Pick up the Android version in the browser by Javascript

Question

I\'m building a web app and wanting to disable transitions effects on Android devices under version 3.0.

Is there anyway to pick up the Android version number by Ja

Answer 1

It's better to check first if device is android or not as Windows mobile can have Android in its user agent.

Example: Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; ; ) AppleWebKit/ (KHTML, like Gecko) Chrome/ Mobile Safari/ Edge/.

Here is way to check it Detecting iOS / Android Operating system

Answer 2

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.

Answer 3

This code checks the full version of Android from the useragent.

var test = LowerThanAndroidVersion('4.4');
if (test) {
    alert('lower than android 4.4')
} else if (test == undefined) {
    alert('no android')
} else {
    alert('android 4.4 or higher');
}    

function LowerThanAndroidVersion(testversion) {
    //var useragent = 'Mozilla/5.0 (Linux; U; Android 4.3.1; en-gb; GT-I9300 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30';
    var useragent = navigator.userAgent;
    var androidpoint = useragent.indexOf('Android');
    if (androidpoint >= 0) {
        var rest = useragent.substring(androidpoint + 8, useragent.length);
        var version = rest.substring(0, rest.indexOf(';'));
        return (version < testversion) ? true : false;
    }
}