IOS獲取當前版本號 Bundle ID等信息的方法

1：獲取bundle Id信息：[[NSBundle mainBundle]bundleIdentifier]；

2：獲取版本號：[[[NSBundle mainBundle]infoDictionary] objectForKey:@"CFBundleShortVersionString"];

3：獲取build號：[[[NSBundle mainBundle]infoDictionary] objectForKey:@"CFBundleVersion"];

4：獲取App顯示名：[[[NSBundle mainBundle]infoDictionary] objectForKey:@"CFBundleDisplayName"];

其實 [[NSBundle mainBundle]infoDictionary] 獲得的是一個字典，裡邊放著Info.plist文件中的各種信息，根據不同的鍵去即可，如：

 CFBundleDevelopmentRegion 

  CFBundleDisplayName 

  CFBundleExecutable

  CFBundleExecutablePath

  CFBundleIdentifier

  CFBundleInfoDictionaryVersion = "6.0";

  CFBundleInfoPlistURL

  CFBundleName

  CFBundlePackageType 

  CFBundleShortVersionString

  CFBundleSignature 

 CFBundleSupportedPlatforms

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