\npublic static class MauiProgram\n{\n\tpublic static MauiApp CreateMauiApp()\n\t{\n\t\tvar builder = MauiApp.CreateBuilder();\n\t\tbuilder\n\t\t\t.UseMauiApp<App>()\n\t\t\t.ConfigureFonts(fonts =>\n\t\t\t{\n\t\t\t\tfonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");\n\t\t\t});\n\n\t\tHostInterface hst = new HostInterface();\n\t\tbuilder.Services.AddSingleton<IHostIF>(hst);\n\t\tbuilder.Services.AddMauiBlazorWebView();\n\n\u30fb\u30fb\u30fb<\/code><\/pre><\/div>\n\n\n\n
namespace MAUIBlApp;\n\npublic partial class App : Application\n{\n\tpublic App(IHostIF hif)\n\t{\n\t\tInitializeComponent();\n\t\t\/\/ MainPage\u306e\u30ed\u30fc\u30c9(IHostIF(Singleton)\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u6e21\u3059)\n\t\tMainPage = new MainPage(hif);\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n
namespace MAUIBlApp;\n\npublic partial class MainPage : ContentPage\n{\n\tprivate readonly IHostIF _hostif;\n\t\/\/\/ <summary>\n\t\/\/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf(IHostIF\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97)\n\t\/\/\/ <\/summary>\n\t\/\/\/ <param name="hostif"><\/param>\n\tpublic MainPage(IHostIF hostif)\n\t{\n\t\tInitializeComponent();\n\t\t_hostif = hostif;\n\t\t\/\/ Client(Blazor Component)\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u8a2d\u5b9a\n\t\t_hostif.ComponentEvent += OnClientEvent;\n\t\tlblNumber.Text = _hostif.Count.ToString();\n\t}\n\t\/\/\/ <summary>\n\t\/\/\/ \u30dc\u30bf\u30f3\u30af\u30ea\u30c3\u30af\u6642\u51e6\u7406\n\t\/\/\/ <\/summary>\n\t\/\/\/ <param name="sender"><\/param>\n\t\/\/\/ <param name="e"><\/param>\n\tpublic void OnBtnClick(object sender, EventArgs e) {\n\t\t\/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30ab\u30a6\u30f3\u30c8\u30a2\u30c3\u30d7\n\t\t_hostif.Count++;\n\t\tlblNumber.Text = _hostif.Count.ToString();\n\t\t\/\/ Client(Blazor Component)\u3078\u30a4\u30d9\u30f3\u30c8\u901a\u77e5\n\t\t_hostif.FireHostEvent(sender,e);\n\t}\n\t\/\/\/ <summary>\n\t\/\/\/ Client(Blazor Component)\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\n\t\/\/\/ <\/summary>\n\t\/\/\/ <param name="sender"><\/param>\n\t\/\/\/ <param name="e"><\/param>\n\tpublic void OnClientEvent(object? sender, EventArgs e) {\n\t\tlblNumber.Text = _hostif.Count.ToString();\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n
@page "\/"\n\n@inject IHostIF HostInterface\n\n<h2>Counter<\/h2>\n\n<p role="status">Current count:\n@if (Numbers != null && Numbers.Count != 0) {\n    foreach(var v in Numbers) {\n        string imgname = $"\/images\/number_{v}.png";\n        <img src="@imgname" style="width:42px;height:49px"\/>\n    }\n}\n<\/p>\n<br\/>\n\n<button class="btn btn-primary" @onclick="IncrementCount">Click me<\/button>\n\n@code {\n\n    \/\/\/ <summary>\n    \/\/\/ \u30ab\u30a6\u30f3\u30bf\u306e\u30a4\u30e1\u30fc\u30b8Index\n    \/\/\/ <\/summary>\n    \/\/\/ <returns><\/returns>\n    protected List<int> Numbers = new () {0};\n\n    \/\/\/ <summary>\n    \/\/\/ Initialize\n    \/\/\/ <\/summary>\n    protected override void OnInitialized() {\n        \/\/ Host\u30a4\u30d9\u30f3\u30c8\u306e\u30cf\u30f3\u30c9\u30e9\u8a2d\u5b9a\n        HostInterface.HostEvent += async (_,_) => await InvokeAsync(()=>{CreateNumberImages();StateHasChanged();});\n    }\n    \/\/\/ <summary>\n    \/\/\/ \u30dc\u30bf\u30f3\u30a4\u30d9\u30f3\u30c8\n    \/\/\/ <\/summary>\n    private void IncrementCount()\n    {\n        \/\/ Interface\u306e\u30ab\u30a6\u30f3\u30c8\u3092\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\n        HostInterface.Count++;\n        \/\/ \u30ab\u30a6\u30f3\u30bf\u21d2\u30a4\u30e1\u30fc\u30b8\u756a\u53f7\u306e\u4f5c\u6210\n        CreateNumberImages();\n        \/\/ \u30db\u30b9\u30c8\u306b\u901a\u77e5\n        HostInterface.FireClientEvent(this,new EventArgs());\n    }\n    \/\/\/ <summary>\n    \/\/\/ \u30a4\u30e1\u30fc\u30b8\u756a\u53f7\u306e\u751f\u6210\n    \/\/\/ <\/summary>\n    private void CreateNumberImages() {\n        Numbers = new();\n        string s = HostInterface.Count.ToString();\n        for(int i=0;i < s.Length; i++) {\n            Numbers.Add(Convert.ToInt32(s[i].ToString()));\n        }\n    }\n}<\/code><\/pre><\/div>\n\n\n\n
\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001MAUI\u5074\u304b\u3089\u3067\u3082Blazor\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5074\u304b\u3089\u3067\u3082\u540c\u3058\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b\u3002<\/p>\n\n\n\n