Pick up the Android version in the browser by Javascript

Solution 1:

function getAndroidVersion(ua) {
    ua = (ua || navigator.userAgent).toLowerCase(); 
    var match = ua.match(/android\s([0-9\.]*)/i);
    return match ? match[1] : undefined;
};

getAndroidVersion(); //"4.2.1"
parseInt(getAndroidVersion(), 10); //4
parseFloat(getAndroidVersion()); //4.2

Solution 2:

Use below code to get 2 digit version of Android

var ua = navigator.userAgent;
if( ua.indexOf("Android") >= 0 )
{
  var androidversion = parseFloat(ua.slice(ua.indexOf("Android")+8)); 
  if (androidversion < 2.3)
  {
      // do whatever
  }
}

For example

Mozilla/5.0 (Linux; U; Android 2.2.1; fr-ch; A43 Build/FROYO) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1

will return Android Version = 2.2

Solution 3:

I can't comment because I don't have enough rep... Just wanted to add that I had to change neiker's code to

var match = ua.match(/Android\s([0-9\.]*)/i);

to make it case insensitive because the Galaxy S3 was returning "android" instead of Android in its user agent

Solution 4:

You can look at the user agent string - window.navigator.userAgent described here: https://developer.mozilla.org/en/DOM/window.navigator.userAgent

If what you're really trying to detect is whether you have a version of the browser that supports a particular feature, then it's nearly always better to use feature detection instead of browser version detection. modernizr is a huge base of code for feature detection that you can either use as is or borrow one particular piece from or just learn how the general technique works.

When I Google, I see user agent strings like this for Android:

Mozilla/5.0 (Linux; U; Android 2.2.1; fr-ch; A43 Build/FROYO) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1

A regex of /Android\s+([\d\.]+)/ on window.navigator.userAgent will pick up the Android version number.

Solution 5:

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 regex:

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