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offloading

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Bluetooth Logging Buffer Size
Hey guys,I'm trying to sniff some bluetooth traffic over a period of time for post-processing analysis. So far, I've followed the instructions [1] to install the profile [2] which enabled Bluetooth HCI logging and how to offload it - it's working great by the way.So far the logs all seem to be 2.5MB so I'm curious if there is a way to control the rolling buffer size.What kind of Bluetooth configuration options are available? How do I dig into this?Thanks!--James[1] https://developer.apple.com/services-account/download?path=/iOS/iOS_Logs/Bluetooth_Logging_Instructions.pdf[2] https://developer.apple.com/services-account/download?path=/iOS/iOS_Logs/iOSBluetoothLogging.mobileconfig
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1.2k
Nov ’17
Offloading task from the cooperative thread pool
Hi, When using Swift Concurrency blocking tasks like file I/O, GPU work and networking can prevent forward moving progress and have the potential to exhaust the cooperative thread pool and under utilize the CPU. It's been recommended to offload these tasks from the cooperative thread pool. Is my understanding correct that the preferred way to do this is by creating async tasks via Dispatch or OperationQueue? And combining these with Continuations if a return value from the task is required? Or should I always be using Continuations in combination with Dispatch/OperationQueue? There are also Executors but the documentation seems a bit limited on how to use these. The new TaskExecutor is also only available on the latest beta's. My question is basically what is the recommend way to offload a task? Thanks!
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761
Jun ’24
Is it possible to retrieve EXIF metadata from PHAsset without downloading photos (even if offloaded to iCloud Photo Library)?
iOS (Official) Photos app can display some EXIF-related metadata (e.g. camera and lens info, ISO, shutter speed, F-number) even when photos are offloaded to iCloud and the device is not connected to internet (e.g. airplane mode). However, with the Photos.framework, we need to download photos to retrive those metadata (which means it will not work with airplane mode). I tried the following methods, but none of those worked when photos were offloaded to iCloud and the device was in airplane mode: Requesting data with PHImageManager.default().requestImageDataAndOrientation Result: It does not return Data if the photo is not stored locally on the device, even with options.deliveryMode = .fastFormat Converting PHAsset#localIdentifier to an AssetsLibrary.framework URL (assets-library://asset/...) (I am aware that AssetsLibrary.framework is deprecated, but this was just a test.) Result: If PHImageManager does not returns Data, ALAsset#defaultRepresentation().metadata() returns an empty NSDictionary
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619
Nov ’24
Need Resources: Kernel and SpoghtlightNetHelper Unauthorized System Access
To Whom It May Concern:I apparently have a self propagating virus that was introduced to my network by purchase of a used Mac computer from Amazon.com on approximately December 24, 2015. That is when I first started noticing erratic behavior on my machines. I have clean formatted and reinstalled OS from computers on an isolated network that was not infected. As soon as I connect the newly reinstalled OS iMacs to the infected network they become reinfected on first boot. I've spent something like 40 labor hours on this so far and I can't afford anymore resource allocation to this issue until there are some steps to cure the system.This activity on my computer appears to be a nasty virus. From what I can tell, it tries injecting itself in every executable it can locate. It trys to obtain the icloud login credentials, it attempts to obtain administrator credentials, and on one computer it appears to have secured and stolen my credentials to completely hijack the computer. Once it hijacks the computer it deletes
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1.4k
Jan ’16
App quits right after launching
Since iOS 14, more and more users experience a severe problem: When they launch our app, it quits right after showing the launch screen, obviously even before executing one line of code. In some cases, offloading and re-loading the app can help in this situation, but not always. In iOS 13, the problem occurred in the same way, but offloading and re-loading always helped. This seems to be a licence problem and reinstalling is no option, because our app holds critical personal data that the user often did not backup. So what can we do in this situation?
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617
Nov ’20
How to track offloaded apps (Offload Unused Apps) and push behavior?
Hi, I have a couple of questions regarding the “Offload Unused Apps” feature in iOS: 1. Is there a way to track how many users have offloaded our app? • We’re looking to understand whether Apple provides any visibility — via App Store Connect, analytics, or any API — into how often the app has been offloaded on user devices. • Specifically, we’d like to know if there’s any way to count devices that have our app offloaded (app binary removed but data retained). 2. Will push notifications still work if the app is offloaded? • Does iOS still deliver push notifications to the device if the app is offloaded? • If a user taps a notification for an offloaded app, will the app reinstall and open automatically? If there are any recommended best practices for handling offloaded app states or detecting reinstalls via push or analytics, that would be helpful too. Thanks in advance!
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58
Nov ’25
Need Resources: Kernel and SpoghtlightNetHelper Unauthorized System Access
To Whom It May Concern:I apparently have a self propagating virus that was introduced to my network by purchase of a used Mac computer from Amazon.com on approximately December 24, 2015. That is when I first started noticing erratic behavior on my machines. I have clean formatted and reinstalled OS from computers on an isolated network that was not infected. As soon as I connect the newly reinstalled OS iMacs to the infected network they become reinfected on first boot. I've spent something like 40 labor hours on this so far and I can't afford anymore resource allocation to this issue until there are some steps to cure the system.This activity on my computer appears to be a nasty virus. From what I can tell, it tries injecting itself in every executable it can locate. It trys to obtain the icloud login credentials, it attempts to obtain administrator credentials, and on one computer it appears to have secured and stolen my credentials to completely hijack the computer. Once it hijacks the computer it deletes
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2.3k
Jan ’16
CLLocationManager and WatchKit Extension Best Practices
Can anyone here point me in the right direction if I want to continuously update the user's location in my WatchKit Extension? I know the interface exposed in CLLocationManager in watchOS 2 only allows for one-shot updates, so presumably I'll need to offload that to the iOS app. The Potloc sample code is a good starting point for doing that, but is there anywhere that explicitly spells out the requirements? Do I need to include the usage key in the info plist in both my extension and the iOS app? Do I need to set allowsBackgroundLocationUpdates to YES in the iOS app and include the background mode for the iOS app to get location updates to provide to my extension? (I assume yes to both, but just want to check)
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365
Dec ’15