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Samuel Durkin
48,402 PointsTriggering JavaScript even when phone goes to sleep
Hello everybody,
This is quite a general question, but I'm currently building a Rails application that relies heavily on timer functionality (the excellent http://keith-wood.name/countdown.html for anybody wondering). It's currently working really nicely, with the exception of if you navigate to a different tab in your web browser or your phone simply goes to sleep.
I'm not really looking for code examples, just wondering whether this something you can reasonably get around. Google's inbuilt timer (where you simply type "timer 20 seconds" into their search box) works wonderfully, but I'm not sure what technology they're using.
Thanks for any help!
Samuel
2 Answers
Hunter Cassidy
5,674 PointsHey Samuel,
Here is a stack overflow link that might be useful: http://stackoverflow.com/questions/5927284/how-can-i-make-setinterval-also-work-when-a-tab-is-inactive-in-chrome
It talks about using elapsed time and goes on to mention web workers.
The timer on Google seems to use links to start and stop the timer with custom 'jsaction' html attributes.
Samuel Durkin
48,402 PointsThat's an amazingly helpful answer Hunter, in the meantime I'd set up a temporary setTimeout solution which is not nearly as accurate as I'd like for the website.
Am currently travelling for the next week, but looking forward to trying this out when I get back.