A few hours ago my app could be loaded , built and run without a problem. Now, after opening the app again with Xcode I get the message Command CodeSign failed with a nonzero exit code The app cannot be built. I don't know how to solve this problem. Please, can anyone help? Best regards Gerhard

My Objective-C app contains several hundreds lines of deprecated code like these: NSData *tmp = [NSKeyedArchiver archivedDataWithRootObject:singleTaskCleanUserArrayItem]; singleTaskUserArrayItem = [NSKeyedUnarchiver unarchiveObjectWithData:tmp]; New recommended methods: +archivedDataWithRootObject:requiringSecureCoding:error: +unarchivedObjectOfClass:fromData:error: How to implement the new methods in Objective-C? Forums and Documentation refer to Swift but not to Objective-C. Please give me a sample code for the two lines of code Best regards, Gerhard

I try to set up auto-renewable subscriptions. I learned I need to add in my app bundle a file like this: I wasn't successful. I don't know how to access my app's bundle and where it is located. I learned too, placing the file at an incorrect location could result in strange behaviour of my app or even in damage. So I am very careful Who can help? Best regards, Gerhard

Hello, I try to set up an in-App Purchase of my app. I have studied quite a lot of manuals and links. The app is written in Objective-C. But manuals and links refer to Swift code. I found no solution how to implement an in-App Purchase in Objective-C code. I am looking for a code example which I can adapt to and integrate into my app. Thank you for any help Best regards gefa

Hello, Having two app versions: basic and premium. Both are with equal content but with different allowances. Basic version can do less than the premium version. When upgrading from basic to premium is the basic version on the mac deleted or is it still there but only disabled by the App Store? In the last case there are two subscriptions on the mac: one enabled the other disabled. If only subscription duration or price is upgraded or downgraded there is no problem involved because both have the same allowances. Thanks for any help or advice

Hello, The docs at App Store Connect are full of advices for auto-renewable subscriptions. I want to set up an app as a non-consumable one with a free trial period (i.e. 1 month). I cannot find how to do this. I would be grateful for any hint or help.

Apple Developer Technical Support usually sent a feedback email like this: DTS Auto-Ack - Title of problem - Follow-up: xxxxxxxxxxxx (number) After my last submission (a week ago) I didn't receive such a feedback email. Instead I received an email sent by "Apple Support" like this: "Your request has been assigned the case number xxxxxxxxxxxxx. .Our team is working diligently to assist you with your request. We will respond to you in one to two business days. Please do not reply to this automated-email response." Said this, they want to respond in "one to two business day". Now I am waiting for a week. The title of the submission is missing. If one submits more than one request it is difficult to differentiate them according to the case number xxxxxxxxxxxxx. Has anyone an idea what is going on? Best regards Gerhard

Previously, print() logs in a separate app’s window of Xcode worked well. Now the following (an example) no longer works: print ("newRecordName is: (self.newRecordName)") print ("newPassword is: (self.newPassword)") print ("newUserName is: (self.newUsername)") print () print ("8. viewDidLoad()") print () The debug area is empty. I found no way to display the print output. Thanks for any help. Gerhard

Hello, MyApp asks a user to do a job on his iPhone. After user has finished this job, data user has produced are uploaded to iCloud. Thereafter MyApp should be quitted. I do the following: DispatchQueue.main.async { self.credentialView.removeFromSuperview() } exit(EXIT_SUCCESS) This seems to work. No Error message. Unfortunately, the data user produces cannot be queried on iCloud. Data seem to be inexistent. But, if I do the following: DispatchQueue.main.async { self.credentialView.removeFromSuperview() } // exit(EXIT_SUCCESS) Now user's data can be queried on iCloud. But MyApp does NOT quit. The superview is still present. MyApp should be quitted to prevent user from doing impermissible operations. How can I quit MyApp programmatically? Best regards Gerhard

I want to hide resp. unhide a view. I have found the following: var isHidden: Bool { get set } Unfortunately, I don't know how to implement it. I would be grateful for any help gefa

To make it simple (my array may contain more than 2 strings) myArray is:       (     "u011.08.20, 16:40:53 CEST00d 00h 00m 00su35",     "u011.08.20, 16:40:53 CEST00d 00h 00m 00su34" )  Sorted array should be:      (     "u011.08.20, 16:40:53 CEST00d 00h 00m 00su34",     "u011.08.20, 16:40:53 CEST00d 00h 00m 00su35" )  I looked at the NSArray doc. There are several proposals. Unfortunately, I don't know how to implement the declarations. I am grateful for any help

I want to send from my app programmatically emails. I don't know how to use or set up: @interface MFMailComposeViewController : UINavigationController macOS Catalina, Xcode 11.0

I want to overlay on the main storyboard a view with textfields for entering user name and password. Is there a standard approach to do this? Need I create a new window with a new view for the textfields? I would be very grateful for a hint where I can get an info about this topic or perhaps a hint how to do this. Thank you very much

Can anybody give me a hint deleting programmatically CKRedords in objective-c. I didn't find any help in the manuals.gefa

Can I retrieve programmatically my own email addresses on an iPhone or iPad?Thank you for any hint.