I have a problem with the method [[UIDevice currentDevice] systemVersion]. We have a report with devices using the app, and sometimes we get a string like "iPhone OS 6.1.3".
I don't know if there is another property for getting just the number (6.1.3) or if I have to implement a method to remove the first part.
Also I don't know exactly how many type of strings can I receive from several devices.
Thanks in advance for your help, Regards
just do a regular expression to grab solely the number.
some simple expression like \\b[0-9].[0-9](.[0-9])?\\b
or something like that.
This can be applied through an NSRegularExpression
.
Something like this
NSError *error;
NSRegularExpression *expression = [NSRegularExpression regularExpressionWithPattern:@"\b[0-9].[0-9](.[0-9])?\b" options:NSRegularExpressionCaseInsensitive error:&error];
NSString *version = [[expression matchesInString:[[UIDevice currentDevice] systemVersion]] objectAtIndex:0];
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.