访问相机和照相馆 [英] Access to Camera and PhotoLibrary

问题描述

在我的iOS应用中，我有一个ImageView和两个用于打开相机和照相馆的按钮.当我单击其中一个按钮时，该应用程序将关闭. (我在设备上而不是模拟器上运行该应用程序) 我必须在代码中进行哪些更改?

In my iOS app I have an ImageView and two Buttons for opening the camera and the photolibrary. When I click on one of the buttons the app closes. (I'm running the app on my device, not the simulator) What do I have to change in my code?

class PhotoViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {


@IBOutlet weak var ImageDisplay: UIImageView!
@IBOutlet weak var libraryOutlet: UIButton!
@IBOutlet weak var cameraOutlet: UIButton!


override func viewDidLoad() {
    super.viewDidLoad()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

@IBAction func openCameraButton(_ sender: UIButton) {
        let picker = UIImagePickerController()
        picker.delegate = self
        picker.sourceType = .camera
        present(picker, animated: true, completion: nil)

    }

@IBAction func openLibraryButton(_ sender: UIButton) {
        let picker = UIImagePickerController()
        picker.delegate = self
        picker.sourceType = .photoLibrary
        present(picker, animated: true, completion: nil)
    }

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    ImageDisplay.image = info[UIImagePickerControllerOriginalImage] as? UIImage
    dismiss(animated: true, completion: nil)
}

}

推荐答案

在iOS 10中，您需要通过在plist中添加以下键来访问photoLibrary或相机，并且需要使用适当的委托方法.

In iOS 10 you need permission to access photoLibrary or camera by adding below keys to your plist and you need to use the proper delegate method.

访问照片库:

@IBAction func library(_ sender: UIButton) {

    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.photoLibrary) {
        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
        imagePicker.allowsEditing = true
        self.present(imagePicker, animated: true, completion: nil)
      } 
    }

访问设备摄像头:

@IBAction func camera(_ sender: UIButton) {

    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) {    
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerControllerSourceType.camera;
        imagePicker.allowsEditing = false
        self.present(imagePicker, animated: true, completion: nil)
        }
    }

要拾取并显示图像:

 func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
    ImageDisplay.image = image
    }
    picker.dismiss(animated: true, completion: nil);
 }

输出:

这篇关于访问相机和照相馆的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！