Kelas GNSPermission
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Simpan dan kategorikan konten berdasarkan preferensi Anda.
Class ini memungkinkan Anda mengelola status izin Berbagi Langsung untuk aplikasi di perangkat saat ini.
Pengguna harus memberikan izin sebelum publikasi dan langganan dapat berfungsi. Saat pertama kali aplikasi membuat publikasi atau langganan, dialog izin Berbagi Langsung akan otomatis ditampilkan, sehingga pengguna memiliki kesempatan untuk memilih ikut serta. Jika pengguna menolak, pemberitahuan akan ditampilkan setiap kali publikasi atau langganan dibuat, sehingga memberi mereka kesempatan lain untuk memilih ikut serta.
Sebaiknya aplikasi Anda menyediakan metode kepada pengguna untuk mengaktifkan atau menonaktifkan izin; misalnya, dengan menggunakan tombol alih di halaman setelan. Saat pengguna mengalihkannya, aplikasi harus memanggil metode isGranted dan setGranted di bawah untuk mengalihkan status izin.
Untuk melacak status izin, buat objek GNSPermission dan teruskan pengendali yang diubah. Pengendali akan dipanggil setiap kali status izin berubah, sehingga UI aplikasi Anda tetap sinkron dengan status saat ini.
Mewarisi NSObject.
| - (instancetype) initWithChangedHandler: |
|
(GNSPermissionHandler) |
changedHandler |
|
Menginisialisasi objek izin dengan pengendali yang dipanggil setiap kali status izin berubah.
Pengendali memungkinkan aplikasi menjaga UI-nya tetap sinkron dengan status izin. Pengendali tidak dipanggil sampai pengguna menyetujui atau menolak izin.
- Parameters
-
| handler | The permission granted handler |
Apakah izin Berbagi Langsung saat ini diberikan untuk aplikasi di perangkat ini.
YA berarti pengguna telah memberikan izin Berbagi Langsung, dan TIDAK berarti pengguna telah menolak izin. Jika izin tidak diberikan, publikasi dan langganan tidak akan berfungsi.
| + (void) setGranted: |
|
(BOOL) |
granted |
|
Mengubah status izin Di Sekitar.
Ini hanya boleh dipanggil sebagai respons terhadap tindakan pengguna dalam mengubah status izin.
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\u003eThe \u003ccode\u003eGNSPermission\u003c/code\u003e class manages the Nearby permission state for your app, enabling features like publications and subscriptions.\u003c/p\u003e\n"],["\u003cp\u003eUsers must grant Nearby permission for these features to function; the system automatically requests this permission when needed.\u003c/p\u003e\n"],["\u003cp\u003eYou can track and react to permission state changes using a \u003ccode\u003eGNSPermission\u003c/code\u003e object with a change handler.\u003c/p\u003e\n"],["\u003cp\u003eProvide a UI element, like a toggle switch, allowing users to control the Nearby permission and update the state using \u003ccode\u003eisGranted\u003c/code\u003e and \u003ccode\u003esetGranted\u003c/code\u003e methods.\u003c/p\u003e\n"],["\u003cp\u003eThe initial permission request is automatic, but subsequent requests depend on the user's previous choice and your app's UI for toggling the permission.\u003c/p\u003e\n"]]],[],null,["# GNSPermission Class\n\n[Instance Methods](#pub-methods) \\| [Class Methods](#pub-static-methods) \nGNSPermission Class Reference \n\nOverview\n--------\n\nThis class lets you manage the Nearby permission state for the app on the current device.\n\nThe user must grant permission before publications and subscriptions will work. The first time the application creates a publication or subscription, the Nearby permission dialog is automatically displayed, giving the user the opportunity to opt in. If the user denies, an alert will be displayed each time a publication or subscription is subsequently created, giving them another chance to opt in.\n\nIt is recommended that your app provide the user a method for switching the permission on or off; for instance, by using a toggle switch in a settings page. When the user toggles it, the app should call the `isGranted` and `setGranted` methods below to toggle the permission state.\n\nTo track the permission state, create a [GNSPermission](/nearby/messages/ios/reference/interface_g_n_s_permission \"This class lets you manage the Nearby permission state for the app on the current device...\") object and pass in a changed handler. The handler will be called whenever the permission state is changed, allowing your app's UI to be kept in sync with the current state.\n\nInherits NSObject.\n\n|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Instance Method Summary ----------------------- ||\n| (instancetype) | - [initWithChangedHandler:](/nearby/messages/ios/reference/interface_g_n_s_permission#a28317128a0274fd2f24c8e21456f2276) |\n| | Initializes the permission object with a handler that is called whenever the permission state changes. [More...](#a28317128a0274fd2f24c8e21456f2276) |\n| ||\n\n|--------|--------------------------------------------------------------------------------------------------------------------------|\n| Class Method Summary -------------------- ||\n| (BOOL) | + [isGranted](/nearby/messages/ios/reference/interface_g_n_s_permission#aef0ec5cb0489597c5e90a7af81b4b574) |\n| | Whether Nearby permission is currently granted for the app on this device. [More...](#aef0ec5cb0489597c5e90a7af81b4b574) |\n| ||\n| (void) | + [setGranted:](/nearby/messages/ios/reference/interface_g_n_s_permission#a115c4964d2f1b5317bf888cb40b6e0bf) |\n| | Changes the Nearby permission state. [More...](#a115c4964d2f1b5317bf888cb40b6e0bf) |\n| ||\n\nMethod Detail\n-------------\n\n|------------------------------------------|---|------------------------|------------------|---|\n| - (instancetype) initWithChangedHandler: | | (GNSPermissionHandler) | *changedHandler* | |\n\nInitializes the permission object with a handler that is called whenever the permission state changes.\n\nThe handler lets the app keep its UI in sync with the permission state. The handler is not called until the user has approved or denied permission.\n\nParameters\n:\n\n |---------|--------------------------------|\n | handler | The permission granted handler |\n\n\n|--------------------|---|---|---|\n| + (BOOL) isGranted | | | |\n\nWhether Nearby permission is currently granted for the app on this device.\n\nYES means the user has granted Nearby permission, and NO means the user has denied permission. If permission has not been granted, publications and subscriptions will not work. \n\n|----------------------|---|--------|-----------|---|\n| + (void) setGranted: | | (BOOL) | *granted* | |\n\nChanges the Nearby permission state.\n\nThis should be called only in response to the user action of changing the permission state."]]
