GNSPublicationParams 类
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
发布内容的可选参数。
请参阅下面的属性声明，了解每个参数的说明。
此类继承 NSObject。
| - (GNSOperationStatusHandler) statusHandler |
|
readwritenonatomiccopy |
发布状态的处理程序。
它可用于跟踪新创建的发布内容的状态。
| - (GNSPermissionRequestHandler) permissionRequestHandler |
|
readwritenonatomiccopy |
用于请求用户使用“附近”功能的权限的处理程序。
此处理程序会覆盖“附近”功能使用的默认对话框；如果您提供此处理程序，“附近”功能将不会显示其权限对话框。
在请求处理程序中，您应请求用户授予执行需要使用“附近”功能的任务的权限，并说明使用该功能的原因。当用户表示或拒绝后，您必须调用传入请求处理程序的代码块。如果您将 YES 传递到代码块中，则表示用户已同意启用“附近”功能。如果您传递 NO，则表示用户未同意；只有在征得用户同意后，您的发布内容和订阅才能正常运行。
处理程序还可用作 iOS 权限对话框的“预检”方法。您可以用它来解释为什么需要用户同意 iOS 权限，您的应用才能执行其“附近分享”相关功能。
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最后更新时间 (UTC)：2025-08-13。
[null,null,["最后更新时间 (UTC)：2025-08-13。"],[[["\u003cp\u003eGNSPublicationParams provides optional parameters for configuring message publications in Nearby Messages.\u003c/p\u003e\n"],["\u003cp\u003eIt allows customization of the publication strategy, status handling, and user permission requests.\u003c/p\u003e\n"],["\u003cp\u003eA \u003ccode\u003estrategy\u003c/code\u003e property defines how the message is published, with a default strategy available.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003estatusHandler\u003c/code\u003e and \u003ccode\u003epermissionRequestHandler\u003c/code\u003e properties enable monitoring publication status and managing user permissions, respectively.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can override the default permission dialog by providing a custom \u003ccode\u003epermissionRequestHandler\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["# GNSPublicationParams Class\n\n[Properties](#properties) \nGNSPublicationParams Class Reference \n\nOverview\n--------\n\nOptional parameters for a publication.\n\nSee the property declarations below for explanations of each parameter.\n\nInherits NSObject.\n\n|---------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Property Summary ---------------- ||\n| [GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy) \\* | [strategy](/nearby/messages/ios/reference/interface_g_n_s_publication_params#aa5b307ccee2b3c5214cde08cd2bfb7e4) |\n| | The strategy to use for publishing the message. See [GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy \"The strategy to use to detect nearby devices. \") for the default. [More...](#aa5b307ccee2b3c5214cde08cd2bfb7e4) |\n| ||\n| GNSOperationStatusHandler | [statusHandler](/nearby/messages/ios/reference/interface_g_n_s_publication_params#a59b5094d5f639371724e7475defb6b63) |\n| | A handler for publication status. [More...](#a59b5094d5f639371724e7475defb6b63) |\n| ||\n| GNSPermissionRequestHandler | [permissionRequestHandler](/nearby/messages/ios/reference/interface_g_n_s_publication_params#a09124c8fa69e5b3dc46c4d102eddb0b1) |\n| | A handler for requesting user permission to use Nearby. [More...](#a09124c8fa69e5b3dc46c4d102eddb0b1) |\n| ||\n\nProperty Detail\n---------------\n\n|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------|\n| |---------------------------------------------------------------------------------------| | - ([GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy)\\*) strategy | | readwritenonatomicassign |\n\nThe strategy to use for publishing the message. See [GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy \"The strategy to use to detect nearby devices. \") for the default. \n\n|-------------------------------------------------------------------------------------------------|------------------------|\n| |---------------------------------------------| | - (GNSOperationStatusHandler) statusHandler | | readwritenonatomiccopy |\n\nA handler for publication status.\n\nIt can be used for tracking the status of a newly created publication. \n\n|---------------------------------------------------------------------------------------------------------------------------|------------------------|\n| |----------------------------------------------------------| | - (GNSPermissionRequestHandler) permissionRequestHandler | | readwritenonatomiccopy |\n\nA handler for requesting user permission to use Nearby.\n\nThis handler overrides the default dialog used by Nearby; if you supply this handler, Nearby will not show its permission dialog.\n\nIn your request handler, you should request the user's permission to perform the task that requires the use of Nearby, explaining why it's being used. When the user has given or denied consent, you must call the block that's passed into your request handler. If you pass `YES` into the block, it means the user has consented to allow Nearby to function. If you pass `NO`, it means the user has not consented; your publications and subscriptions will not work until consent has been given.\n\nThe handler can also be used as a method of \"preflighting\" for the iOS permission dialogs. You can use it to explain why the user is expected to consent to the iOS permissions before your app can perform its Nearby related functions."]]
