3 Answers

• Hi Julien

  If you are purely asking about the javascript logic you would use, what about something like this?

  In your start button event listener:

  var startTime = (new Date).getTime();
  

  Then attached to a stop button:

  var duration = (new Date).getTime() - startTime;
  

  If this isn't quite what you were asking, let me know.

  Hal

• Hi julian …

  Take a peek at timers here under notes section…

• I am just starting with Appcelerator so I am not really sure about how to go about referencing variables. Can you reference them if they are set in a function. When I try to do this the Console message is "Can't find variable: startTime"; How do you use a variable in a function that is set in another function.

  Here are my two event listeners for the start and stop button:
  //add start event listener
  startButton.addEventListener('click', function(e){
  var startTime = (new Date).getSeconds();
  showLabel.text = startTime;
  });

  //add stop event listener
  stopButton.addEventListener('click', function(e){
  var endTime = (new Date).getSeconds() - startTime;
  showLabel.text = endTime;
  });

  Thanks in advance.