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How to implement background asset downloading feature?
I want to use features described in the background assets WWDC22 session (https://developer.apple.com/videos/play/wwdc2022/110403/). In earlier versions of Xcode 14 beta there used to be a background asset extension target type, however this got removed in beta 5 and has still not been put back even though Xcode 14 RC is released. With Xcode 14 beta 4, if the background asset target was chosen then a bunch of template code was created, same as happens with any extension type. But if the background asset extension target type isn't even present in the Xcode 14 RC, how is one supposed to create an extension and use this new feature?
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1.6k
Dec ’22
Why does the usernotifications.filtering entitlement stop UIScreen.main.bounds from working?
If UIScreen.main.bounds is called from within a notification service extension then the values returned as as you'd expect. But then if the com.apple.developer.usernotifications.filtering entitlement is added to the extension the values returned are (0.0,0.0,0.0,0.0). Why is that, why does this entitlement stop UIScreen.main.bounds from working?
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647
Sep ’22
Xcode 14.1 beta: How do you run the backgroundassets-debug command?
If I run "man backgroundassets-debug" I get instructions/help/comments for using the backgroundassets-debug tool to simulate the background assets download framework (which has been added back to Xcode 14.1 beta 1 after being removed from Xcode 14 beta 3) But how do you actually run the backgroundassets-debug tool itself? "backgroundassets-debug -h" for example results in a command not found message. I tried searching for the tool within the Xcode 14.1 package but can't see it anywhere running "xcode-select -p" displays "/Applications/Xcode-beta.app/Contents/Developer" And "xcode-select -v" displays "xcode-select version 2395" Within Xcode preferences, command line tools is set to Xcode-beta 14.1
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958
Sep ’22
Issues with https auth challenge and background asset download extension
I'm trying to get a background asset extension working with iOS 16.1/Xcode 14.1. I'm able to succesfully download a file when using BADownloadManger from within the app, but not if the extension tries to download the same file. I've discovered its not possible to use a url with http for the asset download as the OS performs a check and throws an exception saying only https is accepted. However when you use a https url there's an authentication challenge. I implemented the auth challenge method of BADownloadManagerProtocol within the app (it completes with AuthChallengeDisposition.performDefaultHandling) and the file is sucessfully able to be downloaded when the download is initiated from within the app. However, the same file cannot be downloaded when its downloaded from the extension. I implemented the BADownloaderExtension: didReceive challenge method within the extension (which returns the same thing, AuthChallengeDisposition.performDefaultHandling) however when the extension is attempted to be invokved (using the backgroundassets-debug command line tool) then the handset logs this: Failed to send -[BADownloaderExtensionProxy sendAuthenticationChallenge:download:completionHandler:]_block_invoke and the download fails. Why does the download succeed from the app but not from the extension? Why is the OS saying it can't send the auth challenge when I'm implemented the relevant method of BADownloaderExtension?
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507
Oct ’22
How to view TSIs?
In this section of this web site https://developer.apple.com/account/#CodeLevelSupportCard its possible to view a historical list of submitted TSIs, but there's nothing in their content which is clickable. Looking around elsewhere, there doesn't appear to be anywhere or anyway to view the original question and the responses in submitted TSIs? Is that really the case, or is there a bug in the Apple web site and they are supposed to be viewable?
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1.5k
Sep ’23
iOS 16.1 is setting Personal Focus Smart Activation to be on by default - is there a way an app can detect if a focus mode currently active or not
As a user, I've been hit several times missing calls and notifications when I was expecting them. I've just figured out why that is - its because iOS 16.1 is automatically setting Smart Activation to on for Personal Focus. So I kept missing phone calls because the iPhone had been turning on Personal Focus when I was unaware it was. As well as blocking calls, it also doesn't display any notification. (I never use this focus feature, I didn't even know it existed until now, so for it to be enabled by default is absolutely ridiculous behavior. This is iOS 16.1 beta yet but its so close to the release date of 16.1 it must be the final behavior). Now with my developer hat on, I would like my application to detect if notifications are being suppressed due to a focus's do not disturb. Is there an API available for an app to determine if a notification has not been displayed to the user due to this for non communication type apps? Just a regular app that receives user-directed push messages and needs to know if they were displayed to the user.
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1.4k
Oct ’22
What is an applicationName token?
I'm looking at this tutorial on app intents and shortcuts: https://arctouch.com/blog/implementing-app-shortcuts-intents And it says "Each phrase also has to contain your app name. To make it easier, you can provide the system with a list of synonyms for your app name and then use the applicationName token instead of your app name as a string literal" But it doesn't provide an example of using an applicationName token. I've tried searching for this but can't find anything. What is the applicationName token and what might an example of it being used be in a shortcut?
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1.7k
Oct ’22
Why do some call blocking apps have multiple call extensions instead of just one?
Truecaller uses 4 call extension, Hiya has 3 and RoboKiller has 2. But why? There's no limitation or lack of functionality from just using one, why have multiple with the additional complexity of managing multiple ones within the app. I can't think of any possible reason for this, so I'm mystified why so many call blocking/identification apps have lots of them. Are they storing data in a database which doesn't support lazy loading / the ability to read a set of data in chunks, so instead they create multiple databases?
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566
Oct ’22
So its not possible for an app to have more than one action extension?
I added two actions extensions to my app, however if from the iPhone's call history, Share Contact is selected, then Edit Actions, then only one of the action extensions is visible (they both have the same NSExtensionActivationRule, but the intention being they'll have different action names and perform different actions). So presumably, having more than one action extension just isn't possible. Could somebody please confirm if that is the case or not.
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496
Oct ’22
Push tokens: how to get a user/app to run after users transfers to a new phone?
If the user installs an application which uses push notifications onto iPhone A and then runs the app then the app will send the push token to the server (and from that point one the app should detect if the push token changes and send the new token to the server). However there's no way that the app can do this in the situation where the user backs up iPhone A to iCloud and then restores to iPhone B. If the user doesn't explicitly launch the application, then the application has no chance to detect that the push token will have changed, and so meanwhile the server is sending pushes using the token from phone A but the user now is using phone B. User's won't know they have to launch an app on phone B, and there's no way the app can launch itself, so the user's now have a non functioning app but they don't realise it. There must a lot of apps using push that face this situation, yet there's no solution? I was hoping iOS 16's background asset download might be a solution to this - if the extension gets called after restoring from iCloud it could detect the device change and thus push token change and post a notification to the user telling them they need to launch the app, but this extension appears to be functionally sandboxed and its not possible to post a notification from within it (unlike many other extensions).
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550
Nov ’22
Voip calls: how to register users id, and how to generate test voip calls to test app
I've found literally dozens and dozens of tutorials of how to deal with a voip push, but none of them, not one, make any mention at all of how to set things up prior to that, nor how to test the code they've just written. Sure, you can send a voip push easily enough using a push tool or push script, but that's only part of the picture, none of these tutorials mention anything about actually making a voip test call to accompany the test voip push. Are there any tools, or web portals etc. that can be used to generate a voip call to a handset to set the voip call side of things in addition to the voip push handling? Also, none of the tutorials mention what's needed to be done by the app in addition to implemented code to handle the voip push, specifically I mean how does the server sending the push know which user is associated with the push token. Surely there has to be a step where the app performs some sort of sip registration with a server before it deals with a voip push. None of these so called tutorials show any of that, all these tutorials just show a small portion of a whole, does anybody know of one that actually shows the whole?
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678
Nov ’22
CallKit - when is reportNewIncommingCall() used versus reportNewIncommingVoIPPushPayload()?
I'm confused by when CXProvider:reportNewIncommingVoIPPushPayload() is intended to be used versus CXProvider:reportNewIncommingCall(). All the iOS tutorials about VoIP push talk about sending a voip push to the app and the app calling CXProvider:reportNewIncommingCall() and then proceeding to deal with the VoIP call. However in this Apple documentation https://developer.apple.com/documentation/callkit/sending_end-to-end_encrypted_voip_calls It talks about sending a regular push, not a voip push, which is intercepted by a notification service extension, and the extension calling CXProvider:reportNewIncommingVoiPPushPayload(). I'm confused - when there's an incoming VoIP call should a voip push be sent to the app and reportNewIncommingCall() called or a regular push sent to the notification extension and reportNewIncommingVoiPPushPayload() called?
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1.1k
Nov ’22
Can VoIP call's be "Blocked" on the handset?
CallKit provides the ability to block regular calls via the call extension. And CallKit also provides the ability to integrate VoIP calls with the phone's call screen/user experience etc. However the blocking aspect of CallKit seems to have no bearing on the VoIP aspect. When the app receives a Voip Push it has to call CXProvider.reportNewIncomingCall() and that displays a call screen. If the parameters passed to reportNewIncommingCall() a handle of the .phone with a phone number registered for blocking with CallKit, the call screen still displays. Its not use to call CXProvider.invalidate() immediately because the call screen will still display, though its only displayed for a brief time its still very very obvious and noticeable. Therefore there appears to be no way of "blocking" the call, blocking is in quotes because from the user's perspective you would not expect to see the call screen, but is there is no way of stopping it from appearing, even if that appearance is only brief?
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642
Nov ’22
How can a notification service extension receive a VoIP push? (as opposed to receiving a non-VoIP push)
0 If a voip push (i.e. a push with a topic of com.company.app.voip as the push topic) is sent to a handset then it is delivered directly to the app via: pushRegistry:(PKPushRegistry *)registry didReceiveIncomingPushWithPayload:(PKPushPayload *)payload forType:(PKPushType)type withCompletionHandler: If the app has a notification service extension, and the push payload contains mutable-content, and if the app is terminated, then the app gets launched in the background and the push still is delivered directly to the app, it does not get delivered to the extension. If the push topic is changed to be just com.company.app (and provided the payload contains the mutable-content flag) then in that case it gets delivered to the extension. However now it's no longer a voip push, it's just a regular push, because the topic no longer contains the .voip suffix. So how can things be configured whereby a voip push gets delivered to a notification service extension? Because that's what the Apple documentation says: Call this method when your notification service extension receives an encrypted VoIP call request. From: https://developer.apple.com/documentation/callkit/cxprovider/3727263-reportnewincomingvoippushpayload How is that possible, how can a notification service extension receive an encrypted VoIP call request like it mentions in the documentation?
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1.5k
Nov ’22