Possible values for [[UIDevice currentDevice] systemName];

Question

What are the possible values of [[UIDevice currentDevice] systemName]; ? In the docs from Apple, it doesn't give any examples of what could result, but all I can get from it is iPhone OS , even on the simulator. Are there any other possibilities, and if not, why does this property even exist?

Answer 1

It's the operating system's name as the docs say. iOS was initially called "iPhone OS" (before iPad) but I think they didn't changed the systemName for compatibility reasons.

In the future, they could implement [UIDevice systemName] on (Mac) OS X and on that platform it would probably return Mac OS X or OS X .

The current use for this method is quite limited but you never know what ((partly) compatible) operating systems Apple or someone else may produce in the future...

Answer 2

for iPhone, the value for Operating System returned by Apple has been “iPhone OS”. In certain versions of iOS 9 and for apps published post-Xcode 8 running iOS 10, Apple has replaced the value for “iPhone OS” with “iOS.

Answer 3

在 ios 版本 15 更新后，ipad os 已将“iOS”的值替换为“iPadOS”