Associate phone menu button with our application. We can do this with the “activity” property of window.

The code is described below.

//Creates window with activity property
var win = Ti.UI.createWindow({
    backgroundColor: '#fff',         //defines the background color of the window
    navBarHidden: true          //Hides the nav bar    
    activity: {//For Android only
        onCreateOptionsMenu: function(e) {
            var menu = e.menu;
            var settingsBtn = menu.add({
                title: 'Settings'
            });
            settingsBtn.setIcon(Ti.Android.R.drawable.ic_menu_preferences);
   
   //Onclick of that setting button
            settingsBtn.addEventListener('click', function(e) {
                alert("Setting button clicked");
//Do something
            });
        }        
    }
});