{"id":111265,"date":"2026-09-30T19:49:17","date_gmt":"2026-09-30T11:49:17","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/111265.html"},"modified":"2026-09-30T19:49:17","modified_gmt":"2026-09-30T11:49:17","slug":"flutter-%e7%8a%b6%e6%80%81%e7%ae%a1%e7%90%86%e6%a1%86%e6%9e%b6%e5%af%b9%e6%af%94%ef%bc%88%e5%85%ad%ef%bc%89%ef%bc%9a%e5%90%8c%e4%b8%80%e4%b8%aa%e8%b4%ad%e7%89%a9%e8%bd%a6%ef%bc%8c%e5%9b%9b%e7%a7%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/111265.html","title":{"rendered":"Flutter \u72b6\u6001\u7ba1\u7406\u6846\u67b6\u5bf9\u6bd4\uff08\u516d\uff09\uff1a\u540c\u4e00\u4e2a\u8d2d\u7269\u8f66\uff0c\u56db\u79cd\u65b9\u6848\u600e\u4e48\u843d\u5730\uff1f"},"content":{"rendered":"

\u770b\u56db\u7bc7\u6559\u7a0b\u65f6，\u6bcf\u79cd\u6846\u67b6\u4f3c\u4e4e\u90fd\u80fd\u8ba9\u8d2d\u7269\u8f66\u89d2\u6807\u52a0\u4e00\u3002\u771f\u6b63\u505a\u7ed3\u7b97\u9875，\u95ee\u9898\u624d\u51fa\u73b0：\u63a5\u53e3\u6b63\u5728\u91cd\u65b0\u62a5\u4ef7，\u7528\u6237\u53c8\u52a0\u4e86\u4e00\u4ef6\u5546\u54c1；\u65e7\u62a5\u4ef7\u968f\u540e\u8fd4\u56de，\u754c\u9762\u80fd\u4e0d\u80fd\u628a\u5b83\u5f53\u6210\u65b0\u4ef7\u683c？\u9875\u9762\u9000\u51fa\u6216\u7528\u6237\u767b\u51fa\u65f6，\u8fd9\u4efd\u72b6\u6001\u7531\u8c01\u6e05\u7406？<\/p>\n

\u4e00\u53e5\u8bdd\u7ed3\u8bba：\u56db\u79cd\u65b9\u6848\u90fd\u80fd\u5b8c\u6210\u8d2d\u7269\u8f66；\u5f71\u54cd\u957f\u671f\u7ef4\u62a4\u7684\u4e0d\u662f\u201c\u52a0\u4e00\u201d\u5199\u4e86\u51e0\u884c，\u800c\u662f\u72b6\u6001\u7684\u771f\u5b9e\u6765\u6e90\u3001\u5f02\u6b65\u7ed3\u679c\u7684\u5f52\u5c5e\u3001\u8ba2\u9605\u8303\u56f4\u548c\u53ef\u9a8c\u8bc1\u7684\u9500\u6bc1\u89c4\u5219\u3002<\/p>\n

\u8fd9\u662f\u7cfb\u5217\u7b2c\u516d\u7ae0，\u4e5f\u662f\u7b2c\u4e00\u8f6e\u6a2a\u5411\u5b9e\u6218\u3002\u5bf9\u6bd4\u7248\u672c\u56fa\u5b9a\u4e3a provider 6.1.5+1\u3001flutter_riverpod 3.4.3\u3001flutter_bloc 9.1.1\u3001get 4.7.3，\u7248\u672c\u4fe1\u606f\u4e8e 2026-09-29 \u4ece pub.dev \u6838\u5bf9\u3002\u6587\u4e2d\u7684\u8c03\u7528\u94fe\u662f\u5404\u5e93\u516c\u5f00\u6a21\u578b\u7684\u6982\u5ff5\u5316\u6d41\u7a0b，\u4e0d\u66ff\u4ee3\u524d\u56db\u7bc7\u7684\u9010\u884c\u793a\u4f8b；\u6ca1\u6709\u8de8\u8bbe\u5907\u57fa\u51c6\u6d4b\u8bd5，\u4e5f\u4e0d\u636e\u6b64\u7ed9\u6846\u67b6\u6392\u6027\u80fd\u540d\u6b21\u3002<\/p>\n

1. \u5148\u56fa\u5b9a\u9700\u6c42，\u5426\u5219\u5bf9\u6bd4\u4e0d\u516c\u5e73<\/h3>\n

\u6211\u4eec\u53ea\u505a\u4e00\u4e2a\u5c0f\u800c\u5b8c\u6574\u7684\u8d2d\u7269\u8f66\u573a\u666f：<\/p>\n\n\u65f6\u523b\u9884\u671f\u884c\u4e3a<\/tr>\n\n\n\n\n\n\n
\u6253\u5f00\u5546\u54c1\u5217\u8868<\/td>\n\u89d2\u6807\u663e\u793a 0；\u8be6\u60c5\u9875\u4e0e\u7ed3\u7b97\u9875\u8bfb\u540c\u4e00\u6570\u91cf\u3002<\/td>\n<\/tr>\n
\u70b9\u51fb\u201c\u52a0\u5165\u8d2d\u7269\u8f66\u201d<\/td>\n\u6570\u91cf\u53d8 1，\u5df2\u663e\u793a\u8be5\u6570\u636e\u7684\u9875\u9762\u5f97\u5230\u66f4\u65b0\u3002<\/td>\n<\/tr>\n
\u5728\u7ed3\u7b97\u9875\u89e6\u53d1\u62a5\u4ef7<\/td>\n\u663e\u793a\u52a0\u8f7d\u4e2d；\u6210\u529f\u5c55\u793a\u62a5\u4ef7，\u5931\u8d25\u5c55\u793a\u91cd\u8bd5\u5165\u53e3\u3002<\/td>\n<\/tr>\n
\u62a5\u4ef7\u671f\u95f4\u518d\u6b21\u6539\u6570\u91cf<\/td>\n\u65e7\u6570\u91cf\u5bf9\u5e94\u7684\u62a5\u4ef7\u4e0d\u80fd\u8986\u76d6\u65b0\u6570\u91cf\u7684\u7ed3\u679c\u3002<\/td>\n<\/tr>\n
\u79bb\u5f00\u7ed3\u7b97\u9875\u6216\u767b\u51fa<\/td>\n\u9875\u9762\u4e13\u5c5e\u8bf7\u6c42\u505c\u6b62\u6216\u88ab\u5ffd\u7565；\u767b\u5f55\u4f1a\u8bdd\u7684\u8d2d\u7269\u8f66\u6309\u4e1a\u52a1\u89c4\u5219\u91cd\u7f6e\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6570\u636e\u8fb9\u754c\u4e5f\u8981\u56fa\u5b9a：\u672c\u5730\u8d2d\u7269\u8f66\u6570\u91cf\u53ef\u4ee5\u5148\u5c55\u793a，\u4f46\u6700\u7ec8\u652f\u4ed8\u91d1\u989d\u7531\u670d\u52a1\u7aef\u786e\u8ba4\u3002\u72b6\u6001\u7ba1\u7406\u5e93\u53ea\u8d1f\u8d23\u7ec4\u7ec7\u5ba2\u6237\u7aef\u7684\u72b6\u6001\u6d41，\u4e0d\u51b3\u5b9a\u5e93\u5b58\u3001\u4ef7\u683c\u548c\u652f\u4ed8\u7684\u771f\u503c\u3002<\/p>\n

\u56db\u5957\u65b9\u6848\u90fd\u5e94\u6709\u540c\u4e00\u4efd\u9886\u57df\u6a21\u578b：\u8d2d\u7269\u8f66\u6570\u91cf\u3001\u62a5\u4ef7\u72b6\u6001（\u672a\u8bf7\u6c42\/\u52a0\u8f7d\/\u6210\u529f\/\u5931\u8d25）\u3001\u672c\u6b21\u62a5\u4ef7\u5bf9\u5e94\u7684\u8d2d\u7269\u8f66\u7248\u672c\u3002\u4ed3\u5e93\u63a5\u53e3\u8d1f\u8d23\u8bf7\u6c42；\u9875\u9762\u8d1f\u8d23\u663e\u793a\u548c\u89e6\u53d1\u52a8\u4f5c\u3002\u628a\u8fd9\u51e0\u4e2a\u804c\u8d23\u56fa\u5b9a，\u6bd4\u8f83\u624d\u4e0d\u4f1a\u53d8\u6210\u201c\u67d0\u7bc7\u793a\u4f8b\u6f0f\u4e86\u9519\u8bef\u5904\u7406，\u6240\u4ee5\u5b83\u66f4\u77ed\u201d\u3002<\/p>\n

2. \u540c\u4e00\u6b21\u70b9\u51fb，\u5728\u56db\u5957\u65b9\u6848\u91cc\u8d70\u54ea\u6761\u8def？<\/h3>\n\n\u65b9\u6848\u52a8\u4f5c\u4ece\u54ea\u91cc\u8fdb\u5165\u8c01\u6301\u6709\u8d2d\u7269\u8f66\u72b6\u6001\u9875\u9762\u600e\u4e48\u89c2\u5bdf\u8c01\u8d1f\u8d23\u4f5c\u7528\u57df<\/tr>\n\n\n\n\n\n
Provider<\/td>\ncontext.read \u627e\u5230 ChangeNotifier，\u8c03\u7528\u65b9\u6cd5<\/td>\n\u63d0\u4f9b\u7ed9 Widget \u5b50\u6811\u7684 Notifier<\/td>\nConsumer \u6216 context.select \u7b49<\/td>\nChangeNotifierProvider \u653e\u7f6e\u4f4d\u7f6e；\u7531\u5176\u521b\u5efa\u7684\u5bf9\u8c61\u968f Provider \u9500\u6bc1\u3002<\/td>\n<\/tr>\n
Riverpod<\/td>\nref.read \u627e\u5230 Notifier，\u8c03\u7528\u65b9\u6cd5<\/td>\nprovider \u6240\u7ba1\u7406\u7684\u72b6\u6001\u4e0e\u4f9d\u8d56<\/td>\nref.watch \u53ca\u9009\u62e9\u6027\u8ba2\u9605<\/td>\nProviderScope\u3001provider \u751f\u547d\u5468\u671f\u914d\u7f6e\u4e0e\u8ba2\u9605\u5173\u7cfb\u3002<\/td>\n<\/tr>\n
Bloc\/Cubit<\/td>\ncontext.read \u627e\u5230 Cubit，\u8c03\u7528\u65b9\u6cd5；Bloc \u53ef\u53d1\u9001\u4e8b\u4ef6<\/td>\nCubit\/Bloc \u8f93\u51fa\u7684\u72b6\u6001\u5e8f\u5217<\/td>\nBlocBuilder\u3001BlocSelector \u7b49<\/td>\nBlocProvider \u653e\u7f6e\u4f4d\u7f6e；\u7531\u5176\u521b\u5efa\u7684 Bloc\/Cubit \u968f Provider \u5173\u95ed\u3002<\/td>\n<\/tr>\n
GetX<\/td>\nGet.find \u627e\u5230 Controller，\u8c03\u7528\u65b9\u6cd5<\/td>\nController \u4e2d\u7684 Rx \u6216\u624b\u52a8\u66f4\u65b0\u5b57\u6bb5<\/td>\nObx \u6216 GetBuilder<\/td>\n\u6ce8\u518c\u4f4d\u7f6e\u3001Bindings \u548c\u5b9e\u9645\u6e05\u7406\u7b56\u7565；\u5168\u5c40\u6c38\u4e45\u6ce8\u518c\u9700\u663e\u5f0f\u91cd\u7f6e\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd9\u5f20\u8868\u5c55\u793a\u7684\u662f\u5f52\u5c5e\u8def\u5f84，\u4e0d\u662f\u6bcf\u4e2a\u5e93\u552f\u4e00\u7684\u5199\u6cd5\u3002Provider \u53ef\u4ee5\u63d0\u4f9b\u975e ChangeNotifier \u5bf9\u8c61；Bloc \u4e0e Cubit \u7684\u5165\u53e3\u4e5f\u4e0d\u540c；GetX \u80fd\u7528\u54cd\u5e94\u5f0f\u6216\u663e\u5f0f\u66f4\u65b0\u3002\u6846\u67b6\u540d\u79f0\u4e0d\u80fd\u4ee3\u66ff\u4f60\u8bbe\u8ba1\u4f5c\u7528\u57df：\u82e5\u628a\u8d2d\u7269\u8f66\u653e\u5728\u67d0\u4e2a\u5f88\u5feb\u9500\u6bc1\u7684\u8be6\u60c5\u9875\u4f5c\u7528\u57df\u91cc，\u4efb\u4f55\u65b9\u6848\u90fd\u4f1a\u5728\u9875\u9762\u5207\u6362\u540e\u4e22\u72b6\u6001\u3002<\/p>\n

\u5b9e\u9645\u4ee3\u7801\u7ec4\u7ec7\u53ef\u4ee5\u5148\u4fdd\u6301\u540c\u4e00\u5c42\u6b21：<\/p>\n

cart\/
\n cart_repository.dart \u8bf7\u6c42\u62a5\u4ef7\u3001\u63d0\u4ea4\u53d8\u5316
\n cart_state.dart \u6570\u91cf\u3001\u62a5\u4ef7\u72b6\u6001\u3001\u8bf7\u6c42\u7248\u672c
\n cart_owner.dart Notifier \/ Cubit \/ Bloc \/ Controller
\n cart_pages.dart \u5217\u8868\u3001\u8be6\u60c5\u3001\u7ed3\u7b97\u754c\u9762<\/p>\n

cart_owner.dart \u7684\u5b9e\u73b0\u56e0\u6846\u67b6\u800c\u53d8，\u4ed3\u5e93\u534f\u8bae\u4e0e\u4e1a\u52a1\u72b6\u6001\u5c3d\u91cf\u4fdd\u6301\u4e00\u81f4\u3002\u8fd9\u6837\u56e2\u961f\u80fd\u6bd4\u8f83\u72b6\u6001\u5de5\u5177\u672c\u8eab，\u4e5f\u80fd\u628a\u8fc1\u79fb\u5f71\u54cd\u9650\u5236\u5728\u6301\u6709\u8005\u548c\u754c\u9762\u63a5\u7ebf\u5904\u3002\u6587\u4ef6\u540d\u662f\u6559\u5b66\u7528\u7684\u7ec4\u7ec7\u793a\u610f，\u5e76\u975e\u56db\u4e2a\u5e93\u89c4\u5b9a\u7684\u76ee\u5f55\u7ed3\u6784\u3002<\/p>\n

3. \u5f02\u6b65\u62a5\u4ef7\u662f\u6700\u80fd\u66b4\u9732\u5dee\u5f02\u7684\u5730\u65b9\u5417？<\/h3>\n

\u5b83\u66f4\u80fd\u66b4\u9732\u72b6\u6001\u8bbe\u8ba1\u7684\u5dee\u5f02，\u800c\u4e0d\u662f\u67d0\u4e2a\u5e93\u80fd\u5426\u505a\u5f02\u6b65\u3002\u56db\u8005\u90fd\u80fd\u8868\u793a\u52a0\u8f7d\u3001\u6210\u529f\u3001\u5931\u8d25；Riverpod \u6709\u5185\u7f6e\u7684\u5f02\u6b65\u72b6\u6001\u6a21\u578b，\u5176\u4ed6\u65b9\u6848\u901a\u5e38\u5728\u81ea\u5df1\u7684\u72b6\u6001\u5bf9\u8c61\u6216\u54cd\u5e94\u5f0f\u5b57\u6bb5\u91cc\u8868\u8fbe\u3002\u771f\u6b63\u9700\u8981\u7edf\u4e00\u7684\u662f\u8fd9\u6761\u89c4\u5219：\u7ed3\u679c\u53ea\u80fd\u5199\u56de\u53d1\u8d77\u5b83\u65f6\u4ecd\u7136\u6709\u6548\u7684\u90a3\u4efd\u8d2d\u7269\u8f66\u72b6\u6001\u3002<\/p>\n

\u4f8b\u5982\u8d2d\u7269\u8f66\u6570\u91cf\u4ece 1 \u53d8\u6210 2 \u65f6，\u65e7\u8bf7\u6c42\u7684\u62a5\u4ef7\u5373\u4f7f\u66f4\u665a\u8fd4\u56de，\u4e5f\u5e94\u88ab\u53d6\u6d88\u6216\u5ffd\u7565\u3002\u5b9e\u73b0\u53ef\u4ee5\u7ed9\u6bcf\u6b21\u8bf7\u6c42\u5206\u914d\u9012\u589e\u7248\u672c，\u5199\u56de\u524d\u6bd4\u8f83\u5f53\u524d\u7248\u672c；\u4e5f\u53ef\u4ee5\u901a\u8fc7\u53ef\u53d6\u6d88\u8bf7\u6c42\u6216\u6309\u4e1a\u52a1\u8bbe\u8ba1\u6392\u961f\u3002\u9009\u54ea\u4e00\u79cd\u53d6\u51b3\u4e8e\u4ed3\u5e93\u548c\u540e\u7aef\u63a5\u53e3\u3002\u4e0d\u80fd\u671f\u5f85 notifyListeners()\u3001emit()\u3001.obs \u6216 ref.watch() \u81ea\u52a8\u89e3\u51b3\u4e71\u5e8f\u54cd\u5e94\u3002<\/p>\n

\u8d44\u6e90\u91ca\u653e\u4e5f\u7c7b\u4f3c\u3002\u7ed3\u7b97\u9875\u79bb\u5f00\u540e，\u9875\u9762\u4e13\u5c5e\u8bf7\u6c42\u6216\u8ba2\u9605\u9700\u8981\u53d6\u6d88；\u82e5\u5e95\u5c42\u8bf7\u6c42\u4e0d\u80fd\u53d6\u6d88，\u81f3\u5c11\u8981\u9632\u6b62\u65e7\u7ed3\u679c\u66f4\u65b0\u5df2\u7ecf\u5931\u6548\u7684\u72b6\u6001\u3002\u8d2d\u7269\u8f66\u672c\u8eab\u82e5\u5c5e\u4e8e\u767b\u5f55\u4f1a\u8bdd，\u4e0d\u5e94\u968f\u4efb\u610f\u4e00\u4e2a\u9875\u9762\u5173\u95ed\u800c\u6d88\u5931；\u767b\u51fa\u65f6\u518d\u6309\u660e\u786e\u7684\u4f1a\u8bdd\u89c4\u5219\u91cd\u7f6e\u3002<\/p>\n

4. \u600e\u4e48\u6d4b，\u624d\u80fd\u53d1\u73b0\u9009\u578b\u5e26\u6765\u7684\u771f\u5b9e\u6210\u672c？<\/h3>\n

\u7528\u540c\u4e00\u7ec4\u6d4b\u8bd5\u573a\u666f，\u6bd4\u6570\u4ee3\u7801\u884c\u6570\u66f4\u6709\u4ef7\u503c：<\/p>\n

  • \u72b6\u6001\u5355\u6d4b：\u4e24\u6b21\u52a0\u5165\u5546\u54c1\u540e\u6570\u91cf\u4e3a 2；\u4ef7\u683c\u52a0\u8f7d\u4f9d\u6b21\u7ecf\u8fc7\u52a0\u8f7d\u548c\u6210\u529f\u6216\u5931\u8d25\u3002<\/li>\n
  • \u4e71\u5e8f\u6d4b\u8bd5：\u8bf7\u6c42 A \u5bf9\u5e94\u6570\u91cf 1，\u8bf7\u6c42 B \u5bf9\u5e94\u6570\u91cf 2；\u5148\u8fd4\u56de B\u3001\u540e\u8fd4\u56de A，\u6700\u7ec8\u754c\u9762\u4ecd\u5c55\u793a B \u5bf9\u5e94\u7684\u62a5\u4ef7\u3002<\/li>\n
  • Widget \u6d4b\u8bd5：\u5217\u8868\u89d2\u6807\u4e0e\u7ed3\u7b97\u9875\u89c2\u5bdf\u5230\u540c\u4e00\u4efd\u6570\u91cf；\u9519\u8bef\u72b6\u6001\u6709\u91cd\u8bd5\u5165\u53e3\u3002<\/li>\n
  • \u751f\u547d\u5468\u671f\u6d4b\u8bd5：\u79bb\u5f00\u7ed3\u7b97\u9875\u540e，\u9875\u9762\u4e13\u5c5e\u8d44\u6e90\u88ab\u6e05\u7406；\u767b\u51fa\u540e\u4e0d\u4f1a\u663e\u793a\u65e7\u7528\u6237\u8d2d\u7269\u8f66\u3002<\/li>\n

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