Home/ Questions/Q 6771789
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T15:28:26+00:00

Hi i am working on iOS SDK5 with xcode 4.2 and i want to

  • 0

Hi i am working on iOS SDK5 with xcode 4.2 and i want to prepare a build which should be compatible with iOS 4.0 to 5.0 or at least 4.3 and 5.0

I have set the base sdk to 5.0 and deployment target to 4.0 but when i run the app in the iPhone 4 simulator my application crashes basically due to the code written below

[testNavigationBar setBackgroundImage:[UIImage imageNamed:@"facebook-navbar.png"] forBarMetrics:UIBarMetricsDefault];

but the above code runs fine when i switch the iPhone simulator from 4 to 5 also i have tried setBackgroundColor but its not working so kindly help me on this.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    That’s because -setBackgroundImage: was introduced in iOS 5, and Apple don’t (usually) back port new API to older platforms as a rule. Anyway, you have two options:

    if ([testNavigationBar respondsToSelector:@selector(setBackgroundImage:)]) {
  // do what you're currently trying
}
else {
  //find a compatible way to do it
}

    or:

    //find a compatible way to do it
    • 0