Recent questions tagged Swift

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swift - UnsafeRawPointer assumingMemoryBound vs. bindMemory

Can anyone explain what is difference between UnsafeRawPointer.assumimgMemoryBound(to:) and UnsafeRawPointer.bindMemory(to: ... :) completes? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Getting country name from country code

I have found the answer for this for objective-c but Im having a hard time doing this in swift. I have used ... "US" to "United States"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - 'NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release

I'm receiving a message in the log saying 'bundleNamePlaceholder'[8424:100146] [general] 'NSKeyedUnarchiveFromData' ... what might cause it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Delay using DispatchTime.now() + float?

What exactly is going on with DispatchTime.now() How come I can't assign the time to wait as a variable? And ... whenWhen){ print("Hello") } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - UITextView change text color of specific text

I want to change the text color of a specific text within a UITextView which matches an index of an array. ... = string return string } Outcome See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - iOS 9, 10 CoreData: Failed to load optimized model at path

I have created new version of CoreData model and migrated existing one to it. Application works without any ... duplicate of this question. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - SpriteKit and SceneKit – How to completely pause a game?

I succeeded to pause a scene game with this code: override func touchesBegan(touches: NSSet!, withEvent event: UIEvent!) ... How can i fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - SKTextureAtlas no longer sharing textures in iOS 10

It seems that when pulling textures from a texture atlas, I am now generating new textures instead of using the ... help, keep this in mind. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Monitoring app switching on OS X

I want to know, from within a Swift application, when the user changes from one application to another, ... through an event monitor perhaps? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift 2.0 keychain type errors for SecItemCopyMatching

We had this snippet of code with the previous version of Swift var retrievedData: NSData? var extractedData: ... error Anyone an idea? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Check if class conforms to protocol

I am trying to make a simple Dependency Injection system for our app in swift, for 2 day now. I'm flexible ... . In swift it feels impossible! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Trying to stream audio from microphone to another phone via multipeer connectivity

I am trying to stream audio from the microphone to another iPhone via Apples Multipeer Connectivity framework. To ... would be much appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - iOS CryptoKit in Java

I am looking for settings/parameters of CryptoKit which will allow me to share data between iOS App and a Java ... get a TAG mismatch error. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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902 views

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swift - Can't use storyboard custom instantiated window controller

I am getting what feels like a bug when trying to custom instantiate a window controller from a storyboard. I am ... not make any sense to me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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swift - "Value of type 'AuthDataResult' has no member 'uid'" error

Can someone help me about this issue? The first error was "value of type 'authdataresult' has no member 'uid' ... . They are 2 different errors. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - How to Split String Using Regex Expressions

I have a string "323 ECO Economics Course 451 ENG English Course 789 Mathematical Topography" I want to split ... portion a regular expression? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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983 views

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swift - Accessing MKMapView elements as UIViewRepresentable in the main (ContentView) SwiftUI view

I am using SwiftUI to display a map and if user tapped on an annotation, it pops up a detail view in ... and define tapaction in another view. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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swift - iOS 14 has Changed (or broken?) SwiftUI GeometryReader

As of today's release of iOS 14.0 my iOS code, which depends heavily on GeometryReader for layout, is no longer working ... ) } Spacer() } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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821 views

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swift - Benefits of using class func vs func vs no class declaration

Ok so I have a a bunch of helper functions in my project that I originally had in a class called Animate. ... advance for any insight on this! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Possible to generate a list of connected bluetooth devices for iOS?

I'm trying to determine what devices are connected via bluetooth in iOS but can't seem to figure it out. ... all possible services? Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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swift - UICollectionView CompositionalLayout not calling UIScrollDelegate

Here is my problem: 1. ScrollViewDelegate does not get called once UICollectionView implements compositionalLayout ... its ScrollViewDelegates? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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852 views

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swift - OSX Application: how to make window maximized?

I am working on a mac application, and I like to make initial window be in maximized state, like when you are ... want it to be full screen. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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swift - How to use Codable protocol in objective c data model class?

I am working on mix and match iOS source code. I have implemented codable for swift data model class which ... swift and objective c classes. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - How to limit the movement of two anchored lines so they swing continually like a pendulum

I have created two lines anchored to a sprite, which are 30? apart. I want both lines to swing left and right ... of feel I want for movement. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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swift - Simultaneous gesture recognition for specific gestures

I'm trying to enable simultaneous gesture recognition but only for the UIPinchGestureRecognizer and UIRotationGestureRecognizer ... true } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

swift - How to retrieve Alamofire response header for a request

how can I retrieve response headers for a request? Below is a request I make. Alamofire.request(.GET, requestUrl, ... ... } Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

swift - How to prevent strong reference cycles when using Apple's new Combine framework (.assign is causing problems)

I don't quite understand how to properly store subscribers inside a class so that they persist but don't ... .assign for instance? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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976 views

1 answer

swift - How to copy a struct and modify one of its properties at the same time?

If I want to represent my view controller's state as a single struct and then implement an undo mechanism, how ... a value for every property? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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