إعداد "إدارة الاتصال"
يتعامل مدير الاتصال مع جميع أحداث الاتصال وهو واجهة نقل البيانات بين الأجهزة وهو شرط أساسي في الإعلانين والاكتشاف.
أولاً، يجب اختيار معرّف الخدمة لتعريف تطبيقك بشكل فريد. من أفضل الألعاب
يُرجى استخدام اسم حزمة تطبيقك (على سبيل المثال، com.example.app
).
بعد ذلك، اختَر استراتيجية لحالة الاستخدام. تشير رسالة الأشكال البيانية
تحدِّد الاستراتيجية التي تختارها طوبولوجيا الربط لتطبيقك (.cluster
،
.star
.pointToPoint
).
تهيئة مدير الاتصال وتنفيذ طرق التفويض:
Swift
import NearbyConnections
class Example {
let connectionManager: ConnectionManager
init() {
connectionManager = ConnectionManager(serviceID: "com.example.app", strategy: .cluster)
connectionManager.delegate = self
}
}
extension Example: ConnectionManagerDelegate {
func connectionManager(
_ connectionManager: ConnectionManager, didReceive verificationCode: String,
from endpointID: EndpointID, verificationHandler: @escaping (Bool) -> Void) {
// Optionally show the user the verification code. Your app should call this handler
// with a value of `true` if the nearby endpoint should be trusted, or `false`
// otherwise.
verificationHandler(true)
}
func connectionManager(
_ connectionManager: ConnectionManager, didReceive data: Data,
withID payloadID: PayloadID, from endpointID: EndpointID) {
// A simple byte payload has been received. This will always include the full data.
}
func connectionManager(
_ connectionManager: ConnectionManager, didReceive stream: InputStream,
withID payloadID: PayloadID, from endpointID: EndpointID,
cancellationToken token: CancellationToken) {
// We have received a readable stream.
}
func connectionManager(
_ connectionManager: ConnectionManager,
didStartReceivingResourceWithID payloadID: PayloadID,
from endpointID: EndpointID, at localURL: URL,
withName name: String, cancellationToken token: CancellationToken) {
// We have started receiving a file. We will receive a separate transfer update
// event when complete.
}
func connectionManager(
_ connectionManager: ConnectionManager,
didReceiveTransferUpdate update: TransferUpdate,
from endpointID: EndpointID, forPayload payloadID: PayloadID) {
// A success, failure, cancelation or progress update.
}
func connectionManager(
_ connectionManager: ConnectionManager, didChangeTo state: ConnectionState,
for endpointID: EndpointID) {
switch state {
case .connecting:
// A connection to the remote endpoint is currently being established.
case .connected:
// We're connected! Can now start sending and receiving data.
case .disconnected:
// We've been disconnected from this endpoint. No more data can be sent or received.
case .rejected:
// The connection was rejected by one or both sides.
}
}
}
بدء عرض الإعلانات
لبدء عرض الإعلانات، يجب تهيئة المعلن، وتنفيذ أساليب التفويض،
وأجرِ مكالمة مع startAdvertising(using:)
.
Swift
import NearbyConnections
class Example {
let connectionManager: ConnectionManager
let advertiser: Advertiser
init() {
connectionManager = ConnectionManager(serviceID: "com.example.app", strategy: .cluster)
connectionManager.delegate = self
advertiser = Advertiser(connectionManager: connectionManager)
advertiser.delegate = self
// The endpoint info can be used to provide arbitrary information to the
// discovering device (e.g. device name or type).
advertiser.startAdvertising(using: "My Device".data(using: .utf8)!)
}
}
extension Example: AdvertiserDelegate {
func advertiser(
_ advertiser: Advertiser, didReceiveConnectionRequestFrom endpointID: EndpointID,
with context: Data, connectionRequestHandler: @escaping (Bool) -> Void) {
// Accept or reject any incoming connection requests. The connection will still need to
// be verified in the connection manager delegate.
connectionRequestHandler(true)
}
}
بدء "اقتراحات"
لبدء الاكتشاف، قم بتهيئة المكتشف، وتنفيذ أساليب التفويض،
وأجرِ مكالمة مع startDiscovery()
.
Swift
import NearbyConnections
class Example {
let connectionManager: ConnectionManager
let discoverer: Discoverer
init() {
connectionManager = ConnectionManager(serviceID: "com.example.app", strategy: .cluster)
connectionManager.delegate = self
discoverer = Discoverer(connectionManager: connectionManager)
discoverer.delegate = self
discoverer.startDiscovery()
}
}
extension Example: DiscovererDelegate {
func discoverer(
_ discoverer: Discoverer, didFind endpointID: EndpointID, with context: Data) {
// An endpoint was found.
}
func discoverer(_ discoverer: Discoverer, didLose endpointID: EndpointID) {
// A previously discovered endpoint has gone away.
}
}