xcode

问题 I am trying to use results from a Realm query as section headers in a UITableView. Realm classes: class Person: Object { @objc dynamic var personId = UUID().uuidString @objc dynamic var firstName: String = "" @objc dynamic var surname: String = "" @objc dynamic var mobileNumber: Int = 0 @objc dynamic var password: String = "" override static func primaryKey() -> String? { return "personId" } } class Category: Object { @objc dynamic var categoryId = UUID().uuidString @objc dynamic var person:

问题 I am trying to use results from a Realm query as section headers in a UITableView. Realm classes: class Person: Object { @objc dynamic var personId = UUID().uuidString @objc dynamic var firstName: String = "" @objc dynamic var surname: String = "" @objc dynamic var mobileNumber: Int = 0 @objc dynamic var password: String = "" override static func primaryKey() -> String? { return "personId" } } class Category: Object { @objc dynamic var categoryId = UUID().uuidString @objc dynamic var person:

问题 My app has a button that should take a screenshot of whatever is on the screen by calling "takeSnapShot" (see code below). I have two views and one of them is a picker view that I use for the camera, so in the screen I see the image coming from the camera and next to it another view with images. The thing is that I capture the screen but it doesn't capture the image coming from the camera. Also, I think I render the view.layer but the debugger keeps saying> "Snapshotting a view that has not

问题 My app has a button that should take a screenshot of whatever is on the screen by calling "takeSnapShot" (see code below). I have two views and one of them is a picker view that I use for the camera, so in the screen I see the image coming from the camera and next to it another view with images. The thing is that I capture the screen but it doesn't capture the image coming from the camera. Also, I think I render the view.layer but the debugger keeps saying> "Snapshotting a view that has not

问题 i have a timer in SwiftUI which works when opening the view for the first time. When navigating back and opening again, the timer does not start. Any idea what can be wrong ? import SwiftUI struct ClockDetail: View { @State var seconds: Int = 0 @ObservedObject var motion: MotionManager let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect() var body: some View { VStack(alignment: .leading) { Text("\(seconds)").font(.title).onReceive(timer) { output in self.seconds += 1 }

问题 In an earlier post I asked about the right settings for initializing a SCNParticleEngine. With some hints from Zay I managed to get both the SCNP and code paths to work – almost identically. Except that the SCNP path had the particles shrinking over time while the coding path did not. Turns out that buried inside the SCNP file is a dictionary entry “Size” which is a SCNParticlePropertyController. Here’s the code from the debugger: The gotcha is that when I open the SCNP file in the editor, I

问题 In an earlier post I asked about the right settings for initializing a SCNParticleEngine. With some hints from Zay I managed to get both the SCNP and code paths to work – almost identically. Except that the SCNP path had the particles shrinking over time while the coding path did not. Turns out that buried inside the SCNP file is a dictionary entry “Size” which is a SCNParticlePropertyController. Here’s the code from the debugger: The gotcha is that when I open the SCNP file in the editor, I

问题 When I try to call sessionManager.initialize() neither func sessionManager(manager: SPTSessionManager, didFailWith error: Error) nor func sessionManager(manager: SPTSessionManager, didInitiate session: SPTSession) are called. I have a nodeJS server running on AWS for token access and refresh and I have also tried running a local Ruby server to get the token. No matter what, calling initialize() does nothing. It does fail or succeed and nothing is output to console. I have tried running the

问题 I have an iOS App originally developed for iPhone 4 and 5. After doing some updates, I tried to run it on iPhone 7 (Simulator), the Views won't fill the screen any more. They (inclusing the title bar) leave a black margin on the right and the bottom of the screen. I found a lot of similar posts regarding iPhone 5, where an appropriate launch image was missing. Yet, I have included all possible launch images in their correct sizes as asset catalogue (shows no warnings any more, puh), and the

问题 So the safeAreaInset.bottom on the iPhone 11 Pro Max is 34.0, but when the keyboard is open, it changes the safeAreaInset.bottom to the height of the keyboard (346.0 points). Is there any way to access the safeAreaInset.bottom value (34.0) when the keyboard is open? For reference, my content view has a geometry reader in it: var body: some View { GeometryReader { proxy in //I pass in proxy into views in here and then access the safe area with proxy.safeAreaInsets.bottom } } I also need this