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Is it possible, in JavaScript, to detect when the screen is turned off in the Android & iOS browsers
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/ 11 Years ago, thu, april 11, 2013, 12:00:00
I was tracking down some ridiculously high load times that my app's javascript reported, and found that Android (and iOS) pause some JavaScript execution when the window is in the background or the display is off.
On Android, I found that I could use the window.onfocus
and onblur
events to detect when the app was switching to the background (and js execution would soon be paused, at least for new scripts), but I can't find a way to detect when the screen is turned on or off. Is this possible?
(On Safari, I had similar results except that onfocus
and onblur
didn't fire reliably.)
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