ios - Is there any way to check a app was installed or updated?

Question

I have already ship one version of my application. for the further versions i need do some validation for check whether it is a fresh installation or an update(I couldn't use NSUserDefaults or Document Directory because my first version already shipped).

Answer 1

You can check the creation date of your documents folder. If it's prior to your 1.1 version release than it's an update.

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSDictionary* fileAttribs = [[NSFileManager defaultManager] attributesOfItemAtPath:documentsDirectory error:nil];
NSDate *result = [fileAttribs objectForKey:NSFileCreationDate];
NSLog(@"%@",result);