xcode

问题 I just know from this github project that Swift has +++ and <<< "operators". It's hard for me to search for this on google because +++ and <<< maybe some kind of special characters and not showing up on search result at all. It's not even showing up on questions that may already have your answer section of Stack Overflow when I wrote the question title. Can you explain briefly what are these weird operators for, and maybe some articles link for further reading? 回答1: Those operators are not a

问题 I have the following code, for example: [cardRegistrationVC setCancelBlock:^{ [weakSelf.navigationController popViewControllerAnimated:YES]; }]; When I apply clang-format on it, it turns into: [cardRegistrationVC setCancelBlock:^{ [weakSelf.navigationController popViewControllerAnimated:YES]; }]; As you can see, code inside the block appears on the same line. But I should be always on a new line. How to set up clang-format correct? My following settings file: BasedOnStyle: LLVM

问题 This appears very simple, but I've been struggling for several days to get access to the Calendar on OSX. I have switched on the App Sandbox capability, and I've ticked the "Calendar" box in App Data. I have created very simple app with the following view controller class: import Cocoa import EventKit class ViewController: NSViewController { var eventControl = EKEventStore() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. } override var

问题 This appears very simple, but I've been struggling for several days to get access to the Calendar on OSX. I have switched on the App Sandbox capability, and I've ticked the "Calendar" box in App Data. I have created very simple app with the following view controller class: import Cocoa import EventKit class ViewController: NSViewController { var eventControl = EKEventStore() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. } override var

问题 This appears very simple, but I've been struggling for several days to get access to the Calendar on OSX. I have switched on the App Sandbox capability, and I've ticked the "Calendar" box in App Data. I have created very simple app with the following view controller class: import Cocoa import EventKit class ViewController: NSViewController { var eventControl = EKEventStore() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. } override var

问题 I build my app and I put a breakpoint in didRegisterForRemoteNotificationsWithDeviceToken but it's not triggered. It works fine on other versions of iOS. Is this a bug in iOS 13 or did I miss something new in iOS 13? I use Xcode Beta 6 and iOS 13 beta 8. 回答1: The aforesaid problem could also be resolved by reconnecting wifi or switching between wifi and cellular data. Moreover, following changes in iOS 13 affected push notification implementation. Prior to iOS 13 many of us used to do

问题 When I integrate a local package in my Xcode project everything is fine initially but when i switch branches and want to run the app Xcode gives me the compile error Missing package product <package name> . When I quit Xcode and re-open it everything is fine again. Any idea what this can be? An Xcode bug? We also integrate external packages via Swift Package Manager which works perfectly fine. No issues there. The issue is also well described in a post by Jesse Squires. 回答1: For me, I needed

问题 I wanted to add GIF Background to my landing screen with swift, so I found this code online but when I try to use it on XCODE 7 with Swift 2.0 import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() var filePath = NSBundle.mainBundle().pathForResource("videoName", ofType: "gif") var gif = NSData(contentsOfFile: filePath!) var webViewBG = UIWebView(frame: self.view.frame) webViewBG.loadData(gif, MIMEType: "image/gif", textEncodingName: nil,

问题 I am trying to create an arrow that animates together. But, there are two problems: 1.The lines are not animating, the whole arrow is just appearing on screen 2.The arrow is filled in black, not just the outlines (which I am aiming for) let shapeLayer = CAShapeLayer() let bezierPath = UIBezierPath() //set up lines bezierPath.move(to: CGPoint(x: 50.5, y: 158.5)) bezierPath.addLine(to: CGPoint(x: 221.5, y: 158.5)) bezierPath.addLine(to: CGPoint(x: 171.5, y: 108.5)) bezierPath.addLine(to:

问题 I have generated an IPA file unsigned with xcodebuild utility and now my customer want to sign it. It is possible to sign it with an existing provisioning file generated with a developer account? Another question, it is possible to use a command line related to xcode to do this? 回答1: An IPA is simply a .zip archive. Here is a example script to get the idea IPA=$1 PROVISION="/path/to/nameOfProfile.mobileprovision" CERTIFICATE="iPhone Developer: nameOfCertificate (2472ZKDHVF2A)" # must exist in