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Table container, when scrolling content, the content will appear underneath and to the top of the column headings.
When the Table container is scrolled up the data rows just keep moving up and become unreadable with the column headings superimposed over the top. Prior to scrolling upwards, the display will look like this. However, if you start to scroll up This behaviour does not seem to be the expected behaviour without any modifiers etc. The following is the code I have been using. import SwiftUI struct Customer: Identifiable { let id = UUID() let name: String let email: String let creationDate: Date } struct SwiftyPlaceTable: View { @State var customers = [Customer(name: "John Smith", email: "john.smith@example.com", creationDate: Date() + 100), Customer(name: "Jane Doe", email: "jane.doe@example.com", creationDate: Date() - 3000), Customer(name: "Bob Johnson", email: "bob.johnson@example.com", creationDate: Date())] var body: some View { Table(customers) { TableColumn("name", value: \.name) TableColumn("email", value: \.email) TableColumn("joined at") { customer in Text(customer.creationDate, style: .date) } } } } #Preview { SwiftyPlaceTable() }
Topic: UI Frameworks SubTopic: SwiftUI
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144
Oct ’25
GIT incorrectly monitoring changes to system files
I have a small playground approx 150 lines no SwiftUI It also has a 70 line text file Xcode now thinks I have over 4000 files that have changed and they are Xcode or system files If I am looking at this list then the Mac Mini will freeze with a frozen mouse, just a stuck mouse pointer. After a minute or so the Mac will reboot itself. Any suggestions as to how to fix this would be appreciated. I have already reinstalled Xcode and the tools and its still the same.
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92
Jun ’25
Playground with a Logger - Error: Couldn't look up symbols: __dso_handle
Xcode 16.4, MacOS Sequoia 15.5 If I try to use a logger in an Xcode Playground e.g. import os import UIKit var logger = Logger(subsystem: "Loggertest", category: "") logger.info("Hello, world!") I get the following error error: Couldn't look up symbols: ___dso_handle ___dso_handle Hint: The expression tried to call a function that is not present in the target, perhaps because it was optimized out by the compiler. Its the logger.info ... that is causing the error. I have raised FB18214090 but there are no other reports. I would be grateful if some of you could verify if the Playground runs or errors on your system. A workaround, still using Logger, would be a great help. Thanks, Chris
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50
Jun ’25
Xcode JSONDecoder playground fails with 'The LLDB RPC server has crashed.
If I create a playground project that uses a JSONDecoder I get the following error. The LLDB RPC Server has crashed. The crash log is located at ~/Library/Logs/DiagnosticReports and has a prefix 'lldb-rpc-server'. Please file a bug and attach the most recent crash log. I have raised feedback for this, FB17702087, but I hope that there may be a workaround. The code I am using to try and get this to work is from The Apple Developer Documentation - JSON Decoder var greeting = "JSON Test 3" struct GroceryProduct: Codable { var name: String var points: Int var description: String? } let json = """ { "name": "Durian", "points": 600, "description": "A fruit with a distinctive scent." } """.data(using: .utf8)! let decoder = JSONDecoder() let product = try decoder.decode(GroceryProduct.self, from: json) print(product.name) // Prints "Durian" A screenshot of the playground showing the error The crash log (the file type has been changed to txt as ips file types cannot be selected for upload. lldb-rpc-server-2025-05-28-140832.txt
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94
May ’25
XCode 15 Beta 2 Preview Pane errors
Failed to launch app"..." in reasonable time. Creating a new SwiftUI app, trying to show the preview for ContentView.swift before selected another file in the project before selecting ContentView.swift Finally , trying to show the view preview creates a 'Failed to launch app "..." in reasonable time' along with the attached error diagnostic. Also, MobileCal and PowerShell can, after a few minutes, quit unexpectedly. Their diagnostics are also attached. Can't upload files a the moment
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1k
Jun ’23
Using the command line, unable to compile and run a playground with multiple sources.
I have a playground with multiple sources in a Sources directory in addition to the main Contents.swift. I have been unable to compile & run the playground from the command line. The compiler is unable to resolve any items located in the separate sources and gives multiple error such as contents.swift:8:26: error: cannot find 'JSON' in scope print("JSON rawdata\n\n\(JSON)\n")                          ^~~~ The playground executes successfully from the IDE so the constants & functions etc are declared correctly as Public I have tried swiftc Contents.swift Sources/JSON.swift Sources/Filemanager.swift etc but with no success Where am I going wrong?
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1k
Oct ’22
Dataframe columns are ordered alphabetically when you print the dataframe
`import Cocoa import TabularData let greeting = "Decimal Type Evaluation" let JSON = """ [{     "product": "Apple",     "type": "Fruit",     "weight": 7.5,     "unit_price": 0.34 }, {     "product": "Pear",     "type": "Fruit",     "weight": 0.5,     "unit_price": 0.25 }] """ struct Product: Decodable {     let product: String     let type: String     let weight: Double     let unit_price: Double } let jsonData = JSON.data(using: .utf8)! let products: [Product] = try! JSONDecoder().decode([Product].self, from: jsonData) var dataframe = try! DataFrame(jsonData: jsonData) print (dataframe)` This results in the output below showing the columns are now ordered alphabetically and not in the order they appear in the array struct definition. ┏━━━┳━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━━┓ ┃   ┃ product  ┃ type     ┃ unit_price ┃ weight   ┃ ┃   ┃ <String> ┃ <String> ┃ <Double>   ┃ <Double> ┃ ┡━━━╇━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━━┩ │ 0 │ Apple    │ Fruit    │       0.34 │      7.5 │ │ 1 │ Pear     │ Fruit    │       0.25 │      0.5 │ └───┴──────────┴──────────┴────────────┴──────────┘ 2 rows, 4 columns
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1.1k
Jul ’22
Regex expression in .split generates cannot convert type
Using Version 14.0 beta (14A5228q) on Monterey 12.4 I am trying to follow the 'Meet Swift regex' presentation dated 7 June but I have stumbled on the most basic of errors that I cannot get around. At 3:56 in the video, the following line of code is shown let transaction = "DEBIT 03/05/2022 Doug's Dugout Dogs $33.27" let fragments = transaction.split(separator: /\s{2,}|\t/) // ["DEBIT", "03/05/2022", "Doug's Dugout Dogs", "$33.27"]`` The '/' of the separator string generates the error: error: cannot convert value of type 'Regex' to expected argument type 'String.Element' (aka 'Character') I am embarrassed but also stuck on the simple issue and I cannot figure out what I am missing. TIA Chris
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2.9k
Jun ’22