Remove ability for portrait orientation for app in

问题:

Is there a way where I can only allow my app viewable in landscape mode? I've managed to default the application's orientation to landscape, however in the iPad simulator, when I do Command->Arrow, the application rotates to portrait. I've removed the listings in the plist under "Supported interface orientations" for both of the Portrait entries, however that doesn't seem to've changed anything.

Any idea?

回答1:

In your view controller, there's a delegate method for this:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return ((interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || 
            (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

回答2:

Do a project find for "autorotate", and edit the methods you'll find accordingly.

回答3:

I believe you need tell the view that the specified orientation is not supported

http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instm/UIViewController/shouldAutorotateToInterfaceOrientation:

回答4:

Actually it is

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || 
    (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

回答5:

Things have changed with some updates. Currently, you'll simply need to add the following method:

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

that will only allow landscape. Turn the phone all you like and it will only stay in either left or right landscape. Have fun :)