swiftui

问题 How can I preview a device in landscape mode in SwiftUI? I just have a simple preview like this: struct ContentView_Previews : PreviewProvider { static var previews: some View { ContentView() } } 回答1: You can't rotate the device in preview ( yet ), but you can set the size to any landscape size you want for PreviewProvider : struct ContentView_Previews : PreviewProvider { static var previews: some View { ContentView() .previewLayout(.fixed(width: 1024, height: 768)) // iPad Mini landscape

问题 How can I preview a device in landscape mode in SwiftUI? I just have a simple preview like this: struct ContentView_Previews : PreviewProvider { static var previews: some View { ContentView() } } 回答1: You can't rotate the device in preview ( yet ), but you can set the size to any landscape size you want for PreviewProvider : struct ContentView_Previews : PreviewProvider { static var previews: some View { ContentView() .previewLayout(.fixed(width: 1024, height: 768)) // iPad Mini landscape

问题 I have a TabView in SwiftUI in the PageViewTabStyle so i can swipe from page to page. I'd like to have a setting that "locks" the current view in place, so the user cannot swipe. Googling and reading docs isn't turning up anything obvious for me, so I was hoping the gurus on SO could help me out. In short, my code looks like TabView { ForEach(0..<5) { idx in Text("Cell: \(idx)") } } .tabViewStyle(PageTabViewStyle()) I have found the disabled property, but then it appears that all tap events

问题 I have a TabView in SwiftUI in the PageViewTabStyle so i can swipe from page to page. I'd like to have a setting that "locks" the current view in place, so the user cannot swipe. Googling and reading docs isn't turning up anything obvious for me, so I was hoping the gurus on SO could help me out. In short, my code looks like TabView { ForEach(0..<5) { idx in Text("Cell: \(idx)") } } .tabViewStyle(PageTabViewStyle()) I have found the disabled property, but then it appears that all tap events

问题 I was wondering how to provide an empty state view in a list when the data source of the list is empty. Below is an example, where I have to wrap it in an if/else statement. Is there a better alternative for this, or is there a way to create a modifier on a List that'll make this possible i.e. List.emptyView(Text("No data available...")) . import SwiftUI struct EmptyListExample: View { var objects: [Int] var body: some View { VStack { if objects.isEmpty { Text("Oops, loos like there's no data

问题 I was wondering how to provide an empty state view in a list when the data source of the list is empty. Below is an example, where I have to wrap it in an if/else statement. Is there a better alternative for this, or is there a way to create a modifier on a List that'll make this possible i.e. List.emptyView(Text("No data available...")) . import SwiftUI struct EmptyListExample: View { var objects: [Int] var body: some View { VStack { if objects.isEmpty { Text("Oops, loos like there's no data

问题 I'm exploring new things came in Xcode 12 and SwiftUI 2.0 I have created a pageview onboarding screen with TabView and PageTabViewStyle in Xcode 12, iOS 14, Swift UI 2. I want to add the next button when clicking on it, the page should move to the second view. Here Text("Hello") . struct OnBoardingView: View { var body: some View { TabView { Text("Hi") Text("Hello") Text("Welcome") } .tabViewStyle(PageTabViewStyle()) .indexViewStyle(PageIndexViewStyle(backgroundDisplayMode: .always)) } } 回答1:

问题 I'm exploring new things came in Xcode 12 and SwiftUI 2.0 I have created a pageview onboarding screen with TabView and PageTabViewStyle in Xcode 12, iOS 14, Swift UI 2. I want to add the next button when clicking on it, the page should move to the second view. Here Text("Hello") . struct OnBoardingView: View { var body: some View { TabView { Text("Hi") Text("Hello") Text("Welcome") } .tabViewStyle(PageTabViewStyle()) .indexViewStyle(PageIndexViewStyle(backgroundDisplayMode: .always)) } } 回答1:

问题 I'm exploring new things came in Xcode 12 and SwiftUI 2.0 I have created a pageview onboarding screen with TabView and PageTabViewStyle in Xcode 12, iOS 14, Swift UI 2. I want to add the next button when clicking on it, the page should move to the second view. Here Text("Hello") . struct OnBoardingView: View { var body: some View { TabView { Text("Hi") Text("Hello") Text("Welcome") } .tabViewStyle(PageTabViewStyle()) .indexViewStyle(PageIndexViewStyle(backgroundDisplayMode: .always)) } } 回答1:

问题 I've seen several posts discussing how to make a transparent Navbar in SwiftUI, but none on how to make a semi-transparent one, which is surprising to me as its a very common patter on Apple's default apps. For example the Notes app: You can see the drawing through the NavBar. Anyone know how to do this, ideally in a way which works in light/dark mode? 回答1: Maybe you just need to add translucency settings in your SwiftUI view init() { UINavigationBar.appearance().isTranslucent = true }