我正在尝试发现 ibeacon。我在 iPhone 4s 上运行应用程序。设备蓝牙已打开。信标也在其他 iOS 应用程序中发现。 当我在调用委托(delegate)“centralManagerDidUpdateState”之后搜索服务并且状态为“On”之后没有任何反应。预计应该调用“didDiscoverPeripheral”，但没有任何反应。我在这里做错了什么？
Hi,
import UIKit
import FBSDKLoginKit
import SwiftQRCode
import CoreBluetooth
@objc
class DashboardViewController: UIViewController {
var myCentralManager:CBCentralManager!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
myCentralManager = CBCentralManager(delegate: self, queue: nil)
// let options = [CBCentralManagerScanOptionAllowDuplicatesKey:true]
myCentralManager.scanForPeripheralsWithServices(nil, options: nil)
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.navigationBar.hidden = true
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
// MARK: CBCentralManagerDelegate
extension DashboardViewController: CBCentralManagerDelegate {
func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber) {
peripheral.delegate = self
// if peripheral.state == CBPeripheralState.Disconnected {
//
// central.connectPeripheral(peripheral, options: nil)
// }
}
func centralManager(central: CBCentralManager, didConnectPeripheral peripheral: CBPeripheral) {
peripheral.delegate = self
peripheral.discoverServices(nil)
}
func centralManager(central: CBCentralManager, didDisconnectPeripheral peripheral: CBPeripheral, error: NSError?) {
}
func centralManager(central: CBCentralManager, didFailToConnectPeripheral peripheral: CBPeripheral, error: NSError?) {
}
}
// MARK: CBCentralManagerDelegate
extension DashboardViewController: CBPeripheralDelegate {
func centralManagerDidUpdateState(central: CBCentralManager) {
switch central.state{
case CBCentralManagerState.PoweredOn:
print("On.")
break
case CBCentralManagerState.PoweredOff:
print("Off.")
break
case CBCentralManagerState.Resetting:
print("Resetting.")
break
case CBCentralManagerState.Unauthorized:
print("Unauthorized.")
break
case CBCentralManagerState.Unknown:
print("Unknown.")
break
case CBCentralManagerState.Unsupported:
print("Unsupported.")
break
}
}
func peripheral(peripheral: CBPeripheral, didDiscoverServices error: NSError?) {
for service in peripheral.services!{
peripheral.discoverCharacteristics(nil, forService: service)
}
}
func peripheral(peripheral: CBPeripheral, didDiscoverCharacteristicsForService service: CBService, error: NSError?) {
for charactristics in service.characteristics!{
peripheral.setNotifyValue(true, forCharacteristic: charactristics)
}
}
func peripheral(peripheral: CBPeripheral, didUpdateNotificationStateForCharacteristic characteristic: CBCharacteristic, error: NSError?) {
if characteristic.isNotifying {
print("Notifying...")
}
}
func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) {
print(characteristic.value)
}
}
无法使用 CoreBluetooth APIs 和 CBCentralManager 类检测 iBeacons，如代码所示。虽然 iBeacon 是蓝牙 LE 设备，但 Apple has security blocks that prevent iOS devices from reading the raw advertisement data使用 didConnectPeripheral 回调。
如果您想在 iOS 上检测 iBeacons，您必须使用 CoreLocation API。您可以阅读有关如何执行此操作的更多信息 here.
关于ios - 信标没有发现 iOS，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33451595/
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