我可以在Android的chrome上获得绝对的设备方向吗？

Question

When I experimented with device orientation a year ago, it was behaving differently on ios safari and android chrome. Chrome was showing absolute values, relative North, while safari was showing relative values + webkitCompassHeading which is absolute.

But now it seems that chrome has changed, it's not showing absolute anymore, only relative. Meaning that alpha is relative to the first measure on the page, not the north pole.

Is it now impossible to read the compass heading in Chrome?

Or is there a way to read the compass?

For instance: can I somehow change how device orientation behaves do that it returns absolute:true?

Answer 1

我发现在实验标记的后面隐藏着绝对的deviceorientation： https ：//codereview.chromium.org/1416123002/

Answer 2

This page from Google answers the question: https://developers.google.com/web/updates/2016/03/device-orientation-changes

ie, that the API has indeed changed from absolute to relative. It discusses how to still access absolute values, as well as including some thoughts about cross browser / device compatibility.