这两天问答系统里,问ios横竖屏切换、还有状态栏旋转的问题有点多,来些小心得,希望遇到的人少走弯路;
先贴官方说明:
iOS 6.0 Release Notes:
Autorotation is changing in iOS 6. In iOS 6, the shouldAutorotateToInterfaceOrientation: method
of UIViewController is deprecated.In its place, you should use the supportedInterfaceOrientationsForWindow:
and shouldAutorotate methods.
在iOS 6.0之前我们都是使用shouldAutorotateToInterfaceOrientation方法来控制视图、状态栏的旋转,但是iOS 6.0及以后
就要使用supportedInterfaceOrientations方法来控制旋转了;
所以向iOS 6.0兼容的需要手动添加supportedInterfaceOrientations 方法,来控制视图和 状态栏的旋转,还有两点需要说明:
1、在iOS 6.0之前,控制旋转的代码,无需和plist的中的Supported interface orientations一一对应,举个例子:
plist的Supported interface orientations选项中支持,Portrait(bottom home button)、Landscape(right home button),无Landscape(left home button)
方法shouldAutorotateToInterfaceOrientation中强制支持UIInterfaceOrientationLandscapeLeft编译执行没有任何问题,
但是在iOS 6.0中,如果在supportedInterfaceOrientations中添加UIInterfaceOrientationMaskLandscapeLeft编译正常,
运行过程中,左旋转程序就会异常退出;��以程序支持旋转的,代码与plist一定要保持一致;
2、在Xcode 4.5之前旋转支持的是
UIInterfaceOrientationLandscapeLeft
UIInterfaceOrientationLandscapeRight
UIInterfaceOrientationPortrait
UIInterfaceOrientationPortraitUpsideDown
而Xcode 4.5 GM Seed及Xcode 4.5.1旋转支持的是(多了个All,还有Mask的修饰,Xcode 4.5之前是不识别的)
UIInterfaceOrientationMaskAll
UIInterfaceOrientationMaskLandscapeLeft
UIInterfaceOrientationMaskLandscapeRight
UIInterfaceOrientationMaskPortrait
UIInterfaceOrientationMaskPortraitUpsideDown
原文地址:
http://www.cocoachina.com/bbs/read.php?tid=121996