Accessing Basic Device Information
The UIDevice class exposes key device-specific properties, including the iPhone, iPad, or iPod touch model being used, the device name, and the OS name and version. It’s a one-stop solution for pulling out certain system details. Each method is an instance method, which is called using the UIDevice singleton, via [UIDevice currentDevice].
The system information you can retrieve from UIDevice includes these items:
systemName—This property returns the name of the operating system currently in use. For current generations of iOS devices, there is only one OS that runs on the platform: iPhone OS. Apple has not yet ...
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