In the lower-left part of the Playground there’s a right-facing blue arrow, looking like a “play” button. Do a long click on this button and you will get two options: “Automatically Run” and “Manually Run”. Choose the latter to put the Playground is manual mode and start/stop its execution yourself by clicking on this button. … Read more
Try Editor > Execute Playground from Xcode menu I don’t know what Reset Playground is, by the way.
Open the preview panel: View > Assistant Editor > Show Assistant Editor Then in your code: import PlaygroundSupport PlaygroundPage.current.liveView = view Don’t forget to give your view a visible frame. Ps: after Xcode 9, you can create a playground with default view
Look at the iOS Developer Library->Playground Help and search”Resource Files” and you will find the answer 1、Open the .playground 2、Show the Project navigator by selecting View > Navigators > Show Project Navigator. 3、Drag the images to the Resources Like follow:
It will work if you make the base implementation @objc. See Hamish’s answer for a detailed explanation about the internals. Overriding methods declared in extensions is a bit tricky to do correctly. Objective-C supports it, but it’s not absolutely safe. Swift aims to do it better. The proposal is not completed yet. Current version of … Read more
YES, it does! File: New > File… > iOS > Source > Playground import UIKit let lbl = UILabel(frame: CGRect(x: 0, y: 0, width: 300, height: 100)) lbl.text = “Hello StackOverflow!” Then, save the file. (Or manually run it.) This will trigger the Playground to interpret UI related things. At this point, the word “UILabel” … Read more
let imageView = UIImageView(frame: CGRectMake(0, 0, 100, 100)) imageView.backgroundColor = UIColor.redColor() imageView.layer.cornerRadius = 8.0 imageView.clipsToBounds = true Result:
Launch Xcode 6 Documentation and API Reference Window (command-shift-0) Search for “The Swift Programming Language” Click first suggestion You will see a series of collapsable menus on the left side of the screen detailing different sections, such as “A Swift Tour”, and “Language Guide”. You can click through these to get different bits of information … Read more
As of Xcode 6.0 Beta 5, it is now possible to import your own frameworks into a playground. This provides a way to share code between your applications and playgrounds, which can both import your frameworks. To do this: Your playground must be in the same workspace as the project that produces your framework. Your … Read more
In Xcode 6.3 and later (including Xcode 7 and 8), console output appears in the Debug area at the bottom of the playground window (similar to where it appears in a project). To show it: Menu: View > Debug Area > Show Debug Area (⌘⇧Y) Click the middle button of the workspace-layout widget in the … Read more