在Swift 2.0中以橫向模式使用UIImagePickerController

Question

我正在編寫一個僅限LandScape的iPad應用程序，我需要從庫中發送圖片以發送數據庫，但圖像上傳屏幕只能在縱向模式下使用。我如何將其更改爲橫向模式？我讀過一些關於UIPickerControllerDelegate的內容，它不支持橫向模式，但是一些應用程序（如iMessage）已經在使用它。

這裏是我的代碼：

class signUpViewController: UIViewController,UIPickerViewDataSource, UIPickerViewDelegate, UINavigationControllerDelegate, UIImagePickerControllerDelegate { 


func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) { 

    print("Image Selected") 

    self.dismissViewControllerAnimated(true, completion: nil) 

    profileImageView.image = image 

} 



@IBAction func importImage(sender: AnyObject) { 

    var image = UIImagePickerController() 
    image.delegate = self 
    image.sourceType = UIImagePickerControllerSourceType.PhotoLibrary 
    image.allowsEditing = false 

    self.presentViewController(image, animated: true, completion: nil) 
} 
} 

Answer 1

它完全支持橫向模式。把這個擴展放在某個地方。最好在一個名爲的UIImagePickerController + SupportedOrientations.swift

文件

extension UIImagePickerController 
{ 
    public override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask { 
     return .Landscape 
    } 
} 

這使得所有UIImagePickerControllers在您的應用程序的風景線。您也可以繼承，並重寫此方法只作一個子類景觀能夠：

class LandscapePickerController: UIImagePickerController 
{ 
    public override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask { 
     return .Landscape 
    } 
} 

最後，支持所有的方向就可以返回

return [.Landscape, .Portrait] 

對於斯威夫特3：

extension UIImagePickerController 
    { 
     override open var shouldAutorotate: Bool { 
       return true 
     } 
     override open var supportedInterfaceOrientations : UIInterfaceOrientationMask { 
       return .all 
     } 
}