Question

我是编码的新手，非常感谢你的帮助。我到处搜索我的问题，但找不到对我有意义的问题。这是我的代码（错误位置注明）。提前谢谢！

import UIKit
import Firebase


class UserVC: UIViewController, UIImagePickerControllerDelegate,
    UINavigationControllerDelegate     {

@IBOutlet weak var userImagePicker: UIButton!
@IBOutlet weak var completeSignUpBtn: UIButton!

var userUid: String!
var emailField: String!
var passwordField: String!
var imagePicker: UIImagePickerController!
var imageSelected = false



override func viewDidLoad() {
    super.viewDidLoad()

    imagePicker = UIImagePickerController()
    imagePicker.delegate = self
    imagePicker.allowsEditing = true
}

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
    if let image = info[UIImagePickerControllerEditedImage] as? UIImage {
        userImagePicker.image = image **//error here**
        imageSelected = true
    }else {
        print("image wasn't selected")
    }
    imagePicker.dismiss(animated: true, completion: nil)
}

@IBAction func completeAccount (_ sender: Any){
    Auth.auth().createUser(withEmail: emailField, password: passwordField, completion:
        {(user, error) in
            if error != nil {
            print(error)

            }else{
                if let user = user {
                self.userUid = user.uid
                }
            }
        })
}

@IBAction func selectedImagePicker(_ sender: Any){
    present (imagePicker, animated: true, completion: nil)
}
@IBAction func cancel (_ sender: AnyObject){
    dismiss (animated: true, completion: nil)
}

}

Answer 1

您无法直接将图像分配给UIButton。按钮有不同的方法来设置图像。这是设置按钮图像的快速3示例代码。

let playButton  = UIButton(type: .custom)
playButton.setImage(UIImage(named: "play.png"), for: .normal)

所以试试这个

userImagePicker.setImage(image,for:.normal)

使用Xcode并获取错误“无法分配给属性：'image'是一种方法

1 个答案: