Question

I am trying sending data from android application (with emulator) to web server (a php page) nowadays. Firstly, I had tried this program with emulator and it was working. After that, I tried this program with telephone and an exception occurred :

–> IO Exception : The operation timed out.

One part of my code :

HttpClient httpclient = new DefaultHttpClient();

HttpPost httppost = new HttpPost("http://10.0.2.2:90/takeDatas.php");
try {                   
    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
    nameValuePairs.add(new BasicNameValuePair("enlem", latitude ));
    nameValuePairs.add(new BasicNameValuePair("boylam", longitude ));
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
    httpclient.execute(httppost);

} catch (ClientProtocolException e) {
    Toast.makeText(ReportLocationActivity.this, "Client protokol exception ", Toast.LENGTH_LONG).show();
} catch (IOException e) {
    Toast.makeText(ReportLocationActivity.this, "IO exception "+e.getMessage(), Toast.LENGTH_LONG).show();
}

I hope you will help me.
Thanks in advance.

Answer 1

The localhost in emulator is the emulator itself. Not sure about Windows environment, but under Linux I was able to get an access to web server on the host system from the emulator by IP 10.0.2.2 (Note: this IP is not the IP of my Linux system, but from the emulator it’s accessible exactly by this IP).
You can read more about emulator networking here.