如何在Xcode 6上访问相机库

Question

我正在使用swift开发一个非常简单的iPhone应用程序，您可以在其中拍照并将其保存到解析中。

我想知道在哪里可以找到访问相机库的文档，因为我发现的唯一的东西就是快速文档。

关于如何解决这个问题的任何建议都会非常有用。

Answer 1

Base class says: hello makeInstance1 built a BaseClass I think it is a __lldb_expr_89.SubClass Base class says: hello makeInstance2 built a BaseClass I think it is a __lldb_expr_89.BaseClass 是您要实施的对象。 Apple的文档在页面顶部有一个swift / objective-c切换。

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIImagePickerController_Class/

Answer 2

您必须使用UIImagePickerController。 Here's官方Apple文档。

1. 确保您的视图控制器符合UIImagePickerControllerDelegate

   class ViewController: UIViewController,UIImagePickerControllerDelegate
   

2. 检查用户的设备是否有摄像头（很多人忘了这样做）。

   if (UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)) { 
       // if the user's device has a camera, set the source type to camera
       picker!.sourceType = UIImagePickerControllerSourceType.Camera
       // present the picker view controller
       self.presentViewController(picker, animated: true, completion: nil)
   }
   

3. 实施委托方法

   func imagePickerController(picker: UIImagePickerController!, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]!) {
       // dismiss the picker controller
       picker.dismissViewControllerAnimated(true, completion: nil)
       // retrieve the image
       var image = info[UIImagePickerControllerOriginalImage] as UIImage
   }
   
   func imagePickerControllerDidCancel(picker: UIImagePickerController!) {
       // user cancelled
   }