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it appears that you can't rely on <code>[UIDevice currentDevice].orientation</code> until the orientation actually changes for the first time. If so, you could probably hack it by getting raw accelerometer readings. <pre><code>#define kUpdateFrequency 30 // Hz #define kUpdateCount 15 // So we init after half a second #define kFilteringFactor (1.0f / kUpdateCount) - (void)applicationDidFinishLaunching:(UIApplication *)app { [UIAccelerometer sharedAccelerometer].updateInterval = (1.0 / kUpdateFrequency); [UIAccelerometer sharedAccelerometer].delegate = self; accelerometerCounter = 0; ... } - (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)accel { // Average out the first kUpdateCount readings // acceleration_[xyz] are ivars typed float acceleration_x = (float)accel.x * kFilteringFactor + acceleration_x * (1.0f - kFilteringFactor); acceleration_y = (float)accel.y * kFilteringFactor + acceleration_y * (1.0f - kFilteringFactor); acceleration_z = (float)accel.z * kFilteringFactor + acceleration_z * (1.0f - kFilteringFactor); accelerometerCounter++; if (accelerometerCounter == kUpdateCount) { [self initOrientation]; [UIAccelerometer sharedAccelerometer].delegate = nil; } } - (void)initOrientation { // Figure out orientation from acceleration_[xyz] and set up your UI... } </code></pre> <hr> Original response: Does <code>[UIDevice currentDevice].orientation</code> return the correct orientation during <code>applicationDidFinishLaunching:</code>? If so, you can set up your initial UI according to that orientation. If that property doesn't get set until some later time, you might try experimenting with <code>performSelector:afterDelay:</code> to initialize the UI after a small delay. This code sample is from Kendall's answer below, added here for completeness: <pre><code>[self performSelector:@selector(getOriented) withObject:nil afterDelay:0.0f]; </code></pre> I'm not sure if a zero-second delay is sufficient -- this means the code for <code>getOriented</code> will run during the first pass through the event run loop. You may need to wait longer for the accelerometer readings to register on <code>UIDevice</code>.
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1. POIs there a way to determine device orientation if view is loaded before [window makeKeyAndVisible] is called?
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