So the first part of the answer is how to do what the subject asks as this was how I initially interpreted it and a few people seemed to find helpful. The question was since clarified and I’ve extended the answer to address that. Setting a timer First you need to create a Timer (I’m … Read more
new java.util.Timer().schedule( new java.util.TimerTask() { @Override public void run() { // your code here } }, 5000 ); EDIT: javadoc says: After the last live reference to a Timer object goes away and all outstanding tasks have completed execution, the timer’s task execution thread terminates gracefully (and becomes subject to garbage collection). However, this can … Read more
You could use an anonymous function: var counter = 10; var myFunction = function(){ clearInterval(interval); counter *= 10; interval = setInterval(myFunction, counter); } var interval = setInterval(myFunction, counter); UPDATE: As suggested by A. Wolff, use setTimeout to avoid the need for clearInterval. var counter = 10; var myFunction = function() { counter *= 10; setTimeout(myFunction, … Read more
The usual WPF timer is the DispatcherTimer, which is not a control but used in code. It basically works the same way like the WinForms timer: System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer(); dispatcherTimer.Tick += dispatcherTimer_Tick; dispatcherTimer.Interval = new TimeSpan(0,0,1); dispatcherTimer.Start(); private void dispatcherTimer_Tick(object sender, EventArgs e) { // code goes here } More on the DispatcherTimer … Read more
As shown in the documentation for CountDownTimer: new CountDownTimer(30000, 1000) { public void onTick(long millisUntilFinished) { mTextField.setText(“seconds remaining: ” + millisUntilFinished / 1000); // logic to set the EditText could go here } public void onFinish() { mTextField.setText(“done!”); } }.start();
Indeed rather use ExecutorService instead of Timer, here’s an SSCCE: package com.stackoverflow.q2275443; import java.util.concurrent.Callable; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; public class Test { public static void main(String[] args) throws Exception { ExecutorService executor = Executors.newSingleThreadExecutor(); Future<String> future = executor.submit(new Task()); try { System.out.println(“Started..”); System.out.println(future.get(3, TimeUnit.SECONDS)); System.out.println(“Finished!”); } catch (TimeoutException e) … Read more
If you don’t care if the code within the timer may take longer than your interval, use setInterval(): setInterval(function, delay) That fires the function passed in as first parameter over and over. A better approach is, to use setTimeout along with a self-executing anonymous function: (function(){ // do some stuff setTimeout(arguments.callee, 60000); })(); that guarantees, … Read more
According to Java Concurrency in Practice: Timer can be sensitive to changes in the system clock, ScheduledThreadPoolExecutor isn’t. Timer has only one execution thread, so long-running task can delay other tasks. ScheduledThreadPoolExecutor can be configured with any number of threads. Furthermore, you have full control over created threads, if you want (by providing ThreadFactory). Runtime … Read more
I have two demos, one with jQuery and one without. Neither use date functions and are about as simple as it gets. Demo with vanilla JavaScript function startTimer(duration, display) { var timer = duration, minutes, seconds; setInterval(function () { minutes = parseInt(timer / 60, 10); seconds = parseInt(timer % 60, 10); minutes = minutes < … Read more
ok since this isn’t cleared up yet there are 3 simple ways to handle this. Below is an example showing all 3 and at the bottom is an example showing just the method I believe is preferable. Also remember to clean up your tasks in onPause, saving state if necessary. import java.util.Timer; import java.util.TimerTask; import … Read more