Class GNSSubscriptionParams
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Parameter opsional untuk langganan.
Lihat deklarasi properti di bawah untuk mengetahui penjelasan tentang setiap parameter.
Mewarisi NSObject.
| - (GNSDeviceTypes) deviceTypesToDiscover |
|
readwritenonatomicassign |
Jenis perangkat yang akan ditemukan.
Defaultnya adalah kGNSDeviceUsingNearby.
| - (NSString*) messageNamespace |
|
readwritenonatomicassign |
Namespace pesan yang akan dicocokkan.
String kosong adalah namespace default, dan bersifat pribadi untuk setiap aplikasi (atau aplikasi yang berbagi project Google Developers Console).
Jenis pesan yang akan dicocokkan. Tidak boleh nol. String kosong adalah jenis defaultnya.
Strategi yang digunakan untuk menemukan Perangkat di sekitar (non-beacon).
Strategi yang digunakan untuk pemindaian beacon.
| - (GNSOperationStatusHandler) statusHandler |
|
readwritenonatomiccopy |
Pengendali untuk status langganan.
Ini dapat digunakan untuk melacak status langganan yang baru dibuat.
| - (GNSPermissionRequestHandler) permissionRequestHandler |
|
readwritenonatomiccopy |
Pengendali untuk meminta izin pengguna menggunakan Di Sekitar.
Pengendali ini mengganti dialog default yang digunakan oleh Nearby; jika Anda menyediakan pengendali ini, Nearby tidak akan menampilkan dialog izinnya.
Dalam pengendali permintaan, Anda harus meminta izin pengguna untuk melakukan tugas yang memerlukan penggunaan fitur Di Sekitar, yang menjelaskan alasan penggunaannya. Jika pengguna telah memberikan atau menolak izin, Anda harus memanggil blok yang diteruskan ke pengendali permintaan. Jika Anda meneruskan YES ke dalam blok, berarti pengguna telah memberikan izin untuk mengizinkan Di Sekitar berfungsi. Jika Anda meneruskan NO, artinya pengguna belum memberikan izin; publikasi dan langganan Anda tidak akan berfungsi hingga izin diberikan.
Pengendali juga dapat digunakan sebagai metode "preflighting" untuk dialog izin iOS. Anda dapat menggunakannya untuk menjelaskan alasan pengguna diharapkan memberikan izin pada iOS sebelum aplikasi Anda dapat menjalankan fungsi terkait fitur Di Sekitar.
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, lihat Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-08-13 UTC.
[null,null,["Terakhir diperbarui pada 2025-08-13 UTC."],[[["\u003cp\u003e\u003ccode\u003eGNSSubscriptionParams\u003c/code\u003e provides optional parameters for customizing Nearby Messages subscriptions.\u003c/p\u003e\n"],["\u003cp\u003eParameters include device types, message namespace and type, discovery strategies, and handlers for status and permissions.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003estrategy\u003c/code\u003e property controls discovery of Nearby devices, while \u003ccode\u003ebeaconStrategy\u003c/code\u003e is for beacon scanning.\u003c/p\u003e\n"],["\u003cp\u003eYou can define handlers to monitor subscription status and manage user permission requests for Nearby.\u003c/p\u003e\n"],["\u003cp\u003eDefault values are provided for most parameters, simplifying basic subscription setup.\u003c/p\u003e\n"]]],[],null,["# GNSSubscriptionParams Class\n\n[Properties](#properties) \nGNSSubscriptionParams Class Reference \n\nOverview\n--------\n\nOptional parameters for a subscription.\n\nSee the property declarations below for explanations of each parameter.\n\nInherits NSObject.\n\n|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------|\n| Property Summary ---------------- ||\n| GNSDeviceTypes | [deviceTypesToDiscover](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#aa972c219c7211e4a7c5fa785d0b11274) |\n| | The types of devices to discover. [More...](#aa972c219c7211e4a7c5fa785d0b11274) |\n| ||\n| NSString \\* | [messageNamespace](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#a70e97d712c8bc53a7f9076055a91256a) |\n| | The message namespace to match. [More...](#a70e97d712c8bc53a7f9076055a91256a) |\n| ||\n| NSString \\* | [type](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#a86a3f486660ee32e5824b03fcef62533) |\n| | The message type to match. Must not be nil. The empty string is the default type. [More...](#a86a3f486660ee32e5824b03fcef62533) |\n| ||\n| [GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy) \\* | [strategy](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#a20f64cb0cfd8890f640536dfb586e814) |\n| | The strategy to use for discovering Nearby devices (non-beacons). [More...](#a20f64cb0cfd8890f640536dfb586e814) |\n| ||\n| [GNSBeaconStrategy](/nearby/messages/ios/reference/interface_g_n_s_beacon_strategy) \\* | [beaconStrategy](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#a2a2c2aecb81fef6ff47fc4204110f6da) |\n| | The strategy to use for beacon scanning. [More...](#a2a2c2aecb81fef6ff47fc4204110f6da) |\n| ||\n| GNSOperationStatusHandler | [statusHandler](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#afb1a6c67329810c58745f2f4625240cc) |\n| | A handler for subscription status. [More...](#afb1a6c67329810c58745f2f4625240cc) |\n| ||\n| GNSPermissionRequestHandler | [permissionRequestHandler](/nearby/messages/ios/reference/interface_g_n_s_subscription_params#ac037a18632caddcdb730bdb2a0f9c1b1) |\n| | A handler for requesting user permission to use Nearby. [More...](#ac037a18632caddcdb730bdb2a0f9c1b1) |\n| ||\n\nProperty Detail\n---------------\n\n|-------------------------------------------------------------------------------------------|--------------------------|\n| |------------------------------------------| | - (GNSDeviceTypes) deviceTypesToDiscover | | readwritenonatomicassign |\n\nThe types of devices to discover.\n\nThe default is `kGNSDeviceUsingNearby`. \n\n|-------------------------------------------------------------------------|--------------------------|\n| |---------------------------------| | - (NSString\\*) messageNamespace | | readwritenonatomicassign |\n\nThe message namespace to match.\n\nThe empty string is the default namespace, and is private to each app (or apps sharing a Google Developer Console project). \n\n|-------------------------------------------------|--------------------------|\n| |---------------------| | - (NSString\\*) type | | readwritenonatomicassign |\n\nThe message type to match. Must not be nil. The empty string is the default type. \n\n|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------|\n| |---------------------------------------------------------------------------------------| | - ([GNSStrategy](/nearby/messages/ios/reference/interface_g_n_s_strategy)\\*) strategy | | readwritenonatomicassign |\n\nThe strategy to use for discovering Nearby devices (non-beacons). \n\n|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------|\n| |----------------------------------------------------------------------------------------------------------| | - ([GNSBeaconStrategy](/nearby/messages/ios/reference/interface_g_n_s_beacon_strategy)\\*) beaconStrategy | | readwritenonatomicassign |\n\nThe strategy to use for beacon scanning. \n\n|-------------------------------------------------------------------------------------------------|------------------------|\n| |---------------------------------------------| | - (GNSOperationStatusHandler) statusHandler | | readwritenonatomiccopy |\n\nA handler for subscription status.\n\nIt can be used for tracking the status of a newly created subscription. \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."]]
