
#Java timer utility pause resum how to#
I just want to be able to pause and play the timer!Ĭan anyone offer me advice in how to go about this? Thanks in advance. The run method is implicitly invoked when a timer. In order to define a TimerTask object, this class needs to be implemented and the run method need to be overridden. TimerTask class defines a task that can be scheduled to run for just once or for repeated number of time. I've tried using synchronization across the FXMLDocumentController class and the other three threads to no avail in multiple different ways (admittedly, I have almost no experience coding for concurrency). TimerTask is an abstract class defined in java.util package. I want the user to be able to pause and resume the timer with this same button. Right now the only functionality FXMLDocumentController method has is: user clicks play (start) button -> timer begins counting down. When the user clicks the play (start) button, the click signals the FXMLDocumentController (the class that controls how the components in the UI are updated) method startTimer() to do work regarding the timer. The three threads ( minutesThread, secondsThread, progressBarUpdaterThread) I need to be able to pause and resume are regular. Each of these components are separate and running on separate threads concurrently to prevent the UI from freezing up. The timer is composed of two labels (one for minutes, one for seconds-each composed of a CountdownTimer() class object), and a progress bar (the timer looks like this). I'm using JavaFX SceneBuilder to do this. I'm creating a 20-minute countdown timer application.
