anslatesAutoresizingMaskIntoConstraints = false Label.font = UIFont(name: "Georgia", size: 48) : A demonstration of using image literals You can also download example files on GitHub here Swift playground Please note the image literals do not translate well in text based documents. Just remember to move the asset folder when moving code around. When working in Xcode projects feel free to use any image you put in the asset folder. When porting a project from an iPad playground, know where the resources folder is and the resources you used, so you can convert your code to UIImage(named:) for Xcode playgrounds. Image literals are very convenient, but they are inconsistent in use, especially in Xcode playgrounds. I rotated my phone to see the full image. The ocean literal shows on the autocomplete. You can use either the name or the image literal in the project. Xcode uses the literal name from the assets folder. In the playground, select the Fish and the Ocean image. I’ll select an iPhone 8 plus for my simulator, and warm up my simulator by right clicking Xcode in the dock and hitting OpenDeveloperTool>Simulator.īack in your playground, copy the viewDidLoad, and replace the one in the viewDidLoad in the Xcode project. Use your team, organization identifier and organization name, and of course Swift for the language. I’ll add the UIImage(named:) method to use the image: imageView.image = UIImage(named:"Fish") To get the fish in, you’ll need the image name. The Swift Xcode Playground doesn’t like adding literals. Stop the code.ĭelete the literal, and try adding the fish back. You’ll notice as it loads, we only get the icon for the image literal. Open the live view by clicking the assistant editor button. Xcode should start to run the application. Swipe the live view to the left to see the entire scene.Ĭlose the playground, and open the same file as a Xcode playground. If you want to change to the ocean scene, tap the literal, tap the Ocean scene,Īnd you have the ocean. Run this code, and you get the image of the fish dinner. You can find it at the top of the image literal selection, but that’s pretty late in the game. On iPad, it’s difficult to get a name of an image. You’ll find at the bottom in autocomplete a small icon with a mountain and sun. I’ve set up a simple photo background in viewDidLoad. You’re most likely to use an image literal in a swift playground for iPad.ĭownload the project from GitHub and install the Swift playground in an iPad Playground. Let’s take look at porting code with image literals. You’ve probably seen them in the auto complete in Xcode, but have you ever used Image Literals? Image literals pop images directly into code without initializing a UIImage. After that, you will need a subscription to get access to it. The first week of a week’s tip will be available for free. Generated by jazzy ♪♫ v0.14.3, a Realm project.IOS Development tips weekly is a series you can find at the and LinkedIn Learning libraries. title ↓ = nil let foo = bar ? 0 ↓ : 1 let foo = bar ↓ ? 0 : 1 concat ) "let foo = 1" enum Enum tabbedViewController. normal ) let doubleValue = - 9e-11 let foo = GenericType Void > () let foo = Foo, Baz > () let foo = SignalProducer, Error > (). setImage ( # imageLiteral ( resourceName : "image-1" ), for. removeAtIndex ( - 200 ) let name = "image-1" button. Default configuration: severity: warning, lines_look_around: 2, skip_aligned_constants: true, allowed_no_space_operators: let foo = 1 + 2 let range = 1.Operators should be surrounded by a single whitespace when they are being used
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