identifierForVendor和iOS6 [英] identifierForVendor and iOS6

问题描述

identifierForVendor 需要iOS6，所以如果我的应用目前支持iOS4，因此我无法使用它，因为我的更新始终符合我应用的前一分钟。要求？

The identifierForVendor require iOS6, so if my app currently supporting iOS4 and therefore I can't use it since my updates should always meet my app's previous min. requirement?

推荐答案

你可以使用这个：

NSString *udid;

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"6.0"))
    udid = [UIDevice currentDevice].identifierForVendor.UUIDString;
else
    udid = [UIDevice currentDevice].uniqueIdentifier;

预处理器代码：

#define SYSTEM_VERSION_EQUAL_TO(v)                  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v)              ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v)                 ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

这篇关于identifierForVendor和iOS6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IT屋！