Android user agent get

User-Agent Strings

Published on Friday, February 28, 2014 • Updated on Tuesday, November 9, 2021

With Privacy Sandbox, an origin trial is in progress for reduced User-Agent strings, designed to remove sensitive information which may be used for fingerprinting.

A browser’s User-Agent string (UA) helps identify which browser is being used, what version, and on which operating system. When feature detection APIs are not available, use the UA to customize behavior or content to specific browser versions.

Like all other browsers, Chrome for Android sends this information in the User-Agent HTTP header every time it makes a request to any site. It’s also available in the client through JavaScript using the navigator.userAgent call.

# Chrome for Android

Chrome for Android reports its UA in the following formats, depending on whether the device is a phone or a tablet.

Phone UA:

Tablet UA:

Here’s an example of the Chrome user agent string on a Galaxy Nexus:

If you are parsing user agent strings using regular expressions, the following can be used to check against Chrome on Android phones and tablets:

• Phone pattern: ‘Android’ + ‘Chrome/[.0-9]* Mobile’
• Tablet pattern: ‘Android’ + ‘Chrome/[.0-9]* (?!Mobile)’

# Chrome for iOS

The UA in Chrome for iOS is the same as the Mobile Safari user agent, with CriOS/ instead of Version/ .

Here’s an example of the Chrome UA on iPhone:

For comparison, the Mobile Safari UA:

Up to Chrome 84, when the Request Desktop Site feature is enabled, the Desktop Safari UA is sent:

Starting from Chrome 85, when the Request Desktop Site feature is enabled, the UA is the same as the Desktop Safari UA with CriOS/ being added:

# WebView on Android

The Android 4.4 (KitKat) Chromium-based WebView adds Chrome/_version_ to the user agent string.

WebView UA in KitKat to Lollipop

If you’re attempting to differentiate between the WebView and Chrome for Android, you should look for the presence of the Version/_X.X_ string in the WebView user-agent string. Don’t rely on the specific Chrome version number (for example, 30.0.0.0) as the version numbers changes with each release.

WebView UA in Lollipop and Above

In the newer versions of WebView, you can differentiate the WebView by looking for the wv field as highlighted below.

With Privacy Sandbox, an origin trial is in progress for reduced User-Agent strings, designed to remove sensitive information which may be used for fingerprinting.

Last updated: Tuesday, November 9, 2021 Improve article

Источник

Get User-Agent using Android API

Kindly provide me the Android code to get the User-Agent from the Android mobile device like in J2me where we can get System information about the mobile device using the J2me API.

Also , is there any list of Rdf or useragent string/ xml for the different Android devices available in the market.

3 Answers 3

Just to make sure you are getting the correct string or you want to check what a browser’s user agent string is that works try this site. http://www.whatsmyuseragent.com/

Also the user-agent string is modifiable but doing so doesn’t change the browser itself. (Learned that the hard way 🙂

The User-Agent header is private to the Browser application. Also note that different browsers (there are quite a few on the market) will use different User-Agent strings. Also, I don’t know of any list of Android User-Agent strings.

If you’re just looking to test whether someone is using Android to browse your website, just check for «android» in the User-Agent string.

Not the answer you’re looking for? Browse other questions tagged android or ask your own question.

Related

Hot Network Questions

Subscribe to RSS

To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. rev 2021.12.3.40888

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.

Источник

Retrieve User-Agent programmatically

Is there a way to retrieve Browser’s user-agent without having a WebView in activity?

I know it is possible to get it via WebView :

But in my case I don’t have/need a webview object and I don’t want to create it just for retrieving user-agent string.

6 Answers 6

If you don’t have one you can try taking it like this

The doc for getUserAgentString() says

Return the WebView’s user-agent string.

So i don’t think you can get it unless you declare one. Some one correct me if i am wrong

There is a much simpler way if you are on Android 2.1 or above. Granted this isn’t the exact same User Agent string that a webview would return, but might serve you well enough for your purposes.

As an additional advantage to pulling from web view, you can use this from any thread (not just the UI thread).

There is a system property called http.agent, which can be used to retrieve the User-Agent string.

I used to use solution proposed by DeRagan. But it turned out that creating a single WebView instance starts a thread «WebViewCoreThread» which stays on the background until application is terminated by the system. Maybe it doesn’t consume too much resources but I don’t like it anyway. So I use slightly different method now, which tries to avoid WebViewCoreThread creation:

It creates WebSettings instance directly using package-visible constructor and if that is not available for some reason (e.g. due to API changes in future Android versions) — silently falls back to «WebView-like» solution.

UPDATE

As pointed by @Skywalker5446, starting from Android 4.2/API 17, there is a public static method to get default user agent value. I’ve updated my code to use that method on the supported platforms.

Источник

How to know a user-agent string for specific android devices?

The mission is to get some statistics on some of the devices at the web-server side. For that, I would like to know the user-agent string for default browsers on specific Android devices such as:

• HTC:
  • HTC Jetstream
  • HTC Flyer
  • HTC Evo View 4G

• NEXUS:
  • Nexus 7
  • Nexus 10

• SAMSUNG:
  • Galaxy Tab
  • Galaxy Tab 2
  • Galaxy Note

• MOTOROLA:
  • Motorola Xyboard 8″
  • Droid Xyboard
  • Motorola Xyboard 10″

Is there an easy way to know it? Is there a well-known list that maps device name to user-agent string? Also, if I should take a different approach — please advice.

6 Answers 6

In my opinion to count the Hit from various User Agent on base of Android Device you should make one URL pointing to server. In the starting of application get User Agent and send to your server.

I run this code to get User Agent

On Samsung Tablet 10.1 inch emulator i got user agent

and on Nexus emulator i got

Although this is not a direct answer, I would like to raise out the issue:

Please note that user-agent in client side can be modified easily. For example in programming aspect:

When using this HttpClient to access your site, the user agent will be «WAHAHAHA»

In addition, some web browsers available in market such as dolphin browser allows user to input any user agent combination they want.

Therefore what i think is the hit count statistic collected from the user agent will be not so reliable, I would recommend to find another criteria to collect the hit count information =]

Источник

android user agent

I am writing an app in Android that uses a WebView to display HTML content. I was told to get an Android user agent for my app — how do I do that? I opened http://whatsmyuseragent.com from my app as well as the Android browser — both the user agents are the same.

5 Answers 5

After much research, I figured it out. There is a way to set a user agent for Android WebView.

Put this in the onCreate method of the java class for the activity that displays the WebView:

Don’t use System.getProperty(«http.agent») — this will return the ‘Dalvik’ user agent (Dalvik is the VM that individual Android apps run within)

You can’t currently set the user-agent for WebView .

Update — I stand corrected!

In WebSettings there is a method called setUserAgentString:

You can use System.getProperty(«http.agent») to get the default device UA. And the webView.getSettings().getUserAgentString(); will give you the UA of the WebView . Be aware that we can set the UA programmatically. So it might not be the default device UA in all the cases.

System.getProperty(«http.agent») is the better way to get the UA and can be retrieved before an instance of WebView is available.

If you would like to experiment with a custom User-Agent in the standalone Browser application (not an embedded WebView inside an application), you can manipulate the User-Agent value by typing «about:useragent» in your browser’s URL field (without the quotes «»), and then load the page.

You will see a Dialog with radio buttons to simulate Iphone, Desktop, Lismore, Nexus One, Galaxy S or even a Custom User Agent edit box.

After you select/edit as per your needs, tap OK and you’re set.

Not the answer you’re looking for? Browse other questions tagged android user-agent or ask your own question.

Linked

Related

Hot Network Questions

Subscribe to RSS

To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. rev 2021.12.3.40888

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.

Источник