A much touted feature of OS X Lion is the ability to use applications in full-screen mode. It’s easy enough to make an already open application full-screen, but I’ve had limited success re-opening applications full-screen using the initial public 10.7.0 release of Lion.
To put an open application into full-screen mode, simply click the arrows in the top-right corner of the application’s window.
However, re-opening an application in full-screen appears not so straight forward.
My understanding is that if you want an application to re-open in full-screen mode you mustn’t quit the full-screen application using command-Q. Instead, you need to navigate to the Desktop, control-click the application icon in the Dock and click Quit. It appears also that you need to do this every time you want the application to re-open in full-screen mode.
However, this seems a little inconsistent. Take Mail for example.
Open Mail in non full-screen mode and open, say, the Activity window (Window > Activity). Now put Mail into full-screen mode and launch Mission Control. You’ll see that as a full-screen application Mail occupies its own space. Mail’s Activity window, however, is shown on the Desktop.
Quit Mail while in full-screen using the method described above and you’d expect Mail to re-open full-screen. It doesn’t. Why? I suspect it has something to do with the Mail’s Activity window.
So, close the Activity window first before putting Mail into full-screen mode. Now quit Mail using its Dock icon. Open Mail and it’s full-screen.
I’ve experienced the same problem when Mail’s Preferences window is open, but not with Mail’s Photo Browser nor Address Panel windows. The same is true of Safari with either the Preferences or Activity windows open. iTunes however seems to suffer no such problem. It re-opens in full-screen regardless of which windows were open. Odd.
Whether this is expected behaviour or a bug, the way to have a fair chance of applications re-opening in full-screen mode is to close any additional application windows first.