====== Automatically update the screen orientation ======

//Here's a very useful code-snippet from this [[http://forum.sparrow-framework.org/topic/interface-orientation-solution|forum thread]]. Thanks, Arend!//

One great thing about the iDevices is that you can detect the orientation of the screen and rotate the content accordingly. Here is a way to do it in Sparrow.

In the ApplicationDelegate do this:

<code objc>
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orientation
{
    return YES;
}
</code>

In the SPStage class, in it's initWithWidth: Height: method add this:

<code objc>
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(onOrientationDidChange:)
    name:@"UIDeviceOrientationDidChangeNotification" object:nil];
</code>

and add another method in this class:

<code objc>
-(void)onOrientationDidChange:(UIEvent *)event
{
    NSLog(@"%i", [UIDevice currentDevice].orientation);
}
</code>

Whenever the device is now turned, the ''onOrientationDidChange''-method gets called, and you can update the screen accordingly within this method.