xcode11.4

问题 After update to Swift 5.2 / Xcode 11.4 got a warning to following code: extension Data { init<T>(from value: T) { var value = value let pointer = UnsafeBufferPointer(start: &value, count: 1) self.init(buffer: pointer) } func to<T>(type: T.Type) -> T { return self.withUnsafeBytes { $0.load(as: T.self) } } } On line let pointer = UnsafeBufferPointer(start: &value, count: 1) I got Initialization of 'UnsafeBufferPointer' results in a dangling buffer pointer I can use @silenceWarning but it's

问题 I'm trying to using Swift Combine to get the changed event of a property. I have this class that publish the isLogged property class CurrentUser: Account { static let me = CurrentUser() //Singleton @Published var isLogged: Bool = false } that inherit from this other class that publish the profileImageVersion property class Account { @Published var profileImageVersion: String? init(){ self.profileImageVersion = "" } } I'm trying to subscribe to the published inherit profileImageVersion

问题 I'm trying to using Swift Combine to get the changed event of a property. I have this class that publish the isLogged property class CurrentUser: Account { static let me = CurrentUser() //Singleton @Published var isLogged: Bool = false } that inherit from this other class that publish the profileImageVersion property class Account { @Published var profileImageVersion: String? init(){ self.profileImageVersion = "" } } I'm trying to subscribe to the published inherit profileImageVersion

问题 I’m using Xcode 11.4 and iOS 13.4. I have set navigation bar title custom font using UINavigatinBar.appearance() And it works correctly but on iOS 13+ when i try to push to another VC and then comeback to the parent VC, the parent VC title font suddenly has been set to default font and after a second it changes back to the custom font. Below is a gif of the problem: nav bar font problem 回答1: Here you go, manage it in viewDidAppear: let lblTitle = UILabel() let titleAttribute:

问题 I’m using Xcode 11.4 and iOS 13.4. I have set navigation bar title custom font using UINavigatinBar.appearance() And it works correctly but on iOS 13+ when i try to push to another VC and then comeback to the parent VC, the parent VC title font suddenly has been set to default font and after a second it changes back to the custom font. Below is a gif of the problem: nav bar font problem 回答1: Here you go, manage it in viewDidAppear: let lblTitle = UILabel() let titleAttribute:

问题 I do not know why but my code crashes on this $searchTerm publisher. I have many such publishers in my code and everything else works ok. It only does not work in this new Xcode version and works in previous version. If I commented this line and replace it with _searchTerm.projectedValue it starts working as usuall! _searchTerm.projectedValue //$searchTerm .debounce(for: .milliseconds(350), scheduler: DispatchQueue.global()) .flatMap { term in self.search(by: term) } .print("searching")

问题 I do not know why but my code crashes on this $searchTerm publisher. I have many such publishers in my code and everything else works ok. It only does not work in this new Xcode version and works in previous version. If I commented this line and replace it with _searchTerm.projectedValue it starts working as usuall! _searchTerm.projectedValue //$searchTerm .debounce(for: .milliseconds(350), scheduler: DispatchQueue.global()) .flatMap { term in self.search(by: term) } .print("searching")