UIImagePicker 无法正常运行

Question

我试图让用户更改他们的个人资料照片并将其保存到 Firebase 中。我构建了代码并且我的应用程序运行了。但是，我看不到更改个人资料图片的功能。我的代码如下：

import UIKit
import Firebase

class EditProfileVC: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()

        view.addSubview(profileImageView)
        setupProfileImageView()

        self.view.backgroundColor = UIColor.white
    }

    func setupProfileImageView() {
        profileImageView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
        profileImageView.topAnchor.constraint(equalTo: self.view.topAnchor, constant: 100).isActive=true
        profileImageView.widthAnchor.constraint(equalToConstant: 150).isActive = true
        profileImageView.heightAnchor.constraint(equalToConstant: 150).isActive = true
    }

    let profileImageView: UIImageView = {
        let imageView = UIImageView()
        imageView.image = UIImage(named: "users")
        imageView.translatesAutoresizingMaskIntoConstraints = false
        imageView.contentMode = .scaleAspectFill

        imageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectProfileImageView)))
        imageView.isUserInteractionEnabled = true
        return imageView
    }()
}

我还创建了一个处理 imagePicker 的扩展文件：

import UIKit

extension EditProfileVC: UIImagePickerControllerDelegate, UINavigationControllerDelegate{
    @objc func handleSelectProfileImageView() {
        let picker = UIImagePickerController()
        picker.delegate = self
        picker.allowsEditing = true

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

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        print(info)
    }

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

    func imagePickerController(picker: UIImagePickerController,
                               didFinishPickingMediaWithInfo info: [String :   AnyObject])
        {
        if let img = info[UIImagePickerControllerOriginalImage] as? UIImage       {

            profileImageView.image = img
        }
    }
}

是不是我没有正确插入某些东西，或者我是否遗漏了一段关键代码？

Answer 1

从您的代码开头删除此代码块，因为它与 1 个大写字母重复，而且我认为您正在将图像分配给重复的一个。

let ProfileImageView: UIImageView = {
let imageView = UIImageView()
imageView.image = UIImage(named: "users")
imageView.translatesAutoresizingMaskIntoConstraints = false
return imageView
}()

Answer 2

我在我的项目中使用了类似的东西。

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any])
{
    var selectedImageFromPicker: UIImage?

    if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage {
        selectedImageFromPicker = editedImage

    } else if let originalImage = info["UIImagePickerControllerOriginalImage"] as? UIImage {
        selectedImageFromPicker = originalImage

    }
    if let selectedImage = selectedImageFromPicker {
        userImg = selectedImage

    }
    userImageView.image = userImg
    dismiss(animated: true, completion: nil)
}

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

UIImagePicker 无法正常运行

UIImagePicker not functioning properly

uiimagepickercontroller

firebase

swift