Android 8.x - setTimeOut / setInterval only works when the device plugged.

[Brainiac-88]

Hi,
As you can see in the title on Android 8.x I have some problems. The functions above in the background only works when the device is plugged and my timer counters works fine. When the device is not charging it doesn't work expect when I unlock the screen. Any Idea / Solution / Setting ?
Thanks.

[wspresto]

There are two threads of JavaScript execution. WebView and WebCore. WebView is where settimeouts or setinervals are "queued", whereas webcore is where JS code relating to the plugins run. It is the WebCore thread which stays alive, while the WebView thread is "dozed". Therefore, you cannot assume setTimeouts or setIntervals or even XHR's will execute while in the background. Remember that these constructs are "deferred" to the browser(WebView), and that you must write logic to handle situations where you need to work in the background.

[n1705771]

same issue