{"id":10604,"date":"2021-09-03T18:05:14","date_gmt":"2021-09-03T09:05:14","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=10604"},"modified":"2021-09-03T18:13:01","modified_gmt":"2021-09-03T09:13:01","slug":"maui-%e3%81%a7-listview-%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6%e6%92%83%e6%b2%88%e3%81%97%e3%81%a6%e3%81%bf%e3%82%8b%e3%83%86%e3%82%b9%e3%83%88windows%e3%81%ae%e3%81%bb%e3%81%86%e3%81%af%e5%a4%a7","status":"publish","type":"post","link":"https:\/\/www.moonmile.net\/blog\/archives\/10604","title":{"rendered":"MAUI \u3067 ListView \u3092\u4f7f\u3063\u3066\u6483\u6c88\u3057\u3066\u307f\u308b\u30c6\u30b9\u30c8(Windows\u306e\u307b\u3046\u306f\u5927\u4e08\u592b\uff09"},"content":{"rendered":"\n

MAUI \u3092\u59cb\u3081\u308b\u3001\u3068\u3044\u3046\u304b\u8abf\u3079\u308b\u3053\u3068\u306b\u3057\u305f\u306e\u3067\u3001\u306a\u306b\u306f\u3068\u3082\u3042\u308c Web API \u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u306a\u306b\u304b\u30ea\u30b9\u30c8\u8868\u793a\u3092\u3057\u3088\u3046\u3068\u4f5c\u3063\u3066\u307f\u308b\u3002\u3060\u304c\u3001\u4f5c\u3063\u3066\u307f\u308b\u9014\u4e2d\u3067\u3069\u3046\u3082\u52d5\u304b\u306a\u3044\u306e\u3067\u3001\u5099\u5fd8\u9332\u306b\u8a18\u9332\u3057\u3066\u304a\u304f\u3002<\/p>\n\n\n\n

\u5b9f\u306f MAUI \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u81ea\u4f53\u306f\u6975\u3081\u3066\u3059\u304f\u306a\u304f\u3066\u3001.NET Multi-Platform App UI documentation – .NET MAUI | Microsoft Docs<\/a> \u7a0b\u5ea6\u3057\u304b\u306a\u3044\u3002\u306a\u3093\u3068\u3044\u3046\u304b\u3001\u3044\u307e\u306e\u3068\u3053\u308d\u4f55\u3082\u306a\u3044\u72b6\u614b\u306b\u8fd1\u3044\u306e\u3067\u3001\u809d\u5fc3\u306e\u753b\u9762\u3092\u3069\u3046\u4f5c\u3063\u3066\u3044\u304f\u306e\u304b\uff1f\u306b\u95a2\u3057\u3066\u306f\u5168\u304f\u308f\u304b\u3089\u306a\u3044\u3002\u3067\u3082\u3001\u307e\u3063\u305f\u304f\u308f\u304b\u3089\u306a\u3044\u306a\u304c\u3089\u3082\u3001\u3082\u3068\u3082\u3068 Xamarin.Forms \u304b\u3089\u306e\u79fb\u884c\u306b\u306a\u308b\u306e\u3060\u304b\u3089\u3001Xamarin.Forms \u306e XAML \u5f62\u5f0f\u3092\u30b3\u30d4\u30da\u3059\u308c\u3070\u3044\u3051\u308b\u3060\u308d\u3046\u3002\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u6700\u521d\u306f Visual Studio 2019 \u3092\u4f7f\u3063\u3066 Xamarin.Forms \u3067\u4f5c\u3063\u3066\u307f\u308b\u3002<\/p>\n\n\n\n

<?xml version="1.0" encoding="utf-8" ?>\n<ContentPage xmlns="http:\/\/xamarin.com\/schemas\/2014\/forms"\n             xmlns:x="http:\/\/schemas.microsoft.com\/winfx\/2009\/xaml"\n             x:Class="XamarinWebApi.MainPage">\n\n    <ScrollView>\n        <Grid RowSpacing="25">\n            <Grid.RowDefinitions>\n                <RowDefinition Height="auto" \/>\n                <RowDefinition Height="auto" \/>\n                <RowDefinition Height="*" \/>\n            <\/Grid.RowDefinitions>\n\n            <Label Text="web api test"\n                Grid.Row="0"\n                HorizontalOptions="CenterAndExpand" \/>\n\n            <Button Text="call group"\n                    Grid.Row="1"\n                    HorizontalOptions="CenterAndExpand"\n                    Clicked="clickGroup"\/>\n\n            <ListView x:Name="lv" Grid.Row="2">\n                <ListView.ItemTemplate>\n                    <DataTemplate>\n                        <TextCell Text="{Binding Name}" \/>\n                    <\/DataTemplate>\n                <\/ListView.ItemTemplate>\n            <\/ListView>\n        <\/Grid>\n    <\/ScrollView>\n<\/ContentPage><\/code><\/pre><\/div>\n\n\n\n
\u305f\u3076\u3093\u3001\u3053\u3093\u306a\u98a8\u306b ListView \u3092\u4f7f\u3063\u305f\u306f\u305a\u3002\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u304d\u306b Web API \u3092\u547c\u3073\u51fa\u3059\u306e\u306f\u3053\u3093\u306a\u611f\u3058\u3002<\/p>\n\n\n\n
private async void clickGroup(object sender, EventArgs e)\n{\n    var cl = new HttpClient();\n    var url = new Uri("http:\/\/192.168.1.28:5000\/api\/areagroup");\n    var json = await cl.GetStringAsync(url);\n    var js = new JsonSerializer();\n    var items = JsonConvert.DeserializeObject<List<AreaGroup>>(json);\n    this.lv.ItemsSource = items;\n}\n<\/code><\/pre><\/div>\n\n\n\n
Web API \u81ea\u4f53\u306f\u30ed\u30fc\u30ab\u30eb\u306a dotnet \u3067\u52d5\u304b\u3057\u3066\u3044\u308b\u306e\u3067\u3001IP \u30a2\u30c9\u30ec\u30b9\u306f\u30ed\u30fc\u30ab\u30eb\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u3082\u306e\u306b\u306a\u3063\u3066\u3044\u308b\u3002Android \u30a8\u30df\u30e5\u30ec\u30fc\u30bf\u304b\u3089\u547c\u3073\u51fa\u3059\u3053\u3068\u306b\u306a\u308b\u306e\u3067 localhost \u3067\u306f\u306a\u304f\u3001IP \u30a2\u30c9\u30ec\u30b9\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n\n\n\n
\u3055\u3066\u3001\u5b9f\u306f\u3053\u308c\u3092\u52d5\u304b\u3059\u3068\u6b21\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
System.Net.WebException: 'Cleartext HTTP traffic to 192.168.1.28 not permitted'\n<\/code><\/pre>\n\n\n\n
\u3068\u3042\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u304b\u3089 Android \u306f\u5e73\u6587\uff08HTTP\uff09\u3092\u901a\u3059\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n
\u3042\u3042\u3001\u305d\u3046\u305d\u3046\u3001\u3068\u3044\u3046\u3053\u3068\u3067 AndroidManifest.xml \u30d5\u30a1\u30a4\u30eb\u306b android:usesCleartextTraffic=”true” \u306e\u8a18\u8ff0\u3092\u3044\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n\n\n\n
<?xml version="1.0" encoding="utf-8"?>\n<manifest xmlns:android="http:\/\/schemas.android.com\/apk\/res\/android">\n\t<uses-sdk android:minSdkVersion="30" android:targetSdkVersion="30" \/>\n\t<application \n\t\tandroid:allowBackup="true" \n\t\tandroid:icon="@mipmap\/appicon" \n\t\tandroid:roundIcon="@mipmap\/appicon_round" \n\t\tandroid:supportsRtl="true"\n\t\tandroid:usesCleartextTraffic="true"\n\t\t>\n\t<\/application>\n\t<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" \/>\n\t<uses-permission android:name="android.permission.INTERNET"\/>\n<\/manifest>\n<\/code><\/pre><\/div>\n\n\n\n
\u3053\u308c\u3067\u30c7\u30fc\u30bf\u304c\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n\n\n\n
\u30c7\u30d0\u30c3\u30b0\u7528\u306e\u5834\u5408\u306f\u5e73\u6587\u306e HTTP \u3092\u901a\u3059\u306e\u304c\u624b\u3063\u53d6\u308a\u65e9\u3044\u306e\u3060\u3051\u3069\u3001\u4e00\u5fdc HTTPS \u306e\u307b\u3046\u3082\u901a\u3057\u3066\u304a\u304d\u305f\u3044\u3068\u601d\u3063\u3066\u3001\u66f8\u304d\u63db\u3048\u3066\u305f\u3081\u3057\u3066\u307f\u308b\u3068\u3002<\/p>\n\n\n\n
var url = new Uri("http:\/\/192.168.1.28:5000\/api\/areagroup");<\/code><\/pre><\/div>\n\n\n\n
\"\"<\/a>
\u4eca\u5ea6\u306f\u8a3c\u660e\u66f8\u306e\u30a8\u30e9\u30fc\u304c\u3067\u308b\u3002\u3053\u308c\u306f\u3001dotnet \u30b3\u30de\u30f3\u30c9\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308b\u8a3c\u660e\u66f8\u304c\u901a\u305b\u306a\u3044\u30a8\u30e9\u30fc\u306a\u306e\u3067\u3001\u5f53\u7136\u3068\u3044\u3048\u3070\u5f53\u7136\u306a\u306e\u3060\u3051\u3069\u3002\u30ed\u30fc\u30ab\u30eb\u306a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306b\u8a3c\u660e\u66f8\u3092\u5165\u308c\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u7121\u8996\u3057\u3066\u307b\u3057\u3044\u3002<\/figcaption><\/figure>\n\n\n\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u6b21\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u63db\u3048\u308b\u3002<\/p>\n\n\n\n
private async void clickGroup(object sender, EventArgs e)\n{\n    var httpHandler = new HttpClientHandler { ServerCertificateCustomValidationCallback = (o, cert, chain, errors) => true };\n    var cl = new HttpClient(httpHandler);\n    var url = new Uri("https:\/\/192.168.1.28:5001\/api\/areagroup");\n    var json = await cl.GetStringAsync(url);\n    var js = new JsonSerializer();\n    var items = JsonConvert.DeserializeObject<List<AreaGroup>>(json);\n    this.lv.ItemsSource = items;\n}\n<\/code><\/pre><\/div>\n\n\n\n
HttpClient \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3068\u304d\u306b\u3001\u8a3c\u660e\u66f8\u306e\u30a8\u30e9\u30fc\u3092\u30b9\u30eb\u30fc\u3059\u308b\u3088\u3046\u306b\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u5165\u308c\u308b\u3002\u3053\u308c\u3082\u4ee5\u524d\u307f\u305f\u3088\u3046\u306a\u3053\u3068\u304c\u3042\u3063\u305f\uff08\u307e\u305f\u7d50\u69cb\u3055\u304c\u3057\u305f\u3051\u3069\uff09\u3002<\/p>\n\n\n\n
\u3053\u308c\u3067\u7121\u4e8b\u901a\u308b\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n\n\n\n
\u3055\u3066\u3001Xamarin.Forms \u3067\u52d5\u304f\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u3053\u308c\u3092 Visual Studio 2022 \u306e MAUI \u306e\u307b\u3046\u306b\u30b3\u30d4\u30fc\u3059\u308b\u3002<\/p>\n\n\n\n
XAML \u306e\u307b\u3046\u306f\u3001\u305d\u306e\u307e\u307e\u30b3\u30d4\u30fc\u3067 ok. <\/p>\n\n\n\n
\u30b3\u30fc\u30c9\u306e\u307b\u3046\u306f\u3053\u3093\u306a\u611f\u3058\u3002<\/p>\n\n\n\n
using System;\nusing System.ComponentModel.DataAnnotations;\nusing System.ComponentModel.DataAnnotations.Schema;\nusing Microsoft.Maui.Controls;\nusing System.Net.Http;\nusing System.Net.Http.Json;\nusing System.Collections.Generic;\n\nnamespace HelloWebApi\n{\n    public partial class MainPage : ContentPage\n    {\n        public MainPage()\n\t\t{\n\t\t\tInitializeComponent();\n\n\t\t}\n        private async void clickGroup(object sender, EventArgs e)\n        {\n            var httpHandler = new HttpClientHandler { ServerCertificateCustomValidationCallback = (o, cert, chain, errors) => true };\n            var cl = new HttpClient(httpHandler);\n            var url = new Uri("https:\/\/192.168.1.28:5001\/api\/areagroup");\n            var items  = await cl.GetFromJsonAsync<List<AreaGroup>>(url);\n            this.lv.ItemsSource = items;\n\t    }\n\t}\n\n<\/code><\/pre><\/div>\n\n\n\n
JSON \u306e\u30d1\u30fc\u30b9\u306f GetFromJsonAsync \u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u697d\u3067\u3059\u306d\u3002\u3068\u304b\u601d\u3063\u305f\u3089\u3001ServerCertificateCustomValidationCallback \u306a\u3068\u3053\u308d\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
\u3069\u3046\u3084\u3089\u3001.NET 6\uff08\u304b\u306a\uff1f\uff09\u306e\u307b\u3046\u3067\u306f\u73fe\u72b6  ServerCertificateCustomValidationCallback  \u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u6a21\u69d8\u3002\u3069\u3046\u3082\u6b21\u306e preview \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3053\u308c\u306f\u5165\u308b\u6a21\u69d8\u3067\u3059\u3002<\/p>\n\n\n\n
\u4ed5\u65b9\u304c\u306a\u3044\u306e\u3067\u3001\u518d\u3073 AndroidManifest.xml \u306b android:usesCleartextTraffic=”true” \u3092\u8ffd\u52a0\u3057\u3066 HTTP \u3067\u901a\u3059\u3053\u3068\u306b\u3059\u308b\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
\u3053\u308c\u3092 Android \u30a8\u30df\u30e5\u30ec\u30fc\u30bf\u3067\u52d5\u304b\u3059\u3068\u3002<\/p>\n\n\n\n
\"\"<\/a>
\u3069\u3046\u3084\u3089\u3001HttpClient \u3067\u30c7\u30fc\u30bf\u306f\u8fd4\u3063\u3066\u304d\u3066\u3044\u308b\u306e\u3060\u304c\u3001ListView \u304c\u52d5\u3044\u3066\u3044\u306a\u3044\u6a21\u69d8\u3002<\/figcaption><\/figure>\n\n\n\n
\u3061\u306a\u307f\u306b\u3001Windows\u30a2\u30d7\u30ea\u306e\u307b\u3046\uff08\u5b9f\u8cea UWP\uff09\u306f\u52d5\u3044\u3066\u307e\u3059\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
\u61d0\u304b\u3057\u306e UWP \u306a\u611f\u3058\u304c\u3059\u308b\u306e\u3060\u3051\u3069\u3001\u3053\u308c\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u304c MainPage.xaml \u3067\u5b8c\u5168\u306b\u5171\u6709\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u30de\u30fc\u30b8\u30f3\u306e\u8abf\u7bc0\u3068\u304b\u304c\u5927\u5909\u305d\u3046\u3002Android \u3068 iOS \u9593\u3067\u5341\u5206\u9762\u5012\u306a\u306e\u3060\u3051\u3069\u3002<\/p>\n\n\n\n
\u3072\u3068\u307e\u305a\u3001\u3053\u3053\u307e\u3067\u52d5\u3044\u305f\u3068\u3044\u3046\u8a18\u9332\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
MAUI \u3092\u59cb\u3081\u308b\u3001\u3068\u3044\u3046\u304b\u8abf\u3079\u308b\u3053\u3068\u306b\u3057\u305f\u306e\u3067\u3001\u306a\u306b\u306f\u3068\u3082\u3042\u308c Web API \u3092\u547c\u3073\u51fa\u3057\u3066\u3001\u306a\u306b\u304b\u30ea\u30b9\u30c8\u8868\u793a\u3092\u3057\u3088\u3046\u3068\u4f5c\u3063\u3066\u307f\u308b\u3002\u3060\u304c\u3001\u4f5c\u3063\u3066\u307f\u308b\u9014\u4e2d\u3067\u3069\u3046\u3082\u52d5\u304b\u306a\u3044\u306e\u3067\u3001\u5099\u5fd8\u9332\u306b\u8a18\u9332\u3057\u3066\u304a\u304f\u3002 \u5b9f\u306f MAUI \u306e\u30c9 … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-10604","post","type-post","status-publish","format-standard","hentry","category-dev"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/10604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=10604"}],"version-history":[{"count":4,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/10604\/revisions"}],"predecessor-version":[{"id":10614,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/10604\/revisions\/10614"}],"wp:attachment":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=10604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=10604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=10604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}