Question

我正在使用swift4开发ios应用程序。单击个人资料图像视图时，要在imageview上设置个人资料图像，我具有点击手势调用功能。

以下是我的代码。我按照快速指南使用扩展程序实现了选择器委托。

看到有关同一问题的多个文档，我想我做了我必须做的。但是我无法弄清楚错误，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)
}

}

什么会引起问题。

当我打印信息时，调试区域将显示如下。

[__ C.UIImagePickerControllerInfoKey（_rawValue：UIImagePickerControllerReferenceURL）：资产图书馆：//asset/asset.JPG？id = 54FE2CEF-59E7-4BCC-AF84-D64C1F32E58B＆ext = JPG，__C.UIImagePickerControllerInfoKey（_rawValue：UIImagePickerController {{0，0}，{2732.0000581881218，2047.1787102689659}}，__C.UIImagePickerControllerInfoKey（_rawValue：UIImagePickerControllerEditedImage）：大小{748，560}方向0缩放1.000000，__C.UIImagePickerControllerInfoInfoKey（_rawValue：UIImagePickerControllerMediaType）：public.Image，__C。（_rawValue：UIImagePickerControllerOriginalImage）：大小{2732，2048}方向0比例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：/// pr ivate / var / mobile /容器/数据/应用程序/CD64C336-B5F1-48F6-9D54-504006ADD6E2/tmp/DD94F454-F3BE-4EF9-9F6F-0C90F61BEE19.jpeg]

Answer 1

这是我缺乏编程思想的原因。尽管我从照片库中选择了一张照片，但是在“选择照片的活动”关闭后，viewWillAppear会在ImageView上设置上一张图像。

我无法将图片从图片库设置为imageView，并出现错误Error Domain = PlugInKit Code = 13“查询已取消”

1 个答案: