How to show a view controller only one time after update?

Asked Apr 12 '18 at 10:34

Active Apr 12 '18 at 10:34

Viewed 30 times

I would like to know how to show a simple view controller after the user update the application with App Store ?

For example:

The current version is 3.0.3 and there an update in the store (3.1). When the user open the app after update I would like to show (only for the first time) a view controller.

I've already code this:

     NSString *appVersion = NSBundle.mainBundle.infoDictionary[@"CFBundleShortVersionString"];
 if (appVersion != nil) {
      NSString *currentVersion = [NSUserDefaults.standardUserDefaults stringForKey:@"CurrentVersion"];
      if (![currentVersion isEqualToString:appVersion] && ![currentVersion isEqual:@"3.0"]) {
           [NSUserDefaults.standardUserDefaults setObject:appVersion forKey:@"CurrentVersion"];
           [self performSegueWithIdentifier:@"showwelcome" sender:nil];
      }
 }

asked Apr 12 '18 at 10:34

pilou

And what is your main question? this code works... do you want to improve it? or? – Jabson Apr 12 '18 at 11:13
Yes I would like to improve it. This code work but maybe there is a better solution ! – pilou Apr 12 '18 at 11:36
It would be better to use `NSComparisonResult` https://stackoverflow.com/questions/1978456/compare-version-numbers-in-objective-c – markedwardmurray Apr 13 '18 at 07:29

How to show a view controller only one time after update?

0 Answers0