在AppDelegate.h中定义这两个属性

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (nonatomic, assign) BOOL allowRotation;//允许旋转

@property (nonatomic, assign) BOOL rightRotation;//右侧旋转

@end

在AppDelegate.m中添加下方代码

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

if (self.allowRotation) {

return UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskLandscapeLeft|UIInterfaceOrientationMaskLandscapeRight;

}elseif(self.rightRotation) {

return UIInterfaceOrientationMaskLandscapeRight;

}

return UIInterfaceOrientationMaskPortrait;

}

在想要横屏时

AppDelegate *appdelegate=(AppDelegate *)[UIApplication sharedApplication].delegate;

appdelegate.rightRotation=YES;

[appdelegateapplication:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];

//强制翻转屏幕，Home键在右边。

[[UIDevice currentDevice] setValue:@(UIInterfaceOrientationLandscapeRight) forKey:@"orientation"];

//刷新

[UIViewController attemptRotationToDeviceOrientation];

竖屏时

AppDelegate *appdelegate=(AppDelegate *)[UIApplication sharedApplication].delegate;

appdelegate.rightRotation=NO;

[appdelegateapplication:[UIApplication sharedApplication] supportedInterfaceOrientationsForWindow:self.view.window];

   //强制翻转屏幕

   [[UIDevice currentDevice] setValue:@(UIDeviceOrientationPortrait) forKey:@"orientation"];

   //刷新

   [UIViewController attemptRotationToDeviceOrientation];