iOS强制切换横屏、竖屏

来源：互联网发布：网络上信息安全问题编辑：程序博客网时间：2024/05/21 06:18

切换横竖屏最直接的方式是调用device的setOrientation方法。但是从sdk3.0以后，这个方法转为似有API，如果要上AppStore的话，要慎用！

if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {

[[UIDevice currentDevice] performSelector:@selector(setOrientation:)

withObject:(id)UIInterfaceOrientationLandscapeRight];

}

第二种方式是手动的设置界面元素的旋转，包括状态栏、导航栏和视图。以下代码为从竖屏设置为横屏，坐标系是以竖屏的为基准，所以会出现负数的坐标值。

//设置状态栏旋转

[[UIApplication sharedApplication] setStatusBarOrientation:UIDeviceOrientationLandscapeRight animated:YES];

CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;

//设置旋转动画

[UIView beginAnimations:nil context:nil];

[UIView setAnimationDuration:duration];

//设置导航栏旋转

self.navigationController.navigationBar.frame = CGRectMake(-204, 224, 480, 32);

self.navigationController.navigationBar.transform = CGAffineTransformMakeRotation(M_PI*1.5);

//设置视图旋转

self.view.bounds = CGRectMake(0, -54, self.view.frame.size.width, self.view.frame.size.height);

self.view.transform = CGAffineTransformMakeRotation(M_PI*1.5);

[UIView commitAnimations];

来源： <http://blog.csdn.net/dickenslian/article/details/7407221>