iOS横屏和竖屏的切换

Question

ios中可以设置是横屏还是竖屏。但如果你在xcode中同时选择了横屏和竖屏，当你旋转屏幕时，你的view就会同时就会跟着旋转。我现在的问题时，我的app要有两个view，一个是支持横屏的，另外一个是竖屏的。两个view通过一个button关联，点一下，进入另一个。简单地说，不根据屏幕的旋转显示对应的视图，而是根据button切换不同的视图？

Answer 1

主要的代码例子如下所示：

一 PortraitViewController 不旋转，保持竖屏

//iOS 5
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
        return (toInterfaceOrientation == UIInterfaceOrientationPortrait);
}
//iOS 6
- (BOOL)shouldAutorotate
{
        return NO;
}
- (NSUInteger)supportedInterfaceOrientations
{
        return UIInterfaceOrientationMaskPortrait;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
        return UIInterfaceOrientationPortrait;
}

二 LandscapeViewController 始终保持横屏

//iOS 5
- (BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
        return (toInterfaceOrientation == self.preferredInterfaceOrientationForPresentation);
}
//iOS 6
- (BOOL) shouldAutorotate
{
        return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
        return UIInterfaceOrientationMaskLandscapeRight;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
        return UIInterfaceOrientationLandscapeRight;
}