{"id":130560,"date":"2024-03-25T15:19:08","date_gmt":"2024-03-25T06:19:08","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/androidcreatenewfile%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%a7%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b\/"},"modified":"2024-04-05T14:16:10","modified_gmt":"2024-04-05T05:16:10","slug":"androidcreatenewfile%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%a7%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/androidcreatenewfile%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%a7%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b\/","title":{"rendered":"Android:createNewFile()\u30e1\u30bd\u30c3\u30c9\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b"},"content":{"rendered":"<p>Android\u3067\u306f\u3001File\u30af\u30e9\u30b9`createNewFile()`\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">file<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(<span class=\"hljs-string\">\"\/sdcard\/myfile.txt\"<\/span>);\r\n<span class=\"hljs-keyword\">try<\/span> {\r\n<span class=\"hljs-keyword\">if<\/span> (file.createNewFile()) {\r\nLog.d(<span class=\"hljs-string\">\"MainActivity\"<\/span>, <span class=\"hljs-string\">\"File created successfully\"<\/span>);\r\n} <span class=\"hljs-keyword\">else<\/span> {\r\nLog.d(<span class=\"hljs-string\">\"MainActivity\"<\/span>, <span class=\"hljs-string\">\"File already exists\"<\/span>);\r\n}\r\n} <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\nLog.e(<span class=\"hljs-string\">\"MainActivity\"<\/span>, <span class=\"hljs-string\">\"Error creating file: \"<\/span> + e.getMessage());\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u306e\u4f8b\u3067\u306f\u3001&#8221;myfile.txt&#8221;\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u3001createNewFile()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u4f5c\u6210\u3092\u8a66\u307f\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u306b\u6210\u529f\u3057\u305f\u5834\u5408\u306f\u30e1\u30bd\u30c3\u30c9\u306ftrue\u3092\u8fd4\u3057\u3001&#8221;\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u306b\u6210\u529f\u3057\u307e\u3057\u305f&#8221;\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u304c\u65e2\u306b\u5b58\u5728\u3057\u3066\u3044\u305f\u5834\u5408\u306f\u30e1\u30bd\u30c3\u30c9\u306ffalse\u3092\u8fd4\u3057\u3001&#8221;\u30d5\u30a1\u30a4\u30eb\u306f\u65e2\u306b\u5b58\u5728\u3057\u3066\u3044\u307e\u3059&#8221;\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001IOException\u3092\u30ad\u30e3\u30c3\u30c1\u3057\u3066\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>Android \u3067\u306f\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001AndroidManifest.xml \u30d5\u30a1\u30a4\u30eb\u306b\u30d5\u30a1\u30a4\u30eb\u66f8\u304d\u8fbc\u307f\u306e\u6a29\u9650\u3092\u5ba3\u8a00\uff08WRITE_EXTERNAL_STORAGE\uff09\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Android\u3067\u306f\u3001File\u30af\u30e9\u30b9`createNewFile()`\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 File file = new File(&#8220;\/sdcard\/myfile.t [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-130560","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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