Getting data from API URL using GET in Android (AsyncTask). Credits: http://goo.gl/5hgFC

LongRunningGetIO

private class LongRunningGetIO extends AsyncTask <Void, Void, String>{
  	protected String getASCIIContentFromEntity(HttpEntity entity) throws IllegalStateException, IOException{
			InputStream in = entity.getContent();
			StringBuffer out = new StringBuffer();
			
			int n = 1;
			while (n>0) {
				byte[] b = new byte[4096];
				n =  in.read(b);
				if (n>0){
					out.append(new String(b, 0, n));
				}
			}
			
			return out.toString();
		}
		
		@Override
		protected String doInBackground(Void... params){
			
			HttpClient httpClient = new DefaultHttpClient()	;
			HttpContext localContext = new BasicHttpContext();
			
			String resource_url = "http://api.example.com/resource";
			HttpGet httpGet = new HttpGet(resource_url);
			
			//Add user authentication
			String username = "USERNAME HERE";
			String password = "PASSWORD HERE";
			httpGet.addHeader("Authorization", "Basic " + Base64.encodeToString((username + ":" + password).getBytes(),Base64.NO_WRAP));
			
			String text = null;
			try{
				HttpResponse response = httpClient.execute(httpGet, localContext);
				HttpEntity entity = response.getEntity();
				text = getASCIIContentFromEntity(entity);
			} catch (Exception e){	
				return e.getLocalizedMessage();
			}
			
			return text;
		}
		
		protected void onPostExecute(String results){
			if (results!=null){
				//Add some actions here if successful
				Log.d("RESULT", results);
			}
		}
	}