Tag Archives: UIDevice

How to check which iOS version your device is running

We can check the UIDevice’s property systemVersion for this. Here’s a quick snippet that checks this, and conveniently checks the first number in the returned value. This should work until iOS 9…

I’ve created a demo project for this code on GitHub:

https://github.com/versluis/iOS-Checkr

Inspired by this thread:

http://stackoverflow.com/questions/12561599/how-to-check-ios-version-is-ios-6

How to check the battery level of your iOS device?

We can use the batteryLevel property of the UIDevice class for this. It will return a float:

If you’d like to print this in a UILabel you’ll have to convert it into a String Object like so:

For this to work battery monitoring needs to be enabled, perhaps in the viewDidLoad method. Otherwise the returned value will be -1.0: