- July 11, 2025
- Mins Read
SwiftyTimer allows you to instantly schedule delays and repeating timers using convenient closure syntax. It’s time to get rid of Objective-C cruft.
Read Swifty APIs: NSTimer for more information about this project.
Usage
You can easily schedule repeating and non-repeating timers (repeats and delays) using Timer.every and Timer.after:
Timer.every(0.7.seconds) {
statusItem.blink()
}
Timer.after(1.minute) {
println(“Are you still here?”)
}
You can specify time intervals with these intuitive helpers:
100.ms
1.second
2.5.seconds
5.seconds
10.minutes
1.hour
2.days
You can pass method references instead of closures:
Timer.every(30.seconds, align)
If you want to make a timer object without scheduling, use new(after:) and new(every:):
let timer = Timer.new(every: 1.second) {
println(self.status)
}
(This should be defined as an initializer, but a bug in Foundation prevents this)
Call start() to schedule timers created using new. You can optionally pass the run loop and run loop modes:
timer.start()
timer.start(modes: .defaultRunLoopMode, .eventTrackingRunLoopMode)
If you want to invalidate a repeating timer on some condition, you can take a Timer argument in the closure you pass in:
Timer.every(5.seconds) { (timer: Timer) in
// do something
if finished {
timer.invalidate()
}
}
Installation
Note: If you’re running Swift 2, use SwiftyTimer v1.4.1
If you’re using CocoaPods, just add this line to your Podfile:
pod ‘SwiftyTimer’
Install by running this command in your terminal:
pod install
Then import the library in all files where you use it:
import SwiftyTimer
Simply copy Sources/SwiftyTimer.swift to your Xcode project.
If you like SwiftyTimer, check out SwiftyUserDefaults, which applies the same swifty approach to NSUserDefaults.
You might also be interested in my blog posts which explain the design process behind those libraries:
If you have comments, complaints or ideas for improvements, feel free to open an issue or a pull request.
GitHub
#ios #swift #timer
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