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Hi
I am developing a login form in android using php and mysql each time i try to test in the emulator it shows the following error
in the stack trace

02-02 17:20:05.137 1145-1145/green.gemstouch.com.samplelogin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: green.gemstouch.com.samplelogin, PID: 1145
android.os.NetworkOnMainThreadException

see the code below
Java
public class MyActivity extends ActionBarActivity  {

    EditText username, password;
    Button login;
    TextView status;
    HttpPost httppost;
    StringBuffer buffer;
    HttpResponse response;
    HttpClient httpclient;
    List<namevaluepair> nameValuePairs;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);
        
        setup();
    }

    private void setup() {
        username = (EditText) findViewById(R.id.username);
        password = (EditText) findViewById(R.id.password);
        login = (Button) findViewById(R.id.login);
        status = (TextView) findViewById(R.id.status);

        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                switch (arg0.getId()){
                    case R.id.login:

                        login();    
                        break;
                }
            }
        });
    }

    private void login() {
        try{
            httpclient = new DefaultHttpClient();
            httppost = new HttpPost("http://10.0.2.2/akadalogin/sample.php");
            nameValuePairs = new ArrayList<namevaluepair>(1);
            nameValuePairs.add(new BasicNameValuePair("username", username.getText().toString().trim()));
            nameValuePairs.add(new BasicNameValuePair("password", password.getText().toString().trim()));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            response = httpclient.execute(httppost);

            ResponseHandler<string> responseHandler = new BasicResponseHandler();
            final String response = httpclient.execute(httppost, responseHandler);

            status.setText(""+response);
            if (response.equalsIgnoreCase("User found")){
                startActivity(new Intent(MyActivity.this, UserPage.class));
            }



        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

Kindly help
Posted
Updated 2-Feb-15 19:26pm
v2

1 solution

Few issue you need to know.

1. You cannot do any network related work from the main thread

to do so you will have to call network related work in separate thread.
The simplest way would be: using AsyncTask class.

And also you are trying to log in with user account. In this case also take a look at HttpContex, provided by Apache. HttpContext will recall your cookies
   

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