{"id":10590,"date":"2021-03-07T12:33:51","date_gmt":"2021-03-07T03:33:51","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=10590"},"modified":"2021-03-07T12:34:44","modified_gmt":"2021-03-07T03:34:44","slug":"xamarin-forms%e3%81%a7%e3%83%ad%e3%82%b0%e3%82%92%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e5%87%ba%e5%8a%9b%e3%81%99%e3%82%8b%ef%bc%88android%e7%b7%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.moonmile.net\/blog\/archives\/10590","title":{"rendered":"Xamarin.Forms\u3067\u30ed\u30b0\u3092\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3059\u308b\uff08Android\u7de8\uff09"},"content":{"rendered":"<p>Xamarin.Forms \u3067 System.Diagnostics.Trace \u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306b\u51fa\u529b\u3059\u308b\u65b9\u6cd5\u306f\u3001iOS\u7248\u3068\u540c\u3058\u306a\u306e\u3067\u7701\u7565\u3001\u3001\u3001\u3057\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u304c\u3001\u5b9f\u306f\u843d\u3068\u3057\u7a74\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"android%E3%81%A7%E3%83%AD%E3%82%B0%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AF%E4%BD%95%E5%87%A6%E3%81%AB%E5%87%BA%E5%8A%9B%E3%81%95%E3%82%8C%E3%82%8B%E3%81%AE%E3%81%8B\">Android\u3067\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306f\u4f55\u51e6\u306b\u51fa\u529b\u3055\u308c\u308b\u306e\u304b\uff1f<\/h2>\n<p>Xamarin.Forms \u306e\u5171\u901a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3001App\u30af\u30e9\u30b9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\uff08App.xaml.cs\uff09\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3044\u3066\u304a\u304f\u3068iOS\u3067\u3082Android\u3067\u3082\u7d71\u4e00\u7684\u306b Trace \u306e\u7d50\u679c\u3092\u30d5\u30a1\u30a4\u30eb\u306b\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"hljs\"><code><span class=\"hljs-keyword\">var<\/span> dir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);\n<span class=\"hljs-keyword\">var<\/span> filename = Path.Combine(dir, <span class=\"hljs-string\">$\"log-<span class=\"hljs-subst\">{DateTime.Now.ToString(<span class=\"hljs-string\">\"yyyyMMdd-HHmm\"<\/span>)}<\/span>.txt\"<\/span>);\n<span class=\"hljs-keyword\">var<\/span> tw = System.IO.File.OpenWrite(filename);\n<span class=\"hljs-keyword\">var<\/span> tr1 = <span class=\"hljs-keyword\">new<\/span> TextWriterTraceListener(tw);\nSystem.Diagnostics.Trace.AutoFlush = <span class=\"hljs-literal\">true<\/span>;\nSystem.Diagnostics.Trace.Listeners.Add(tr1);\n<\/code><\/pre>\n<p>\u3053\u3053\u3067\u3001Environment.SpecialFolder.MyDocuments\u3067\u53d6\u5f97\u3067\u304d\u308b\u5834\u6240\u306f\u3001iOS\u306e\u307b\u3046\u306f\u300c\u30d5\u30a1\u30a4\u30eb\/\u30a2\u30d7\u30ea\u540d\u300d\u306e\u4e2d\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001Android\u306e\u5834\u5408\u306b\u306f\u30a2\u30d7\u30ea\u81ea\u8eab\u306efiles\u306e\u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d5\u30a9\u30eb\u30c0\u306f\u30a2\u30d7\u30ea\u81ea\u8eab\u3057\u304b\u898b\u3048\u306a\u304f\u3066\u3001\u30c6\u30b9\u30c8\u3092\u3057\u305f\u3068\u304d\u306b\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u624b\u8efd\u306b\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u95b2\u89a7\u3059\u308b\u4f5c\u308b\u3068\u306a\u308b\u3068\u7d50\u69cb\u9762\u5012\u3067\u3059\u3002<\/p>\n<h2 id=\"xamarindroid-%E3%81%A7%E3%81%AF%E3%81%A9%E3%81%86%E3%81%99%E3%82%8B%E3%81%AE%E3%81%8B\">Xamarin.Droid \u3067\u306f\u3069\u3046\u3059\u308b\u306e\u304b\uff1f<\/h2>\n<p>\u5148\u306bAndroid\u56fa\u6709\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\uff08Xamarin.Droid\uff09\u306e\u307b\u3046\u3092\u89e3\u6c7a\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br \/>\niOS\u3068\u540c\u3058\u69d8\u306b\u3001Android\u306b\u3082\u300c\u30d5\u30a1\u30a4\u30eb\u300d\u3068\u3044\u3046\u30a2\u30a4\u30b3\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u300c\u30d5\u30a1\u30a4\u30eb\u300d\u304b\u3089Android\u5185\u90e8\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u76f4\u63a5\u95b2\u89a7\u3067\u304d\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u3053\u306e\u300c\u30d5\u30a1\u30a4\u30eb\u300d\u306e\u5834\u6240\u304b\u3089\u898b\u3048\u308b\u3068\u3053\u308d\u306b\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u304f\u3088\u3046\u306b\u5de5\u592b\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"hljs\"><code><span class=\"hljs-keyword\">var<\/span> contextRef = <span class=\"hljs-keyword\">new<\/span> WeakReference&lt;Context&gt;(<span class=\"hljs-keyword\">this<\/span>);\ncontextRef.TryGetTarget(<span class=\"hljs-keyword\">out<\/span> <span class=\"hljs-keyword\">var<\/span> c);\n<span class=\"hljs-keyword\">var<\/span> dir = c.GetExternalFilesDir(<span class=\"hljs-literal\">null<\/span>).AbsolutePath;\n<span class=\"hljs-keyword\">var<\/span> filename = Path.Combine(dir, <span class=\"hljs-string\">$\"droid-<span class=\"hljs-subst\">{DateTime.Now.ToString(<span class=\"hljs-string\">\"yyyyMMdd-HHmm\"<\/span>)}<\/span>.txt\"<\/span>);\n<span class=\"hljs-keyword\">var<\/span> tw = System.IO.File.OpenWrite(filename);\n<span class=\"hljs-keyword\">this<\/span>.tr1 = <span class=\"hljs-keyword\">new<\/span> TextWriterTraceListener(tw);\nDroidTrace.AutoFlush = <span class=\"hljs-literal\">true<\/span>;\nDroidTrace.Listeners.Add(tr1);\nDroidTrace.WriteLine(<span class=\"hljs-string\">\"ios Application Trace mode \"<\/span> + DateTime.Now.ToString());\n<\/code><\/pre>\n<p>\u3061\u3087\u3063\u3068\u3084\u3084\u3053\u3057\u3044\u3067\u3059\u304c\u3001GetExternalFilesDir\u95a2\u6570\u3092\u4f7f\u3046\u3068\u30a2\u30d7\u30ea\u304c\u516c\u958b\u3057\u3066\u3044\u308b\u30d5\u30a9\u30eb\u30c0\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d5\u30a9\u30eb\u30c0\u306f\u30a2\u30d7\u30ea\u304c\u4ed6\u306e\u30a2\u30d7\u30ea\u3068\u5171\u6709\u3059\u308b\u305f\u3081\u306e\u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001MainActivity::OnCreate \u306b\u66f8\u3044\u3066\u304a\u3051\u3070\u3088\u3044\u3067\u3059\u3002<\/p>\n<pre class=\"hljs\"><code>\/storage\/emulated\/0\/Android\/data\/\uff1c\u30d0\u30f3\u30c9\u30eb\u540d\uff1e\/files\n<\/code><\/pre>\n<p>\u300c\u30d5\u30a1\u30a4\u30eb\u300d\u306e\u307b\u3046\u304b\u3089\u306f\u3001\u30b9\u30de\u30db\u306e\u6a5f\u7a2e\u540d\u306e\u3068\u3068\u3053\u308d\u304b\u3089\u300c\/Andorid\u300d\u306e\u30d5\u30a9\u30eb\u30c0\u30fc\u304b\u3089\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30a2\u30d7\u30ea\u306e\u30d0\u30f3\u30c9\u30eb\u540d\uff08net.moonmile.sample.testapp \u306e\u3088\u3046\u306a\u3082\u306e\uff09\u304c\u542b\u307e\u308c\u308b\u306e\u3067\u3001\u304b\u306a\u308a\u5965\u6df1\u3044\u3068\u3053\u308d\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c\u3001\u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u3067\u3082\u30d5\u30a1\u30a4\u30eb\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"hljs\"><code><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">DroidTrace<\/span>\n{\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-title\">DroidTrace<\/span>(<span class=\"hljs-params\"><\/span>)<\/span>\n    {\n        Listeners = <span class=\"hljs-keyword\">new<\/span> List&lt;TraceListener&gt;();\n    }\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> List&lt;TraceListener&gt; Listeners { <span class=\"hljs-keyword\">get<\/span>; }\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">bool<\/span> AutoFlush { <span class=\"hljs-keyword\">get<\/span>; <span class=\"hljs-keyword\">set<\/span>; } = <span class=\"hljs-literal\">true<\/span>;\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">WriteLine<\/span>(<span class=\"hljs-params\"><span class=\"hljs-keyword\">string<\/span> message<\/span>)<\/span>\n    {\n        <span class=\"hljs-keyword\">foreach<\/span> (<span class=\"hljs-keyword\">var<\/span> it <span class=\"hljs-keyword\">in<\/span> Listeners)\n        {\n            it.WriteLine(message);\n            <span class=\"hljs-keyword\">if<\/span> (AutoFlush == <span class=\"hljs-literal\">true<\/span>) it.Flush();\n        }\n    }\n}\n<\/code><\/pre>\n<p>DroidTrace \u30af\u30e9\u30b9\u306f\u5171\u6709\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e System.Diagnostics.Trace \u3068\u91cd\u306a\u3063\u3066\u3044\u3057\u307e\u3046\u305f\u3081\u306b\u3001\u72ec\u81ea\u306b\u4f5c\u3063\u305f\u7c21\u6613\u30af\u30e9\u30b9\u3067\u3059\u3002\u4f5c\u308a\u65b9\u306fiOS\u7248\u3068\u540c\u3058\u3067\u3059\u306d\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001GetExternalFilesDir \u3067\u53d6\u5f97\u3057\u305f\u30d1\u30b9\u306b\u66f8\u304d\u8fbc\u3080\u3068 Android \u306e\u300c\u30d5\u30a1\u30a4\u30eb\u300d\u304b\u3089\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u95b2\u89a7\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"xamarinforms-%E5%81%B4%E3%81%AE%E3%83%91%E3%82%B9%E3%82%92%E6%B1%BA%E3%82%81%E3%82%8B\">Xamarin.Forms \u5074\u306e\u30d1\u30b9\u3092\u6c7a\u3081\u308b<\/h2>\n<p>\u3068\u306a\u308b\u3068\u3001\u5171\u6709\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u65b9\u3067\u3082 GetExternalFilesDir \u306e\u30d1\u30b9\u306b\u51fa\u529b\u3059\u308c\u3070\u826f\u3044\u3053\u3068\u304c\u5206\u304b\u308b\u306e\u3067\u3059\u304c\u3001\u3053\u306e\u30d1\u30b9\u306f Android \u5185\u90e8\u3067\u6c7a\u307e\u308b\u3082\u306e\u306a\u306e\u3067\u3001\u5171\u6709\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<br \/>\n\u771f\u9762\u76ee\u306b\u306f\u308b\u306a\u3089\u3070\u3001DependencyService \u3067 DI \u3059\u308b\u306e\u304c\u7b4b\u306a\u3093\u3067\u3057\u3087\u3046\u304c\u3001\u6240\u8a6e iOS \u3068 Android \u306e\u9055\u3044\u3057\u304b\u306a\u3044\u306e\u3067\u3001\u6b21\u306e\u3088\u3046\u306b\u76f4\u63a5\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"hljs\"><code><span class=\"hljs-keyword\">var<\/span> dir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);\n<span class=\"hljs-keyword\">if<\/span> ( Device.RuntimePlatform == Device.Android )\n{\n    <span class=\"hljs-comment\">\/\/ Android \u306e\u5834\u5408\u306f\u6c7a\u3081\u6253\u3061\u306b\u3059\u308b<\/span>\n    dir = <span class=\"hljs-string\">\"\/storage\/emulated\/0\/Android\/data\/\uff1c\u30d0\u30f3\u30c9\u30eb\u540d\uff1e\/files\"<\/span>;\n}\n<span class=\"hljs-keyword\">var<\/span> filename = Path.Combine(dir, <span class=\"hljs-string\">$\"log-<span class=\"hljs-subst\">{DateTime.Now.ToString(<span class=\"hljs-string\">\"yyyyMMdd-HHmm\"<\/span>)}<\/span>.txt\"<\/span>);\n<span class=\"hljs-keyword\">var<\/span> tw = System.IO.File.OpenWrite(filename);\n<span class=\"hljs-keyword\">var<\/span> tr1 = <span class=\"hljs-keyword\">new<\/span> TextWriterTraceListener(tw);\nSystem.Diagnostics.Trace.AutoFlush = <span class=\"hljs-literal\">true<\/span>;\nSystem.Diagnostics.Trace.Listeners.Add(tr1);\n<\/code><\/pre>\n<p>\u3068\u3044\u3046\u308f\u3051\u3067\u3001\u3061\u3087\u3063\u3068\u96d1\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u3072\u3068\u307e\u305a iOS \u3068 Android \u306e\u30ed\u30b0\u51fa\u529b\u74b0\u5883\u304c\u3053\u308c\u3067\u6574\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Xamarin.Forms \u3067 System.Diagnostics.Trace \u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306b\u51fa\u529b\u3059\u308b\u65b9\u6cd5\u306f\u3001iOS\u7248\u3068\u540c\u3058\u306a\u306e\u3067\u7701\u7565\u3001\u3001\u3001\u3057\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u304c\u3001\u5b9f\u306f\u843d\u3068\u3057\u7a74\u304c\u3042\u308a\u307e\u3059\u3002 Android\u3067\u30ed\u30b0\u30d5\u30a1 &hellip; <a href=\"https:\/\/www.moonmile.net\/blog\/archives\/10590\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/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-10590","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\/10590","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=10590"}],"version-history":[{"count":1,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/10590\/revisions"}],"predecessor-version":[{"id":10591,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/10590\/revisions\/10591"}],"wp:attachment":[{"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=10590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=10590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=10590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}