I'm new to Swift and I want to load a special image from assets. Learning Outcomes • Recognize the procedural steps to draw lines with Core Graphics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy. framework into your Xcode project. Featured on Meta Employee profiles are now marked with a "Staff" indicator. Buying assets of a business entails purchasing items such as property, fixtures and equipment which results in the previous owner's business ceasing to exist. The type specified here is [String : UIImage], this is similar to the Objective-C NSDictionary type, a HashMap in Java, or just Hash in Ruby/JS, but in Swift it’s very strict about the type. Yep, we can now define and organize named colors inside of an Asset Catalog! We can select "New Color Set", and then use all of the normal features of Asset Catalogs, including new Wide Gamut support. Facebook Twitter GitHub. Continue reading. Asset Catalogs allow you to specify retina and non-retina versions together in one spot. • UIImage and UIImageView Image assets in asset catalog Files in application/framework bundle Files in Documents and Caches directories. Uncaught TypeError: $(…). I just want to upload all photos AND videos using HTTP(s), so I need the library to return the videos as well. Earning assets are income-producing investments that are owned, or held, by a business, institution or individual. The native source object will update either the android or ios properties, depending on the target os. Using this generated code, it's really easy to instantiate non-optional UIImage instances for assets: let logoImage = UIImage. One issue I am having with the cached and non-cached resources of UIImage. Unfortunately, we've come to rely on our fellow graphic designers to do a lot of the grunt work for us, even though tools like Xcode 6 give us the capability to do it ourselves. 🏞 MediaBrowser can display one or more images or videos by providing either UIImage objects, PHAsset objects, or URLs to library assets, web images/videos or local files. Update note: This tutorial was updated for iOS 8 and Swift by Nick Lockwood, and checked against Xcode 6 beta 7! Original post by Tutorial Team member Jake Gunderson. RemoveObserver(NSObject, NSString) RemoveObserver(NSObject, NSString) Stops the specified observer from receiving further notifications of changed values for the specified keyPath. In this tutorial, we'll look at 3 different ways to use asset catalog images in our code. Afterwards, you wil also change the name of the picture in Xcode. FromBundle("NameOfAssetCatalog") but it returns always null. All the icons have a filled version. High-quality 3D models for game developers! Dev Assets allows you to pay what you want for full-featured asset packs. With enough tiles, you can supplement Google's map data for the entire map, at multiple zoom levels. Icon font for the web. Core Image is a powerful framework that lets you easily apply filters to images. In your Assets. I want to make this ScrollRect scrollable in the vertical axis and the content inside ScrollRect will draggable when I drag it out horizontally. In case of UIImage-generating canvases, more options become available in the canvas settings. Please try again in a few minutes. The motivation for this was to enable the easy use of scaleable vector assets in iOS apps. Step 2: Add an ImageView. Browse other questions tagged objective-c ios uiimage assets filepath or ask your own question. I'm an developing app in xamarin ios, trying to get a UIImage Object from a given Asset-Library-Url. framework into your Xcode project. Xcode 9 uiimage image not shown because Xcode 9 wants you to keep all your image files inside the Assets. This is the way I create UIImages from web URLs:. 0 Run carthage update to build the framework and drag the built SwiftGif. The trend for flat user interface design has mostly removed the borders, gradients and drop shadows that were once common to buttons and other controls. xcassets file. the button. The motivation for this was to enable the easy use of scaleable vector assets in Swift iOS apps. iOS, Swift, iOS App, Grocery, shopping. I've done similar work in the past targeting the Flash Player and using AGAL. How To Make A Dice Roll iPhone App. Most of us have run into this for images and everyone has to use the app icon here, but that's just one thing you can do with assets. Get (Read) Exif data from UIImage. Myriad code samples litter Stack Overflow, each claiming to be the One True Solution™ — all others, mere pretenders. With the release of iPhone OS 3. We use cookies for various purposes including analytics. A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community. absoluteString). iOS implementations use a custom URL scheme to launch the Facebook app and pass it content. We overwrite the setter method for the asset in order to convert the asset’s thumbnail into a UIImage and set it to the contents of the UIImageView; Now that we have the custom cell created, we need to hook it up and create the UIImageView inside of Storyboard. UIImage+RoundedCorner. Ok, pretty straight forward. Welcome to the Friendly Chat codelab. Face detection on the iPhone Alasdair Allan, Babilim Light IndustriesThe current generation of high-end mobile devices, such as the iPhone or iPod touch, are quite capable of performing fairly advanced feats of computer vision in real-time. We use icon everywhere to convey action intent like + would be to add an item or a bin would be to delete one. The problem is that UIImage(named:) assumes the asset (MyImage. Vocabulary. Our iOS icon pack follows the guidelines from Apple. Start typing NSObject into the Subclass of (it should autocomplete) then name the Class LetterImageGenerator (doesn't really matter what you name it as long as it makes sense, always try to name things according to what it does). storyboard file and drag the label and image view and drop into the table View cell like as shown below. we need to assign a UIImage object into it so we create a new UIImage object and initialize it. 0 or Mac OS X look-and-feel. In this codelab, you'll learn how to use the Firebase platform to create iOS applications. Autocropping is a feature that automatically finds the most useful sub-region of a trackable image, and uses that for tracking and detection. This example uses MGLAnnotationImage, which is intended to be used with small, static images. And now you can go use UIImage(asset:. Say you have a home. Between various things being deprecated, and the new Photos framework (which looks cool but seemed a bit heavyweight for this purpose) finding this took me a while!. The motivation for this was to enable the easy use of scaleable vector assets in Swift iOS apps. The UIImage class also offers several options for drawing images to the current graphics context using different blend modes and opacity values. Working with Images. Load an image to UIImage from a file path to the asset library 本文由网友转载,转载信息如下 标题:Load an image to UIImage from a file path to the asset library. Go to the Assets folder in Xcode and drag all the images in it. RegisterImage(UIImage, UITraitCollection) RegisterImage(UIImage, UITraitCollection) Registers image with the asset and associates it with traitCollection. Initializes and returns the image object with the specified data and scale in a thread-safe manner. Reason, the AppIcon from the asset catalog is not placed in the catalog after compiling rather it gets copied into the Apps bundle. asset: ImageAsset. xcassets对于加载方法的影响 2017. Some possibilities: [code]var imageA1: UIImage? = nil var imageA2: UIImage! var imageA3: UIImage = UIImage() var imageA4: UIImage? = UIImage() var imageA5: UIImage. German Swedish Vietnamese Thai Slovak Japanese English French Italian Spanish Turkish Malay Chinese Arabic Finnish Indonesian Korean Czech Dutch Greek Danish. Image Asset Collections. iOS 18 Nov 2014. With some assistance from stackoverflow, I was able to construct a function in Objective-C that compresses the images exactly like Whatsapp does. Parameters. Just add images for each screen size to the Asset Catalog, and like magic, it works. ## Description This issue only occurs in Visual Studio, not in Xamarin Studio. You use image objects to represent image data of all kinds, and the UIImage class is capable of managing data for all image formats supported by the underlying platform. Berkeley Assets© is a multi-asset company owned by British Nationals with a strong, diversified portfolio of investments across the real estate, hospitality, logistics and technologies sectors. President Donald Trump likes a weaker dollar, and some corners of the market agree. birdImageView setImage:[UIImage imageNamed:@"defaultBirdImage. Once the video is recorded and chosen, this function saves the video to the documents directory. Though the greenback’s knee-jerk reaction from Trump’s comments Wednesday has all but been reversed, the U. You will implement a chat client, and monitor its performance using Firebase. All the icons have a filled version. Online Maps - is a universal mapping solution that is suitable for all applications and games that use a map. Hi, here's a problem. By the end of this tutorial, you'll have learned the following: how to make. Getting video from Asset Catalog using On Demand ressources. The purpose of an asset catalog is to manage the varying sizes of icons, launch screens, and other images required to support multiple iOS devices. Unfortunately the application now crashes when creating the view with the message about the missing image. Xcode provides a facility to migrate old apps to using asset catalogs. Ontario Teachers' Pension Plan, RedBird Capital Partners, and Aethon Energy Management acquired upstream and midstream oil and gas assets from J-W Energy. UIImage Picker Controller. The Assets Library framework is deprecated as of iOS 9. Buying Assets of a Business: Everything You Need to Know. We’ll create our own time using CMTimeMake, setting it to the very beginning here. Use Unity to build high-quality 3D and 2D games, deploy them across mobile, desktop, VR/AR, consoles or the Web, and connect with loyal and enthusiastic players and customers. A lot of the new UIAppearance features allow you to customize UIKit widgets by supplying images for various parts of buttons, switches, etc. More of a mainstream UI element on iPad. How to add animation to your xcode project using the AnimatedImages Class. code is not a function (Summernote) knitr kable and “*” Monitor incoming IP connections in Amazon AWS; Scala Class body or primary constructor body. Picked multiple images from gallery using ELCImagePickerViewController. You see, there comes a time in everyone's life when you want to have a fullscreen image in your app. We again … - React Native September 2018 (v0. With some assistance from stackoverflow, I was able to construct a function in Objective-C that compresses the images exactly like Whatsapp does. An asset catalog comprises a collection of image sets, app icons and launch screens and is created within Xcode. Icon image assets. asset: ImageAsset. Daniel Vaughan is a nine-time Microsoft MVP and co-founder of Outcoder, a Swiss software and consulting company dedicated to creating best-of-breed user experiences and leading-edge back-end solutions, using the Microsoft stack of technologies--in particular Xamarin, WPF, and the UWP. Initialises this object with a UIImage, assigns it the given name and sets whether autocropping should be used. setimage syntax is killing wanting UIImage or String etc Any help much appreciated. x with UIImage and it’s imageWithContentsOfFile and initWithContentsOfFile. Yep, we can now define and organize named colors inside of an Asset Catalog! We can select "New Color Set", and then use all of the normal features of Asset Catalogs, including new Wide Gamut support. When you open a storyboard or xib in iOS Designer, any Image Sets in the asset catalog will be picked up and will be selectable when clicking on the drop down for the Image property of a UIImage view. The File System. I think that when you draw an image into a new graphics context and then create a fresh UIImage from that context, it removes the orientation information by default. Unfortunately the application now crashes when creating the view with the message about the missing image. In general, your sharing flow should: Check that your app can resolve Facebook's custom URL scheme. I've done similar work in the past targeting the Flash Player and using AGAL. Please try again in a few minutes. Parameters. Kazunobu Tasaka is the developer of Misen: "Script to support easily using Xcode Asset Catalog in Swift. Asset Catalogs makes asset management easy. To make up for that, here's a class that loads images from PDF files directly, building them to whatever UIImage size you need. In your Assets. x with UIImage and it's imageWithContentsOfFile and initWithContentsOfFile. If we don’t use asset catalogs, we are required to put such information in the bundled file’s name (e. jpg image with UIImage. UIImage* image = [UIImage imageNamed:@"Ladybird"]; ビルドすれば画像が表示されます。 Asset Catalog は json により参照元の画像ファイル名と Image Set 項目の Name を管理しているため、画像名や拡張子を気にしなくて使用できるのでとても便利です。 画像をスライスする. png")!. A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community. More of a mainstream UI element on iPad. png image 3 for ip. portrait and landscape). car file, the bundle is located with the technique mentioned before, preview image assets are loaded using UIImage and vector data assets are loaded using NSDataAsset. iOS 18 Nov 2014. 8 billion in the event of a successful completion of Occidental's ongoing bid for Anadarko. This will show you how to save and load images in a way that is very easy and straight forward. 画像を画像ファイルを Assets. Proceed with caution. 最近调第三方代码的过程中发现,有一个 UIImage,无论将图片替换成什么,在页面上始终显示成蓝色。 使用 Assets 配置 iOS. Step 2: Add an ImageView. In this tutorial, we'll look at 3 different ways to use asset catalog images in our code. By using Android Implicit Intents and iOS Custom URL Schemes, your app can pass photos, videos, and stickers to the Instagram app. Before I proceed, let me explain the difference between UIImage and UIImageView. iOS app When adding an image for use in a Xamarin. Graphic Assets. Uiimage will let you select image files outside the Assets, but will make the uiimage control to not show at all. Yep, we can now define and organize named colors inside of an Asset Catalog! We can select "New Color Set", and then use all of the normal features of Asset Catalogs, including new Wide Gamut support. UIImage加载图片的方式以及Assets. 0) 返回的图片数据量大很多. I'm not sure if there is any change required on iOS, but I'd still like to see a repro for the tint issue mentioned. Picked multiple images from gallery using ELCImagePickerViewController. Metal Kernel Functions / Compute Shaders in Swift As part of a project to create a GPU based reaction diffusion simulation , I stated to look at using Metal in Swift this weekend. Or use image literals, a feature introduced in Xcode 8. iOS app, the developer will use an. Use ComponentOne's new GetImage() method to capture an image as a byte array of a control in iOS, Android, and Windows Phone in Xamarin. Despite getting a major API update with WatchOS 2, I'm actually kinda irked with the rather closed access we have to the Apple Watch. Practical example: theming. Using this generated code, it’s really easy to instantiate non-optional UIImage instances for assets: let logoImage = UIImage. center: Center the image in the view along both dimensions. Dictionary syntax This is the first time we've seen this syntax so let me explain real quick. Asset Catalogue. Styling buttons using the Asset Catalog Mar 7, 2016 · 5 minute read Appearance It is easy to forget how iOS applications looked before iOS 7. png image 2 for iphone 5/5s = [email protected] With an Image View we display them in iPhone programs. Featured on Meta Employee profiles are now marked with a “Staff” indicator. Reference Animation Asset Set the Sprite object's texture property or define the qc. Metal Kernel Functions / Compute Shaders in Swift As part of a project to create a GPU based reaction diffusion simulation , I stated to look at using Metal in Swift this weekend. Add the image assets that you want to use as "frames" in your animation to the Assets. In addition to helping your family after your death, a prepaid funeral contract can be a good way to spend down assets in order to qualify for Medicaid. Don't be fooled by your UI in the simulator (because you can use physical keyboard!). Xcode provides a facility to migrate old apps to using asset catalogs. Asset Catalogs makes asset management easy. Online Maps - is a universal mapping solution that is suitable for all applications and games that use a map. The Secret of Storing and Loading UIImage(s) These images can’t be put in our Assets Catalog because, for example, they’re tailored to the current user, or for similar reasons. xcassets folder. Download these three images; you're going to add them to the project. The enum has a non-optional `image` var you can use to get a UIImage for that asset. Witherell said Plymouth used the proceeds to pay down its credit facility and will use the balance to purchase additional assets. Use Font Awesome from your Xamarin. A common use case for UIImage Asset is the grouping of multiple images of the same item at different display scales. Forms project. With enough tiles, you can supplement Google's map data for the entire map, at multiple zoom levels. Before I proceed, let me explain the difference between UIImage and UIImageView. Then we’ll turn the CGImage into a more usable UIImage. To add assets to a project, follow the steps below. It seems to report between 0-3 times depending on the size of the asset we're uploading. iOS app and displaying that image either by using C# code or by assigning it to a control in the iOS Designer. Source Image: The Texture that represents the image to display (which must be imported as a Sprite). swift, we've updated the viewDidLoad method to add a custom UIStepper with image assets set on the left, right and divider elements. Welcome to the Friendly Chat codelab. We’ll create our own time using CMTimeMake, setting it to the very beginning here. png, [email protected] You will implement a chat client, and monitor its performance using Firebase. Each time we add an image we need to open the image assets and copy the exact image name and pass it to initialize the image. I'm an developing app in xamarin ios, trying to get a UIImage Object from a given Asset-Library-Url. Converting UIView to UIImage for iOS Apps. Unfortunately the application now crashes when creating the view with the message about the missing image. iOS 18 Nov 2014. The available options for a Material depend on. car file, the bundle is located with the technique mentioned before, preview image assets are loaded using UIImage and vector data assets are loaded using NSDataAsset. pdf that is a 100x100px vector asset. Add the image assets that you want to use as "frames" in your animation to the Assets. 【 Xamarin 記事一覧 】 1 表示 イメージビュー(UIImageView)を使用して、画像を表示できます。 画像は、UIImageViewのプロパティImageにUIImageオブジェクトとして設定します。. Posted on 29th July 2019 by Dixit Akabari. With an Image View we display them in iPhone programs. center: Center the image in the view along both dimensions. The UIImage class explicitly asks for a String instance. plist file and an Assets. Written in. I have a simple image movement View based project working. What happens if the asset's name changes? And what happens if you misspell the. For some reason your suggested change could not be submitted. An image picker controller manages user interactions and delivers the results of those interactions. png, [email protected] Products Xamarin for Visual. Continue reading. Here's one way of doing it: var image: UIImage = UIImage(named: "name_of_your_file. Is it possible to drag UIImage out of ScrollRect? I've create the UI that have a content in ScrollRect. In this tutorial, we'll look at 3 different ways to use asset catalog images in our code. I want to make this ScrollRect scrollable in the vertical axis and the content inside ScrollRect will draggable when I drag it out horizontally. iOS 18 Nov 2014. png image 3 for ip. All the icons have a filled version. Now I tried to load my. But there are a few sticking points. Mark it as sprite (2D. setimage syntax is killing wanting UIImage or String etc Any help much appreciated. Some possibilities: [code]var imageA1: UIImage? = nil var imageA2: UIImage! var imageA3: UIImage = UIImage() var imageA4: UIImage? = UIImage() var imageA5: UIImage. 1 UIImage Supported File Formats. However, it’s easy to accidentally cause crashes or have to deal with optionals. Icon font for the web. Jul 14, 2015 ~ David G Shrock ~ Filed under: programming One easy way to load an image by name (from assets or from nib) is to use imageNamed method from UIImage. An image picker controller manages user interactions and delivers the results of those interactions. UIImageを高画質のままリサイズするメソッド extension UIImage{ // 画質を担保したままResizeするクラスメソッド. RemoveObserver(NSObject, NSString) RemoveObserver(NSObject, NSString) Stops the specified observer from receiving further notifications of changed values for the specified keyPath. Parameters. defaultManager() let option = PHImageRequestOptions() var. If we don't use asset catalogs, we are required to put such information in the bundled file's name (e. One issue I am having with the cached and non-cached resources of UIImage. You can get all kinds of effects, such as modifying. Since they are vectors what is the need of having a large version of the asset? "Ball. Start typing NSObject into the Subclass of (it should autocomplete) then name the Class LetterImageGenerator (doesn't really matter what you name it as long as it makes sense, always try to name things according to what it does). Reference Sound Asset. Cash you keep in a Barclays bank account is from an entirely different asset class. With some assistance from stackoverflow, I was able to construct a function in Objective-C that compresses the images exactly like Whatsapp does. Go to the Assets folder in Xcode and drag all the images in it. Picked multiple images from gallery using ELCImagePickerViewController. iOS supports high resolution displays via the scale property on UIScreen, UIView, UIImage, and CALayer classes. Select Cocoa Touch Class and make sure iOS is selected and hit Next. Before this addition, we often found ourselves creating a Swift class that had methods to return UIColor objects for the colors we’d use throughout our app. iOS implementations use a custom URL scheme to launch the Facebook app and pass it content. After playing around a bit with UIImageJPEGRepresentation ( UIImage *image, CGFloat compressionQuality), I found that the compressionQuality was 50% or a factor 0. I'm new to Swift and I want to load a special image from assets. 0 and later provides more features and better performance for working with a user’s photo library. We use cookies for various purposes including analytics. Unfortunately, we've come to rely on our fellow graphic designers to do a lot of the grunt work for us, even though tools like Xcode 6 give us the capability to do it ourselves. TRIGGER ADDON. iOS 18 Nov 2014. Welcome to the Friendly Chat codelab. Mainly because to convert the Texture2D (from the RenderTexture) to the UIImage, then to add to the video frame, I encode the texture in PNG, get the bytes and call the native objective-C, which creates the UIImage. the button. Part of my current project, a rewrite of my Nodality application in Swift, requires similar functionality but I wanted to improve the scaling quality and handle images with different orientations (i. xcassetsフォルダーに入れると2xのスペースに設定されました。 サンプルコード 画像をプロジェクト内に置きましたので、それを取得するのですがUIImageを使って画像名からインスタンスを作成します。. 而UIImagePNGRepresentation只需要图片引用作为参数. Just add images for each screen size to the Asset Catalog, and like magic, it works. Metal Kernel Functions / Compute Shaders in Swift As part of a project to create a GPU based reaction diffusion simulation , I stated to look at using Metal in Swift this weekend. You use image objects to represent image data of all kinds, and the UIImage class is capable of managing data for all image formats supported by the underlying platform. A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community. Reference Texture Asset Set the UIImage object's texture property or define the qc. If the image is larger than the view, scale it down uniformly so that it is contained in the view. Proceed with caution. Each time we add an image we need to open the image assets and copy the exact image name and pass it to initialize the image. Taking pictures, recording movie and choosing items from the user's media library Work with image and video assets managed by the. In our visual world images are important. The Secret of Storing and Loading UIImage(s) These images can’t be put in our Assets Catalog because, for example, they’re tailored to the current user, or for similar reasons. President Donald Trump likes a weaker dollar, and some corners of the market agree. Learning Outcomes • Recognize the procedural steps to draw lines with Core Graphics. 🏞 MediaBrowser can display one or more images or videos by providing either UIImage objects, PHAsset objects, or URLs to library assets, web images/videos or local files. Xamarin has built-in support for the MVVM pattern including data binding, making it easy to follow this design pattern so that you can create application code that's better tested and easier to extend without requiring radical changes. Whether it's displaying large images in a photo viewer type situation or as simple as an icon for a tab bar item. The type specified here is [String : UIImage], this is similar to the Objective-C NSDictionary type, a HashMap in Java, or just Hash in Ruby/JS, but in Swift it’s very strict about the type. Metal Kernel Functions / Compute Shaders in Swift As part of a project to create a GPU based reaction diffusion simulation , I stated to look at using Metal in Swift this weekend. When the market for such assets ceases to function, it is described as "frozen". The Instagram app will receive this content and load it in the story composer so the User can publish it to their Instagram Stories. The File System. Then we’ll turn the CGImage into a more usable UIImage. you'll see that there's already a set of 13 images, each of these images. It seems to report between 0-3 times depending on the size of the asset we're uploading. Practical example: theming. I already do a lot of search for that but I didn’t get any proper solution. In this codelab, you'll learn how to use the Firebase platform to create iOS applications. xcassets make a new image set (call it "texture1") and add the above texture in the 3x slot. You can get all kinds of effects, such as modifying. Graphic Assets. Xamarin has built-in support for the MVVM pattern including data binding, making it easy to follow this design pattern so that you can create application code that's better tested and easier to extend without requiring radical changes. Now move to Main. Most of us have run into this for images and everyone has to use the app icon here, but that's just one thing you can do with assets. There almost no case where you have to think about the higher resolution assets, it almost seems like the system is handling it pretty magically. I am successful setting image in a imageview so assets and array are fine. The Secret of Storing and Loading UIImage(s) These images can’t be put in our Assets Catalog because, for example, they’re tailored to the current user, or for similar reasons. A PHAsset contains metadata such as the asset's media type and its creation date. Posted on 29th July 2019 by Dixit Akabari. In this tutorial, we'll look at 3 different ways to use asset catalog images in our code. pdf" and a "ball_large. What's wrong with this? And how can we improve this example? Let me ask you a few questions first. Check if UIImage exists in assets. Graphic Assets. TEXTURE type's field in behaviour script. UIImageView. 【 Xamarin 記事一覧 】 1 表示 イメージビュー(UIImageView)を使用して、画像を表示できます。 画像は、UIImageViewのプロパティImageにUIImageオブジェクトとして設定します。. Kazunobu Tasaka is the developer of Misen: “Script to support easily using Xcode Asset Catalog in Swift. When load blue image as source-file UIImage(named: "Blue. xcassets file in Xcode. • Describe the procedure of performing drawing operations within an image context, and updating a UIImageView with the resulting image. Bid-Assets is a full service nationwide auction company, conducting business liquidations and commercial equipment online auctions. If we don’t provide such info, a UIImage instance created from such file will have a default scale factor of 1. After fetching a record containing an asset, we can grab the downloaded file from disk using the fileURL property of the CKAsset: let asset = spaceshipRecord ["image"] as! CKAsset imageView. #Usage Add the sources files in the UIImage+PDF sub folder to your project. Furthermore, we can have SwiftGen run every time we build the app in order to keep the generated code up to date. xcassets对于加载方法的影响 2017. Core Image is a powerful framework that lets you easily apply filters to images. Swift UIImageView Example This Swift tutorial uses a UIImageView and a UIImage to display an image from the Assets. Metal Kernel Functions / Compute Shaders in Swift As part of a project to create a GPU based reaction diffusion simulation , I stated to look at using Metal in Swift this weekend. Users of Online Maps v2, please read this:. Color Assets. Learning Outcomes • Recognize the procedural steps to draw lines with Core Graphics.