WKWebview如何处理上传图片？

Question

我已经使用 webkit 在我的应用程序上显示 url。

当我点击图像按钮（中的绿色按钮）时，它显示相机或照片库。问题是，当单击 Use photo 时，webkit 自动刷新而不是显示在页面上

我已经在plist文件中赋予照片使用、媒体、相机权限

我的密码是

import UIKit
import WebKit
import Alamofire

class ContinueViewController: UIViewController, WKUIDelegate {

    @IBOutlet weak var activityView: UIActivityIndicatorView!
    @IBOutlet weak var webview: WKWebView!

    func getPostString(params:[String:Any]) -> String{
            var data = [String]()
            for(key, value) in params
            {
                data.append(key + "=\(value)")

            }
            return data.map { String([=10=]) }.joined(separator: "&")
    }

    var url: URL?
    var traderCategoryId = 0, tradeSkillId = 0
    
    override func viewDidLoad() {
        super.viewDidLoad()
        webview.navigationDelegate = self
        self.navigationController?.navigationBar.isHidden = false
        webview.uiDelegate = self
    }

    override func viewWillAppear(_ animated: Bool) {
        
        super.viewWillAppear(animated)
        activityView.startAnimating()
        guard let url = self.url else { return }
        var req = URLRequest(url: url)

        let params = ["id" : id,"trader_skills" : tradeSkillId]
        let postString = self.getPostString(params: params)
        req.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")

        req.httpMethod = "POST"
        req.httpBody = postString.data(using: .utf8)

        self.webview.load(req)
    }
}

extension ContinueViewController: WKNavigationDelegate {
    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        activityView.stopAnimating()
    }
}

extension UIImagePickerController {
    open override func viewDidLoad() {
        super.viewDidLoad()
      //  self.modalPresentationStyle = .fullScreen
    }
}

Answer 1

issue is, when click Use photo, the webkit refresh automatically instead showing on page

因为你self.webview.load(req)在

override func viewWillAppear(_ animated: Bool) {

显示相机或照片库，然后return到此页面

func viewWillAppear又打来电话

self.webview.load(req) 再次打来电话

简单点，

将self.webview.load(req)相关内容放入

override func viewDidLoad() {

WKWebview如何处理上传图片？

How to Handle Image uploading in WKWebview?

ios

swift

webkit

wkwebview