Question

this may be a little bit of a dump question but how do you handle backwards compatibility facing all the depreciations in iOS6? I’m currently unsure how to handle them myself.

Examples:

UITextAlignment is deprecated, but using NSTextAlignment will not work on devices using iOS 5 and prior

dismissModalViewControllerAnimated: is deprecated as well in favor of dismissViewControllerAnimated: completion:

So how could/should one maintain compatibility to older iOS versions? Are there ways to test older versions in XCode 4.5 simulator?

Thanks for any advice!

Answer 1

To get all deprecated methods in your code just set the deployment target of you application to iOS 6.0, and compile your code, then you will get a warning for each deprecated method.

In order to solve the deprecation use one of the following:

1-

float systemVersion = [[[UIDevice currentDevice]systemVersion]floatValue];


    if(systemVersion < 6.0)
    {
        calendarArray = [self.eventStore calendars];
    }
    else
    {
        calendarArray = [self.eventStore calendarsForEntityType:EKEntityTypeEvent];
    }

2- USer respondToSelecter method to detect if the object respond to such selector.