Set a USER_AGENT in an android application, is it the same for HTTP?

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Set a USER_AGENT in an android application, is it the same for HTTP?

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#1 by (2 votes)

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I am trying to establish the USER_AGENT in an Android application, so that it can navigate, with which I indicate it. I am using the following lines of code:

 public void setUserAgent(){
      DefaultHttpClient http = new DefaultHttpClient();
      http.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "UserAgentPropio");
        Log.e("","");
        Log.e("USER AGENT : " + System.getProperty("http.agent"),"");
        Log.e("","");
 }

The question really branches in two:

First Is the USER_AGENT the same as it is used in HTTP and the one that is Applies to Android? , my question comes from that, on Android it is used to navigate in the WebView a specific User_Agent, but you can use another to browse the internet.

And the question I have as main.

When I do the System.getProperty(...) I detect another one, which I do not know if I'm detecting it in the indicated way.

Greetings.

java android http

asked by CodeNoob 02.11.2016 в 17:19

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1 answer

consume Json in android studio FATAL EXCEPTION: Thread-13149 High CPU usage in Visual Studio 2013 and IIS

score 2 · Accepted Answer

As an important comment, Apache classes are marked as obsolete:

import org.apache.http.impl.client.DefaultHttpClient;

now it is recommended to use HttpURLConnection

To define a User-Agent to your connection using DefaultHttpClient is:

DefaultHttpClient http = new DefaultHttpClient(); 
http.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "<Mi USER-AGENT>");

If you use UrlConnection ( HttpURLConnection is subclass), defined this way:

URLConnection conn = new URL("http://...").openConnection();
conn.setRequestProperty("User-agent", "<Mi USER-AGENT>");
conn.connect();

First Is the USER_AGENT the same as it is used in HTTP and the one that is Applies to Android? , my question comes from that, on Android it is used to navigate in the WebView a specific User_Agent, but you can use another to browse the internet.

When you define another User-Agent you are overwriting this property and you can browse without problem unless you have configured a specific User-Agent to allow you to navigate when making the request.

And the question I have as main. When I do the System.getProperty (...) detects another one, which I do not know if I'm detecting in the indicated way.

Through System.getProperty("http.agent") you get the default User-Agent.

Which you can overwrite your connection.

http.getParams().setParameter(CoreProtocolPNames.USER_AGENT,
                                System.getProperty("http.agent"));

You must decide which one you need, the default or overwrite another one:

http.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "<Mi USER-AGENT>");