Hello all!
The official Qt reference saying - XCode 11 iOS 13 SDK. I there any way to deploy on iOS 14 device? I am using Qt 5.15. If not - when in Qt going to be iOS 14 support? Or all of it will be in Qt 6.0?
Just as with macOS 10.14, the 10.15 SDK does not support building 32-bit code, and furthermore 32-bit programs cannot run on Catalina. Any ports of software that lacks 64-bit support or needs to be universal will thus fail to build or otherwise encounter problems on Catalina. Most of these will not be able to be fixed short of adding 64-bit. Step Two – Install XCode on Windows. Once the macOS Catalina is installed, open it up and switch it on from VMware or VirtualBox. Next, open the App Store and search for XCode. XCode on App Store. On the results, click the XCode then click Get on this window. It will ask for your Apple ID, sign in and it will start. What is macOS Catalina? Mac OS is Apple's operating system for their Apple iMac range of computers. It uses a combination of technologies including Mach, NetBSD, FreeBSD, NeXT, and Cocoa. The current Apple iMac range now use Intel hardware and processors. MacOS Mojave the latest version of Mac OS using version number 10.15. So the solution is to compile Xdebug manually, manually specifying the actual location of the header files, which are still provided by Xcode, just at a different location. First, make sure Xcode is installed, including the command line tools. The following command will display the location of the default SDK.
Updated.
I've just tried to update XCode 11.5 on Mojave and got this message
It's mean you can't be using Mojave anymore. You might be using previously installed, but not if you installing or reseting your apple device. Apple insisting on updates, even you trying to ignore updates:
If you will update and install XCode from AppStore there will be installed XCode 12 that is not supported by QT yet. You will get an error of something like 'I don't see iOS SDK'. Install XCode manualy by downloading it through Apple Developer login. In few going to post system configuration that is OK for Qt developing for mobile.
Working on a large iOS codebase often involves a lot of waiting: Waiting for Xcode to index your files, waiting for Swift and Objective-C code to compile, waiting for the Simulator to boot and your app to launch…
And after all of that, you spend even more time getting your app into a particular state and onto a particular screen, just to see whether the Auto Layout constraint you just added fixes that regression you found. It didn’t, of course, so you jump back into Xcode, tweak the Content Hugging Priority, hit ⌘R, and start the whole process again.
We might relate our sorry predicament to that one xkcd comic, but for those of us who don’t so much relish in the stop-and-go nature of app development, there’s an old Yiddish joke about Shlemiel the painter (provided below with a few -specific modifications; for the uninitiated, please refer to Joel Spolsky’s original telling):
Shlemiel gets a job as a software developer, implementing a new iOS app. On the first sprint he opens Xcode and implements 10 new screens of the app. “That’s pretty good!” says his manager, “you’re a fast worker!” and pays him a Bitcoin.
The next sprint Shlemiel only gets 5 screens done. “Well, that’s not nearly as good as yesterday, but you’re still a fast worker. 5 screens is respectable,” and pays him a Bitcoin.
The next sprint Shlemiel implements 1 screen. “Only 1!” shouts his manager. “That’s unacceptable! On the first day you did ten times that much work! What’s going on?”
“I can’t help it,” says Shlemiel. “Each sprint I get further and further away from application(_:didFinishLaunchingWithOptions:)!”
Over the years, there have been some developments that’ve helped things slightly, including @IBInspectable and @IBDesignable and Xcode Playgrounds. But with Xcode 11, our wait is finally over — and it’s all thanks to SwiftUI.
The functionality described in this article requires the following:
- Xcode 11
- macOS Catalina
- iOS 13 set as the Deployment Target for your app’s Debug configuration
(In Xcode, navigate your project’s Build Settings; under the Deployment heading, expand the iOS Deployment Target setting and set Debug to iOS 13.0 or later)
Without these three things, your code either won’t compile or won’t render live previews.
Although many of us have taken a “wait and see” approach to SwiftUI, we can start using its capabilities today to radically speed up and improve our development process — without changing a line of code in our UIKit apps.
Consider a subclass of UIButton that draws a border around itself:
Normally, if we wanted to test how our UI element performs, we’d have to add it to a view in our app, build and run, and navigate to that screen. But with Xcode 11, we can now see a preview side-by-side with the code editor by adding the following under the original declaration of BorderedButton:
Using a new feature called dynamic replacement, Xcode can update this preview without recompiling — within moments of your making a code change. This lets you rapidly prototype changes like never before.
Want to see how your button handles long titles? Bang away on your keyboard within the call to setTitle(_:for:) in your preview, and test out potential fixes in your underlying implementation without so much as leaving your current file!
UIViewPreview is a custom, generic structure that we created to conveniently host previews of UIView subclasses. Feel free to download the source and add it to your project directly.
Incorporating a proper dependency would be complicated by the conditional import and iOS 13 Deployment Target settings required to make Xcode Previews work for non-SwiftUI apps, so in this particular instance, we think it’s best to embed these files directly.
Expand for the full implementation of UIViewPreview:
Previewing Multiple States
Let’s say our app had a FavoriteButton —a distant cousin (perhaps by composition) to BorderedButton.In its default state,it shows has the title “Favorite”and displays a ♡ icon.When its isFavorited property is set to true,the title is set to “Unfavorite”and displays a ♡̸ icon.
We can preview both at once by wrapping two UIViewPreview instances within a single SwiftUI Group:
The chained previewLayout and padding methods apply to each member of the Group. You can use these and other View methods to change the appearance of your previews.
Previewing Dark Mode
With Dark Mode in iOS 13, it’s always a good idea to double-check that your custom views are configured with dynamic colors or accommodate both light and dark appearance in some other way.
An easy way to do this would be to use a ForEach elementto render a preview for each case in the ColorScheme enumeration:
When rendering previews with ForEach, use the previewDisplayName method to help distinguish amongall of the enumerated values.
Previewing Dynamic Type Size Categories
We can use the same approach to preview our views in various Dynamic Type Sizes:
Previewing Different Locales
Mac Catalina Xcode Won't Update
Xcode Previews are especially time-saving when it comes to localizing an app into multiple languages. Compared to the hassle of configuring Simulator back and forth between different languages and regions, this new approach makes a world of difference.
Let’s say that, in addition to English, your app supported various right-to-left languages. You could verify that your RTL logic worked as expected like so:
We don’t know of an easy way to use NSLocalizedString with an explicit locale. You could go to the trouble of retrieving localized strings from a strings file in your bundle, but in most cases, you’ll be just fine hard-coding text in your previews.
Xcode Mac Catalina
Previewing View Controllers on Different Devices
SwiftUI previews aren’t limited to views, you can also use them with view controllers. By creating a custom UIViewControllerPreview typeand taking advantage of somenew UIStoryboard class methods in iOS 13,we can easily preview our view controlleron various devices —one on top of another:
There’s currently no way to get SwiftUI device previews in landscape orientation. Although you can approximate this with a fixed size preview layout, be aware that it won’t respect Safe Area on iPhone or render split views correctly on iPad.
Although most of us are still some years away from shipping SwiftUI in our apps (whether by choice or necessity), we can all immediately benefit from the order-of-magnitude improvement it enables with Xcode 11 on macOS Catalina.
By eliminating so much time spent waiting for things to happen, we not only get (literally) hours more time each week, but we unlock the possibility of maintaining an unbroken flow state during that time. Not only that, but the convenience of integrated tests fundamentally changes the calculus for testing: instead of being a rare “nice to have,” they’re the new default. Plus: these inline previews serve as living documentation that can help teams both large and small finally get a handle on their design system.
Mac Os Catalina Xcode
It’s hard to overstate how much of a game-changer Xcode Previews are for iOS development, and we couldn’t be happier to incorporate them into our workflow.