I’ve constructed a static library in Swift that handles Bluetooth Low Power (BLE) operations like scanning, connection, and authentication. Once I import this library into my undertaking and use it to scan for units for 2 seconds, if units are discovered, I connect with the closest gadget. Nonetheless, after scanning for 2 seconds, when I attempt to cease scanning utilizing the centralManager.stopScan() methodology, it returns nil.
This is how I am utilizing the library for my part:
import MYStaticLib
@ObservedObject personal var myBLEController = BluetoothViewController()
DispatchQueue.principal.asyncAfter(deadline: .now() + 2.0) {
myBLEController.stopScanning()
if myBLEController.devicesFound.depend > 0 {
print("Units Discovered : (myBLEController.devicesFound.depend)")
print("Gadget With Minimal Distance : (myBLEController.devicesDistance.min()!)")
print("Gadget With Minimal Distance Index : (myBLEController.returnLowestValueIndex())")
myBLEController.gadget = myBLEController.devicesFound[myBLEController.devicesDistance.returnLowestValueIndex()]
self.join(dev: myBLEController.gadget!, uida: uida)
}
}
And here is the code for the BluetoothViewController class inside the library:
class BluetoothViewController: UIViewController, ObservableObject, CBCentralManagerDelegate, CBPeripheralDelegate {
personal var centralManager: CBCentralManager!
var gadget: CBPeripheral?
@Revealed var devicesFound : [CBPeripheral] = []
var devicesDistance : Array<Int> = []
func startScanning () {
if isBluetoothOn {
devicesFound = []
centralManager.scanForPeripherals(withServices: [])
}
}
func stopScanning (){
centralManager.stopScan()
}
func join(dev:CBPeripheral, uida : String){
centralManager.join(dev,choices: nil)
}
}
extension BluetoothViewController {
// All Delegate strategies
func centralManagerDidUpdateState(_ central: CBCentralManager) {}
// didDiscover
// didConnect
}
The difficulty I am going through is that if I create this controller inside the app, it really works advantageous. Nonetheless, once I use it inside the library, it throws an exception.
Can anybody assist me perceive what is perhaps inflicting this difficulty and the way I can resolve it?
Tags: swift, bluetooth-lowenergy, static-library, centralmanager, coredatadelegate
