CBService changed: How handle this in iOS 14 and 15?

Question

Building my app with Xcode 13, a dependency threw an error related to the changes in CoreBluetooth: Some properties are now returned as optionals in iOS 15.

Wanting to fix that, I would like to make sure that the library will run on both iOS 15 and SDKs prior to that, but the current availability markers will not help me:

    func peripheralManager(_ peripheral: CBPeripheralManager, didAdd service: CBService, error: Error?) {
        let peripheral: CBPeripheral

        // So what I would like is something like this
        // But this does not work :(

        if  #available(iOS 15, *) {
            guard let nonOptional = service.peripheral else {
                return
            }
            peripheral = nonOptional
        } else {
            peripheral = service.peripheral
        }

        let result: CBPeripheral = peripheral
        print ("\(result)")
    }```

This code will cause the compiler to throw an error both on Xcode 13 and Xcode 12. 

Is there any good way to solve this?

2.2k

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Answer 1

Can you try something like this?

    func peripheralManager(_ peripheral: CBPeripheralManager, didAdd service: CBService, error: Error?) {
        let optPeripheral: CBPeripheral? = service.peripheral
        guard let peripheral = optPeripheral else {
            return
        }

        let result: CBPeripheral = peripheral
        print ("\(result)")
    }

Posted by

OOPer

Thank you! That worked!

—
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Answer 2

Can you try something like this?

    func peripheralManager(_ peripheral: CBPeripheralManager, didAdd service: CBService, error: Error?) {
        let optPeripheral: CBPeripheral? = service.peripheral
        guard let peripheral = optPeripheral else {
            return
        }

        let result: CBPeripheral = peripheral
        print ("\(result)")
    }

Posted by

OOPer

Thank you! That worked!

—
below

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CBService changed: How handle this in iOS 14 and 15?

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