I have two images of different sizes that I want to composite together using a CIFilter. ImageA size is 2400x1800. ImageB size is 1200x900. As the two images are different sizes, when the images are composited together, ImageB is positioned…
I'm using SwiftUI to build a list with images from an API. There's some lagging while the image is being downloaded. I can understand that the issue comes from the CatRowView, because when I replace it with a Image(systemName: it…
Hello everyone junior dev here, I fetch data from server in background thread and update ui in main thread, it works but i also have separate ui image loader from url here: extension UIImageView { func load(url: String) { guard…
I have an app that can choose photo from gallery and then upload it to the server. I have 2 requirements from the server side: Compress image to 1mb max Image should have metada/exif data To select image from gallery,…
It is necessary to change the color of the image to 00ff00. But it turns out to 4fff00. I tried it in two ways. The result is the same. internal static func imageColorMatrix1(image: UIImage) -> UIImage? { let colorMatrix =…
I'm trying to change the image scale in a UIImageView, I want it to be smaller and keep its ratio. I tried cameraPhoto.image?.scale = CGFloat(0.5) but it doesn't work, i get Cannot assign to property: 'scale' is a get-only property…
My goal is to convert SwiftUI view to image. I am currently building it for iOS 15 here is the code that converts the view to image extension View { func snapshot() -> UIImage { let controller = UIHostingController(rootView: self)…
I haven't thought about it much until today. Basically I'm in a situation in which I have the same UIImage appear multiple times in my ViewControllers, and I'm not sure what the impact is. class MyObjectA{ private(set) var myName: String…
I'm trying to create a Thumbnail image from a video: func getImageFromUrl(url:URL) -> UIImage?{ print(url) let video = AVURLAsset(url: url) let thumbnailGenerator = AVAssetImageGenerator(asset: video) do { let cgImage = try thumbnailGenerator.copyCGImage(at: CMTimeMake(value: 0, timescale: 1), actualTime: nil) let UiImage…
Hello I am new at swift and IOS apps , I am trying to animate movement of cardBackImage (UIImage) from deckPileImage to the card view, but everything got different superViews and I have no idea how to do it properly…