How do I detect orientation on app launch for splash screen animation on iPad!

iphone uikit uiinterfaceorientation uidevice device-orientation
Horatiu Paraschiv picture Horatiu Paraschiv · Aug 13, 2010 · Viewed 11.2k times · Source

Hi I have an app and I have two *.pngs for default splash screen:

Default-Landscape.png Default-Portrait.png

What I want is to animate this default splash screen away when my app is loaded and ready to go.

To achieve this I would normally present an UIImageView with either default-landscape or default-portrait (depending on the device orientation), keep it on screen for a certain time and then animate it away.

My problem is that if I call [[UIDevice currentDevice] orientation] in 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

The answer is always that the device is in portrait orientation even if I clearly have it in landscape. I tried this in simulator and on the device as well and the behaviour is the same.

Does anyone know a fix for this or maybe some other approach?

Thanks!

Answer

Rich Lowenberg picture Rich Lowenberg · Aug 8, 2011

I had troubles with this and I solved it by making one image 1024x1024 and setting the contentMode of the UIImageView to UIViewContentModeTop, then using left and right margin autoresizing. So long as your portrait and landscape default images are the same layout then this will work fine.

Just to clarify here's what I used:

bgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:SplashImage]];
bgView.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
bgView.contentMode = UIViewContentModeTop;

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