ios - UIImagePickerController 不能在 Swift 中工作

Question

当我通过 UIImagePickerController 选择图像时，我在 xCode 中得到以下输出:

[discovery] errors encountered while discovering extensions: Error Domain=PlugInKit Code=13 "query cancelled" UserInfo={NSLocalizedDescription=query cancelled}

这是我的代码:

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    let image = info[UIImagePickerControllerOriginalImage] as! UIImage
    imagePicked = image
    
    dismiss(animated: true, completion: nil)
    performSegue(withIdentifier: "showImage", sender: self)
}

ViewController 类已按应有的方式声明:

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

let imagePickerController = UIImagePickerController()
var imagePicked = UIImage()

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    imagePickerController.delegate = self

}

我使用按钮打开 ImagePicker:

@IBAction func chooseImageBtn(_ sender: Any) {
    imagePickerController.sourceType = .photoLibrary
    self.present(imagePickerController, animated: true, completion: nil)
    
}

当我在模拟器中启动应用程序时，我可以单击按钮并选择一个图像，但随后选择器会关闭并且 Xcode 中会显示此消息:

2018-05-01 16:50:01.214450+0200 Awesome Name[57575:12752181] [MC] Reading from private effective user settings.

2018-05-01 16:50:03.740711+0200 Awesome Name[57575:12752241] [discovery] errors encountered while discovering extensions: Error Domain=PlugInKit Code=13 "query cancelled" UserInfo={NSLocalizedDescription=query cancelled}

我已经做了一些研究，但没有任何效果。 ImagePicker的delegate设置为self，我也试过在func imagePickerController(_ picker: 之前添加@objc，但没有解决问题。

我还能尝试什么来显示所选图像？

Answer 1

尝试删除 performeSegue功能，如果你真的需要使用它，只需将它添加到 completion的 dismiss功能。