Android menu shared between activities (unwanted)

I think I understood the Activity lifecycle on Android, but I still can't figure why the followin is happening.

• Login activity - Login screen
• M开发者_Go百科ain activity - Main application interface

In Login activity, I connect to a service to validate the login. If the password is correct, I switch to Main activity using:

Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);

There is no Options menu in Login activity. I have an Options menu in Main activity that I inflate with:

    @Override
 public boolean onCreateOptionsMenu(Menu menu) {
     MenuInflater inflater = getMenuInflater();
     inflater.inflate(R.menu.option, menu);
     return true;
 }

So far so good. But I want the user to be able to log out and go back to login screen. So in Main activity I have an option in the menu that allows logging out:

   @Override
 public boolean onOptionsItemSelected(MenuItem item) {
     // Handle item selection
     switch (item.getItemId()) {
     case R.id.menuReset:
      getModel().deleteCredentials // stuff to logout from my service
      startActivity(new Intent(this, LoginActivity.class));
      finish();
      return true;
     }
 } 

If I press that menu button, the application displays Login activity again. But if I press the MENU key, the application displays the menu from Main activity even if it's not visible.

Furthermore, if I go back to home screen (pressing HOME) and come back to my activity after a while, the application displays the Login activity, but if I press the MENU key the Main application menu still shows.

How do I remove the menu from the Login activity?

Thanks

Oooooops, my bad. The inflate menu code was accidentally copied and pasted to Login Activity when I was coping another piece of code :)

Sorry about this Thanks anyway for the support!!

I think you don't need to call startActivity from your MainActivity to go to the Login Activity. Because the Activity chain, would be enough calling finish from your MainActivity.