Android Thread and Runnable

This is my code for running a background thread. I believe it is very poor in naming and code structure.

package com.ocs.socialshare.bloggershare;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

import com.google.gdata.util.AuthenticationException;

public class MainActivity extends Activity implements OnClickListener{

    private Thread doinBackground;

    private EditText username,password,blogurl;
    private Button login;
    private String user,pass,bloglink;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById();
        setOnclickListenerRegister();
    }


    private void findViewById() {
        // TODO Auto-generated method stub
        username        =   (EditText) findViewById(R.id.username);
        password        =   (EditText) findViewById(R.id.password);
        blogurl         =   (EditText) findViewById(R.id.blogurl);
        login           =   (Button) findViewById(R.id.login);
    }

    private void setOnclickListenerRegister() {
        // TODO Auto-generated method stub
        login.setOnClickListener(this);
    }
    private void blogShare(final String user,final String pass,final String bloglink) {
        // TODO Auto-generated method stub

            doinBackground =new Thread(new Runnable() 
            {
                @Override
                public void run() 
                {
                // TODO Auto-generated method stub
                BloggerClient blog = new BloggerClient(getApplicationContext());
                try {
                    blog.oAuthBlogger(user,pass,bloglink);
                    } 
                    catch (AuthenticationException e) 
                    {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    }
                }
            });
        doinBackground.start();

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onClick(View view) {
        // TODO Auto-generated method stub
        int viewid  = view.getId();

        if(viewid == R.id.login)
        {
        validateFeild();
        blogShare(user,pass,bloglink);
        }
    }


    private void validateFeild() {
        // TODO Auto-generated method stub
        user        =    username.getText().toString();
        pass        =    password.getText().toString();
        bloglink    =    blogurl.getText().toString();

    }

}