iOS???ж??豸???汾

??????iOS?????У???????????????????????????????汾???????API ????????????????????????????汾????????????豸??汾???в???????????汾?п?????????Щ?1????
??????????UITabBarItem????????????????????????????
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 5.0) {
// iOS 5 code
for(UITabBarItem *tabBarItem in self.tabBar.items)
{
[tabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIFont systemFontOfSize:14.0]?? UITextAttributeFont?? nil]
forState:UIControlStateNormal];
}
}
else {
// iOS 4.x code
}