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    <p>Here are the <a href="http://hc.apache.org/httpcomponents-client-ga/index.html" rel="noreferrer">HttpClient 4 docs</a>, that is what Android is using (4, not 3, as of 1.0->2.x). The docs are hard to find (thanks Apache ;)) because HttpClient is now part of HttpComponents (and if you just look for HttpClient you will normally end up at the 3.x stuff). </p> <p>Also, if you do any number of requests you do not want to create the client over and over again. Rather, as the <a href="http://hc.apache.org/httpcomponents-client/tutorial/html/connmgmt.html#d4e604" rel="noreferrer">tutorials for HttpClient note</a>, create the client once and keep it around. From there use the <a href="http://hc.apache.org/httpcomponents-client/httpclient/apidocs/org/apache/http/impl/conn/tsccm/ThreadSafeClientConnManager.html" rel="noreferrer">ThreadSafeConnectionManager</a>. </p> <p>I use a helper class, for example something like <a href="http://code.google.com/p/and-bookworm/source/browse/trunk/src/com/totsp/bookworm/data/HttpHelper.java" rel="noreferrer">HttpHelper</a> (which is still a moving target - I plan to move this to it's own Android util project at some point, and support binary data, haven't gotten there yet), to help with this. The helper class creates the client, and has convenience wrapper methods for get/post/etc. Anywhere you USE this class from an <a href="http://developer.android.com/reference/android/app/Activity.html" rel="noreferrer">Activity</a>, you should create an internal inner <a href="http://developer.android.com/reference/android/os/AsyncTask.html" rel="noreferrer">AsyncTask</a> (so that you do not block the UI Thread while making the request), for example:</p> <pre><code> private class GetBookDataTask extends AsyncTask&lt;String, Void, Void&gt; { private ProgressDialog dialog = new ProgressDialog(BookScanResult.this); private String response; private HttpHelper httpHelper = new HttpHelper(); // can use UI thread here protected void onPreExecute() { dialog.setMessage("Retrieving HTTP data.."); dialog.show(); } // automatically done on worker thread (separate from UI thread) protected Void doInBackground(String... urls) { response = httpHelper.performGet(urls[0]); // use the response here if need be, parse XML or JSON, etc return null; } // can use UI thread here protected void onPostExecute(Void unused) { dialog.dismiss(); if (response != null) { // use the response back on the UI thread here outputTextView.setText(response); } } } </code></pre>
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    1. POAndroid project using httpclient --> http.client (apache), post/get method
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    1. USCharlie Collins
    1. USCharlie Collins
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    1. COEven better than my HttpHelper is the one the ZXing project uses - http://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/AndroidHttpClient.java. A little more difficult to work with (though still pretty easy), and more capable. (And I noticed it AFTER I had been using the one I wrote for a long time, similar approach, though not identical, but convergent, not copied. ;).)
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    2. COThe HTTP client docs have moved — now at: http://hc.apache.org/httpcomponents-client-ga/index.html
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    3. COKeep in mind that mine is a fairly old answer here, and I haven't updated that helper project in a while (I intend to, just haven't gotten to it). As of API level 8, Android has it's own helper: http://developer.android.com/reference/android/net/http/AndroidHttpClient.html
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