Is there a setTimeout (like) in objective-c

Is there a similar setTimeout function in objective-c like in javascript? I dont want a sleep function.

I want to fire a "messa开发者_JAVA百科ge" after a period of time gone by but no locking up the device.

Try NSTimer.

As Calvin points you can use NSTimer class.

As an alternative you can use performSelector:withObject:afterDelay: method to schedule method call after specific delay (note that it is not guaranteed that delay will be exactly you specified - it just will be not less than that value)

See NSObject's performSelector:withObject:afterDelay:. You can also use NSTimer — it's particularly useful for mimicking setInterval(). And to execute arbitrary code instead of just sending a message, see Grand Central Dispatch's dispatch_after.