ios横屏或竖屏

框架 XMHVScreen

在不同界面设置横屏或者竖屏，以及之间的切换

#继承UINavigationController新建导航栏

.m文件添加代码

// 屏幕旋转

-(BOOL)shouldAutorotate{

return self.topViewController.shouldAutorotate;

}

//支持的方向

- (UIInterfaceOrientationMask)supportedInterfaceOrientations {

return self.topViewController.supportedInterfaceOrientations;

}

此导航栏设置为根控制器

#导入头文件

#import "XMNav.h"

需要竖屏的控制器继承 XMVerticalScreenViewController

需要横屏的控制器继承 XMHorizontalScreenViewController

原理：

设置竖屏控制器

- (void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

// 设置竖向方向

[self setDirection];

}

// 设置竖向方向

- (void)setDirection{

NSNumber *orientationUnknown = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];

[[UIDevice currentDevice] setValue:orientationUnknown forKey:@"orientation"];

NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationMaskPortrait];

[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];

}

//支持的方向

-(UIInterfaceOrientationMask)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskPortrait;

}

//是否可以旋转

-(BOOL)shouldAutorotate

{

return YES;

}

设置横向方向

- (void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

// 设置横向方向

[self setDirection];

}

// 设置竖横向方向

- (void)setDirection{

NSNumber *orientationUnknown = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];

[[UIDevice currentDevice] setValue:orientationUnknown forKey:@"orientation"];

NSNumber *orientationTarget = [NSNumber numberWithInt:UIInterfaceOrientationLandscapeRight];

[[UIDevice currentDevice] setValue:orientationTarget forKey:@"orientation"];

}

//支持的方向

-(UIInterfaceOrientationMask)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskLandscapeRight;

}

//是否可以旋转

-(BOOL)shouldAutorotate

{

return YES;

}

gitHub下载demo地址

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