Error: “Method getText() must be called from the UI thread, currently inferred thread is worker.”

Question

While working on the project i get an error on following Activity. 1. Login.java on following Line of code.

Line: \"String username = user.getText().toString();\" Error

Answer 1

Unless something has changed that I'm not aware of, that shouldn't be a problem. UI elements can't be updated from the background but accessing their getters has never been an issue.

Anyway, you can get around this by adding a constructor to your AsyncTask which would take the two Strings then send them when creating your task.

private class Login extends AsyncTask<String, String, String>{

// member variables of the task class
String uName, pwd
public AttemptLogin(String userName, String password) {
    uName = userName;
    pwd = password;
}

@Override
protected String doInBackground(String... args) {...}

and pass them in your onClick()

case R.id.login:
 // execute method invokes doInBackground() where we open a Http URL connection using the given Servlet URL
 //and get output response from InputStream and return it.

 // pass them here

    new AttemptLogin(uname.getText().toString(), password.getText().toString()).execute();
                break;