IOS6.0 xcode4.5 set landscape Screen

After upgrading xcode4.5 iOS 6.0, the previous horizontal screen project changed to a vertical screen. The following are the solutions:

Initialization Method in AppDelegate

-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) in launchOptions

Set

[Window addSubview: viewController. view];

Replace it with the following code:

If ([[UIDevice currentDevice]. systemVersion floatValue] <6.0)

{// Warning: addSubView doesn't work on iOS6

[Window addSubview: viewController. view];

}

Else

{// Use this mehod on ios6

[Window setRootViewController: viewController];

}

Add the following two methods to RootViewController:

-(NSUInteger) supportedInterfaceOrientations {

Return UIInterfaceOrientationMaskLandscape;

}

-(BOOL) shouldAutorotate {

Return YES;