Recent questions tagged swift

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swift - Build error when trying to override an initializer in Xcode 6.3 Beta 3

The following code shows build error in Xcode 6.3 Beta 3. The code works in Xcode 6.2 and Xcode 6.3 Beta ... How can I fix those build errors? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Generating resource_bundle_accessor, Type 'Bundle' has no member 'module'

Some times Xcode can not determine the module parameter in the Bundle. Type 'Bundle' has no member 'module' My ... not showing the file at all. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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757 views

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swift - Why is manually setup root view controller showing black screen?

I have manually setup a root view controller for iOS 13 using Xcode 11, Beta 5. Deleted references to ... = viewCon window?.makeKeyAndVisible() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - How to get static image from google maps in iOS

I use google maps api for iOS. I want to get static image of special city and paste it in UIImageView. How can I make it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

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swift - Use queue and semaphore for concurrency and property wrapper?

I'm trying to create a thread-safe property wrapper. I could only think of GCD queues and semaphores as being ... and if they even work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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swift - Expected to decode Array<Any> but found a dictionary instead

I was fetching data from an API returning an array but needed to replace it by an API that has "sub levels": ... or what this form of API is See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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516 views

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swift - in app purchase in SKScene

Is it possible to implement an in-app purchase within the SKScene? If so, how? I'm trying to use ... applications rather than in SpriteKit. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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898 views

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swift - How to display UIView over keyboard in iOS

I want to create a simple view over keyboard, when users tap "Attach" button in inputAccessoryView. Something ... create my custom keyboard? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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676 views

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swift - String convert to Int and replace comma to Plus sign

Using Swift, I'm trying to take a list of numbers input in a text view in an app and create a sum of this ... +99+97+96... Please Help! Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - How do I left align the title of a navigation bar in Xcode?

I've been trying the following in order to get the title of a navigation bar left aligned: In the ... .navigationItem.titleView = lbNavTitle } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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swift - Convert AVAudioPCMBuffer to NSData and back

How to convert AVAudioPCMBuffer to NSData? If it should be done as let data = NSData(bytes: buffer. ... convert NSData to AVAudioPCMBuffer? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - One-line closure without return type

In Swift, if a closure holds only a single statement, it automatically returns the value returned from that single ... I have to live with? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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612 views

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swift - intrinsicContentSize() - Method does not override any method from its superclass

I updated to Xcode 8 beta 5, and now get the following error on a class that inherits from UIView: Method does ... .. } Is there a workaround? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

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swift - How do I do authorization and login with WeChat using the iOS SDK?

How do I do authorization and login with WeChat using the iOS SDK? There doesn't seem to be much information ... the documents are in Chinese. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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566 views

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swift - Determine if Any.Type is Optional

I'm trying to determine if a given type t (Any.Type) is an optional type, I'm using this test t is ... is there any way to achieve this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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797 views

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swift - iOS 11 UITableView delete rows animation bug

video of the tableview animation bug I have a table view which expands/collapse its cells. As of iOS ... .fade) endUpdates() } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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982 views

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swift - Read SMS message in iOS

I'm an iOS developer and i have tried to build a mobile application with automatic activation functionality, i ... SMS message in iOS platform? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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932 views

1 answer

swift - extension of Dictionary where <String, AnyObject>

I am trying to create a dictionary extension where Dictionary is of the type <String, AnyObject>. Was looking ... expected type of 'AnyObject' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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14.7k views

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swift - How do I set collection view's cell size via the auto layout

Hi I'm trying to resize the cell via the auto layout. I want display the cell by the 3 by 3. First Cell's ... I set by the code? Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

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swift - AppDelegate and SceneDelegate when supporting iOS 12 and 13

I need to support iOS 12 and iOS 13. Should I be duplicating code between AppDelegate and SceneDelegate? For example ... = window return true } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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swift - SwiftUI: Pop to root view when selected tab is tapped again

Starting point is a NavigationView within a TabView. I'm struggling with finding a SwiftUI solution to pop ... window.makeKeyAndVisible() } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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728 views

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swift - Check if date falls between 2 dates

I have this code where convert a String into a date object let date2 = KeysData[indexPath.row]["starttime"] ... the array startdate and endate See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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876 views

1 answer

swift ios add infinite scroll pagination to uitableview

I wonder if tableview has any built-in function to add infinite scroll/pagination. Right now my VC looks like ... more data into the tableview See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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756 views

1 answer

swift - Programmatically navigate to new view in SwiftUI

Descriptive example: login screen, user taps "Login" button, request is performed, UI shows waiting indicator ... transition in SwiftUI? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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swift - Twitter Call back URL

I am working with twitter SDK to integrate with in ios app.When i follow all the step and create the customer ... settings" How to resolve this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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762 views

1 answer

swift - Lazy initialisation and retain cycle

While using lazy initialisers, is there a chance of having retain cycles? In a blog post and many other places [ ... but actually it is not. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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683 views

1 answer

swift - How to create Dictionary that can hold anything in Key? or all the possible type it capable to hold

I want to create a Dictionary that does not limit the key type (like NSDictionary) So I tried var dict = ... is not really what I want. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

swift - Can the height of the UISearchbar TextField be modified?

I'm testing out my UI and I find the search bar a little bit too narrow for my liking. I also want to ... , just missing a few critical bits. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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