How to Wait in Objective-C and Swift

Question

I want to change my UILabel\'s text after 2 seconds.

I tried setting my UILabel\'s text to \"A text\", and use sleep(2) a

Answer 1

You can use

[self performSelector:@selector(changeText:) withObject:text afterDelay:2.0];

or if you want to display it periodically, check the NSTimer class.