how do you make an app ONLY support landscape?

问题

how do you make an app ONLY support landscape? No portrait mode JUST landscape throughout the whole thing in xcode 3?

回答1:

My naive answer is to add this method in all of your root view controllers:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{
    if (interfaceOrientation==UIInterfaceOrientationLandscapeLeft || interfaceOrientation==UIInterfaceOrientationLandscapeRight)
        return YES;

    return NO;
}

This is what I do in my game. Of course, my game only has one view controller.

Also, I found it helpful to set "Initial interface orientation" in my app's info.plist to Landscape.

回答2:

The accepted answer did not work for me. This did:

In the properties file for your app (YOURAPPNAME-Info.plist), located in the "supporting files" group, there is an array called "Supported interface orientations". Remove the orientations you don't want from the array, and your app will be locked into the remaining orientation.

回答3:

You can change the Supported interface orientations in your info.plist file, as shown below:

回答4:

Orientations are now easily set using the target's summary tab.

回答5:

We can change the orientation by simply selecting the required orientations as well. Select the device from "devices" and change the orientation

来源：https://stackoverflow.com/questions/5838459/how-do-you-make-an-app-only-support-landscape