This works for me: import AVFoundation import CoreMedia … if let url = Bundle.main.url(forResource: “small”, withExtension: “mp4″) { let asset = AVAsset(url: url) let duration = asset.duration let durationTime = CMTimeGetSeconds(duration) print(durationTime) } For the video here it prints “5.568” which is correct. Edit from comments: A video that returns 707 seconds when divided by … Read more
Although SwiftUI does not provide a direct method to convert a view into an image, you still can do it. It is a little bit of a hack, but it works just fine. In the example below, the code captures the image of two VStacks whenever they are tapped. Their contents are converted into a … Read more
@State private var selection = 3 TabView(selection:$selection) { QuestionView() .tabItem { Image(systemName: “questionmark”) Text(“Questions”) } .tag(1) DataView() .tabItem { Image(systemName: “chart.bar.fill”) Text(“Data”) } .tag(2) Text(“Empty Tab right now”) .tabItem { Image(systemName: “bolt.horizontal.fill”) Text(“Trend”) } .tag(3) } In this case I set default selected the third Tab. Change selection to the desired Tab.
Thanks for answering your own question here. Your solution helped me make a generic HostingTableViewCell class. I’ll post it here if anyone finds this question on Google like I did. import SwiftUI class HostingTableViewCell<Content: View>: UITableViewCell { private weak var controller: UIHostingController<Content>? func host(_ view: Content, parent: UIViewController) { if let controller = controller { … Read more
The answer here is that the “await getSomethingLater” must be called from an async context. Literally that means changing this: let result = await tryThis.getSomethingLater(3.141592653589793238462) print(“result: \(result)”) into this: Task { let result = await tryThis.getSomethingLater(3.141592653589793238462) print(“result: \(result)”) } So the whole thing becomes: class TryThis { func getSomethingLater(_ number: Double) async -> String { … Read more
What you are doing in items.forEach { $0.instanceMethod() } let mappedItems = items.map { $0.mappingInstanceMethod() } is a clean and Swifty way. As explained in Is there a way to reference instance function when calling SequenceType.forEach?, the first statement cannot be reduced to items.forEach(Item.instanceMethod) There is one exception though: It works with init methods which … Read more
You can do that in super elegant way with animator (reducing UIVisualEffectView alpha will not affect blur intensity, so we must use animator) Usage as simple as: let blurEffectView = BlurEffectView() view.addSubview(blurEffectView) BlurEffectView realisation: class BlurEffectView: UIVisualEffectView { var animator = UIViewPropertyAnimator(duration: 1, curve: .linear) override func didMoveToSuperview() { guard let superview = superview else … Read more
protocol TestProtocol { var name : String {set get} var age : Int {set get} } Provide a default extension for the protocol. Provide the default implementation for all the variables set and get which u want them to be optional. In below protocol, name and age are optional. extension TestProtocol { var name: String … Read more
You can’t use set like that because when you call self.document = newValue you’re just calling the setter again; you’ve created an infinite loop. What you have to do instead is create a separate property to actually store the value in: private var _document: UIDocument? = nil var document: UIDocument? { get { return self._document … Read more
[.list] will only show the notification in the notification center (the menu that shows when you pull down from the top) [.banner] will only pop down a banner from the top like a normal push notification [.list, .banner] will do both: show the banner and also make sure it’s on the list. [.alert] does essentially … Read more