iOS 10 open bluetooth settings

BLE Beacons
1

Before iOS 10 it was possible to open bluetooth settings via:

UIApplication.shared.openURL(URL(string: "prefs:root=Bluetooth")!)

This no longer works in iOS 10.

However the Estimote demo app on iOS 10 is still able to open the bluetooth preferences.

How does it do that?

2

Hello!

You need to try:

UIApplication.shared.openURL(URL(string:UIApplicationOpenSettingsURLString)!)

Does it help?

Kate
IT Craft (https://itechcraft.com)

3

Hi Kateryna,

thanks for your answer.

However, UIApplicationOpenSettingsURLString opens the app’s settings and not the bluetooth settings.

As I want the user to enable bluetooth that doesn’t help and is rather confusing.

4

The prompt in the iOS app is actually from initializing CBCentralManager with the CBCentralManagerOptionShowPowerAlertKey option enabled.

https://developer.apple.com/reference/corebluetooth/cbcentralmanager/1519001-init

https://developer.apple.com/reference/corebluetooth/cbcentralmanageroptionshowpoweralertkey

Since this is from Apple’s own Core Bluetooth framework, I guess it might be using some private API.

5

Thanks Piotr,

that seems to be exactly what I need.

I’ve read the docs and tried a bunch of different implementations but the alert never shows up.

This is how I’m initializing:

bm = CBCentralManager(delegate: self, queue: nil, options: [ CBCentralManagerOptionShowPowerAlertKey: true ])

any ideas?