Questions tagged [ble-state-preservation]
8 questions
18
votes
0 answers
Unable to trigger state restoration code for BLE on iOS
I am trying to get my app to respond relaunch into the background is response to discovering an advertising peripheral.
The following code currently works in my app (in foreground + background, even after many hours of being…
wheresmycookie
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11
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2 answers
How to trigger Core Bluetooth state preservation and restoration
State Preservation and Restoration Because state preservation and
restoration is built in to Core Bluetooth, your app can opt in to this
feature to ask the system to preserve the state of your app’s central
and peripheral managers and to…
mm24
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3
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1 answer
protectedDataAvailable always true
From what I understand, UIApplication.sharedApplication().protectedDataAvailable should return false when the phone is locked and protected data is enabled on the iPhone (apparently setting a passcode enables it).
However, despite of the scenario,…
Lee Andrew
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2
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1 answer
CoreBluetooth state preservation: correct way to restore CBCentralManager
what is the correct way to restore the CBCentralManager from AppDelegate when the App gets lunched with options due to a state preservation event?
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary…
mm24
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Since I activated BLE State preservation my app drains all the battery
I got an app that is connected to a BLE peripheral. It implements state-preservation and restoration for BLE and keeps the connection in background.
When I leave the phone next to the peripheral the peripheral shows that there is an active…
mm24
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Is there a way to accurately measure the impact of "Bluetooth state preservation" on an app energy usage?
I would like to monitor the energy usage granularly and measure the impact of Bluetooth State preservation and restoration for background processing in iOS.
I'd like to measure the impact of iOS keeping "the" connection active to a Bluetooth…
mm24
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Core Bluetooth State Preservation and restoration not working properly
I have followed the state preservation and restoration in the wwdc video - https://developer.apple.com/videos/play/wwdc2013/703/
The issue Im having is that after the app is closed by the OS, when the BLE device goes out of range. The OS doesn't…
user2636368
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Bluetooth BLE state preservation: CBCentralManager won't discover services whilst in background
EDIT:
Following @RobertVaessen comment I implemented the following, however I am still unable to discover the services of the connected peripheral.
-(void) centralManager:(CBCentralManager *)central willRestoreState:(NSDictionary…
mm24
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