UIDevice Orientation

Question

I have the following code in a method. When I run this in the simulator the debugger skips right over the code?? What am I missing?

if (([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft) || 
  ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeRight)) 

{


} else {


}

Answer 1

Update 2

This shouldn't matter, but try turning on orientation notifications:

[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];


[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(detectOrientation) name:@"UIDeviceOrientationDidChangeNotification" object:nil];

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Update

My bad, I assumed it was empty.

Try removing the or statement and just test for a single orientation. See if that fixes it. Maybe there is a bracket problem or something silly.

I have the following test working in production code, so your technique should work:

    if (([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft) || 
        ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeRight)) {


}

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Original Answer

You have to actually put statements in the if blocks to get it to step in.

The debugger is smart enough to skip over empty blocks.

Answer 2

Here is also a good description: http://www.ploetzeneder.eu/softwareentwicklung/iphone/124-iphone-drehung-erkennen.html

Answer 3

Note that there's a macro UIDeviceOrientationIsLandscape and UIDeviceOrientationIsPortrait, so instead of comparing it separately to LandscapeLeft and LandscapeRight you could just do it like this:

if (UIDeviceOrientationIsLandscape([UIDevice currentDevice].orientation))
{
}