UIViewController
ローテーション イベントをオーバーライドする必要があります。次に例を示します。
-(BOOL)shouldAutorotate
{
return YES;
}
-(NSUInteger)supportedInterfaceOrientations
{
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
if (appDelegate.topViewController != nil) {
return [appDelegate.topViewController supportedInterfaceOrientations];
} else {
return UIInterfaceOrientationMaskPortrait;
}
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
if (appDelegate.topViewController != nil) {
return [appDelegate.topViewController preferredInterfaceOrientationForPresentation];
} else {
return UIInterfaceOrientationPortrait;
}
}