Invalidating a nstimer

27-Nov-2017 23:16

Timers can also repeat and therefore have an associated interval to define how frequently they should fire.You may use one to fire every 5 seconds to handle polling of a resource, for example.That scheduling is done by object that we can use to control the timer.In our simple interval for watch app, we will add a timer that signals a change between run and walk every minute. The easier of the two is set the timer for one minute, and then trigger the event. If so, we use the invalidate method to shut if off, which also clear memory of the timer. // import Watch Kit import Foundation class Interface Controller: WKInterface Controller //MARK: - Life Cycle override func awake With Context(context: Any Object?In this lesson, we’ll let the watch tell us when to change intervals.

Our current code will need this when we switch manually from run/walk. Add this to your code: // // Interface Controller.swift // Swift Watch Buttons Watch Kit Extension // // Created by Steven Lipton on 4/14/15. There is also a secret many people do not get about Apple’s corporate address. In Watch Kit, There are no properties in the controls — you do everything with a method.This is especially annoying with the timer control you can add to the storyboard. And if you want timer to stop after one instance then make repeat “false”. Now we have to define “counter” function as follows After every 1 second the value of count is increased by 1. Set the values as follows and save it on your desktop. This code will be triggered every 1 second & it will trigger “counter” function. If you want to trigger the code every 10 seconds then replace 1 by 10.

Our current code will need this when we switch manually from run/walk. Add this to your code: // // Interface Controller.swift // Swift Watch Buttons Watch Kit Extension // // Created by Steven Lipton on 4/14/15.

There is also a secret many people do not get about Apple’s corporate address. In Watch Kit, There are no properties in the controls — you do everything with a method.

This is especially annoying with the timer control you can add to the storyboard.

And if you want timer to stop after one instance then make repeat “false”. Now we have to define “counter” function as follows After every 1 second the value of count is increased by 1.

Set the values as follows and save it on your desktop. This code will be triggered every 1 second & it will trigger “counter” function. If you want to trigger the code every 10 seconds then replace 1 by 10.

You must send this message from the thread on which the timer was installed.