{"id":3202,"date":"2023-12-21T10:00:23","date_gmt":"2023-12-21T01:00:23","guid":{"rendered":"https:\/\/comcent.co.jp\/blog\/?p=3202"},"modified":"2023-12-19T19:06:50","modified_gmt":"2023-12-19T10:06:50","slug":"flutter%e3%81%a7%e5%86%99%e7%9c%9f%e3%82%92%e6%ad%a3%e6%96%b9%e5%bd%a2%e3%81%ae%e7%8a%b6%e6%85%8b%e3%81%a7%e6%92%ae%e3%82%8b","status":"publish","type":"post","link":"https:\/\/comcent.co.jp\/blog\/archives\/3202\/","title":{"rendered":"Flutter\u3067\u5199\u771f\u3092\u6b63\u65b9\u5f62\u306e\u72b6\u614b\u3067\u64ae\u308b"},"content":{"rendered":"\n

\u4f5c\u6210\u65e5\uff1a2023\/09\/29
\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2023\/09\/29<\/p>\n\n\n\n

\u74b0\u5883<\/h4>\n\n\n\n

\u203b\u52d5\u4f5c\u78ba\u8a8d\u306fAndroid\u5b9f\u6a5fPixel 7\u3067\u306e\u307f\u884c\u3044\u307e\u3057\u305f\u3002
flutter\uff1a3.13.1
camera\uff1a0.10.5+4
https:\/\/pub.dev\/packages\/camera<\/a>
image 4.1.2
https:\/\/pub.dev\/packages\/image<\/a><\/p>\n\n\n\n

\u306f\u3058\u3081\u306b<\/h4>\n\n\n\n

\u4eca\u56de\u306f\u3001Flutter\u3067\u5199\u771f\u64ae\u5f71\u3092\u3059\u308b\u969b\u306b\u3001\u6b63\u65b9\u5f62\u306e\u72b6\u614b\u3067\u64ae\u5f71\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u3053\u3061\u3089\u304c\u5b8c\u6210\u3057\u305f\u30a2\u30d7\u30ea\u306e\u753b\u50cf\u3067\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

CameraPreview\u81ea\u4f53\u3092\u5207\u308a\u629c\u3044\u305f\u308a\u5909\u5f62\u3055\u305b\u308b\u624b\u6bb5\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u3053\u306e\u3088\u3046\u306bContainer\u3092\u4e0a\u306b\u91cd\u306d\u3066\u3001\u64ae\u5f71\u5f8c\u306b\u81ea\u52d5\u3067\u5207\u308a\u629c\u304f\u7591\u4f3c\u7684\u306a\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

CameraPreview\u3092\u5207\u308a\u629c\u3044\u305f\u308a\u5909\u5f62\u3055\u305b\u305f\u308a\u3059\u308b\u30b3\u30fc\u30c9\u3082\u8a66\u3057\u3066\u307f\u305f\u306e\u3067\u3059\u304c\u3001\u79c1\u306e\u74b0\u5883\u3060\u3068\u30ab\u30e1\u30e9\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u81ea\u4f53\u304c\u6a2a\u306b\u3064\u3076\u308c\u3066\u3057\u307e\u3063\u305f\u308a\u3057\u3066\u3001\u6b63\u65b9\u5f62\u306b\u5207\u308a\u629c\u3044\u305f\u30d7\u30ec\u30d3\u30e5\u30fc\u3068\u3044\u3046\u306e\u304c\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n\n\n\n

\u305d\u306e\u305f\u3081\u3001\u3046\u307e\u304f\u5207\u308a\u629c\u3051\u305fStack\u3067\u91cd\u306d\u308b\u65b9\u6cd5\u3067\u3084\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

CameraController\u306einitialize<\/h4>\n\n\n\n

\u307e\u305a\u3001CameraController\u306einitialize\u3092\u3057\u307e\u3059\u3002
https:\/\/pub.dev\/documentation\/camera\/latest\/camera\/CameraController-class.html<\/p>\n\n\n\n

await _cameraController!.initialize();<\/code><\/pre><\/div>\n\n\n\n
\u305d\u306e\u5f8c\u306b\u3001\u30ab\u30e1\u30e9\u306e\u5411\u304d\u3092\u56fa\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
await _cameraController!.lockCaptureOrientation(DeviceOrientation.portraitUp);\n<\/code><\/pre><\/div>\n\n\n\n
\u30ab\u30e1\u30e9\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u8868\u793a<\/h4>\n\n\n\n
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CameraPreview(_cameraController!)<\/code><\/pre><\/div>\n\n\n\n
\u3053\u308c\u3060\u3051\u3067\u3001\u30d7\u30ec\u30d3\u30e5\u30fc\u3092\u8868\u793a\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e0b\u534a\u5206\u3092\u96a0\u3059Container\u3092\u91cd\u306d\u308b<\/h4>\n\n\n\n
\u4e0a\u8a18\u3067\u30ab\u30e1\u30e9\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\u306f\u3067\u304d\u305f\u306e\u3067\u3001\u3042\u3068\u306f\u4e0b\u534a\u5206\u3092\u96a0\u3057\u3066\u30b7\u30e3\u30c3\u30bf\u30fc\u30dc\u30bf\u30f3\u3092\u7f6e\u304f\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n
final previewWidth = MediaQuery.of(context).size.width;\nfinal previewHeight = MediaQuery.of(context).size.height;\nStack(\n  children: [\n\/\/ \u5168\u4f53\u306e\u9ad8\u3055\u7528\n    SizedBox(\n      height: previewHeight-kToolbarHeight,\n    ),\n\/\/ \u30ab\u30e1\u30e9\u306e\u30d7\u30ec\u30d3\u30e5\u30fc\n    SizedBox(\n      width: previewWidth,\n      child: CameraPreview(_cameraController!)\n    ),\n\/\/\u4e0b\u534a\u5206\u96a0\u3057+\u30b7\u30e3\u30c3\u30bf\u30fc\u30dc\u30bf\u30f3\n    Positioned(\n      top: _cameraController!.value.previewSize!.width \/ _cameraController!.value.previewSize!.aspectRatio,\n      child: Container(\n        alignment: Alignment.topCenter,\n        width: _cameraController!.value.previewSize!.width \/ _cameraController!.value.previewSize!.aspectRatio + 10,\n        height: _cameraController!.value.previewSize!.width \/ _cameraController!.value.previewSize!.aspectRatio,\n        child: Center(\n          child: SizedBox(\n            width: 80,\n            height: 80,\n            child: ElevatedButton(\n              style: ElevatedButton.styleFrom<\/em>(\n                shape: RoundedRectangleBorder(\n                  borderRadius: BorderRadius.circular(50.0),\n                ),\n             ),\n             onPressed: () async{\n               XFile photo = await _cameraController!.takePicture();\n             },\n             child: Icon(\n               Icons.camera<\/em>\n             ),\n           ),\n         ),\n       ),\n     ),\n   ),\n  ]\n),<\/code><\/pre><\/div>\n\n\n\n
\u3053\u306e\u3088\u3046\u306bStack\u3067Widget\u3092\u91cd\u306d\u308c\u3070\u3001\u6b63\u65b9\u5f62\u306e\u898b\u305f\u76ee\u306e\u30ab\u30e1\u30e9\u306e\u30da\u30fc\u30b8\u304c\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e0b\u534a\u5206\u96a0\u3057\u306ePositioned\u306etop\u3084Width\u3001Height\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3042\u3063\u305f\u4ed5\u69d8\u306b\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002
\u691c\u7d22\u3059\u308b\u3068\u3044\u308d\u3044\u308d\u306a\u8a08\u7b97\u65b9\u6cd5\u304c\u3067\u3066\u304d\u307e\u3059\u306e\u3067\u3001\u4f5c\u6210\u3057\u305f\u3044\u4f4d\u7f6e\u306b\u304f\u308b\u3088\u3046\u306b\u8abf\u7bc0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u6b63\u65b9\u5f62\u306e\u5199\u771f\u306b\u30c8\u30ea\u30df\u30f3\u30b0\u3059\u308b<\/h4>\n\n\n\n
\u30b7\u30e3\u30c3\u30bf\u30fc\u30dc\u30bf\u30f3\u306eonPressed\u306f\u3001\u3053\u306e\u307e\u307e\u3060\u3068\u666e\u6bb5\u901a\u308a\u9577\u65b9\u5f62\u306e\u5199\u771f\u304c\u64ae\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u6b63\u65b9\u5f62\u306b\u5207\u308a\u53d6\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
onPressed: () async{\n  const saveWidth = 500;\n  String path = '${(await getTemporaryDirectory()).path}\/${DateTime.now().millisecondsSinceEpoch}.png';\n  \n  XFile takedPhoto = await _cameraController!.takePicture();\n  final decodeImage = img.decodeImage(\n    await File(takedPhoto.path).readAsBytes()\n  )!;\n  final resizedImage = img.copyResize(\n    decodeImage,\n    width: saveWidth\n  );\n  Image croppedImage = img.copyCrop(\n                                resizedImage,\n                                x: 0,\n                                y: 0,\n                                width: saveWidth,\n                                height: saveWidth\n                            );\n}<\/code><\/pre><\/div>\n\n\n\n
takePicture\u3067\u64ae\u5f71\u3057\u305f\u5199\u771f\u3092\u3001image\u30d1\u30c3\u30b1\u30fc\u30b8\u3067decode, crop\u3057\u3066\u3044\u307e\u3059\u3002
\u79c1\u306e\u74b0\u5883\u3067\u306fimage\u304c\u91cd\u8907\u3057\u3066\u3044\u305f\u306e\u3067 as img \u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u308c\u3067\u5de6\u4e0a\u304b\u3089saveWidth\u306e\u30b5\u30a4\u30ba\u306e\u6b63\u65b9\u5f62\u306b\u5207\u308a\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u3053\u306ecroppedImage\u3092riverpod\u7b49\u306e\u72b6\u614b\u7ba1\u7406\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u7ba1\u7406\u3057\u3066\u30d5\u30a9\u30fc\u30e0\u306b\u623b\u308c\u3070\u3001\u5207\u308a\u53d6\u3063\u305f\u72b6\u614b\u306e\u5199\u771f\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u3068\u3081<\/h4>\n\n\n\n
\u3053\u306e\u77e5\u8b58\u3092\u5fdc\u7528\u3059\u308c\u3070\u3001ClipRect\u3057\u305fContainer\u3092\u91cd\u306d\u3066\u597d\u304d\u306a\u5f62\u306b\u5207\u308a\u629c\u304f\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u306d\u3002
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\u4f5c\u6210\u65e5\uff1a2023\/09\/29\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2023\/09\/29 \u203b\u52d5\u4f5c\u78ba\u8a8d\u306fAndroid\u5b9f\u6a5fPixel 7\u3067\u306e\u307f\u884c\u3044\u307e\u3057\u305f\u3002flutter\uff1a3.13.1camera\uff1a0.10.5+4https:\/\/pub.dev\/pac […]<\/p>\n","protected":false},"author":10,"featured_media":3226,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[171,41],"coauthors":[48],"class_list":["post-3202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-app","tag-flutter","tag-41"],"author_meta":{"nickname":"A.A","position":"\u30d7\u30ed\u30b0\u30e9\u30de\u30fc","icon_url":"https:\/\/comcent.co.jp\/blog\/images\/authorAa-150x150.png","author_url":"https:\/\/comcent.co.jp\/blog\/archives\/author\/aida\/"},"tag_names":["Flutter","\u30a2\u30d7\u30ea\u958b\u767a"],"thumbnail_url":"https:\/\/comcent.co.jp\/blog\/wp-content\/uploads\/2023\/09\/\u30d1\u30bf\u30fc\u30f3A-300x200.jpg","_links":{"self":[{"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/posts\/3202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/comments?post=3202"}],"version-history":[{"count":13,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/posts\/3202\/revisions"}],"predecessor-version":[{"id":3527,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/posts\/3202\/revisions\/3527"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/media\/3226"}],"wp:attachment":[{"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/media?parent=3202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/categories?post=3202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/tags?post=3202"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/comcent.co.jp\/blog\/wp-json\/wp\/v2\/coauthors?post=3202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}