如何在iPhone中更改方向时更改viewcontroller的视图？ [英] How to change view of the viewcontroller when change the orientation in iPhone?

问题描述

我正在开发支持2种方向的iPhone应用程序。我有这个视图控制器的2个UIView文件。我需要根据设备接口方向将相应的UIView文件设置到视图控制器。你能指导我如何改变方向吗？

I'm developing an iPhone application which supports 2 orientations. I have 2 UIView files for this view controller. I need to set corresponding UIView file to the view controller according to the device interface orientation. Can you guide me on how to change the orientation?

推荐答案

为什么你要为两个方向使用两个视图？您可以设置控件的autoresizemask属性，如果纵向和横向两种模式具有相似的控件，则可以在同一位置显示。否则，则需要使用在

Why do you want to use two views for both orientation? You can set autoresizemask properties of controls, if portrait and landscape both mode has similar control to be show at same place. Otherwise, you need to use two views in

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration;
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation;

或者你可以收到UIDevice的通知

or you can have notification of UIDevice

 UIKIT_EXTERN NSString *const UIDeviceOrientationDidChangeNotification;

- (void)beginGeneratingDeviceOrientationNotifications;      // nestable
- (void)endGeneratingDeviceOrientationNotifications;

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