title: Discard the loging Screen
body: <p>I have developed a simple android application which user have to login with a login page and he will be redirect to the home page.But my problem is when i press back button from the home page it again redirected to the login page .But I don't want to see the login page.I want to exit from the application when the back button is pressed from the home page.How can i do this.Can someone help me.</p>