我无法将照片库中的图像设置到 imageView，并出现错误 Error Domain=PlugInKit Code=13 “query cancelled”

Question

我正在使用 swift4 开发一个 ios 应用程序。点击profile image view时，在imageview上设置profile image，我有点击手势调用功能。

下面是我的代码。我按照 swift 指南使用扩展实现了选择器委托。

看到几个关于同一个问题的文档，我想我做了我必须做的。但我无法找出错误，并在 imageview 上设置图像。请检查我的代码。

import UIKit
import Kingfisher
import Alamofire
import Photos
class MyProfileVC: BaseNavigationVC {

@IBOutlet weak var stateMessageLabel: UILabel!
@IBOutlet weak var profileImageView: UIImageView!
@IBOutlet weak var nicknameLabel: UILabel!
@IBOutlet weak var sexImageView: UIImageView!
@IBOutlet weak var hash1Button: UIButton!
@IBOutlet weak var hash2Button: UIButton!
@IBOutlet weak var hash3Button: UIButton!

let picker = UIImagePickerController()

override func viewDidLoad() {
    super.viewDidLoad()


    picker.delegate = self

    picker.allowsEditing = true
    picker.sourceType = .photoLibrary
    picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!

    let tap = UITapGestureRecognizer(target: self, action: #selector(self.tappedProfileImageView))
    profileImageView.addGestureRecognizer(tap)
    profileImageView.isUserInteractionEnabled = true


}

@objc func tappedProfileImageView(){
    openGallery()
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(false)
    self.checkPermission()


//I updated this part. this code works correctly
    if let imageUrl = UserInfo.shared().photoUri{
        let url = URL(string: imageUrl)

        profileImageView.layer.masksToBounds = false
        profileImageView.clipsToBounds = true
        profileImageView.layer.cornerRadius = profileImageView.frame.size.width / 2
        profileImageView.contentMode = .scaleAspectFill
        profileImageView.kf.setImage(with: url)

    }
}


func openGallery(){
    picker.sourceType = .photoLibrary

    present(picker, animated: true, completion: nil)


}

func checkPermission() {
    let photoAuthorizationStatus = PHPhotoLibrary.authorizationStatus()
    switch photoAuthorizationStatus {
    case .authorized: print("Access is granted by user")
    case .notDetermined: PHPhotoLibrary.requestAuthorization({
        (newStatus) in
        print("status is \(newStatus)")
        if newStatus == PHAuthorizationStatus.authorized {
            print("success") }
    })
    case .restricted:
        print("User do not have access to photo album.")
    case .denied:
        print("User has denied the permission.")
    }
}

}

extension MyProfileVC : UIImagePickerControllerDelegate, 

UINavigationControllerDelegate{
    @objc func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        if let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage{


        self.profileImageView.image = image
        print(info)

    }

    dismiss(animated: true, completion: nil)

}

func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
    dismiss(animated: true, completion: nil)
}

}

问题的原因是什么。

打印信息的时候调试区是这样的

[__C.UIImagePickerControllerInfoKey(_rawValue: UIImagePickerControllerReferenceURL): assets-library://asset/asset.JPG?id=54FE2CEF-59E7-4BCC-AF84-D64C1F32E58B&ext=JPG, __C.UIImagePickerControllerInfoKey( _rawValue: UIImagePickerControllerCropRect): NSRect: {{0, 0}, {2732.0000581881218, 2047.1787102689659}}, __C.UIImagePickerControllerInfoKey(_rawValue: UIImagePickerControllerEditedImage): 大小 {748, 560} 方向 0 比例 1.000000(_rawValue=] : UIImagePickerControllerMediaType): public.image, __C.UIImagePickerControllerInfoKey(_rawValue: UIImagePickerControllerOriginalImage): size {2732, 2048} orientation 0 scale 1.000000, __C.UIImagePickerControllerInfoKey(_rawValue: UIImagePickerControllerPHAsset): 54FE2CEF-59E7-4BCC-AF84-D64C1F32E58B/L0/001 mediaType=1/4, sourceType=1, (2732x2048), creationDate=2018-09-17 02:01:23 +0000, location=0, hidden=0, favorite=0 , __C.UIImagePickerControllerInfoKey (_rawValue: UIImagePickerControllerImageURL): file:///private/var/mobile/Containers/Data/Application/CD64C336-B5F1-48F6-9D54-504006ADD6E2/tmp/DD94F454-F3BE-4EF9-9F6F-0C90F61BEE19.jpeg]

Answer 1

是我缺乏编程思维。虽然我从照片库中选择了一张照片，但在 Activity 选择照片关闭后，viewWillAppear 会在 ImageView 上设置上一张图像。

我无法将照片库中的图像设置到 imageView，并出现错误 Error Domain=PlugInKit Code=13 “query cancelled”

I can't set image from photo library to imageView, and got error Error Domain=PlugInKit Code=13 “query cancelled”

ios

swift

photolibrary