ios13

问题 I have an iOS app that is trying to read files from an external storage device without importing them into the App's sandbox. I have followed Apple's documentations outlined here to do this -- Providing Access to Directories I'm able to retrieve the selected directory ( which is on an external storage device connected via the Lightning port ) and enumerate the files inside the directory. However, when I try to do something with those files as per the recommended pattern, I get a failure and

问题 I have a standard List only with one Text and on the right side the arrow for navigation. But after the list is loading and appeared at Screen, the list addapt the cells I think they add padding at the left and at the right. But this is not looking good, so it is looking like the list lags! List { ForEach(0..<book.chapters) { index in NavigationLink(destination: ReadingView(book: self.book, chapter: index)){ Text("Kapitel \(index + 1)") } } } .navigationBarTitle(Text(book.long_name),

问题 I am trying using var body: some View { Text("This is large text. Is there a way that I can unwrap the large text as discussed").lineLimit(2) } FYI: I knew var body: some View { Text("This is large text. Is there a way that I can unwrap the large text as discussed").lineLimit(nil) } It will wrap the text to say n number of lines. 回答1: Call .lineLimit(3) on the Text element. (Technically, it can be called on any View , in which case it will limit the lines of all Text elements in that view.)

问题 I change title font and color like this: let titleAttributes = [NSAttributedStringKey.font: UIFont(name: "HelveticaNeue-Bold", size: 25)!, NSAttributedStringKey.foregroundColor: UIColor.purple] alert.setValue(titleString, forKey: "attributedTitle") Before iOS13 this worked fine both for preferredStyle .alert and .actionSheet. Now it only works for .alert and doesn't work for .actionSheet. Someone please any help? 回答1: iOS 13 now embeds the UIAlertController title in a UIVisualEffectView, and

问题 Ive make a mini app with just a button and a picker and the idea is to have a done button above the picker so once ive chosen a value i can press done and the picker will close. I am aware if you click the "click me" button it will open and if you click it again close the picker but im looking for a button that appears with the picker and disapears with the clicker when clicked. Almost like a toolbar above the picker with a done button @State var expand = false @State var list = ["value1",

问题 I'm developing VoIP based audio call in my application. I have a strange issue for which I couldn't find a solution. For iOS 13+ devices, sometimes incoming CallKit UI goes in Background. That means incoming CallKit UI doesn't show upfront, but I'm able to hear the call ringtone audio and vibration. When I double-tap on the Home button, I'm able to see my app with the IncomingCall UI in Recents. When I tap on it, it shows the CallKit UI and then I'm not able to move to other applications via

问题 I'm comparing two UIColor initialised using the new iOS 13 init(dynamicProvider:) https://developer.apple.com/documentation/uikit/uicolor/3238041-init but that's what I get runtime when I compare them in unit test with an XCTAssertEqual : XCTAssertEqual failed: ("Optional(<UIDynamicProviderColor: {...}; provider = <__NSMallocBlock__: {...}>>)") is not equal to ("Optional(<UIDynamicProviderColor: {...}; provider = <__NSMallocBlock__: {...}>>)") This is an example of how I create the color:

问题 I'm comparing two UIColor initialised using the new iOS 13 init(dynamicProvider:) https://developer.apple.com/documentation/uikit/uicolor/3238041-init but that's what I get runtime when I compare them in unit test with an XCTAssertEqual : XCTAssertEqual failed: ("Optional(<UIDynamicProviderColor: {...}; provider = <__NSMallocBlock__: {...}>>)") is not equal to ("Optional(<UIDynamicProviderColor: {...}; provider = <__NSMallocBlock__: {...}>>)") This is an example of how I create the color:

问题 So I'm implementing sign in with Apple, everything goes well on the simulator, I request email, fullName scopes, the authenticate UI shows, and I can get the data, as images shown below: But when testing on real device (iPadOS 13, iPad 2018), the UI didn't show (it does not asks for name and email on the UI), and I can't get the email, fullName from the response, and I can also confirm that the authorizedScopes are empty, I can only get the user identifier I believe this is a bug and will

问题 So I'm implementing sign in with Apple, everything goes well on the simulator, I request email, fullName scopes, the authenticate UI shows, and I can get the data, as images shown below: But when testing on real device (iPadOS 13, iPad 2018), the UI didn't show (it does not asks for name and email on the UI), and I can't get the email, fullName from the response, and I can also confirm that the authorizedScopes are empty, I can only get the user identifier I believe this is a bug and will