How can I check the bundle version of our application programmatically? [duplicate]

This question already has answers here: 开发者_JAVA百科 How to read the Bundle version from PList? (3 answers) Closed 9 years ago.

I have made an application and I have installed it on my iphone, but I want to check my application bundle version programatically. How can that be done?

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

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Here are some macros:

#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)