Simple Timer

README.md

Introduction

How to use the NSTimer in Swift.

Note

1. parameter repeats: true -> repeat, false -> no repeat.
2. We don't have to call 'timer.fire()' before NSTimer of the method of scheduledTimerWithTimeInterval. Those will fire automatically.

timer.swift

class SwiftTimer {
    var timer: Timer!
    let interval: Double = 5
    
    init() {
    }
    
    func startTimer() {
        // When declare a timer then the timer will start counting directly.
        self.timer = Timer.scheduledTimerWithTimeInterval(interval, target: self, selector: #selector(action), userInfo: nil, repeats: false)
    }
    
    func stopTimer() {
        // Stop the timer counting and cancel it.
        self.timer?.invalidate()
        self.timer = nil
    }
    
    func action() {
        // Do something you want.
    }
}