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final response = await dio.get('\/user');\n\nsetState(() {\n  user = response.data;\n});\n<\/code><\/pre>\n
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    \n
  1. \n
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  2. \n
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  3. \n
    API \u063a\u06cc\u0631 \u0645\u062a\u0648\u0642\u0639 \u0688\u06cc\u0679\u0627 \u0648\u0627\u067e\u0633 \u06a9\u0631\u062a\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u0631\u0646 \u0679\u0627\u0626\u0645 \u067e\u0631 \u06a9\u0627\u0633\u0679 \u06a9\u0627 \u0633\u0628\u0628 \u0628\u0646\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n<\/li>\n
  4. \n
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    Future loadUser(String userId) async {\n  setState(() {\n    isLoading = true;\n    error = null;\n  });\n\n  try {\n    final response = await dio.get('\/user\/$userId');\n\n    \/\/ mounted checks whether this widget is still in the widget tree.\n    \/\/ If the user navigated away while the request was running,\n    \/\/ mounted is false. Calling setState on a disposed widget throws\n    \/\/ an error \u2014 this one line prevents that entire class of crash.\n    if (!mounted) return;\n\n    setState(() {\n      user = User.fromJson(response.data as Map);\n      isLoading = false;\n    });\n  } on DioException catch (e) {\n    if (!mounted) return;\n\n    setState(() {\n      \/\/ Give the user a message that is actually useful.\n      \/\/ \"Something went wrong\" is not helpful. Knowing whether\n      \/\/ they have no internet vs the server failed lets them\n      \/\/ decide whether to move or wait.\n      error = e.type == DioExceptionType.connectionError\n          ? 'No internet connection. Please try again.'\n          : 'Failed to load profile. Please try again.';\n      isLoading = false;\n    });\n  }\n}\n<\/string><\/void><\/code><\/pre>\n
    \u062a\u06cc\u0646 \u0631\u06cc\u0627\u0633\u062a\u0648\u06ba \u0645\u06cc\u06ba \u06c1\u0631 \u0627\u0633\u06a9\u0631\u06cc\u0646 \u06a9\u06cc \u0636\u0631\u0648\u0631\u062a \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u06d4<\/h3>\n
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    @override\nWidget build(BuildContext context) {\n  \/\/ Loading: never leave users staring at a blank screen.\n  \/\/ A spinner tells them something is happening.\n  if (isLoading) {\n    return const Center(child: CircularProgressIndicator());\n  }\n\n  \/\/ Error: show what went wrong and how to recover.\n  \/\/ A dead end with no retry button is one of the most\n  \/\/ frustrating things a user can experience.\n  if (error != null) {\n    return Center(\n      child: Column(\n        mainAxisSize: MainAxisSize.min,\n        children: [\n          Text(error!, style: const TextStyle(color: Colors.red)),\n          const SizedBox(height: 16),\n          ElevatedButton(\n            onPressed: () => loadUser(widget.userId),\n            child: const Text('Try again'),\n          ),\n        ],\n      ),\n    );\n  }\n\n  \/\/ Success: show the data.\n  return UserProfileView(user: user!);\n}\n<\/code><\/pre>\n
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    \u062f\u0648\u0628\u0627\u0631\u06c1 \u06a9\u0648\u0634\u0634 \u06a9\u06cc \u0645\u0646\u0637\u0642 \u06a9\u06d2 \u0628\u063a\u06cc\u0631\u060c \u0646\u06cc\u0679 \u0648\u0631\u06a9 \u06a9\u06cc \u06a9\u0648\u0626\u06cc \u0628\u06be\u06cc \u0639\u0627\u0631\u0636\u06cc \u063a\u0644\u0637\u06cc \u0635\u0627\u0631\u0641 \u06a9\u06d2 \u0646\u0642\u0637\u06c1 \u0646\u0638\u0631 \u0633\u06d2 \u0627\u06cc\u06a9 \u0645\u0633\u062a\u0642\u0644 \u063a\u0644\u0637\u06cc \u06c1\u06d2\u06d4 \u06cc\u06c1 \u0627\u06cc\u06a9 \u0628\u0631\u06cc \u0688\u06cc\u0644 \u06c1\u06d2\u06d4<\/p>\n
    Future withRetry(\n  Future Function() request, {\n  int maxAttempts = 3,\n  Duration delay = const Duration(seconds: 1),\n}) async {\n  for (int i = 0; i < maxAttempts; i++) {\n    try {\n      return await request();\n    } catch (e) {\n      \/\/ On the final attempt, stop retrying and let the\n      \/\/ error propagate to the caller.\n      if (i == maxAttempts - 1) rethrow;\n\n      \/\/ Wait before trying again. This gives temporary network\n      \/\/ issues time to resolve and avoids hammering a server\n      \/\/ that might already be struggling.\n      await Future.delayed(delay);\n    }\n  }\n\n  throw Exception('Retry failed');\n}\n<\/t><\/t><\/t><\/code><\/pre>\n
    \u06cc\u06c1 \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u0646\u0627 \u0622\u0633\u0627\u0646 \u06c1\u06d2\u06d4<\/p>\n
    final user = await withRetry(\n  () => dio.get('\/user\/$userId'),\n  maxAttempts: 3,\n  delay: const Duration(seconds: 2),\n);\n<\/code><\/pre>\n
    \u06c1\u0627\u0626\u06cc \u0679\u0631\u06cc\u0641\u06a9 \u067e\u0631\u0648\u0688\u06a9\u0634\u0646 \u0627\u06cc\u067e\u0633 \u06a9\u06d2 \u0644\u06cc\u06d2\u060c \u062f\u06cc\u06a9\u06be\u06cc\u06ba: dio_smart_retry<\/code>. \u06cc\u06c1 \u0627\u06cc\u06a9\u0633\u067e\u0648\u0646\u06cc\u0646\u0634\u0644 \u0628\u06cc\u06a9 \u0622\u0641 \u06a9\u0648 \u0644\u0627\u06af\u0648 \u06a9\u0631\u062a\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u06c1\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u06a9\u0648\u0634\u0634 \u06a9\u06d2 \u062f\u0631\u0645\u06cc\u0627\u0646 \u062a\u0627\u062e\u06cc\u0631 \u06a9\u0648 \u062f\u0648\u06af\u0646\u0627 \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u060c \u062c\u0633 \u0633\u06d2 \u0627\u0635\u0644 \u0628\u0646\u062f\u0634 \u06a9\u06cc \u0635\u0648\u0631\u062a \u0645\u06cc\u06ba \u0633\u0631\u0648\u0631 \u06a9\u0627 \u0628\u0648\u062c\u06be \u0628\u06c1\u062a \u0632\u06cc\u0627\u062f\u06c1 \u0645\u062f\u0646\u0638\u0631 \u0631\u06a9\u06be\u0627 \u062c\u0627\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n
    \u0622\u0641 \u0644\u0627\u0626\u0646 \u0633\u067e\u0648\u0631\u0679 \u0627\u0648\u0631 \u0645\u0642\u0627\u0645\u06cc \u0627\u0633\u062a\u0642\u0627\u0645\u062a<\/h2>\n
    \u0634\u0631\u0645\u0646\u0627\u06a9 \u0633\u067e\u0648\u0631\u0679 \u0679\u06a9\u0679 \u062d\u0627\u0635\u0644 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0628\u0639\u062f\u060c \u0645\u06cc\u06ba \u0646\u06d2 \u0622\u0641 \u0644\u0627\u0626\u0646 \u0633\u067e\u0648\u0631\u0679 \u06a9\u0648 \u0633\u0646\u062c\u06cc\u062f\u06af\u06cc \u0633\u06d2 \u0644\u06cc\u0646\u0627 \u0633\u06cc\u06a9\u06be\u0627\u06d4 \u0635\u0627\u0631\u0641 \u0646\u06d2 \u0627\u06cc\u06a9 \u0644\u0645\u0628\u0627 \u0622\u0646 \u0628\u0648\u0631\u0688\u0646\u06af \u0641\u0627\u0631\u0645 (15 \u0641\u06cc\u0644\u0688\u0632) \u067e\u064f\u0631 \u06a9\u06cc\u0627 \u062c\u0633 \u0645\u06cc\u06ba \u06a9\u0626\u06cc \u0645\u0646\u0679 \u0644\u06af\u06d2 \u0627\u0648\u0631 \u06a9\u0646\u06a9\u0634\u0646 \u063a\u06cc\u0631 \u0645\u0633\u062a\u062d\u06a9\u0645 \u06c1\u0648\u0646\u06d2 \u067e\u0631 \u062c\u0645\u0639 \u06a9\u0631\u0648\u0627\u06cc\u0627\u06d4 \u0622\u067e \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0646\u0627\u06a9\u0627\u0645 \u06c1\u0648\u06af\u0626\u06cc\u06d4 \u0641\u0627\u0631\u0645 \u0635\u0627\u0641 \u06c1\u0648 \u06af\u06cc\u0627 \u06c1\u06d2\u06d4 \u062a\u0645\u0627\u0645 \u0688\u06cc\u0679\u0627 \u063a\u0627\u0626\u0628 \u06c1\u06d2\u06d4 \u0648\u06c1 \u0646\u0627\u0631\u0627\u0636 \u062a\u06be\u06d2\u060c \u0627\u0648\u0631 \u0648\u0627\u0636\u062d \u0637\u0648\u0631 \u067e\u0631\u060c \u0627\u0646\u06c1\u06cc\u06ba \u06c1\u0648\u0646\u06d2 \u06a9\u0627 \u067e\u0648\u0631\u0627 \u062d\u0642 \u062a\u06be\u0627.<\/p>\n
    \u0622\u0641 \u0644\u0627\u0626\u0646 \u0633\u067e\u0648\u0631\u0679 \u06a9\u0627 \u0645\u0642\u0635\u062f \u0627\u0646\u0679\u0631\u0646\u06cc\u0679 \u06a9\u06d2 \u0628\u063a\u06cc\u0631 \u062a\u0645\u0627\u0645 \u0641\u0639\u0627\u0644\u06cc\u062a \u06a9\u0648 \u0646\u0642\u0644 \u06a9\u0631\u0646\u0627 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4 \u06cc\u06c1 \u0627\u0633 \u0628\u0627\u062a \u06a9\u0648 \u06cc\u0642\u06cc\u0646\u06cc \u0628\u0646\u0627\u0646\u06d2 \u06a9\u06d2 \u0644\u06cc\u06d2 \u06c1\u06d2 \u06a9\u06c1 \u0635\u0627\u0631\u0641\u06cc\u0646 \u062a\u0631\u0642\u06cc \u0633\u06d2 \u0645\u062d\u0631\u0648\u0645 \u0646\u06c1 \u06c1\u0648\u06ba \u0627\u0648\u0631 \u0688\u06cc\u0688 \u0627\u06cc\u0646\u0688\u0632 \u06a9\u0648 \u0646\u06c1 \u0645\u0627\u0631\u06cc\u06ba\u06d4<\/p>\n
    \u0631\u06cc\u0645\u0648\u0679 \u0688\u06cc\u0679\u0627 \u06a9\u06cc\u0634\u0646\u06af<\/h3>\n
    \u06cc\u06c1\u0627\u06ba \u06a9\u06cc \u062d\u06a9\u0645\u062a \u0639\u0645\u0644\u06cc \u0633\u0627\u062f\u06c1 \u06c1\u06d2\u06d4 \u062c\u0628 \u0628\u06be\u06cc \u0646\u06cc\u0679 \u0648\u0631\u06a9 \u06a9\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0627\u0645\u06cc\u0627\u0628 \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u060c \u06c1\u0645 \u0646\u062a\u0627\u0626\u062c \u06a9\u0648 \u0645\u0642\u0627\u0645\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0627\u0633\u0679\u0648\u0631 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 \u067e\u06be\u0631\u060c \u0627\u06af\u0631 \u0627\u06af\u0644\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0646\u0627\u06a9\u0627\u0645 \u06c1\u0648 \u062c\u0627\u062a\u06cc \u06c1\u06d2\u060c \u062a\u0648 \u06cc\u06c1 \u0622\u067e \u06a9\u0648 \u0648\u06c1 \u0686\u06cc\u0632 \u062f\u06cc\u062a\u06cc \u06c1\u06d2 \u062c\u0648 \u0622\u067e \u0646\u06d2 \u067e\u0686\u06be\u0644\u06cc \u0628\u0627\u0631 \u0627\u06cc\u06a9 \u0627\u06cc\u0631\u0631 \u0627\u0633\u06a9\u0631\u06cc\u0646 \u062f\u06a9\u06be\u0627\u0646\u06d2 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2 \u0645\u062d\u0641\u0648\u0638 \u06a9\u06cc \u062a\u06be\u06cc\u06d4<\/p>\n
    class UserRepository {\n  final Dio _dio;\n  final Box _cache; \/\/ Hive box\n\n  UserRepository(this._dio, this._cache);\n\n  Future getUser(String userId) async {\n    try {\n      final response = await _dio.get('\/user\/$userId');\n      final user = User.fromJson(response.data as Map);\n\n      \/\/ Save fresh data to the cache every time a request succeeds.\n      \/\/ This means the next request can fall back to this\n      \/\/ if the network is unavailable.\n      await _cache.put('user_$userId', user.toJson());\n\n      return user;\n    } catch (e) {\n      \/\/ Network failed. See if we have something cached.\n      final cached = _cache.get('user_$userId');\n\n      if (cached != null) {\n        \/\/ Stale data is better than an error screen.\n        \/\/ The user sees something useful even without internet.\n        return User.fromJson(Map.from(cached));\n      }\n\n      \/\/ Nothing cached. We have no choice but to surface the error.\n      rethrow;\n    }\n  }\n}\n<\/string><\/string><\/user><\/code><\/pre>\n
    \u0635\u0627\u0631\u0641 \u06a9\u06d2 \u0627\u0646 \u067e\u0679 \u06a9\u0648 \u0645\u062d\u0641\u0648\u0638 \u06a9\u0631\u06cc\u06ba\u06d4<\/h3>\n
    \u0622\u0646 \u0628\u0648\u0631\u0688\u0646\u06af \u0679\u06a9\u0679 \u06a9\u06cc \u0627\u0635\u0644\u0627\u062d\u0627\u062a \u06cc\u06c1 \u06c1\u06cc\u06ba \u062c\u0646 \u06a9\u0627 \u0645\u06cc\u06ba \u0646\u06d2 \u0630\u06a9\u0631 \u06a9\u06cc\u0627 \u06c1\u06d2:<\/p>\n
    \/\/ Save whatever the user has typed whenever the field changes.\n_contentController.addListener(() async {\n  await _cache.put('draft_post', _contentController.text);\n});\n\n\/\/ When the screen opens, restore any saved draft.\n@override\nvoid initState() {\n  super.initState();\n  final draft = _cache.get('draft_post') as String?;\n  if (draft != null && draft.isNotEmpty) {\n    _contentController.text = draft;\n  }\n}\n\n\/\/ Clear the draft once the user successfully submits.\nFuture _submit() async {\n  await _repository.createPost(_contentController.text);\n  await _cache.delete('draft_post');\n}\n<\/void><\/code><\/pre>\n
    \u06a9\u0648\u0688 \u06a9\u06cc \u062a\u06cc\u0646 \u0644\u0627\u0626\u0646\u06cc\u06ba \u062c\u0648 \u0635\u0627\u0631\u0641\u06cc\u0646 \u06a9\u0648 \u0627\u067e\u0646\u0627 \u06a9\u0627\u0645 \u06a9\u06be\u0648\u0646\u06d2 \u0633\u06d2 \u0628\u0686\u0627\u062a\u06cc \u06c1\u06cc\u06ba\u06d4 \u06a9\u0648\u0626\u06cc \u0628\u06be\u06cc \u0641\u0627\u0631\u0645 \u062c\u0633\u06d2 \u067e\u064f\u0631 \u06a9\u0631\u0646\u06d2 \u0645\u06cc\u06ba \u0627\u06cc\u06a9 \u0645\u0646\u0679 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0648\u0642\u062a \u0644\u06af\u062a\u0627 \u06c1\u06d2 \u06a9\u0631\u0646\u06d2 \u06a9\u06d2 \u0642\u0627\u0628\u0644 \u06c1\u06d2\u06d4<\/p>\n
    \u0645\u0642\u0627\u0645\u06cc \u0627\u0633\u062a\u0642\u0627\u0645\u062a \u06a9\u06d2 \u0644\u06cc\u06d2 \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06c1\u0648\u0646\u06d2 \u0648\u0627\u0644\u06d2 \u067e\u06cc\u06a9\u06cc\u062c\u0632:<\/p>\n
      \n
    1. \n
      \u0686\u06be\u062a\u06c1<\/strong> \u0633\u0627\u062f\u06c1 \u06a9\u0644\u06cc\u062f\u06cc \u0642\u062f\u0631 \u0627\u0633\u0679\u0648\u0631\u06cc\u062c \u06a9\u06d2 \u0644\u06cc\u06d2<\/p>\n<\/li>\n
    2. \n
      \u0627\u06cc\u062b\u0627\u0631<\/strong> \u062c\u0628 \u0622\u067e \u06a9\u0648 \u0632\u06cc\u0627\u062f\u06c1 \u0637\u0627\u0642\u062a\u0648\u0631 \u0633\u0648\u0627\u0644\u0627\u062a \u06a9\u06cc \u0636\u0631\u0648\u0631\u062a \u06c1\u0648\u06d4<\/p>\n<\/li>\n
    3. \n
      \u0645\u0631\u0628\u0639 \u0641\u0644\u0627\u0626\u0679<\/strong> \u0645\u062a\u0639\u0644\u0642\u06c1 \u0688\u06cc\u0679\u0627 \u06a9\u06d2 \u0644\u06cc\u06d2<\/p>\n<\/li>\n
    4. \n
      \u0645\u0634\u062a\u0631\u06a9\u06c1_\u062a\u0631\u062c\u06cc\u062d\u0627\u062a<\/strong> \u06cc\u06c1 \u0635\u0631\u0641 \u0635\u0627\u0631\u0641 \u06a9\u06cc \u062a\u0631\u062a\u06cc\u0628\u0627\u062a \u067e\u0631 \u0644\u0627\u06af\u0648 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u060c \u0627\u06c1\u0645 \u0645\u0648\u0627\u062f \u067e\u0631 \u0646\u06c1\u06cc\u06ba\u06d4<\/p>\n<\/li>\n<\/ol>\n
      \u0628\u0691\u06d2 \u067e\u06cc\u0645\u0627\u0646\u06d2 \u067e\u0631 \u0631\u06cc\u0627\u0633\u062a\u06cc \u0627\u0646\u062a\u0638\u0627\u0645<\/h2>\n
      setState<\/code>    \u062a\u0645 \u0679\u06be\u06cc\u06a9 \u06c1\u0648\u061f \u0645\u06cc\u06ba \u06cc\u06c1 \u0648\u0627\u0636\u062d \u06a9\u0631\u0646\u0627 \u0686\u0627\u06c1\u062a\u0627 \u06c1\u0648\u06ba \u06a9\u06cc\u0648\u0646\u06a9\u06c1 \u0641\u0644\u0679\u0631 \u06a9\u0645\u06cc\u0648\u0646\u0679\u06cc \u0645\u06cc\u06ba \u0627\u0633 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0627\u06cc\u0633\u0627 \u0633\u0644\u0648\u06a9 \u06a9\u0631\u0646\u06d2 \u06a9\u0627 \u0631\u062c\u062d\u0627\u0646 \u06c1\u06d2 \u062c\u06cc\u0633\u06d2 \u06cc\u06c1 \u06c1\u0645\u06cc\u0634\u06c1 \u063a\u0644\u0637 \u06c1\u06d2\u06d4 \u0645\u0642\u0627\u0645\u06cc\u060c \u0633\u0627\u062f\u06c1 UI \u0631\u06cc\u0627\u0633\u062a\u0648\u06ba \u06a9\u06d2 \u0644\u06cc\u06d2 (\u0628\u0679\u0646 \u0679\u0648\u06af\u0644\u0632\u060c \u0641\u0627\u0631\u0645 \u0641\u06cc\u0644\u0688\u0632 \u062c\u0648 \u062a\u0648\u062b\u06cc\u0642 \u062f\u06a9\u06be\u0627 \u0631\u06c1\u06d2 \u06c1\u06cc\u06ba) setState<\/code> \u06cc\u06c1 \u0628\u0627\u0644\u06a9\u0644 \u0635\u062d\u06cc\u062d \u0679\u0648\u0644 \u06c1\u06d2\u06d4<\/p>\n
      \u0645\u0633\u0626\u0644\u06c1 \u0627\u0633 \u0648\u0642\u062a \u0634\u0631\u0648\u0639 \u06c1\u0648\u062a\u0627 \u06c1\u06d2 \u062c\u0628 \u0622\u067e \u0627\u0633\u06d2 \u0627\u0633 \u062d\u0627\u0644\u062a \u06a9\u06d2 \u0644\u06cc\u06d2 \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba \u06a9\u06c1 \u0645\u062a\u0639\u062f\u062f \u0648\u06cc\u062c\u0679\u0633 \u067e\u0631 \u0627\u0646\u062d\u0635\u0627\u0631 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba\u060c \u063a\u06cc\u0631 \u0645\u0637\u0627\u0628\u0642\u062a \u067e\u0630\u06cc\u0631 \u0622\u067e\u0631\u06cc\u0634\u0646\u0632\u060c \u06cc\u0627 \u06a9\u0633\u06cc \u0628\u06be\u06cc \u0627\u06cc\u0633\u06cc \u0686\u06cc\u0632 \u06a9\u0648 \u062c\u0648 \u0646\u06cc\u0648\u06cc\u06af\u06cc\u0634\u0646 \u06a9\u0648 \u0632\u0646\u062f\u06c1 \u0631\u06c1\u0646\u06d2 \u06a9\u06cc \u0636\u0631\u0648\u0631\u062a \u06c1\u06d2\u06d4 \u0645\u06cc\u06ba \u0646\u06d2 \u06cc\u06c1 \u0633\u0628 \u06a9\u06cc\u0627 \u06c1\u06d2\u06d4 \u0645\u0633\u0626\u0644\u06c1 \u06cc\u06c1 \u06c1\u06d2:<\/p>\n
      \/\/ This setState call lives high in the widget tree.\n\/\/ Every widget below it rebuilds \u2014 including expensive ones\n\/\/ that have nothing to do with this state change.\nsetState(() {\n  currentUser = updatedUser;\n});\n<\/code><\/pre>\n
      \u0627\u06cc\u067e \u06a9\u06d2 \u0628\u0691\u06be\u0646\u06d2 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u06c1\u06cc \u0635\u0648\u0631\u062a\u062d\u0627\u0644 \u0645\u0632\u06cc\u062f \u062e\u0631\u0627\u0628 \u06c1\u0648\u062a\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06d2\u06d4 \u067e\u06be\u06cc\u0644\u0627\u0624 \u06a9\u0648 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0645\u0646\u0638\u0645 \u06a9\u0631\u06cc\u06ba\u06d4 \u0636\u0645\u0646\u06cc \u0627\u062b\u0631\u0627\u062a \u063a\u06cc\u0631 \u0645\u062a\u0648\u0642\u0639 \u062a\u0631\u062a\u06cc\u0628 \u0645\u06cc\u06ba \u06c1\u0648\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 \u0622\u067e \u0641\u0639\u0627\u0644\u06cc\u062a \u06a9\u0648 \u0628\u0646\u0627\u0646\u06d2 \u06a9\u06d2 \u0628\u062c\u0627\u0626\u06d2 \u0688\u06cc\u0628\u06af\u0646\u06af \u0645\u06cc\u06ba \u0632\u06cc\u0627\u062f\u06c1 \u0648\u0642\u062a \u06af\u0632\u0627\u0631\u0646\u0627 \u0634\u0631\u0648\u0639 \u06a9\u0631 \u062f\u06cc\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/p>\n
      \u0631\u06cc\u0648\u0631 \u0641\u0648\u0631\u0688 \u067e\u0631 \u062c\u0627\u0626\u06cc\u06ba\u06d4<\/h3>\n
      \u0627\u067e\u0646\u06cc \u062f\u0648\u0633\u0631\u06cc \u0627\u06cc\u067e \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0627\u0633 \u062f\u06cc\u0648\u0627\u0631 \u06a9\u0648 \u0679\u06a9\u0631\u0627\u0646\u06d2 \u06a9\u06d2 \u0628\u0639\u062f\u060c \u0645\u06cc\u06ba \u0646\u06d2 \u0631\u06cc\u0648\u0631 \u067e\u0648\u0688 \u067e\u0631 \u0633\u0648\u0626\u0686 \u06a9\u06cc\u0627 \u0627\u0648\u0631 \u06a9\u0628\u06be\u06cc \u067e\u06cc\u0686\u06be\u06d2 \u0645\u0691 \u06a9\u0631 \u0646\u06c1\u06cc\u06ba \u062f\u06cc\u06a9\u06be\u0627\u06d4 \u0628\u0646\u06cc\u0627\u062f\u06cc \u062e\u06cc\u0627\u0644 \u0633\u0627\u062f\u06c1 \u06c1\u06d2\u06d4 \u0631\u06cc\u0627\u0633\u062a \u0648\u06cc\u062c\u06cc\u0679 \u06a9\u06d2 \u0628\u0627\u06c1\u0631 \u0645\u0648\u062c\u0648\u062f \u06c1\u06d2\u060c \u0627\u0648\u0631 \u0648\u06cc\u062c\u06cc\u0679 \u0628\u0627\u0644\u06a9\u0644 \u0627\u0633\u06cc \u0631\u06cc\u0627\u0633\u062a \u06a9\u0648 \u0633\u0628\u0633\u06a9\u0631\u0627\u0626\u0628 \u06a9\u0631\u062a\u0627 \u06c1\u06d2 \u062c\u0633 \u06a9\u06cc \u0627\u0633\u06d2 \u0636\u0631\u0648\u0631\u062a \u06c1\u06d2\u06d4<\/p>\n
      @riverpod\nclass UserNotifier extends _$UserNotifier {\n  @override\n  AsyncValue build(String userId) {\n    _load();\n    return const AsyncValue.loading();\n  }\n\n  Future _load() async {\n    state = const AsyncValue.loading();\n\n    \/\/ AsyncValue.guard runs the future and wraps the result\n    \/\/ in AsyncValue.data on success or AsyncValue.error on failure.\n    \/\/ It saves you from writing try\/catch every single time.\n    state = await AsyncValue.guard(\n      () => ref.read(userRepositoryProvider).getUser(userId),\n    );\n  }\n\n  Future refresh() => _load();\n}\n<\/void><\/void><\/user><\/code><\/pre>\n
      \u0648\u06cc\u062c\u06cc\u0679 \u0645\u06cc\u06ba:<\/p>\n
      @override\nWidget build(BuildContext context) {\n  \/\/ ref.watch subscribes this widget to the notifier.\n  \/\/ It rebuilds only when userAsync changes \u2014 not when\n  \/\/ unrelated state elsewhere in the app changes.\n  final userAsync = ref.watch(userNotifierProvider(widget.userId));\n\n  return userAsync.when(\n    \/\/ when() forces you to handle loading, error, and data.\n    \/\/ Miss one and it's a compile error, not a runtime surprise.\n    loading: () => const CircularProgressIndicator(),\n    error: (e, _) => Text('Error: $e'),\n    data: (user) => UserProfileView(user: user),\n  );\n}\n<\/code><\/pre>\n
      \u062c\u0633 \u06a9\u06d2 \u0644\u06cc\u06d2 \u0645\u06cc\u06ba \u0633\u0628 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0634\u06a9\u0631 \u06af\u0632\u0627\u0631 \u06c1\u0648\u06ba: when()<\/code> \u0644\u0648\u0688 \u06cc\u0627 \u062e\u0631\u0627\u0628\u06cc \u06a9\u06cc \u0634\u0631\u0627\u0626\u0637 \u06a9\u0648 \u0628\u06be\u0648\u0644\u0646\u06d2 \u06a9\u06d2 \u0646\u062a\u06cc\u062c\u06d2 \u0645\u06cc\u06ba \u062a\u0627\u0644\u06cc\u0641 \u06a9\u06cc \u063a\u0644\u0637\u06cc\u0627\u06ba \u06c1\u0648\u06ba \u06af\u06cc\u06d4 \u06a9\u0645\u067e\u0627\u0626\u0644\u0631 \u06a9\u0633\u06cc \u0627\u06cc\u0633\u06cc \u0686\u06cc\u0632 \u06a9\u0648 \u0646\u0627\u0641\u0630 \u06a9\u0631\u062a\u0627 \u06c1\u06d2 \u062c\u0633\u06d2 \u0645\u06cc\u06ba \u0628\u06be\u0648\u0644 \u062c\u0627\u062a\u0627 \u062a\u06be\u0627\u06d4<\/p>\n
      \u0646\u0627\u0642\u0627\u0628\u0644 \u062a\u063a\u06cc\u0631 \u062d\u0627\u0644\u062a<\/h3>\n
      \u0644\u0627\u0626\u06cc\u0648 \u0686\u06cc\u0679 \u06a9\u06cc \u062e\u0635\u0648\u0635\u06cc\u062a \u06a9\u06d2 \u0628\u0627\u0631\u06d2 \u0645\u06cc\u06ba \u0645\u062c\u06be\u06d2 \u067e\u0631\u06cc\u0634\u0627\u0646 \u06a9\u0631\u0646\u06d2 \u0648\u0627\u0644\u06cc \u0686\u06cc\u0632\u0648\u06ba \u0645\u06cc\u06ba \u0633\u06d2 \u0627\u06cc\u06a9 \u0627\u06cc\u067e \u06a9\u06d2 \u0645\u062e\u062a\u0644\u0641 \u062d\u0635\u0648\u06ba \u06a9\u06d2 \u062f\u0631\u0645\u06cc\u0627\u0646 \u0634\u06cc\u0626\u0631 \u06a9\u06cc \u062c\u0627\u0646\u06d2 \u0648\u0627\u0644\u06cc \u062a\u0628\u062f\u06cc\u0644\u06cc \u06a9\u06cc \u0641\u06c1\u0631\u0633\u062a \u062a\u06be\u06cc\u06d4<\/p>\n
      List messages = [];\n\n\/\/ Later, in different places:\nmessages.add(newMessage);       \/\/ socket handler\nmessages.removeAt(0);          \/\/ pagination\nmessages.insert(0, pinned);    \/\/ push notification handler\n<\/message><\/code><\/pre>\n
      \u06cc\u06c1 \u0627\u06cc\u06a9 \u062d\u0642\u06cc\u0642\u06cc \u062a\u06a9\u0644\u06cc\u0641 \u062a\u06be\u06cc \u06a9\u06c1 \u0627\u0633 \u0628\u0627\u062a \u06a9\u0627 \u0633\u0631\u0627\u063a \u0644\u06af\u0627\u0646\u0627 \u06a9\u06c1 \u06a9\u0633 \u062a\u0628\u062f\u06cc\u0644\u06cc \u06a9\u06cc \u0648\u062c\u06c1 \u0633\u06d2 \u06cc\u06c1 \u067e\u06cc\u063a\u0627\u0645 \u0622\u06cc\u0627 \u062c\u0628 \u06cc\u06c1 \u062f\u0648 \u0628\u0627\u0631 \u0638\u0627\u06c1\u0631 \u06c1\u0648 \u06af\u0627 \u06cc\u0627 \u062a\u0635\u0627\u062f\u0641\u06cc \u0637\u0648\u0631 \u067e\u0631 \u063a\u0627\u0626\u0628 \u06c1\u0648 \u062c\u0627\u0626\u06d2 \u06af\u0627\u06d4 \u0627\u0633 \u06a9\u0627 \u062d\u0644 \u06cc\u06c1 \u06c1\u06d2 \u06a9\u06c1 \u0627\u0633\u06d2 \u06a9\u0628\u06be\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0646\u06c1 \u06a9\u0631\u06cc\u06ba \u0627\u0648\u0631 \u06c1\u0645\u06cc\u0634\u06c1 \u0627\u06cc\u06a9 \u0646\u0626\u06cc \u0641\u06c1\u0631\u0633\u062a \u0628\u0646\u0627\u0626\u06cc\u06ba\u06d4<\/p>\n
      \/\/ The old list is unchanged. The new state is a new list.\n\/\/ Every change is explicit and traceable.\nstate = [...state, newMessage];\n<\/code><\/pre>\n
      \u06cc\u06c1 \u0627\u06cc\u06a9 \u0686\u06be\u0648\u0679\u06d2 \u0633\u06d2 \u06a9\u0627\u0645 \u06a9\u06cc \u0637\u0631\u062d \u0645\u062d\u0633\u0648\u0633 \u06c1\u0648\u062a\u0627 \u06c1\u06d2 \u062c\u0628 \u062a\u06a9 \u06a9\u06c1 \u0622\u067e \u0645\u06cc\u0648\u0679\u06cc\u0634\u0646 \u0628\u06af \u06a9\u0648 \u0688\u06cc\u0628\u06af \u06a9\u0631\u0646\u06d2 \u0645\u06cc\u06ba \u062f\u0648 \u06af\u06be\u0646\u0679\u06d2 \u0646\u06c1 \u06af\u0632\u0627\u0631\u06cc\u06ba\u06d4 \u062a\u0628 \u06cc\u06c1 \u0628\u06c1\u062a \u0627\u06c1\u0645 \u0645\u062d\u0633\u0648\u0633 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n
      \u067e\u06be\u0691\u067e\u06be\u0691\u0627\u0646\u0627 \u062a\u06cc\u0632 \u06c1\u06d2\u06d4 \u0644\u06cc\u06a9\u0646 \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0639\u0645\u06cc\u0631\u0627\u062a \u06a9\u0627 \u0688\u06be\u06cc\u0631 \u0644\u06af \u062c\u0627\u062a\u0627 \u06c1\u06d2\u060c \u0627\u0648\u0631 \u06a9\u0645 \u062f\u0631\u062c\u06d2 \u06a9\u06d2 \u0622\u0644\u0627\u062a \u067e\u0631\u060c \u062a\u0639\u0645\u06cc\u0631 \u0646\u0645\u0627\u06cc\u0627\u06ba \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u06d4<\/p>\n
      Const \u0648\u06cc\u062c\u0679 \u0645\u06a9\u0645\u0644 \u0637\u0648\u0631 \u067e\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0639\u0645\u06cc\u0631 \u06a9\u0648 \u0686\u06be\u0648\u0691 \u062f\u06cc\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/h3>\n
      \u06a9\u06c1 const<\/code> \u06a9\u0644\u06cc\u062f\u06cc \u0644\u0641\u0638 \u0688\u0627\u0631\u0679 \u06a9\u0648 \u0628\u062a\u0627\u062a\u0627 \u06c1\u06d2 \u06a9\u06c1 \u06cc\u06c1 \u0648\u06cc\u062c\u06cc\u0679 \u0645\u0631\u062a\u0628 \u0648\u0642\u062a \u067e\u0631 \u0628\u0646\u0627\u06cc\u0627 \u06af\u06cc\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u0627\u0633\u06d2 \u063a\u06cc\u0631 \u0645\u0639\u06cc\u0646\u06c1 \u0645\u062f\u062a \u062a\u06a9 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u06cc\u0627 \u062c\u0627 \u0633\u06a9\u062a\u0627 \u06c1\u06d2\u06d4 \u06a9\u0648\u0626\u06cc \u0628\u06be\u06cc \u0648\u06cc\u062c\u06cc\u0679 \u062c\u0633 \u06a9\u0627 \u0645\u0648\u0627\u062f \u06a9\u0628\u06be\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0646\u06c1\u06cc\u06ba \u06c1\u0648\u062a\u0627 \u0648\u06c1 \u0627\u0645\u06cc\u062f\u0648\u0627\u0631 \u06c1\u06d2\u06d4<\/p>\n
      \/\/ Without const: a new Text instance is created on every\n\/\/ rebuild of the parent, even though the content never changes.\nText('Welcome to the app')\n\n\/\/ With const: Flutter reuses the same instance.\n\/\/ No rebuild work, no allocation.\nconst Text('Welcome to the app')\n<\/code><\/pre>\n
      \u06cc\u06c1 \u0627\u06cc\u06a9 \u0686\u06be\u0648\u0679\u06cc \u0633\u06cc \u0628\u0627\u062a \u0644\u06af\u062a\u06cc \u06c1\u06d2\u06d4 \u0628\u06c1\u062a \u0633\u06d2 \u062c\u0627\u0645\u062f \u0639\u0646\u0627\u0635\u0631 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0628\u0691\u06d2 \u0648\u06cc\u062c\u06cc\u0679 \u062f\u0631\u062e\u062a\u0648\u06ba \u0645\u06cc\u06ba\u060c \u0645\u062c\u0645\u0648\u0639\u06cc \u0627\u062b\u0631 \u0648\u0627\u0642\u0639\u06cc \u06a9\u0627\u0645 \u0645\u06cc\u06ba \u0622\u062a\u0627 \u06c1\u06d2\u06d4 \u0627\u0633\u06d2 \u0639\u0627\u062f\u062a \u0628\u0646\u0627\u0626\u06cc\u06ba\u06d4<\/p>\n
      \u062a\u0639\u0645\u06cc\u0631 \u0646\u0648 \u06a9\u0627 \u062f\u0627\u0626\u0631\u06c1 \u0686\u06be\u0648\u0679\u0627 \u0631\u06a9\u06be\u06cc\u06ba<\/h3>\n
      \u062c\u0628 setState<\/code> \u06cc\u06c1 \u0648\u06cc\u062c\u06cc\u0679 \u06a9\u06d2 \u062f\u0631\u062e\u062a \u06a9\u06d2 \u0627\u0648\u067e\u0631\u06cc \u062d\u0635\u06d2 \u0645\u06cc\u06ba \u0628\u06cc\u0679\u06be\u062a\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u0627\u0633 \u06a9\u06d2 \u0646\u06cc\u0686\u06d2 \u062a\u0645\u0627\u0645 \u0648\u06cc\u062c\u0679 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0628\u0646\u0627\u0626\u06d2 \u062c\u0627\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 \u06cc\u06c1 \u0627\u0646 \u0648\u062c\u06cc\u0679\u0633 \u067e\u0631 \u0628\u06be\u06cc \u0644\u0627\u06af\u0648 \u06c1\u0648\u062a\u0627 \u06c1\u06d2 \u062c\u0648 \u062a\u0628\u062f\u06cc\u0644 \u0634\u062f\u06c1 \u062d\u0627\u0644\u062a \u0633\u06d2 \u0645\u062a\u0639\u0644\u0642 \u0646\u06c1\u06cc\u06ba \u06c1\u06cc\u06ba\u06d4 \u062d\u0644 \u06cc\u06c1 \u06c1\u06d2 \u06a9\u06c1 \u0631\u06cc\u0627\u0633\u062a \u06a9\u0648 \u062c\u06c1\u0627\u06ba \u062a\u06a9 \u0645\u0645\u06a9\u0646 \u06c1\u0648 \u062f\u0631\u062e\u062a \u0633\u06d2 \u0646\u06cc\u0686\u06d2 \u062f\u06be\u06a9\u06cc\u0644 \u062f\u06cc\u0627 \u062c\u0627\u0626\u06d2\u060c \u0645\u062b\u0627\u0644\u06cc \u0637\u0648\u0631 \u067e\u0631 \u062e\u0648\u062f \u0633\u06d2 \u0646\u06a9\u0627\u0644\u06d2 \u06af\u0626\u06d2 \u0648\u06cc\u062c\u0679 \u0645\u06cc\u06ba\u06d4<\/p>\n
      \/\/ The problem: counter lives in the parent, so every\n\/\/ setState call rebuilds the entire subtree \u2014 including\n\/\/ ExpensiveListWidget, which has nothing to do with the counter.\nclass _BadExampleState extends State {\n  int _counter = 0;\n\n  @override\n  Widget build(BuildContext context) {\n    return Column(\n      children: [\n        Text('Count: $_counter'),\n        ElevatedButton(\n          onPressed: () => setState(() => _counter++),\n          child: const Text('Increment'),\n        ),\n        const ExpensiveListWidget(), \/\/ rebuilds for no reason\n      ],\n    );\n  }\n}\n<\/badexample><\/code><\/pre>\n
      \u0627\u0628\u060c \u0627\u06af\u0631 \u06af\u0646\u062a\u06cc \u062a\u0628\u062f\u06cc\u0644 \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u060c \u062a\u0648 \u0635\u0631\u0641 \u0648\u06c1\u06cc \u0648\u06cc\u062c\u06cc\u0679 \u062f\u0648\u0628\u0627\u0631\u06c1 \u0628\u0646\u0627\u06cc\u0627 \u062c\u0627\u0626\u06d2 \u06af\u0627\u06d4 ExpensiveListWidget<\/code> \u06cc\u06c1 \u0627\u0686\u06be\u0648\u062a\u0627 \u062a\u06be\u0627\u06d4<\/p>\n
      \u0646\u0627\u0645\u0639\u0644\u0648\u0645 \u0644\u0645\u0628\u0627\u0626\u06cc \u06a9\u06cc \u0627\u0634\u06cc\u0627\u0621 \u06a9\u06d2 \u0644\u06cc\u06d2 ListView.builder<\/h3>\n
      \u06a9\u0648\u0626\u06cc \u0631\u0627\u0633\u062a\u06c1 \u0646\u06c1\u06cc\u06ba Column<\/code> \u0645\u06cc\u067e\u0688 \u0644\u0633\u0679 \u06a9\u06d2 \u0633\u0627\u062a\u06be\u060c \u0622\u067e \u062a\u0645\u0627\u0645 \u0622\u0626\u0679\u0645\u0632 \u06a9\u0648 \u067e\u06c1\u0644\u06d2 \u0633\u06d2 \u0628\u0646\u0627\u062a\u06d2 \u06c1\u06cc\u06ba\u060c \u0642\u0637\u0639 \u0646\u0638\u0631 \u0627\u0633 \u0633\u06d2 \u06a9\u06c1 \u0648\u06c1 \u0646\u0638\u0631 \u0622\u0631\u06c1\u06cc \u06c1\u06cc\u06ba \u06cc\u0627 \u0646\u06c1\u06cc\u06ba\u06d4 200 \u0622\u0626\u0679\u0645\u0632 \u06a9\u06cc \u0641\u06c1\u0631\u0633\u062a \u0645\u06cc\u06ba 200 \u0648\u06cc\u062c\u0679 \u06c1\u0648\u06ba \u06af\u06d2 \u0627\u0633 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06a9\u06c1 \u0635\u0627\u0631\u0641 \u0627\u0633\u06a9\u0631\u0648\u0644 \u06a9\u0631\u06d2\u06d4<\/p>\n
      \/\/ This builds every single item widget upfront.\n\/\/ With 200 items, 200 widgets are created on first render,\n\/\/ most of which are immediately off-screen.\nColumn(\n  children: items.map((item) => ItemCard(item: item)).toList(),\n)\n\n\/\/ This builds only what is visible, plus a small buffer.\n\/\/ Scrolling through 10,000 items uses the same memory as 10.\nListView.builder(\n  itemCount: items.length,\n  itemBuilder: (context, index) {\n    return ItemCard(items[index]);\n  },\n)\n<\/code><\/pre>\n
      ListView.builder<\/code>    \u06cc\u06c1 \u0628\u0691\u06cc \u0641\u06c1\u0631\u0633\u062a\u0648\u06ba \u06a9\u06d2 \u0644\u06cc\u06d2 \u0645\u0648\u0632\u0648\u06ba \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4 \u06cc\u06c1 \u0646\u0627\u0645\u0639\u0644\u0648\u0645 \u06cc\u0627 \u0645\u062a\u063a\u06cc\u0631 \u0633\u0627\u0626\u0632 \u06a9\u06cc \u0641\u06c1\u0631\u0633\u062a\u0648\u06ba \u06a9\u06d2 \u0644\u06cc\u06d2 \u062f\u0631\u0633\u062a \u0688\u06cc\u0641\u0627\u0644\u0679 \u06c1\u06d2\u06d4 \u0645\u06cc\u06ba \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u062a\u0627 \u06c1\u0648\u06ba Column<\/code> \u0645\u06cc\u067e \u0634\u062f\u06c1 \u0641\u06c1\u0631\u0633\u062a\u06cc\u06ba \u0635\u0631\u0641 \u0627\u0633 \u0635\u0648\u0631\u062a \u0645\u06cc\u06ba \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u06cc\u06ba \u062c\u0628 \u0622\u067e \u06a9\u0648 \u06cc\u0642\u06cc\u0646 \u06c1\u0648 \u06a9\u06c1 \u0641\u06c1\u0631\u0633\u062a \u06c1\u0645\u06cc\u0634\u06c1 \u0686\u06be\u0648\u0679\u06cc \u0631\u06c1\u06d2 \u06af\u06cc\u06d4<\/p>\n
      \u06cc\u06c1 \u0627\u0646 \u06a9\u06cc\u0691\u0648\u06ba \u0645\u06cc\u06ba \u0633\u06d2 \u0627\u06cc\u06a9 \u06c1\u06d2 \u062c\u0648 \u062a\u0631\u0642\u06cc \u06a9\u06d2 \u062f\u0648\u0631\u0627\u0646 \u0645\u06a9\u0645\u0644 \u0637\u0648\u0631 \u067e\u0631 \u06a9\u0633\u06cc \u06a9\u0627 \u062f\u06be\u06cc\u0627\u0646 \u0646\u06c1\u06cc\u06ba \u062c\u0627\u062a\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u067e\u06cc\u062f\u0627\u0648\u0627\u0631 \u0645\u06cc\u06ba \u0638\u0627\u06c1\u0631 \u06c1\u0648\u062a\u0627 \u0631\u06c1\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n
      \u0645\u0646\u0638\u0631 \u0646\u0627\u0645\u06c1: \u0627\u06cc\u06a9 \u063a\u06cc\u0631 \u0645\u0637\u0627\u0628\u0642\u062a \u067e\u0630\u06cc\u0631 \u0622\u067e\u0631\u06cc\u0634\u0646 \u0634\u0631\u0648\u0639 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u060c \u0635\u0627\u0631\u0641 \u0627\u0633 \u06a9\u06d2 \u0645\u06a9\u0645\u0644 \u06c1\u0648\u0646\u06d2 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06c1\u06cc \u0686\u0644\u0627 \u062c\u0627\u062a\u0627 \u06c1\u06d2\u060c \u0622\u067e\u0631\u06cc\u0634\u0646 \u0645\u06a9\u0645\u0644 \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u060c \u0627\u0648\u0631 \u06a9\u0627\u0644 \u06a9\u0631\u0646\u06d2 \u06a9\u06cc \u06a9\u0648\u0634\u0634 \u06a9\u06cc \u062c\u0627\u062a\u06cc \u06c1\u06d2\u06d4 setState<\/code> \u0627\u06cc\u06a9 \u0648\u06cc\u062c\u06cc\u0679 \u0633\u06d2 \u062c\u0648 \u0627\u0628 \u0645\u0648\u062c\u0648\u062f \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4<\/p>\n
      Future _loadData() async {\n  final data = await repository.fetchData();\n\n  \/\/ If the user navigated away during the await above,\n  \/\/ this widget is gone. setState throws:\n  \/\/ \"setState() called after dispose()\"\n  setState(() => this.data = data );\n}\n<\/void><\/code><\/pre>\n
      \u062d\u0644 \u0627\u06cc\u06a9 \u0644\u0627\u0626\u0646 \u06c1\u06d2:<\/p>\n
      Future _loadData() async {\n  final data = await repository.fetchData();\n\n  \/\/ mounted is true while the widget is in the tree,\n  \/\/ false after dispose() has been called.\n  if (!mounted) return;\n\n  setState(() => this.data = data);\n}\n<\/void><\/code><\/pre>\n
      \u0627\u0628 \u06c1\u0645 \u062e\u0648\u062f \u0628\u062e\u0648\u062f \u06cc\u06c1 \u0686\u06cc\u06a9 \u06c1\u0631 \u06af\u06be\u0646\u0679\u06d2 \u0644\u06a9\u06be\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 await<\/code> \u06cc\u06c1 \u0645\u0646\u062f\u0631\u062c\u06c1 \u0630\u06cc\u0644 \u06a9\u06cc \u0637\u0631\u0641 \u062c\u0627\u062a\u0627 \u06c1\u06d2\u06d4 setState<\/code>. \u06cc\u06c1 \u062c\u0644\u062f \u06c1\u06cc \u067e\u0679\u06be\u0648\u06ba \u06a9\u06cc \u06cc\u0627\u062f\u062f\u0627\u0634\u062a \u0628\u0646 \u062c\u0627\u062a\u06cc \u06c1\u06d2\u06d4<\/p>\n
      \u0627\u067e\u0646\u06cc \u062a\u0639\u0645\u06cc\u0631 \u06a9\u06d2 \u0627\u0646\u062f\u0631 \u0641\u06cc\u0648\u0686\u0631 \u0646\u06c1 \u0628\u0646\u0627\u0626\u06cc\u06ba\u06d4<\/h3>\n
      \u06cc\u06c1 \u0627\u06cc\u06a9 \u0627\u06cc\u0633\u0627 \u0645\u0633\u0626\u0644\u06c1 \u06c1\u06d2 \u062c\u0633\u06d2 \u0646\u0638\u0631 \u0627\u0646\u062f\u0627\u0632 \u06a9\u0631\u0646\u0627 \u0622\u0633\u0627\u0646 \u06c1\u06d2\u06d4 \u0627\u06af\u0631 \u0622\u067e \u0628\u0631\u0627\u06c1 \u0631\u0627\u0633\u062a \u0627\u0646\u062f\u0631 \u0633\u06d2 \u0645\u0633\u062a\u0642\u0628\u0644 \u0628\u0646\u0627\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 build<\/code> \u06c1\u0631 \u0628\u0627\u0631 \u062c\u0628 \u0622\u067e \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0639\u0645\u06cc\u0631 \u06a9\u0631\u062a\u06d2 \u06c1\u06cc\u06ba \u062a\u0648 \u06cc\u06c1 \u0637\u0631\u06cc\u0642\u06c1 \u0627\u06cc\u06a9 \u0646\u06cc\u0627 \u0645\u0633\u062a\u0642\u0628\u0644 \u062a\u062e\u0644\u06cc\u0642 \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4 \u062f\u0648\u0633\u0631\u06d2 \u0627\u0644\u0641\u0627\u0638 \u0645\u06cc\u06ba FutureBuilder<\/code> \u06c1\u0631 \u0628\u0627\u0631 \u0627\u0633\u06d2 \u0627\u06cc\u06a9 \u0646\u0626\u06d2 \u06a9\u0627\u0645 \u06a9\u06d2 \u0637\u0648\u0631 \u067e\u0631 \u0633\u0645\u062c\u06be\u0627 \u062c\u0627\u062a\u0627 \u06c1\u06d2 \u0627\u0648\u0631 \u063a\u06cc\u0631 \u0636\u0631\u0648\u0631\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0644\u0648\u0688 \u0634\u062f\u06c1 \u062d\u0627\u0644\u062a \u067e\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u062a\u0631\u062a\u06cc\u0628 \u062f\u06cc\u0627 \u062c\u0627\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n
      \/\/ Bad: a new Future is created on every rebuild.\n\/\/ FutureBuilder sees a different Future each time\n\/\/ and resets to loading state unnecessarily.\n@override\nWidget build(BuildContext context) {\n  return FutureBuilder(\n    future: repository.fetchUser(userId), \/\/ new Future every build\n    builder: (context, snapshot) { ... },\n  );\n}\n<\/code><\/pre>\n
      \/\/ Good: create the Future once in initState.\n\/\/ FutureBuilder holds the same reference across rebuilds.\nlate final Future _userFuture;\n\n@override\nvoid initState() {\n  super.initState();\n  _userFuture = repository.fetchUser(widget.userId);\n}\n\n@override\nWidget build(BuildContext context) {\n  return FutureBuilder(\n    future: _userFuture,\n    builder: (context, snapshot) { ... },\n  );\n}\n<\/user><\/code><\/pre>\n
      \u0628\u06be\u0627\u0631\u06cc \u06a9\u0627\u0645 \u06a9\u0648 UI \u062a\u06be\u0631\u06cc\u0688 \u0633\u06d2 \u06c1\u0679\u0627 \u062f\u06cc\u06ba\u06d4<\/h3>\n
      \u0688\u0627\u0631\u0679 UI \u06a9\u0648 \u0688\u06cc\u0641\u0627\u0644\u0679 \u062a\u0646\u06c1\u0627\u0626\u06cc \u0645\u06cc\u06ba \u067e\u06cc\u0634 \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4 \u0633\u06cc \u067e\u06cc \u06cc\u0648 \u06a9\u06cc \u06a9\u0648\u0626\u06cc \u0628\u06be\u06cc \u0686\u06cc\u0632 \u062c\u0648 \u0627\u0633 \u06a9\u0648 \u0631\u0648\u06a9\u062a\u06cc \u06c1\u06d2 \u0648\u06c1 \u0641\u0631\u06cc\u0645\u0648\u06ba \u06a9\u0648 \u06af\u0631\u0627\u0626\u06d2 \u06af\u06cc\u06d4<\/p>\n
      \/\/ Parsing a large API response synchronously on the main isolate\n\/\/ can block rendering for 50-200ms on slower devices.\nfinal users = (response.data as List)\n    .map((json) => User.fromJson(json))\n    .toList();\n<\/code><\/pre>\n
      \/\/ compute() runs the function in a separate isolate.\n\/\/ The main isolate stays free to render frames.\n\/\/ Note: the function must be top-level or static \u2014\n\/\/ closures that capture local state cannot be sent to another isolate.\nfinal users = await compute(parseUsers, response.data);\n\nList parseUsers(dynamic data) {\n  return (data as List)\n      .map((json) => User.fromJson(json as Map))\n      .toList();\n}\n<\/string><\/user><\/code><\/pre>\n
      \u0645\u06cc\u06ba \u067e\u06c1\u0646\u0686\u062a\u0627 \u06c1\u0648\u06ba compute<\/code> \u062c\u0628 \u0628\u06be\u06cc \u0622\u067e JSON \u06a9\u06d2 \u0628\u0691\u06d2 \u062c\u0648\u0627\u0628\u0627\u062a \u06a9\u0648 \u067e\u0627\u0631\u0633 \u06a9\u0631 \u0631\u06c1\u06d2 \u06c1\u0648\u06ba\u060c \u0627\u0645\u06cc\u062c \u067e\u0631\u0648\u0633\u06cc\u0633\u0646\u06af \u06a9\u0631 \u0631\u06c1\u06d2 \u06c1\u0648\u06ba\u060c \u06cc\u0627 \u06a9\u0648\u0626\u06cc \u0627\u0648\u0631 \u0686\u06cc\u0632 \u062c\u0648 \u062a\u06cc\u0632 \u067e\u0631\u0648\u0641\u0627\u0626\u0644 \u067e\u0631 \u0633\u0633\u062a \u0645\u062d\u0633\u0648\u0633 \u06c1\u0648\u06d4 \u0645\u06cc\u0631\u06d2 \u0633\u0631 \u0645\u06cc\u06ba \u062d\u062f \u062a\u0642\u0631\u06cc\u0628\u0627\u064b 16ms \u06c1\u06d2\u06d4 \u0627\u06af\u0631 \u06a9\u0633\u06cc \u06a9\u0627\u0645 \u0645\u06cc\u06ba \u0627\u0633 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0648\u0642\u062a \u0644\u06af \u0633\u06a9\u062a\u0627 \u06c1\u06d2\u060c \u062a\u0648 \u0627\u0633\u06d2 \u0631\u06cc\u0627\u0633\u062a\u06cc \u0642\u0631\u0646\u0637\u06cc\u0646\u06c1 \u0645\u06cc\u06ba \u0646\u06c1\u06cc\u06ba \u06c1\u0648\u0646\u0627 \u0686\u0627\u06c1\u06cc\u06d2\u06d4<\/p>\n
      \u0645\u06cc\u0645\u0648\u0631\u06cc \u0644\u06cc\u06a9 \u0627\u0648\u0631 \u0644\u0627\u0626\u0641 \u0633\u0627\u0626\u06cc\u06a9\u0644 \u0645\u06cc\u0646\u062c\u0645\u0646\u0679<\/h2>\n
      \u0627\u0646 \u062a\u0645\u0627\u0645 \u0627\u06cc\u067e\u0633 \u0645\u06cc\u06ba \u0633\u06d2 \u062c\u0648 \u0645\u06cc\u06ba \u0646\u06d2 \u062c\u0627\u0631\u06cc \u06a9\u06cc \u06c1\u06cc\u06ba\u060c \u0627\u0633 \u0645\u06cc\u06ba \u0633\u0628 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0688\u06cc\u0628\u06af\u0646\u06af \u06a9\u0627 \u0648\u0642\u062a \u0644\u06af\u0627\u06d4 \u067e\u06be\u0691\u067e\u06be\u0691\u0627\u0646\u06d2 \u0645\u06cc\u06ba \u0645\u06cc\u0645\u0648\u0631\u06cc \u06a9\u0627 \u0644\u06cc\u06a9 \u06c1\u0648\u0646\u0627 \u0641\u0648\u0631\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0628\u0646\u062f \u0646\u06c1\u06cc\u06ba \u06c1\u0648\u062a\u0627 \u06c1\u06d2\u06d4 \u0627\u06cc\u067e \u0628\u06be\u0627\u0631\u06cc \u06c1\u0648\u0646\u0627 \u0634\u0631\u0648\u0639 \u06c1\u0648 \u062c\u0627\u062a\u06cc \u06c1\u06d2\u060c OS \u0627\u0633\u06d2 \u067e\u0633 \u0645\u0646\u0638\u0631 \u0645\u06cc\u06ba \u0645\u0627\u0631\u0646\u0627 \u0634\u0631\u0648\u0639 \u06a9\u0631 \u062f\u06cc\u062a\u0627 \u06c1\u06d2\u060c \u0627\u0648\u0631 \u06cc\u06c1 \u0622\u06c1\u0633\u062a\u06c1 \u0622\u06c1\u0633\u062a\u06c1 \u0641\u06cc \u0633\u06cc\u0634\u0646 \u0686\u0646\u062f \u0645\u06cc\u06af\u0627 \u0628\u0627\u0626\u0679\u0633 \u06a9\u06d2 \u062d\u0633\u0627\u0628 \u0633\u06d2 \u0628\u0646\u062a\u0627 \u06c1\u06d2 \u062c\u0628 \u062a\u06a9 \u06a9\u06c1 \u0635\u0627\u0631\u0641 "\u0628\u06d2 \u062a\u0631\u062a\u06cc\u0628 \u06a9\u0631\u06cc\u0634\u0632” \u06a9\u06d2 \u0628\u0627\u0631\u06d2 \u0645\u06cc\u06ba \u0628\u06af \u0631\u067e\u0648\u0631\u0679 \u062f\u0631\u062c \u0646\u06c1\u06cc\u06ba \u06a9\u0631 \u062f\u06cc\u062a\u06d2\u06d4<\/p>\n
      \u0628\u0646\u06cc\u0627\u062f\u06cc \u0648\u062c\u06c1 \u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u06c1\u0645\u06cc\u0634\u06c1 \u0627\u06cc\u06a9 \u06c1\u06cc \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u06d4 \u0648\u06cc\u062c\u06cc\u0679 \u06a9\u06d2 \u0627\u0646\u062f\u0631 \u0628\u0646\u0627\u0626\u06d2 \u06af\u0626\u06d2 \u0622\u0626\u0679\u0645\u0632 \u0648\u06cc\u062c\u06cc\u0679 \u06a9\u06d2 \u063a\u0627\u0626\u0628 \u06c1\u0648\u0646\u06d2 \u06a9\u06d2 \u0628\u0639\u062f \u0628\u06be\u06cc \u0686\u0644\u062a\u06d2 \u0631\u06c1\u06cc\u06ba \u06af\u06d2\u06d4<\/p>\n
      \u0627\u06cc\u06a9 \u06a9\u0646\u0679\u0631\u0648\u0644\u0631 \u062c\u0633\u06d2 \u06a9\u0628\u06be\u06cc \u0636\u0627\u0626\u0639 \u0646\u06c1\u06cc\u06ba \u06a9\u06cc\u0627 \u062c\u0627\u0626\u06d2 \u06af\u0627\u06d4<\/h3>\n
      \u0645\u06cc\u0645\u0648\u0631\u06cc \u0644\u06cc\u06a9 \u06a9\u06cc \u0633\u0628 \u0633\u06d2 \u0639\u0627\u0645 \u0648\u062c\u06c1 \u062c\u0648 \u0645\u06cc\u06ba \u0646\u06d2 \u062f\u06cc\u06a9\u06be\u06cc \u06c1\u06d2\u060c \u0628\u0634\u0645\u0648\u0644 \u0645\u06cc\u0631\u06d2 \u0627\u067e\u0646\u06d2 \u06a9\u0648\u0688 \u0645\u06cc\u06ba\u060c \u0648\u06c1 \u06a9\u0646\u0679\u0631\u0648\u0644\u0631\u0632 \u06c1\u06cc\u06ba \u062c\u0646 \u0633\u06d2: initState<\/code> \u0627\u0648\u0631 \u06a9\u0628\u06be\u06cc \u0631\u06c1\u0627 \u0646\u06c1\u06cc\u06ba \u06c1\u0648\u0627\u06d4 \u067e\u06be\u0691\u067e\u06be\u0691\u0627\u0646\u0627 \u062e\u0648\u062f \u0628\u062e\u0648\u062f \u0627\u0646 \u06a9\u0648 \u0635\u0627\u0641 \u0646\u06c1\u06cc\u06ba \u06a9\u0631\u062a\u0627 \u06c1\u06d2\u06d4<\/p>\n
      class _ProfileScreenState extends State {\n  late final TextEditingController _nameController;\n  late final AnimationController _fadeController;\n  late final ScrollController _scrollController;\n\n  @override\n  void initState() {\n    super.initState();\n    _nameController = TextEditingController();\n    _fadeController = AnimationController(\n      vsync: this,\n      duration: const Duration(milliseconds: 300),\n    );\n    _scrollController = ScrollController();\n  }\n\n  @override\n  void dispose() {\n    \/\/ Every controller created in initState needs to be\n    \/\/ disposed here. This is not optional \u2014 it releases\n    \/\/ native resources and removes listeners that would\n    \/\/ otherwise keep this widget's memory alive indefinitely.\n    _nameController.dispose();\n    _fadeController.dispose();\n    _scrollController.dispose();\n    super.dispose(); \/\/ always last\n  }\n}\n<\/profilescreen><\/code><\/pre>\n
      \u06a9\u0627 \u062a\u0635\u0631\u0641 \u0646\u06c1\u06cc\u06ba AnimationController<\/code> \u06cc\u06c1 \u062e\u0627\u0635 \u0637\u0648\u0631 \u067e\u0631 \u0628\u0631\u0627 \u06c1\u06d2\u06d4 \u0627\u0633 \u0645\u06cc\u06ba \u0627\u06cc\u06a9 \u0679\u06a9\u0631 \u06c1\u06d2 \u062c\u0648 \u06c1\u0631 \u0641\u0631\u06cc\u0645 \u06a9\u0648 \u0686\u0644\u0627\u062a\u0627 \u06c1\u06d2\u060c \u0627\u0633 \u0644\u06cc\u06d2 \u06cc\u06c1 \u0627\u0633\u06a9\u0631\u06cc\u0646 \u063a\u0627\u0626\u0628 \u06c1\u0648\u0646\u06d2 \u06a9\u06d2 \u0628\u0639\u062f \u0628\u06be\u06cc CPU \u0627\u0633\u062a\u0639\u0645\u0627\u0644 \u06a9\u0631\u062a\u0627 \u0631\u06c1\u062a\u0627 \u06c1\u06d2\u06d4 \u0645\u06cc\u06ba \u0646\u06d2 \u062f\u06cc\u06a9\u06be\u0627 \u06c1\u06d2 \u06a9\u06c1 \u0627\u0633 \u06a9\u06cc \u0648\u062c\u06c1 \u06cc\u0627\u062f\u062f\u0627\u0634\u062a \u06a9\u06d2 \u0645\u0633\u0627\u0626\u0644 \u06a9\u06d2 \u0639\u0644\u0627\u0648\u06c1 \u0646\u0645\u0627\u06cc\u0627\u06ba \u0628\u06cc\u0679\u0631\u06cc \u0688\u0631\u06cc\u0646 \u06c1\u0648\u062a\u06cc \u06c1\u06d2\u06d4<\/p>\n
      \u0633\u0644\u0633\u0644\u06c1 \u06a9\u0648 \u0633\u0628\u0633\u06a9\u0631\u0627\u0626\u0628 \u06a9\u0631\u06cc\u06ba\u06d4<\/h3>\n
      class _ChatScreenState extends State {\n  StreamSubscription? _messageSubscription;\n\n  @override\n  void initState() {\n    super.initState();\n    _messageSubscription = messageStream.listen((message) {\n      \/\/ Without cancellation, this callback keeps firing\n      \/\/ even after the screen is removed from the tree.\n      \/\/ It will call setState on a disposed widget and\n      \/\/ hold message objects in memory that should be freed.\n      if (mounted) setState(() => messages.add(message));\n    });\n  }\n\n  @override\n  void dispose() {\n    _messageSubscription?.cancel();\n    super.dispose();\n  }\n}\n<\/message><\/chatscreen><\/code><\/pre>\n
      \u0679\u0627\u0626\u0645\u0631<\/h3>\n
      @override\nvoid dispose() {\n  \/\/ A timer that fires after dispose will try to run\n  \/\/ a callback on a widget that no longer exists.\n  _dismissTimer?.cancel();\n  super.dispose();\n}\n<\/code><\/pre>\n
      \u0642\u0648\u0627\u0639\u062f \u062c\u0648 \u0645\u06cc\u06ba \u0628\u063a\u06cc\u0631 \u06a9\u0633\u06cc \u0627\u0633\u062a\u062b\u0646\u0627\u0621 \u06a9\u06d2 \u067e\u06cc\u0631\u0648\u06cc \u06a9\u0631\u062a\u0627 \u06c1\u0648\u06ba: \u06c1\u0631 \u0686\u06cc\u0632 \u062c\u0633 \u0645\u06cc\u06ba \u0628\u0646\u0627\u0626\u06cc \u06af\u0626\u06cc \u06c1\u06d2\u06d4 initState<\/code> \u06a9\u06c1 dispose<\/code>, cancel<\/code>\u06cc\u0627 close<\/code> \u0637\u0631\u06cc\u0642\u06c1 \u0627\u0633 \u06a9\u06cc \u06a9\u0627\u0644 \u06c1\u0648 \u062c\u0627\u062a\u0627 \u06c1\u06d2. dispose<\/code>. \u06a9\u0648\u0626\u06cc \u0627\u0633\u062a\u062b\u0646\u0627 \u0646\u06c1\u06cc\u06ba\u060c \u0628\u0633 "\u0645\u06cc\u06ba \u0627\u0633\u06d2 \u0628\u0639\u062f \u0645\u06cc\u06ba \u0634\u0627\u0645\u0644 \u06a9\u0631\u0648\u06ba \u06af\u0627\u06d4”<\/p>\n
      \u0645\u0634\u0627\u06c1\u062f\u06c1 \u0627\u0648\u0631 \u062a\u0646\u0627\u0632\u0639\u0627\u062a \u06a9\u06cc \u0631\u067e\u0648\u0631\u0679\u0646\u06af<\/h2>\n
      \u0627\u0633 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u06a9\u06c1 \u06c1\u0645 \u0627\u067e\u0646\u06cc \u067e\u06c1\u0644\u06cc \u067e\u0631\u0648\u0688\u06a9\u0634\u0646 \u0627\u06cc\u067e \u0645\u06cc\u06ba \u06a9\u0631\u06cc\u0634 \u0631\u067e\u0648\u0631\u0679\u0646\u06af \u06a9\u0648 \u0636\u0645 \u06a9\u0631 \u062f\u06cc\u06ba\u060c \u0688\u06cc\u0628\u06af\u0646\u06af \u0627\u06cc\u06a9 \u062d\u0642\u06cc\u0642\u06cc \u062a\u06a9\u0644\u06cc\u0641 \u062a\u06be\u06cc\u06d4 \u0635\u0627\u0631\u0641\u06cc\u0646 \u06a9\u0631\u06cc\u0634 \u06a9\u06cc \u0627\u0637\u0644\u0627\u0639 \u062f\u06d2 \u0631\u06c1\u06d2 \u06c1\u06cc\u06ba\u06d4 \u0645\u06cc\u06ba \u0627\u0646 \u0633\u06d2 \u067e\u0648\u0686\u06be\u0648\u06ba \u06af\u0627 \u06a9\u06c1 \u0648\u06c1 \u06a9\u06cc\u0627 \u06a9\u0631 \u0631\u06c1\u06d2 \u06c1\u06cc\u06ba\u06d4 "\u06c1\u0645 \u0646\u06d2 \u0627\u0628\u06be\u06cc \u0627\u0633\u06d2 \u06a9\u06be\u0648\u0644\u0627 \u06c1\u06d2\u060c” \u0648\u06c1 \u06a9\u06c1\u06cc\u06ba \u06af\u06d2\u06d4 \u0645\u06cc\u06ba \u0627\u0633 \u06a9\u0648\u0688 \u06a9\u0648 \u062f\u06cc\u06a9\u06be\u0648\u06ba \u06af\u0627 \u06a9\u06c1 \u0627\u0633 \u06a9\u06cc \u0648\u062c\u06c1 \u06a9\u06cc\u0627 \u06c1\u0648 \u0633\u06a9\u062a\u06cc \u06c1\u06d2\u06d4 \u0622\u062f\u06be\u0627 \u0648\u0642\u062a \u0645\u062c\u06be\u06d2 \u0633\u0645\u062c\u06be \u0646\u06c1\u06cc\u06ba \u0622\u06cc\u0627\u06d4<\/p>\n
      \u06a9\u0631\u06cc\u0634 \u0631\u067e\u0648\u0631\u0679\u0646\u06af \u06a9\u06d2 \u0633\u0627\u062a\u06be\u060c \u0686\u06cc\u0632\u06cc\u06ba \u0628\u0627\u0644\u06a9\u0644 \u0645\u062e\u062a\u0644\u0641 \u06c1\u06cc\u06ba\u06d4<\/p>\n
      \u067e\u0631\u06cc \u0644\u0627\u0646\u0686 \u06a9\u06cc \u062a\u0631\u062a\u06cc\u0628\u0627\u062a<\/h3>\n
      void main() async {\n  WidgetsFlutterBinding.ensureInitialized();\n  await Firebase.initializeApp();\n\n  \/\/ Catch Flutter framework errors \u2014 widget build errors,\n  \/\/ rendering errors, etc.\n  FlutterError.onError =\n      FirebaseCrashlytics.instance.recordFlutterFatalError;\n\n  \/\/ Catch errors in async code that Flutter does not catch \u2014\n  \/\/ errors in event handlers, timers, isolates.\n  PlatformDispatcher.instance.onError = (error, stack) {\n    FirebaseCrashlytics.instance.recordError(error, stack, fatal: true);\n    return true;\n  };\n\n  runApp(const MyApp());\n}\n<\/code><\/pre>\n
      \u0646\u0627\u06a9\u0627\u0645\u06cc \u06a9\u0648 \u06a9\u0628\u06be\u06cc \u062e\u0627\u0645\u0648\u0634 \u0646\u06c1 \u06c1\u0648\u0646\u06d2 \u062f\u06cc\u06ba\u06d4<\/h3>\n
      \/\/ This is how I used to write it. If submitOrder throws,\n\/\/ nothing happens. The user has no idea. I have no idea.\nawait api.submitOrder(order);\n<\/code><\/pre>\n
      \/\/ This is how I write it now.\ntry {\n  await api.submitOrder(order);\n  setState(() => orderStatus = OrderStatus.confirmed);\n} catch (e, stackTrace) {\n  \/\/ recordError sends the full exception and stack trace\n  \/\/ to Crashlytics, with device info and the user's\n  \/\/ recent session activity attached automatically.\n  FirebaseCrashlytics.instance.recordError(e, stackTrace);\n  setState(() => orderStatus = OrderStatus.failed);\n}\n<\/code><\/pre>\n
      \u062a\u062d\u0631\u06cc\u06a9 \u06a9\u0627 \u0631\u0627\u0633\u062a\u06c1<\/h3>\n
      \u062e\u0627\u0645 \u06a9\u0631\u06cc\u0634 \u0644\u0627\u06af\u0632 \u0622\u067e \u06a9\u0648 \u0628\u062a\u0627\u0626\u06cc\u06ba \u06af\u06d2 \u06a9\u06c1 \u0645\u0633\u0626\u0644\u06c1 \u06a9\u06cc\u0627 \u06c1\u06d2\u06d4 \u0628\u0631\u06cc\u0688 \u06a9\u0631\u0645\u0628\u0633 \u0622\u067e \u06a9\u0648 \u0628\u062a\u0627\u062a\u06d2 \u06c1\u06cc\u06ba \u06a9\u06c1 \u062c\u0628 \u0645\u0633\u0626\u0644\u06c1 \u067e\u06cc\u0634 \u0622\u06cc\u0627 \u062a\u0648 \u0635\u0627\u0631\u0641 \u06a9\u06cc\u0627 \u06a9\u0631 \u0631\u06c1\u0627 \u062a\u06be\u0627\u06d4 \u06cc\u06c1 \u0627\u06cc\u06a9 \u06c1\u06cc \u0686\u06cc\u0632 \u0646\u06c1\u06cc\u06ba \u06c1\u06cc\u06ba\u06d4<\/p>\n
      FirebaseCrashlytics.instance.log('User opened checkout');\nFirebaseCrashlytics.instance.log('Payment sheet presented');\nFirebaseCrashlytics.instance.log('User submitted payment');\n\/\/ crash here \u2014 now I know the exact sequence\n<\/code><\/pre>\n
      \u0627\u067e\u0646\u06cc \u067e\u0631\u0648\u0688\u06a9\u0634\u0646 \u0641\u0644\u0679\u0631 \u0627\u06cc\u067e \u06a9\u06cc \u062c\u0627\u0646\u0686 \u06a9\u0631\u06cc\u06ba\u06d4<\/h2>\n
      \u0633\u0686 \u067e\u0648\u0686\u06be\u06cc\u06ba \u062a\u0648\u060c \u0645\u06cc\u06ba \u0646\u06d2 \u0627\u067e\u0646\u06cc \u067e\u06c1\u0644\u06cc \u0627\u06cc\u067e \u06a9\u0648 \u06a9\u0645 \u062c\u0627\u0646\u0686\u0627\u06d4 \u0645\u06cc\u06ba \u062a\u06cc\u0632\u06cc \u0633\u06d2 \u0622\u06af\u06d2 \u0628\u0691\u06be \u0631\u06c1\u0627 \u062a\u06be\u0627\u060c \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u06a9\u0627\u0645 \u06a9\u0631 \u0631\u06c1\u06cc \u062a\u06be\u06cc\u06ba\u060c \u0627\u0648\u0631 \u062a\u062d\u0631\u06cc\u0631\u06cc \u0679\u06cc\u0633\u0679 \u0633\u0633\u062a \u0645\u062d\u0633\u0648\u0633 \u06c1\u0648 \u0631\u06c1\u06d2 \u062a\u06be\u06d2\u06d4 \u0627\u0633 \u06a9\u06d2 \u0628\u0639\u062f \u06c1\u0645 \u0646\u06d2 \u0642\u06cc\u0645\u062a\u0648\u06ba \u06a9\u06d2 \u062d\u0633\u0627\u0628 \u06a9\u062a\u0627\u0628 \u06a9\u0648 \u0631\u06cc \u0641\u06cc\u06a9\u0679\u0631 \u06a9\u06cc\u0627 \u0627\u0648\u0631 \u0627\u06cc\u06a9 \u0627\u06cc\u0633\u0627 \u0628\u06af \u0645\u062a\u0639\u0627\u0631\u0641 \u06a9\u0631\u0627\u06cc\u0627 \u062c\u0648 \u0641\u0648\u0631\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0648\u0627\u0636\u062d \u0646\u06c1\u06cc\u06ba \u062a\u06be\u0627 \u0627\u0648\u0631 \u0627\u0633\u06d2 \u062c\u0627\u0631\u06cc \u06a9\u0631 \u062f\u06cc\u0627\u06d4 \u0627\u06cc\u06a9 \u0627\u0648\u0631 \u0635\u0627\u0631\u0641 \u0646\u06d2 \u06cc\u06c1 \u0645\u062c\u06be \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u067e\u0627\u06cc\u0627\u06d4<\/p>\n
      \u0627\u0628 \u06c1\u0645 \u0632\u06cc\u0627\u062f\u06c1 \u0627\u062d\u062a\u06cc\u0627\u0637 \u0633\u06d2 \u062c\u0627\u0646\u0686\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4 \u06cc\u06c1 \u0633\u0628 \u06a9\u0686\u06be \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u060c \u06cc\u06c1 \u0627\u06c1\u0645 \u0686\u06cc\u0632 \u06c1\u06d2\u06d4<\/p>\n
      \u06cc\u0648\u0646\u0679 \u0679\u06cc\u0633\u0679 \u0628\u0632\u0646\u0633 \u0645\u0646\u0637\u0642<\/h3>\n
      test('discount applies percentage correctly', () {\n  final result = calculateDiscountedPrice(\n    price: 100.0,\n    discountPercent: 10,\n  );\n\n  \/\/ 10% off 100.00 should be 90.00\n  expect(result, equals(90.0));\n});\n\ntest('discount throws for negative percentage', () {\n  expect(\n    () => calculateDiscountedPrice(price: 100, discountPercent: -5),\n    throwsA(isA()),\n  );\n});\n<\/argumenterror><\/code><\/pre>\n
      \u06a9\u0627\u0631\u0648\u0628\u0627\u0631\u06cc \u0645\u0646\u0637\u0642 (\u0642\u06cc\u0645\u062a\u0648\u06ba \u06a9\u0627 \u062a\u0639\u06cc\u0646\u060c \u062a\u0648\u062b\u06cc\u0642\u060c \u0645\u0646\u0638\u0648\u0631\u06cc) \u0628\u0627\u0642\u0627\u0639\u062f\u06c1 \u0688\u0627\u0631\u0679 \u0641\u0646\u06a9\u0634\u0646\u0632 \u0645\u06cc\u06ba \u06c1\u0648\u0646\u0627 \u0686\u0627\u06c1\u06cc\u06d2 \u062c\u0633 \u0645\u06cc\u06ba \u06a9\u0648\u0626\u06cc \u0641\u0644\u0679\u0631 \u0627\u0646\u062d\u0635\u0627\u0631 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u060c \u0627\u0633 \u0644\u06cc\u06d2 \u0627\u0646 \u06a9\u06cc \u062c\u0627\u0646\u0686 \u0645\u0644\u06cc \u0633\u06cc\u06a9\u0646\u0688 \u0645\u06cc\u06ba \u0627\u0648\u0631 \u0628\u0646\u06cc\u0627\u062f\u06cc \u0688\u06be\u0627\u0646\u0686\u06d2 \u06a9\u06cc \u062c\u0627\u0646\u0686 \u06a9\u06cc\u06d2 \u0628\u063a\u06cc\u0631 \u06a9\u06cc \u062c\u0627 \u0633\u06a9\u062a\u06cc \u06c1\u06d2\u06d4<\/p>\n
      \u0648\u06cc\u062c\u06cc\u0679 \u0679\u06cc\u0633\u0679 UI \u0627\u0633\u0679\u06cc\u0679\u0633<\/h3>\n
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      testWidgets('shows error state with retry button on load failure',\n    (tester) async {\n  final mockRepo = MockUserRepository();\n  when(mockRepo.getUser(any)).thenThrow(Exception('Network error'));\n\n  await tester.pumpWidget(\n    ProviderScope(\n      overrides: [\n        userRepositoryProvider.overrideWithValue(mockRepo),\n      ],\n      child: const MaterialApp(home: ProfileScreen(userId: 'test')),\n    ),\n  );\n\n  \/\/ pumpAndSettle waits for all animations and async\n  \/\/ operations to complete before asserting.\n  await tester.pumpAndSettle();\n\n  expect(find.text('Failed to load profile. Please try again.'), findsOneWidget);\n  expect(find.text('Try again'), findsOneWidget);\n});\n<\/code><\/pre>\n
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      lib\/\n  features\/\n    profile\/\n      data\/\n        profile_repository.dart     # network + cache logic\n      domain\/\n        user.dart                   # clean domain model\n      presentation\/\n        profile_screen.dart         # widget\n        profile_notifier.dart       # state\n<\/code><\/pre>\n
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        \u0627\u06cc\u0646\u0688 \u0679\u0648 \u0627\u06cc\u0646\u0688 \u0645\u062b\u0627\u0644: \u067e\u0631\u0648\u0688\u06a9\u0634\u0646 \u06af\u0631\u06cc\u0688 \u067e\u0631\u0648\u0641\u0627\u0626\u0644 \u06a9\u06cc \u0641\u0639\u0627\u0644\u06cc\u062a<\/h2>\n
        \u0627\u0633 \u0645\u0636\u0645\u0648\u0646 \u0645\u06cc\u06ba \u06c1\u0631 \u0686\u06cc\u0632 \u06a9\u0648 \u0627\u06cc\u06a9 \u062e\u0635\u0648\u0635\u06cc\u062a \u0645\u06cc\u06ba \u0645\u0644\u0627\u06cc\u0627 \u06af\u06cc\u0627 \u06c1\u06d2\u06d4 \u06a9\u06cc\u0634\u0646\u06af \u0627\u0648\u0631 \u062f\u0648\u0628\u0627\u0631\u06c1 \u06a9\u0648\u0634\u0634\u0648\u06ba \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0631\u06cc\u067e\u0648\u0632\u0679\u0631\u06cc\u0632\u060c \u067e\u0631\u0627\u0645\u06cc\u062f \u0627\u067e \u0688\u06cc\u0679\u0633 \u06a9\u06d2 \u0633\u0627\u062a\u06be \u0631\u06cc\u0648\u0631 \u067e\u0648\u0688 \u0627\u0637\u0644\u0627\u0639\u0627\u062a\u060c \u062a\u06cc\u0646\u0648\u06ba \u0631\u06cc\u0627\u0633\u062a\u0648\u06ba \u06a9\u0648 \u0633\u0646\u0628\u06be\u0627\u0644\u0646\u06d2 \u0648\u0627\u0644\u06d2 \u0648\u06cc\u062c\u0679\u060c \u0627\u0648\u0631 \u0645\u062c\u0645\u0648\u0639\u06cc \u0637\u0648\u0631 \u067e\u0631 \u0644\u0627\u0626\u0641 \u0633\u0627\u0626\u06cc\u06a9\u0644 \u06a9\u0627 \u0645\u0646\u0627\u0633\u0628 \u0627\u0646\u062a\u0638\u0627\u0645\u06d4<\/p>\n
        \u0630\u062e\u06cc\u0631\u06c1<\/h3>\n
        class ProfileRepository {\n  final Dio _dio;\n  final Box _cache;\n\n  ProfileRepository(this._dio, this._cache);\n\n  Future getUser(String userId) async {\n    try {\n      final response = await withRetry(\n        () => _dio.get('\/users\/$userId'),\n      );\n\n      final user = User.fromJson(\n        response.data as Map,\n      );\n\n      \/\/ Cache successful responses for offline fallback.\n      await _cache.put('user_$userId', user.toJson());\n\n      return user;\n    } on DioException catch (e) {\n      final cached = _cache.get('user_$userId');\n\n      if (cached != null) {\n        return User.fromJson(Map.from(cached));\n      }\n\n      if (e.type == DioExceptionType.connectionError) {\n        throw NoInternetException();\n      }\n\n      throw ServerException(e.response?.statusCode ?? 0);\n    }\n  }\n\n  Future updateDisplayName(String userId, String name) async {\n    await withRetry(\n      () => _dio.patch('\/users\/$userId', data: {'displayName': name}),\n    );\n\n    \/\/ Invalidate cache so the next read fetches fresh data.\n    await _cache.delete('user_$userId');\n  }\n}\n<\/void><\/string><\/string><\/user><\/code><\/pre>\n
        \u06cc\u0627\u062f \u062f\u06c1\u0627\u0646\u06cc<\/h3>\n
        @riverpod\nclass ProfileNotifier extends _$ProfileNotifier {\n  @override\n  AsyncValue build(String userId) {\n    _load();\n    return const AsyncValue.loading();\n  }\n\n  Future _load() async {\n    state = const AsyncValue.loading();\n    state = await AsyncValue.guard(\n      () => ref.read(profileRepositoryProvider).getUser(userId),\n    );\n  }\n\n  Future refresh() => _load();\n\n  Future updateName(String newName) async {\n    final current = state.valueOrNull;\n    if (current == null) return;\n\n    try {\n      await ref\n          .read(profileRepositoryProvider)\n          .updateDisplayName(userId, newName);\n\n      \/\/ Update the UI immediately without waiting for a reload.\n      state = AsyncValue.data(current.copyWith(displayName: newName));\n    } catch (e, st) {\n      FirebaseCrashlytics.instance.recordError(e, st);\n      \/\/ Restore the previous state if the update fails.\n      state = AsyncValue.data(current);\n      rethrow;\n    }\n  }\n}\n<\/void><\/void><\/void><\/user><\/code><\/pre>\n
        \u0648\u06cc\u062c\u06cc\u0679<\/h3>\n
        class ProfileScreen extends ConsumerWidget {\n  final String userId;\n  const ProfileScreen({required this.userId, super.key});\n\n  @override\n  Widget build(BuildContext context, WidgetRef ref) {\n    final profileAsync = ref.watch(profileNotifierProvider(userId));\n\n    return Scaffold(\n      appBar: AppBar(title: const Text('Profile')),\n      body: profileAsync.when(\n        loading: () => const Center(child: CircularProgressIndicator()),\n        error: (e, _) => _ErrorView(\n          message: e is NoInternetException\n              ? 'No internet connection.'\n              : 'Failed to load profile.',\n          onRetry: () => ref\n              .read(profileNotifierProvider(userId).notifier)\n              .refresh(),\n        ),\n        data: (user) => _ProfileView(user: user, userId: userId),\n      ),\n    );\n  }\n}\n\nclass _ProfileView extends ConsumerStatefulWidget {\n  final User user;\n  final String userId;\n  const _ProfileView({required this.user, required this.userId});\n\n  @override\n  ConsumerState<_ProfileView> createState() => _ProfileViewState();\n}\n\nclass _ProfileViewState extends ConsumerState<_ProfileView> {\n  late final TextEditingController _nameController;\n\n  @override\n  void initState() {\n    super.initState();\n    _nameController = TextEditingController(text: widget.user.displayName);\n  }\n\n  @override\n  void dispose() {\n    _nameController.dispose();\n    super.dispose();\n  }\n\n  Future _saveName() async {\n    try {\n      await ref\n          .read(profileNotifierProvider(widget.userId).notifier)\n          .updateName(_nameController.text);\n\n      if (!mounted) return;\n\n      ScaffoldMessenger.of(context).showSnackBar(\n        const SnackBar(content: Text('Name updated.')),\n      );\n    } catch (_) {\n      if (!mounted) return;\n\n      ScaffoldMessenger.of(context).showSnackBar(\n        const SnackBar(content: Text('Failed to update name.')),\n      );\n    }\n  }\n\n  @override\n  Widget build(BuildContext context) {\n    return ListView(\n      padding: const EdgeInsets.all(16),\n      children: [\n        TextField(\n          controller: _nameController,\n          decoration: const InputDecoration(labelText: 'Display name'),\n        ),\n        const SizedBox(height: 16),\n        ElevatedButton(\n          onPressed: _saveName,\n          child: const Text('Save'),\n        ),\n      ],\n    );\n  }\n}\n<\/void><\/code><\/pre>\n
        \u062d\u062a\u0645\u06cc \u062e\u06cc\u0627\u0644\u0627\u062a<\/h2>\n
        \u0627\u0633 \u0645\u06cc\u06ba \u0633\u06d2 \u06a9\u0648\u0626\u06cc \u0628\u06be\u06cc \u062e\u0627\u0635 \u0637\u0648\u0631 \u067e\u0631 \u062a\u0631\u0642\u06cc \u06cc\u0627\u0641\u062a\u06c1 \u0646\u06c1\u06cc\u06ba \u06c1\u06d2\u06d4 \u06cc\u06c1 \u0632\u06cc\u0627\u062f\u06c1 \u062a\u0631 \u0639\u0627\u062f\u062a \u06c1\u06d2\u06d4 checking mounted<\/code>, disposing controllers<\/code>, handling the error state<\/code>, caching for offline<\/code>. \u06c1\u0631 \u0639\u0627\u062f\u062a \u0622\u067e \u06a9\u0648 \u067e\u06cc\u062f\u0627\u0648\u0627\u0631 \u06a9\u06cc \u0646\u0627\u06a9\u0627\u0645\u06cc \u06a9\u06d2 \u0627\u06cc\u06a9 \u0645\u062e\u0635\u0648\u0635 \u0632\u0645\u0631\u06d2 \u0633\u06d2 \u0628\u0686\u0646\u06d2 \u0645\u06cc\u06ba \u0645\u062f\u062f \u062f\u06cc\u062a\u06cc \u06c1\u06d2 \u0627\u0648\u0631 \u0627\u06cc\u06a9 \u0627\u06cc\u0633\u06cc \u0627\u06cc\u067e \u0628\u0646\u0627\u062a\u06cc \u06c1\u06d2 \u062c\u0633 \u067e\u0631 \u0635\u0627\u0631\u0641\u06cc\u0646 \u0628\u06be\u0631\u0648\u0633\u06c1 \u06a9\u0631 \u0633\u06a9\u062a\u06d2 \u06c1\u06cc\u06ba\u06d4<\/p>\n
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        \u0644\u06cc\u06a9\u0646 \u0627\u06af\u0631 \u0622\u067e \u0627\u067e\u0646\u06cc \u067e\u06c1\u0644\u06cc \u067e\u0631\u0648\u0688\u06a9\u0634\u0646 \u0627\u06cc\u067e \u06a9\u0648 \u0631\u06cc\u0644\u06cc\u0632 \u06a9\u0631\u0646\u06d2 \u0633\u06d2 \u067e\u06c1\u0644\u06d2 \u0627\u0633\u06d2 \u067e\u0691\u06be \u0631\u06c1\u06d2 \u06c1\u06cc\u06ba\u060c \u062a\u0648 \u0627\u0628 \u0622\u067e \u06a9\u0648 \u0645\u062a\u0639\u062f\u062f \u0631\u06cc\u0644\u06cc\u0632 \u06a9\u0631\u062f\u06c1 \u0627\u06cc\u067e\u0633 \u0627\u0648\u0631 \u0628\u06c1\u062a \u0633\u06d2 \u0645\u0627\u06cc\u0648\u0633 \u06a9\u0646 \u0635\u0627\u0631\u0641 \u06a9\u06d2 \u062a\u0627\u062b\u0631\u0627\u062a \u062d\u0627\u0635\u0644 \u06a9\u0631\u0646\u06d2 \u06a9\u0627 \u0641\u0627\u0626\u062f\u06c1 \u062d\u0627\u0635\u0644 \u06c1\u0648\u06af\u0627\u06d4<\/p>\n
        \u0627\u0646 \u067e\u06cc\u0679\u0631\u0646\u0632 \u06a9\u0648 \u0634\u0627\u0645\u0644 \u06a9\u0631\u0646\u06d2 \u06a9\u0627 \u0628\u06c1\u062a\u0631\u06cc\u0646 \u0648\u0642\u062a \u0648\u06c1 \u06c1\u06d2 \u062c\u0628 \u0641\u06cc\u0686\u0631 \u0644\u0627\u0646\u0686 \u06a9\u06cc\u0627 \u062c\u0627\u0626\u06d2\u06d4 \u062f\u0648\u0633\u0631\u0627 \u0628\u06c1\u062a\u0631\u06cc\u0646 \u0648\u0642\u062a \u0627\u0628 \u06c1\u06d2\u06d4<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"
        \u0645\u06cc\u06ba \u06a9\u0626\u06cc \u0633\u0627\u0644\u0648\u06ba \u0633\u06d2 \u0641\u0644\u0679\u0631 \u0627\u06cc\u067e\u0633 \u0628\u0646\u0627 \u0631\u06c1\u0627 \u06c1\u0648\u06ba\u060c \u0627\u0648\u0631 \u0645\u062c\u06be\u06d2 \u0627\u0628 \u0628\u06be\u06cc \u06cc\u0627\u062f \u06c1\u06d2 \u06a9\u06c1 \u0645\u06cc\u06ba \u0646\u06d2 \u067e\u06c1\u0644\u06cc \u0628\u0627\u0631 \u06a9\u0648\u0626\u06cc \u067e\u0631\u0648\u0688\u06a9\u0679 \u0631\u06cc\u0644\u06cc\u0632 \u06a9\u06cc\u0627 \u062a\u06be\u0627 \u062c\u0633 \u067e\u0631 \u0645\u062c\u06be\u06d2 \u0648\u0627\u0642\u0639\u06cc \u0641\u062e\u0631 \u062a\u06be\u0627\u06d4 \u06a9\u0644\u06cc\u0646 UI\u060c \u06c1\u0645\u0648\u0627\u0631 \u0627\u06cc\u0646\u06cc\u0645\u06cc\u0634\u0646\u0632\u060c \u0627\u0648\u0631 \u0633\u0628 \u06a9\u0686\u06be \u0628\u0627\u0644\u06a9\u0644 \u0627\u0633\u06cc \u0637\u0631\u062d \u0628\u06c1\u06c1 \u06af\u06cc\u0627 \u062c\u06cc\u0633\u0627 \u0645\u06cc\u06ba \u0646\u06d2 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[…]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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