Get Android OS version from user-agent

Question

I\'ve been trying to find a parser or regex that will give me the Android OS version from a user agent string.

E.g.

Mozilla/5.0 (Linux; U; Android 2.         


        

Answer 1

Regex should work, something along the untested lines of

Android ([0-9]\.[0-9](\.[0-9])?);

And then use whatever regex function you use to get that part inside the parens.

Answer 2

If you want to use it with User-Agent it might be safe but else you shouldn't use it.

Android ((\d+|\.)+[^,;]+)

It catches everything after Android it works with,

1.6 2.4.4 10.12.5

To test with Live Regex: https://www.phpliveregex.com/p/uPw

Answer 3

May I present an answer that others can easily copy and paste.

navigator.userAgent.match(/Android [\d+\.]{3,5}/)[0].replace('Android ','')

Answer 4

Motorola's player user agents can have the following:

Linux;Android ; Release/4.1.2

So, I've had to start using the the following:

[a|A]ndroid[^\d]*([\d[_|.]]+\d)

Answer 5

This regular expression is a bit more "future proof" than mathepic's answer:

Android (\d+(?:\.\d+)*);

It allows for multiple digits in each place as well as additional periods in the version number. Android's been out 3 years and we're on 3.0. Eventually we'll get to 10.0.0.

This will catch all of the following:

• 1.6 (real)
• 2.3.4 (real)
• 9
• 12.34.56 (fake. but one day...)
• 3.4.5.6 and 4.5.6.7.8.9 (fake... but just in case)

This could be written a little more strictly as:

Android (\d+(?:\.\d+){0,2});

This sticks more closely to the schema we've already seen used, but could potentially miss some versions of they decide to add an additional .1 at the end of a version. It also matches for the future 10.0.0 version.