如何以编程方式检查应用程序的捆绑版本？

Question

我已经创建了一个应用程序并且已经在我的iphone上安装了它，但是我想以编程方式检查我的应用程序包版本。怎么办？

Answer 1

NSString *versionString = [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*)kCFBundleVersionKey];

Answer 2

以下是一些宏：

#define BUNDLE_VERSION_EQUAL_TO(v)                  ([[[NSBundle mainBundle]     objectForInfoDictionaryKey:(NSString*) kCFBundleVersionKey] compare:v  options:NSNumericSearch] == NSOrderedSame)
#define BUNDLE_VERSION_GREATER_THAN(v)              ([[[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*) kCFBundleVersionKey] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define BUNDLE_VERSION_GREATER_THAN_OR_EQUAL_TO(v)  ([[[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*) kCFBundleVersionKey] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define BUNDLE_VERSION_LESS_THAN(v)                 ([[[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*) kCFBundleVersionKey]  compare:v options:NSNumericSearch] == NSOrderedAscending)
#define BUNDLE_VERSION_LESS_THAN_OR_EQUAL_TO(v)     ([[[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*) kCFBundleVersionKey] compare:v options:NSNumericSearch] != NSOrderedDescending)