swiftui

Hi all, I just finished watching all the WWDC sessions on SwiftUI, and I'm super excited to get started working with it. Before starting my first SwiftUI app though, I realized they never really showed how to build for multiple devices in the WWDC sessions. Does anyone know the best practice for this? Essentially what I'm asking is lets say I want to build the Landmarks app they demoed. I want to build macOS, tvOS, and iOS versions. How would I develop this app to use similar source code for all platforms? Would I write all the platform files in one Xcode project or separate? If in one, how do you decide which one to build and preview in Xcode at a certain time? And most importantly how do you tell App Store Connect which file is associated with which platform? Any help is appreciated. Thanks

Is sequential animation possible in SwiftUI? As in do animation 1, when finished do animation 2, etc.I understand that SwiftUI is basically UI based off state, so if I could just get a notification when my an animation ends or if be able to tack on a closure to an animation to be called when an animation ends, I feel like I could set up my sequential animation. I'm not seeing any way to do either of these things though, anyone have any luck in this area?

Hi,I'm just getting into using Combine with SwiftUI to update state. I have a test app I'm using to build a UI around Multipeer Networking. My Swift is a little rusty currently.Here's some code to show the context of my problem...Here's my controller object that for now handles the session, browser and advertiser. It's a BindableObject using a PassthroughSubject as Publisher.class PeerDatasource: NSObject, BindableObject, MCSessionDelegate, MCNearbyServiceBrowserDelegate, MCNearbyServiceAdvertiserDelegate { typealias PublisherType = PassthroughSubject var didChange = PassthroughSubject<Void, Never>() private var session: MCSession? var peers: [MCPeerID] { if let session = self.session { return session.connectedPeers } return [MCPeerID]() } var browser: MCNearbyServiceBrowser? var advertiser: MCNearbyServiceAdvertiser? //rest of class... }Upon a peer changing state I call didChange like so...func session(_ session: MCSession, peer peerID: MCPeerID, didChange state: MCSessionState) { DispatchQueu

Hello,Is there any way to download full Landmark sample project from WWDC19? (From Session 240 - SwiftUI On All Devices)

How to convert a UIColor to Color for use in SwiftUI?

Any idea if SwiftUI prevents applications from responding to further calls to application() after an app is up and running? I've a custom document type registered for an iOS test app, and 'opening' the document brings the app into focus as expected, but application(open:options:) never recieves a call to open the document. I'm unsure if there's some new security method in play (google and rtfm have revealed nothing so far), or if SwiftUI apps just never recieve/process that call. --Mike

Does SwiftUI support Swipe or Pan gestures?Is it possible to detect such gestures in the same or similar way as TapGesture or DragGesture?

Can one get multiple buttons to work when included in a List row?This problem can be seen in the completed version of the Apple tutorial. There, the HikeDetail or HikeView each work when previewed by itself - one can select different graphs by the Elevation, Heart Rate, and Pace buttons. However, this view does not work properly when it is included in the ProfileSummary List(). When tapping on one of the buttons, the view collapses. This is because all buttons are activated, rather than just the one tapped.It seems that List() is deciding that if it sees a button in the row, it will change multiple behaviors: 1) The button is no longer tinted - if one uses a simple button, it is tinted outside of a List. (Note: The tutorial is playing with colors to show blue/gray - even in the List view). 2) The button no longer flashes when pressed/tapped. 3) A tap in the row activates the actions of all buttons included in that row.I can understand that this might be the desired behavior to make the simplest row - when onl