Recent questions tagged Swift

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swift - How to show HTML or Markdown in a SwiftUI Text?

How can I set a SwiftUI Text to display rendered HTML or Markdown? Something like this: Text(HtmlRenderedString( ... need a different View? See Question&Answers more detail:os...

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

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609 views

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swift - Cannot invoke initializer for type 'Range<String.Index>' with an argument list of type '(Range<String.Index>)'

After updating to Xcode 10 beta, which apparently comes with Swift 4.1.50, I'm seeing the following error which ... how to fix the initializer? See Question&Answers more detail:os...

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

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880 views

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swift - Changing text color of datepicker

Is it any way to change text color of datepicker in iOS8? I've that it isn't possible in iOS7 and ... found modified picker in Yahoo Weather! See Question&Answers more detail:os...

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

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496 views

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swift - How can I declare that a text field can only contain an integer?

In swift, I am trying to make a text field that will allow a button to be enabled, but only when the text field ... integer. How can I do 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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610 views

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swift - Unable to run app in Simulator : An error was encountered while running (Domain = LaunchServicesError, Code = 0)

I am unable to run my app in simulator after having trouble with the provisioning profile. I'm doing swift ... Fixed the error in provisioning. See Question&Answers more detail:os...

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

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679 views

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swift - UITextView with hyperlink text

With a non-editable UITextView, I would like to embed text like this in iOS9+: Just click here to register I ... Swift 3 if that's relevant. See Question&Answers more detail:os...

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

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845 views

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swift - IOS 8 Tab Bar Item Background Colour

I've been trying to find the solution to this for the last week, and I have had no luck after trying ... it to do. Different Background Color See Question&Answers more detail:os...

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

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1.3k views

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swift - How to remove the left and right Padding of a List in SwiftUI?

How to remove the left and right Padding of a List in SwiftUI? Every List i create has borders to the leading ... should I add to remove 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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783 views

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swift - How to detect Apps first launch in iOS?

I would like to display a welcome screen when a user opens my app for the first time. What method is there to ... launch of an app in Swift? See Question&Answers more detail:os...

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

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974 views

1 answer

swift - How change background color if using NavigationView in SwiftUI?

I want to change background color for full screen. I am using NavigationView, and I want to set Gray color for ... work in any place. preview 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

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swift - Command failed due to signal: Abort trap: 6

Since Xcode 7 and Swift 2.0, I get the error above, like in the screenshot shown here: I have no ... problem? Project settings: Target settings: 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

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swift - Deinit never called

I'm creating a ViewController object an pushing it to a navigation controller. When the object ... ?.popViewControllerAnimated(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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680 views

1 answer

swift - NSDate of yesterday

How do I create an NSDate object with a custom date other than the current date? For example I would like to ... yesterday or of 2 days ago. See Question&Answers more detail:os...

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

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748 views

1 answer

swift - Iterate over two arrays simultaneously

I am new to Swift. I have been doing Java programming. I have a scenario to code for in Swift. The ... syntaxes for looping over based on index See Question&Answers more detail:os...

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

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640 views

1 answer

swift - What is difference between optional and decodeIfPresent when using Decodable for JSON Parsing?

I am using Codable protocol from Swift 4 first time, I am not able to understand use of decodeIfPresent from ... is not present in response. See Question&Answers more detail:os...

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

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594 views

1 answer

swift - SwiftUI View and @FetchRequest predicate with variable that can change

I have a view showing messages in a team that are filtered using @Fetchrequest with a fixed predicate 'Developers'. ... this out on my own. See Question&Answers more detail:os...

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

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501 views

1 answer

swift - What is Communications error: OS_xpc_error in Xcode 6?

I got this error this morning and can't find a reasonable explanation: Communications error: <OS_xpc_error: <error: ... up. What is 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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629 views

1 answer

swift - How to add Strings on X Axis in iOS-charts?

With the new release i had some troubles to create some graphs the previous code was: func setChart(dataPoints: [ ... can help me, 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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940 views

1 answer

swift - Saving CGImageRef to a png file?

in my Cocoa application, I load a .jpg file from disk, manipulate it. Now it needs to be written to disk as ... do that? Thanks for your help! See Question&Answers more detail:os...

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

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910 views

1 answer

swift - Load local web files & resources in WKWebView

Unlike with UIWebView and previous versions of WKWebView (iOS 10 & macOS 10.12), the default load operation ... ), without any workarounds? See Question&Answers more detail:os...

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

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661 views

1 answer

swift - JavaScript synchronous native communication to WKWebView

Is synchronous communication between JavaScript and Swift/Obj-C native code possible using the WKWebView? These are the ... something = 42") } See Question&Answers more detail:os...

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

0 votes

989 views

1 answer

swift - Failed to build module 'XXX' from its module interface while creating xcframework

Currently I am working in a framework project to distribute to a client we have. The Framework has SPM dependencies ... found any information in the matter. Can somebody help me?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

685 views

1 answer

swift - Firebase Google SignIn failed - "Audience Mismatch"

I have implemented Google sign in via Firebase and followed proper documentation: https://firebase.google.com/docs/auth/ ... confirm info.plist does not match with target project....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

1 answer

swift - Set QuickLook window size when previewing with QLPreviewingController.preparePreviewOfFile

I am writing a QuickLook plugin for macOS and everything works, except that I can't set programmatically the window size of ... on a file handled by my plugin. What am I missing?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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