iOS 横竖屏切换

1、打开横竖屏开关

1.png

2、因为屏幕翻转后width和height是相反的

/**屏幕翻转后width和height互换*/
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id)coordinator
{
    _imageView.frame = CGRectMake(0, 0, size.width, size.height);
}

github地址：https://github.com/WangJxin1992/Demo.git

后续待完善！