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https://issues.apache.org/jira/browse/CB-11291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15288869#comment-15288869
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Zeph Davies commented on CB-11291:
----------------------------------
This may help you:
http://jsfiddle.net/r5szsao2/4/
> Update capped to 1Hz when in background
> ---------------------------------------
>
> Key: CB-11291
> URL: https://issues.apache.org/jira/browse/CB-11291
> Project: Apache Cordova
> Issue Type: Bug
> Components: Android, Plugin Device Motion
> Reporter: Zeph Davies
>
> Due to the way Android's WebBrowser handles setInterval, when the "tab" is in
> the background (ie when used in conjunction with backgroundMode plugin),
> setInterval (used to send the latest value to the application) is capped to
> 1Hz (once per second).
> This makes the plugin update at a completely different interval to that set
> by the application.
> One solution is to use a WebWorker to hold the setInterval timer, as it is
> not limited by the browser.
> The tricky bit is loading the script into the WebWorker, as it requires the
> "Content-Security-Policy" to allow local files or blobs.
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