Recent questions tagged Swift

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swift - NSDateComponents weekOfYear returns wrong date

so i am making a basic week picker, where you can pick a week number and year, and get the corresponding date ... you in advance for your help. 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 - Animating a navigation bar color

I am trying to animate a change of color of a navigation bar when popping back to a previous controller ... would be greatly appreciated. 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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swift - How to stream remote audio in iOS 13? (SwiftUI)

This code using AVPlayer works only on Playground import AVFoundation var player = AVPlayer() let playerItem = ... Thank you so much! 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 - Multi-face detection in RealityKit

I have added content to the face anchor in Reality Composer, later on, after loading the Experience that i ... basic and simple. 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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swift - Present ViewController on top of everything regardless of the view hierarchy in IOS 13

In iOS 13,there is a new behaviour for modal view controller when being presented. Now it's not fullscreen by ... : true, completion: nil) } 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 - GCD with static functions of a struct

how'd you apply thread safe functionality to static functions of a struct class SingleSome { struct Static ... inherited objects of SingleSome 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 - Get iOS contact image with ABPersonCopyImageData

I'm trying to read the contact image of my iOS addressbook but I'm having some troubles with it. I have a ... contact but i add one to John. 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 use trailing closure in if condition?

Here is the code: class Person { } func lastNameForPerson(person: Person, caseFolding: ((String)->(String))? = ... be separated by a new line 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 - PhysicsBody: Could not create physics body

I have an entire working game that has been up on the App Store, but since iOS 13 it simply does not ... to this where textures are needed? 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 - FCM Push notification not working in iOS 11

I need to handle push notification and that's done with a lower version of ios but in ios 11 never receive ... has a solution then please share. 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 playground - Sequence of elements, but "join is unavailable: call the 'joinWithSeparator()'" error

Why do I get the error "join is unavailable: call the joinWithSeparator()" at line 16 (the last line below) when ... return " ".join(parts) } } 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 - UIImage is equal to

I need to check if a file loaded into an UIImage object file is equal to another image and execute some ... always enters the if branch. 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 clang: error: linker command failed with exit code 1 (use -v to see invocation) while google signing

I'm getting this error while linking Google sign in without using cocoa pods. I have referred many solutions here ... use -v to see invocation) 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 - Rotating a CGPoint around another CGPoint

Okay so I want to rotate CGPoint(A) 50 degrees around CGPoint(B) is there a good way to do that? CGPoint(A) = ... ) Here's what I want to do: 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 - ios13 UIPopoverViewController showing UITableViewController - Safe Area problems / Missing parts of table

In the same theme as this post: iOS 13 - UIPopoverPresentationController sourceview content visible in the arrow I ... here is the results: 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 - Why is generic specialization lost inside a generic function

When I create a computed property that depends on a generic type, the specific implementation is "lost" when the ... why it behave like that. 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 do you implement protocol methods that return covariant Selfs?

error: protocol 'Protocol' requirement 'instance' cannot be satisfied by a non-final class ('Class') because it uses ... ??).instanceFunc() } } 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 - What is type of 123_456_789?

I see in Swift examples values like 123_456_789, numbers with underscores. What type do these values have by ... without defining a type? 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 - Can't form Range with end < start Check range before doing for loop?

I'm encountering a change in the swift code which i do not quite understand. var arr = [] for var i = 1; ... ) } } Is there a smarter solution? 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 - Password field's keyboard switches from azerty to qwerty (sometimes) only on iOS 12

I code an iOS App in Swift 4, I'm french so I work with mobile phone in french language/french region. With an ... fix to this issue ? 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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1 answer

swift - iphoneX not call prefersStatusBarHidden

info.plist <key>UIViewControllerBasedStatusBarAppearance</key> <true/> UIViewController override var prefersStatusBarHidden: ... not hidden 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 - generatesDecimalNumbers for NumberFormatter does not work

My function is converting a string to Decimal func getDecimalFromString(_ strValue: String) -> NSDecimalNumber { let ... where I made mistake? 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 - session.dataTaskWithURL completionHandler never called

I have the following code : let urlPath:String = apiURL + apiVersion + url + "?api_key=" + apiKey let url = ... any error it's hard to debug. 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 Unit Testing: Class is implemented in both

I'm building an iOS 9 App with Swift 2 and Xcode 7. My app runs fine when deploying it to my phone but ... . Which one is undefined. 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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swift - iOS how to set Alarm and schedule work/notifications

Hi I am new to iOS basically I am android developer. But Right now I am working on iOS app,It is simply an iOS ... 4.0. 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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976 views

1 answer

swift - what would be a proper storyboard example of combining nav bars and tab bars in one app?

Hi I'm new to ios app dev. I've only done tutorials so far that have covered apps with either nav bars or ... would work in a more complex app. See Question&Answers more detail:os...

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

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1.2k views

1 answer

swift - How to automatically delete push notifications from iOS notification centre at a specific time?

I am developing an iOS app using Swift which has push notification feature. The app sends Birthday reminders ... having any user interaction? See Question&Answers more detail:os...

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

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1.4k views

1 answer

swift - Play local audio file with AVAudioPlayer

I'm testing my app in simulator. I'm downloading file and getting it's local way like this one: file:/// ... } How should I make it playing? See Question&Answers more detail:os...

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

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