Question

This might be a duplicate of a few thread, but the solution I found to solve this problem didn’t work for me. My application is always starting in portrait mode, even though I have the next lines in my APP-Info.PList :

    <key>UISupportedInterfaceOrientations~ipad</key>
<array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>

Thanks for you help

[EDIT 1] To be clearer about the problem

The application actually starts up in landscape mode but when I log the size of the screen in the viewDidLoad method of the rootViewController, it gives me the sizes for portrait mode. This is the actual problem, because I would like to add a subview to the main view which size depends on the orientation of the screen. I hope I was clearer.

Answer 1

Your AppDelegate has the shouldAutorotateToInterfaceOrientation: Method. If it returns YES then any orientation will be allowed.
Try this:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{
    // Returns only Landscape Mode
    return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}

Hope this helps