xcode11

问题 The Xcode preview does not work if i add a EnviromentObject property wrapper. Everytime i add one the Canvas doesn't build and i get this error: Cannot preview in this file - [App Name].app may have crashed If i replace the EnviromentObject property wrapper with ObservedObject and initialize it everything works fine. Here's my code: class NetworkManager: ObservableObject { } struct ContentView : View { @EnvironmentObject var networkManager: NetworkManager var body: some View { Text("Canvas

问题 I am trying using var body: some View { Text("This is large text. Is there a way that I can unwrap the large text as discussed").lineLimit(2) } FYI: I knew var body: some View { Text("This is large text. Is there a way that I can unwrap the large text as discussed").lineLimit(nil) } It will wrap the text to say n number of lines. 回答1: Call .lineLimit(3) on the Text element. (Technically, it can be called on any View , in which case it will limit the lines of all Text elements in that view.)

问题 When I am trying to set the width of a UIView to be proportional to the superview from storyboard the option is not showing up in Xcode 11. But in Xcode 10 it's showing the "Equal Widths" and "Equal Heights" option. 回答1: Works fine for me in Xcode 11.2: 来源： https://stackoverflow.com/questions/58683474/not-able-to-set-proportional-height-for-a-uiview-in-storyboard-in-xcode-11

问题 When I am trying to set the width of a UIView to be proportional to the superview from storyboard the option is not showing up in Xcode 11. But in Xcode 10 it's showing the "Equal Widths" and "Equal Heights" option. 回答1: Works fine for me in Xcode 11.2: 来源： https://stackoverflow.com/questions/58683474/not-able-to-set-proportional-height-for-a-uiview-in-storyboard-in-xcode-11

问题 I used to use autolayout add new constraints to make simple constraints to superview / relative view like this (for loooong time): However, recently after updated to the latest xcode (11.3.3 or just 11.3/11C29), I have this weird issue: when I set the constant = 0, they always generate the constraints in an unwanted way like this: And it seems default value is somehow 20 and making my view look so wrong (0 compared to 20?) If I fix that by edit the constraint like this: Then it'll correct

问题 I used to use autolayout add new constraints to make simple constraints to superview / relative view like this (for loooong time): However, recently after updated to the latest xcode (11.3.3 or just 11.3/11C29), I have this weird issue: when I set the constant = 0, they always generate the constraints in an unwanted way like this: And it seems default value is somehow 20 and making my view look so wrong (0 compared to 20?) If I fix that by edit the constraint like this: Then it'll correct

问题 I used to use autolayout add new constraints to make simple constraints to superview / relative view like this (for loooong time): However, recently after updated to the latest xcode (11.3.3 or just 11.3/11C29), I have this weird issue: when I set the constant = 0, they always generate the constraints in an unwanted way like this: And it seems default value is somehow 20 and making my view look so wrong (0 compared to 20?) If I fix that by edit the constraint like this: Then it'll correct

问题 I've recently converted a bunch of my frameworks to use Swift Package Manager. My Package.swift looks something like this: // swift-tools-version:5.1 import PackageDescription let package = Package( name: "MDFToolbox", platforms: [ .macOS(.v10_13), .iOS(.v12), .tvOS(.v12), .watchOS(.v3) ], products: [ .library(name: "MDFToolbox", targets: ["MDFToolbox"]) ], dependencies: [ .package(url: "git@github.com:Swinject/Swinject.git", from: "2.7.0"), ], targets: [ .target(name: "MDFToolbox",

问题 Seems like we can use ^⇧⌘↩︎ to focus/unfocus current editor, though even when the current editor gets unfocused, I'm not sure how to control what gets opened in the assistant editor. I would like to know the keyboard shortcuts for: Open a specified file in assistant editor. After assistant editor is opened, change which file gets displayed in assistant editor. Thank you! 回答1: So if you want to open a file in specific editor from the project navigator, you have to hold ⌥ option + ⇧ shift and

问题 How can we connect outlet with the table view custom cell class in storyboard? As in earlier Xcodes, there is a button to open two windows in storyboard screen but in new Xcode that button is missing. Please guide how to achieve that functionality. 回答1: Click here (1), and then select the file in the right panel that appears (2), step 1 and 2 in the image, then you can connect outlet as always ;) 回答2: Here you have how to open the tab to drag the outlets from the view to the viewController in