ios - 当 iPad 处于横屏模式时 Swift 旋转图标

Question

目前我的应用程序在纵向模式下看起来像这样:

但是当我的 iPad 处于横向模式时，我希望我的图标看起来像这样:

现在它在横向模式下看起来像这样:

所以我的问题是:我怎样才能旋转图标？我不需要更多的东西只是图标应该移动

Answer 1

将这行代码添加到 viewDidLoad 方法中:NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(rotate), name: UIDeviceOrientationDidChangeNotification, object: nil)
这是函数:

    func rotate(){
 if UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeLeft {
     self.takephoto.transform = CGAffineTransformMakeRotation(CGFloat(M_PI_2))
     self.recordButton.transform = CGAffineTransformMakeRotation(CGFloat(M_PI_2))
 } else if UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeRight {
     self.takephoto.transform = CGAffineTransformMakeRotation(CGFloat(-M_PI_2))
     self.recordButton.transform = CGAffineTransformMakeRotation(CGFloat(-M_PI_2))
 } else if UIDevice.currentDevice().orientation == UIDeviceOrientation.Portrait {
     self.takephoto.transform = CGAffineTransformMakeRotation(CGFloat(0))
     self.recordButton.transform = CGAffineTransformMakeRotation(CGFloat(0))
 } else if UIDevice.currentDevice().orientation == UIDeviceOrientation.PortraitUpsideDown {
     self.takephoto.transform = CGAffineTransformMakeRotation(CGFloat(M_PI))
     self.recordButton.transform = CGAffineTransformMakeRotation(CGFloat(M_PI))
 }
}