How to send parameters with url and get response in android

Use intent to pass data,

 Intent intent = new Intent(getBaseContext(), SignoutActivity.class); intent.putExtra("UID", uId); startActivity(intent) 

Method 1:

 Class A { String UID = "3"; public static void main(String[] args){ ClassB.setUid(3); } } Class B { public static String uid; public static setUid(String id){ uid = id; } } 

Method 2:

Intent intent = new Intent(getBaseContext(), SignoutActivity.class); intent.putExtra("U_ID", uId); startActivity(intent) 

Beware about static variables, programmers dont usually like them and call them evil.

If what you're trying to do is transfer data from one activity to another, try adding an extra to your intent. After you've created the intent to launch the next page, add something like

intent.putExtra("uid", uid); 

to add the uid as an extra. And on the next page, you can retrieve this data by

 Intent intent = getIntent(); int uid = intent.getIntExtra("uid", defaultvalue); 

In case you need to pass parameters along with GET method, you can simply add the respective values to the url:

public void getData(String uid) { HttpClient httpclient = new DefaultHttpClient(); HttpGet httpget = new HttpGet("http://www.yoursite.com/script.php?uid=" + uid); HttpResponse response = httpclient.execute(httpget); } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } } 

If you want to pass parameters with POST method the code is a bit more complex:

public void postData(String uid) { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php"); try { List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>; nameValuePairs.add(new BasicNameValuePair("uid", uid)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } } 

In both cases you can get server response as stream:

InputStream s = response.getEntity().getContent(); 

The easiest way to get response body as a String is to call:

String body = EntityUtils.toString(response.getEntity()); 

Of course, there are numerous other ways to achive what you desire.

There are two ways to pass parameters with Get request.

1. http://myurl.com?variable1=value&variable2=value2
2. Passing arguments as headers in request.

As HttpClient is now deprecated in the API 22, so you should use the Google Volley https://developer.android.com/training/volley/simple.html

Adding parameters using volley library as

/** * This method is used to add the new JSON request to queue. * @param method - Type of request * @param url - url of request * @param params - parameters * @param headerParams - header parameters * @param successListener - success listener * @param errorListener - error listener */ public void executeJSONRequest(int method, String url, final JSONObject params, final HashMap<String, String> headerParams, Response.Listener successListener, Response.ErrorListener errorListener) { JsonObjectRequest request = new JsonObjectRequest(method, url, params, successListener, errorListener) { @Override public Map<String, String> getHeaders() throws AuthFailureError { if (headerParams != null) return headerParams; else return super.getHeaders(); } }; // Add request to queue. addRequestToQueue(request); }