A connection timeout occurs only upon starting the TCP connection. This usually happens if the remote machine does not answer. This means that the server has been shut down, you used the wrong IP/DNS name, wrong port or the network connection to the server is down. A socket timeout is dedicated to monitor the continuous … Read more
A fine example found here. Powerlord got it right, below, for POST you need HttpURLConnection, instead. Below is the code to do that, URL url = new URL(urlString); URLConnection conn = url.openConnection(); conn.setDoOutput(true); conn.setRequestProperty (“Authorization”, encodedCredentials); OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream()); writer.write(data); writer.flush(); String line; BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); while ((line = reader.readLine()) … Read more
Use 10.0.2.2 to access your actual machine. As you’ve learned, when you use the emulator, localhost (127.0.0.1) refers to the device’s own loopback service, not the one on your machine as you may expect. You can use 10.0.2.2 to access your actual machine, it is an alias set up to help in development.
Note (Oct 2020): AsyncTask used in the following answer has been deprecated in Android API level 30. Please refer to Official documentation or this blog post for a more updated example Updated (June 2017) Answer which works on Android 6.0+. Thanks to @Rohit Suthar, @Tamis Bolvari and @sudhiskr for the comments. public class CallAPI extends … Read more