标签:style blog class code c tar
在iOS应用开发过程中,经常会遇到设置屏幕方向,或者根据屏幕方向改变界面的时候,所以现在就来说一下屏幕方向的那些事情。
关于方向,经常会遇到以下的两个对象:
1.UIDeviceOrientation(机器设备的方向)
==================================
UIDeviceOrientationUnknown //未知方向
UIDeviceOrientationPortrait, //设备直立,home按钮在下
UIDeviceOrientationPortraitUpsideDown, //设备直立,home按钮在上
UIDeviceOrientationLandscapeLeft, //设备横置,home按钮在右
UIDeviceOrientationLandscapeRight, //设备横置, home按钮在左
UIDeviceOrientationFaceUp, //设备平放,屏幕朝上
UIDeviceOrientationFaceDown //设备平放,屏幕朝下
==================================
2.UIInterfaceOrientation(界面的方向,iOS6之后可以去看UIInterfaceOrientationMask)
==================================
UIInterfaceOrientationPortrait //竖向,home按钮在下
UIInterfaceOrientationPortraitUpsideDown //竖向,home按钮在上
UIInterfaceOrientationLandscapeLeft //横向,home按钮在左
UIInterfaceOrientationLandscapeRight //横向,home按钮在右
==================================
界面的开发主要使用UIInterfaceOrientation
-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {}//视图旋转之前自动调用
-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
duration:(NSTimeInterval)duration
{}//旋转方向发生改变时自动调用
-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {}//视图旋转完成之后自动调用
1.1工程设置(XCode5为例)
Targets->General->DeploymentInfo->Device Orientation进行设置
1.2在AppDelegate.m中设置(iOS6之后)
-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
return UIInterfaceOrientationMaskPortrait;
}
iOS6之后:
-(BOOL)shouldAutorotate{
return YES;
}//是否支持旋转
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskLandscapeRight;
}//支持的方向
iOS6之前:
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation{
return toInterfaceOrientation == UIInterfaceOrientationLandscapeRight;
}
引用了UINavigationController,需要改变的视图的是UINavigationController的RootViewController
那么需要新建一个UINavigationController的子类(当然要设置改变的视图是该子类的RootViewController),在这个子类里面添加下面的方法
- (BOOL)shouldAutorotate
{
return self.topViewController.shouldAutorotate;
}
- (NSUInteger)supportedInterfaceOrientations
{
return self.topViewController.supportedInterfaceOrientations;
}
然后在对每个视图分别按2进行设置
参考链接:
1.http://blog.csdn.net/zzfsuiye/article/details/8251060
2.http://www.cocoachina.com/applenews/devnews/2012/1218/5364.html
标签:style blog class code c tar
原文地址:http://www.cnblogs.com/qisedao0215/p/3728811.html