iOS 怎样切换横竖屏

来源：互联网发布：全球数据公司排名编辑：程序博客网时间：2024/06/10 01:25

上一篇文章是写我实现横竖屏之后遇到的问题,这里说一下是怎么实现横竖屏的

首先,因为我做的是其他页面禁止横屏,只要一个页面横屏,那么第一步,需要在AppDelegate中设置只能竖屏然后在指定界面开启横屏.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

self.spOrientation =UIInterfaceOrientationMaskPortrait;

return YES;

}

-(UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{

returnself.spOrientation;

}

下面是指定页面开启横屏

-(void)viewWillAppear:(BOOL)animated{

AppDelegate * delegate = [UIApplicationsharedApplication].delegate;

delegate.spOrientation = UIInterfaceOrientationMaskAll;

}

-(void)viewWillDisappear:(BOOL)animated{

AppDelegate * delegate = [UIApplicationsharedApplication].delegate;

delegate.spOrientation = UIInterfaceOrientationMaskPortrait;

}

因为前一个页面要求禁止横屏则需要在上一个页面写

- (void)viewWillAppear:(BOOL)animated {

[superviewWillAppear:animated];

[[UIDevicecurrentDevice] setValue: [NSNumbernumberWithInteger: UIInterfaceOrientationPortrait]forKey:@"orientation"];

}

这样就做到横竖屏切换啦

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