我想在 BLE 设备发生某些事情时得到通知。如果 BLE 设备将一些数据/命令传递给应用程序,则应用程序内的广告数据不会更改。但是我们可以用 android 做同样的事情,它工作得很好。我想实现功能,比如当广告数据发生变化时我想得到通知。请帮我实现这一点。下面是我的 AppDelegate.swift 类。
private var centralManager : CBCentralManager!
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
centralManager = CBCentralManager(delegate: self, queue: nil, options: nil)
return true
}
func applicationWillEnterForeground(_ application: UIApplication) {
print("entering foreground...")
}
func applicationDidEnterBackground(_ application: UIApplication) {
print("entered background...")
centralManager = CBCentralManager(delegate: self, queue: nil, options: nil)
}
func centralManagerDidUpdateState(_ central: CBCentralManager) {
if central.state == .poweredOn {
print("Bluetooth is On")
let kTrackStandardDeviceInfoServiceUUID = CBUUID(string: "180A")
let dictionaryOfOptions = [CBCentralManagerScanOptionAllowDuplicatesKey : true]
let arrayOfServices: [CBUUID] = [kTrackStandardDeviceInfoServiceUUID]
centralManager.scanForPeripherals(withServices: arrayOfServices, options: dictionaryOfOptions)
} else {
print(central.state)
}
}
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
print("\nName : \(peripheral.name ?? "(No name)")")
print("RSSI : \(RSSI)")
let name = peripheral.name ?? ""
if name.contains("ETGuardian") {
let DetailData = advertisementData["kCBAdvDataManufacturerData"]
let DiscoveredData = String(describing: DetailData)
print(DiscoveredData)
for ad in advertisementData {
print("AD Data: \(ad)")
}
}
}