アプリのバージョン番号を取得する（メモ）

アプリのバージョン番号を取得するメモ。

バンドル内に配置される *.plist から取得すればいい。

こんな感じ。

[[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString*)kCFBundleVersionKey];

代表的なキーは CFBundle.h で定義されている。以下、引用：

/* ===================== Standard Info.plist keys ===================== */
CF_EXPORT
const CFStringRef kCFBundleInfoDictionaryVersionKey;
    /* The version of the Info.plist format */
CF_EXPORT
const CFStringRef kCFBundleExecutableKey;
    /* The name of the executable in this bundle, if any */
CF_EXPORT
const CFStringRef kCFBundleIdentifierKey;
    /* The bundle identifier (for CFBundleGetBundleWithIdentifier()) */
CF_EXPORT
const CFStringRef kCFBundleVersionKey;
    /* The version number of the bundle.  For Mac OS 9 style version numbers (for example "2.5.3d5"), */
    /* clients can use CFBundleGetVersionNumber() instead of accessing this key directly since that */
    /* function will properly convert the version string into its compact integer representation. */
CF_EXPORT
const CFStringRef kCFBundleDevelopmentRegionKey;
    /* The name of the development language of the bundle. */
CF_EXPORT
const CFStringRef kCFBundleNameKey;
    /* The human-readable name of the bundle.  This key is often found in the InfoPlist.strings since it is usually localized. */
CF_EXPORT
const CFStringRef kCFBundleLocalizationsKey CF_AVAILABLE(10_2, 2_0);
    /* Allows an unbundled application that handles localization itself to specify which localizations it has available. */