[Android] remember me checkbox

private CheckBox checkBox;
SharedPreferences login_pref;
private SharedPreferences.Editor loginPrefsEditor;
private Boolean saveLogin;

// onCreate

username = (EditText) findViewById(R.id.editText_username);
password = (EditText) findViewById(R.id.editText_password);
login = (Button) findViewById(R.id.button_login);
checkBox = (CheckBox)findViewById(R.id.checkBox1);
login.setOnClickListener(this);

login_pref = getSharedPreferences("loginPrefs", MODE_PRIVATE);
loginPrefsEditor = login_pref.edit();
saveLogin = login_pref.getBoolean("saveLogin", false);
if (saveLogin == true) {
        username.setText(login_pref.getString("username", ""));
        password.setText(login_pref.getString("password", ""));
        checkBox.setChecked(true);
}


//onClick

if (v == login)
{
Activity = new Intent();
name = username.getText().toString();
pwd = password.getText().toString();

        //Commit login information
if (checkBox.isChecked()) {
                loginPrefsEditor.putBoolean("saveLogin", true);
                loginPrefsEditor.putString("username", name);
                loginPrefsEditor.putString("password", pwd);
                loginPrefsEditor.commit();
            } else {
                loginPrefsEditor.clear();
                loginPrefsEditor.commit();
            }
}

        doSomething();
}


public void doSomething() {
        .......
    }