{"id":1859,"date":"2016-11-12T21:17:16","date_gmt":"2016-11-12T12:17:16","guid":{"rendered":"http:\/\/blog.4star.link\/?p=1859"},"modified":"2016-11-12T21:17:16","modified_gmt":"2016-11-12T12:17:16","slug":"ios-swift%e3%81%a7qr%e3%82%b3%e3%83%bc%e3%83%89%e8%aa%8d%e8%ad%98%e6%99%82%e3%81%ab%e6%99%82%e3%80%85%e3%82%af%e3%83%a9%e3%83%83%e3%82%b7%e3%83%a5%e3%81%99%e3%82%8b%e9%9a%9b%e5%af%be%e7%ad%96%ef%bc%81","status":"publish","type":"post","link":"https:\/\/blog.4star.link\/?p=1859","title":{"rendered":"iOS swift\u3067QR\u30b3\u30fc\u30c9\u8a8d\u8b58\u6642\u306b\u6642\u3005\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u969b\u5bfe\u7b56\uff01"},"content":{"rendered":"

iphone swift\u3067QR\u30b3\u30fc\u30c9\u8a8d\u8b58\u6642\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u4e8b\u304c\u3042\u308b\u3002\u305d\u306e\u5bfe\u7b56<\/h2>\n

QR\u30b3\u30fc\u30c9\u30ea\u30fc\u30c0\u30fc\u30a2\u30d7\u30ea\u3067\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30ab\u30e1\u30e9\u5185\u306eQR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308b\u6642\u306b\u3001
\n\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u4e8b\u304c\u4e00\u5b9a\u78ba\u7387\u3067\u3042\u3063\u305f\u3002<\/p>\n

\u30a8\u30e9\u30fc\u5185\u5bb9<\/h4>\n

fatal error: unexpectedly found nil while unwrapping an Optional value\n\n<\/code><\/pre>\n
\u30af\u30e9\u30c3\u30b7\u30e5\u5bfe\u8c61\u306e\u30b3\u30fc\u30c9<\/h4>\n

qrCodeObject = previewLayer.transformedMetadataObjectForMetadataObject(\n                                metadata as! AVMetadataMachineReadableCodeObject) as!\n                        AVMetadataMachineReadableCodeObject\n\n<\/code><\/pre>\n
\u3053\u306e\u90e8\u5206\u3067\u3001\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u4e8b\u304c\u3042\u308b\u3002\u3002<\/p>\n
\u8272\u3005\u8abf\u3079\u305f\u3089\u3001AVCaptureVideoPreviewLayer\u5185\u306e\u30e1\u30bd\u30c3\u30c9\u3067nil\u304c\u5165\u308b\u4e8b\u304c\u3042\u308b\u3089\u3057\u3044\u3002<\/p>\n
\u8d85\u53c2\u8003\uff1ahttp:\/\/ja.stackoverflow.com\/questions\/14968\/%E4%B8%8B%E8%A8%98%E3%83%9A%E3%83%BC%E3%82%B8%E3%82%92%E5%8F%82%E8%80%83%E3%81%AB%EF%BC%92%E6%AC%A1%E5%85%83%E3%83%90%E3%83%BC%E3%82%B3%E3%83%BC%E3%83%89%E8%AA%AD%E3%81%BF%E5%8F%96%E3%82%8A%E3%82%92swift2%E3%81%A7%E6%9B%B8%E3%81%84%E3%81%9F%E3%81%AE%E3%81%A7%E3%81%99%E3%81%8C-%E5%AE%9F%E6%A9%9F%E3%83%87%E3%83%90%E3%83%83%E3%82%AF%E6%99%82%E3%81%AB%E3%82%B3%E3%83%B3%E3%82%BD%E3%83%BC%E3%83%AB%E7%94%BB%E9%9D%A2%E3%81%AE-fatal-error-unexpectedly<\/a><\/p>\n
\u30dc\u30af\u304c\u5bfe\u7b56\u3057\u305f\u30b3\u30fc\u30c9<\/h3>\n

if previewLayer.transformedMetadataObjectForMetadataObject(\n                                metadata as! AVMetadataMachineReadableCodeObject) != nil {\n    \/\/nil\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304b\u3089\u51e6\u7406\n    qrCodeObject = previewLayer.transformedMetadataObjectForMetadataObject(\n                                    metadata as! AVMetadataMachineReadableCodeObject) as!\n                            AVMetadataMachineReadableCodeObject\n\n}else {\n    \/\/ \u30ad\u30e3\u30d7\u30c1\u30e3\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u59cb\u52d5\n    captureSession.startRunning()\n}\n\n<\/code><\/pre>\n
nil\u30c1\u30a7\u30c3\u30af\u3092\u304a\u3053\u306a\u3063\u3066\u3089\u51e6\u7406\u3059\u308b\u4e8b\u3067\u89e3\u6c7a\u3057\u307e\u3057\u305f\u3002
\n\u307e\u305f\u3001\u305f\u3060\u306enil\u306e\u5834\u5408\u306f\u30ab\u30e1\u30e9\u304c\u52d5\u304b\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u3001
\n\u30ad\u30e3\u30d7\u30c1\u30e3\u30fc\u30bb\u30c3\u30b7\u30e7\u30f3<\/strong>\u7b49\u3092\u3001\u518d\u5ea6\u8d70\u3089\u305b\u308b\u4e8b\u3067\u601d\u3044\u901a\u308a\u306e\u52d5\u4f5c\u306b\u306a\u308a\u307e\u3057\u305f\u3002\uff01
\n\u53c2\u8003\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\uff01\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
iphone swift\u3067QR\u30b3\u30fc\u30c9\u8a8d\u8b58\u6642\u306b\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u4e8b\u304c\u3042\u308b\u3002\u305d\u306e\u5bfe\u7b56 QR\u30b3\u30fc\u30c9\u30ea\u30fc\u30c0\u30fc\u30a2\u30d7\u30ea\u3067\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30ab\u30e1\u30e9\u5185\u306eQR\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u53d6\u308b\u6642\u306b\u3001 \u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u4e8b\u304c\u4e00\u5b9a\u78ba\u7387\u3067\u3042\u3063\u305f\u3002 \u30a8\u30e9\u30fc\u5185\u5bb9 fatal e … <\/p>\n
“iOS swift\u3067QR\u30b3\u30fc\u30c9\u8a8d\u8b58\u6642\u306b\u6642\u3005\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u969b\u5bfe\u7b56\uff01” \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[265,234,318],"tags":[266,179,344,329,345],"class_list":["post-1859","post","type-post","status-publish","format-standard","hentry","category-ios","category-234","category-318","tag-ios","tag-iphone","tag-qrcode","tag-swift2-3","tag-345"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/posts\/1859"}],"collection":[{"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.4star.link\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1859"}],"version-history":[{"count":1,"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/posts\/1859\/revisions"}],"predecessor-version":[{"id":1860,"href":"https:\/\/blog.4star.link\/index.php?rest_route=\/wp\/v2\/posts\/1859\/revisions\/1860"}],"wp:attachment":[{"href":"https:\/\/blog.4star.link\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.4star.link\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.4star.link\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}