UIWebview-Absturz mit Fehler: EXC_BREAKPOINT (CODE = EXC_I386_BPT, SUBCODE = 0X0)

Question

Mein Programm stürzt jedes Mal ab, wenn der Compiler versucht, eine Webansicht zu erstellen, nachdem einige Daten vom Json-Objekt abgerufen wurden. Es ist mit diesem Fehler abgestürzt:

EXC_BREAKPOINT (CODE=EXC_I386_BPT, SUBCODE = 0X0)

Hinweis: jedes anderes Objekt (UIlabel, UIButton, UItextfield usw.) erfolgreich ohne das Programm abstürzt erstellt wird, nur die UIWEBView bewirkt, dass das Programm zum Absturz bringen.

Hier ist der Code:

getdata(){ (boolValue) ->() in 
     self.loadimg() 
     self.reloadInputViews() 
     SwiftLoading().hideLoading() 
    } 
} 

func loadimg() 
{ 
    for L in 0..<Basketpic.count{ 

     var webv = UIWebView() 
     let link = NSURL(string:Basketpic[L]) 
     let requestObj = NSURLRequest(url: link! as URL) as URLRequest 
     webv.loadRequest(requestObj) 
     webv.contentMode = .scaleToFill 
     webv.frame = CGRect(x: 280 , y:100 + (120 * L), width: 90, height: 100) 

     /*let webv = UIWebView() 
     let link = NSURL(string:Basketpic[L]) 
     let requestObj = NSURLRequest(url: link! as URL) as URLRequest 
     webv.loadRequest(requestObj) 
     webv.contentMode = .scaleToFill 
     webv.frame = CGRect(x: 280 , y:100 + (120 * L), width: 90, height: 100)*/ 

     /*let name = UILabel() 
     name.text = (BasketNames[L]) 
     name.contentMode = .scaleToFill 
     name.frame = CGRect(x: 140 , y: 100 + (120 * L), width: 150, height: 100) 

     let price = UILabel() 
     price.text = (String(BasketPrices[L])) 
     price.contentMode = .scaleToFill 
     price.frame = CGRect(x: 55 , y: 100 + (120 * L), width: 100, height: 100)*/ 

     // view.addSubview(name) 
     // view.addSubview(price) 
     // view.addSubview(webv) 
    } 

    /* let sum = BasketPrices.reduce(0, +) 
    let total = UILabel() 
    total.text = (String(sum)) 
    total.contentMode = .scaleToFill 
    let L = BasketPrices.count 
    total.frame = CGRect(x: 55 , y: 100 + (120 * L), width: 100, height: 100) 

    let totall = UILabel() 
    totall.text = ("المجموع الكلي") 
    totall.contentMode = .scaleToFill 
    totall.frame = CGRect(x: 155 , y: 100 + (120 * L), width: 100, height: 100) 

    view.addSubview(totall) 
    view.addSubview(total) */ 
} 

func getdata(completion: @escaping (_ result: Bool)->()) 
{ 
    let listUrlString = "http://burjuman.net/kkkls/basketreview.php" 
    let myUrl = URL(string: listUrlString); 
    var request = URLRequest(url:myUrl!) 
    request.httpMethod = "GET"; 

    let task = URLSession.shared.dataTask(with: request as URLRequest) { 
     data, response, error in 
     do { 
      let json = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! [String:AnyObject] 
      if let result = json["result"] as? [[String: AnyObject]] { 
       for blog in result { 
        if let basket = blog["basket"] as? String { 
         if let id = blog["id"] as? String { 
          if let userid = blog["User_Id"] as? String { 
           if(userid == "75") 
           { 
            Basketpic.append(basket) 
            print(userid) 
            print(id) 
            print(basket) 
           } 
          } 
         } 
        } 
       } 
      } 
     } catch { 
      print("error serializing JSON: \(error)") 
     } 
     print(Basketpic) 
     completion (true) 
    } 
    task.resume() 
} 

Answer 1

nach einer Anfrage UI-Element anzuzeigen, benötigen Sie zu verwenden:

(In swift3)

DispatchQueue.main.async { 
    /* What you want to display, update label, show webview */ 
}