本文介绍了检查iOS 7或更早版本的最佳方法?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要根据我正在运行的iOS版本重新配置一些UI,所以我需要一种检查iOS版本的好方法。暂时我这样做:
I need to reconfigure some UI based on the iOS version I am running against, so I need a good way of checking the iOS version. For the time being I am doing this:
if ([[[UIDevice currentDevice] systemVersion] isEqualToString: @"7.0"]) {
//do stuff
}
我不想硬编码这些字符串比较并根据它做出决定。有没有更好的方法呢?
I'd prefer not to hard code these string comparisons and make decisions based on that. Are there any better ways of doing this?
推荐答案
我总是将这些保存在我的Constants.h文件中:
I always keep those in my Constants.h file:
#define IS_IPHONE5 (([[UIScreen mainScreen] bounds].size.height-568)?NO:YES)
#define IS_OS_5_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 5.0)
#define IS_OS_6_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 6.0)
#define IS_OS_7_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
#define IS_OS_9_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9.0)
虽然我总是喜欢上面的宏,但是为了完成接受的答案,这是苹果批准的方式:
Although I'll always prefer the above macros, for the completion of the accepted answer, here is the apple approved way:
if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
// do stuff for iOS 7 and newer
}
else {
// do stuff for older versions than iOS 7
}
这篇关于检查iOS 7或更早版本的最佳方法?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!