EXC_BAD_INSTRUCTION與Swift

我在玩Swift，我有一個奇怪的問題來運行我的項目。EXC_BAD_INSTRUCTION與Swift

我有兩個類：homeViewController和照片。

這是主代碼：

homeViewController：

class homeViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UITextViewDelegate, UITextFieldDelegate, UITableViewDelegate, UITableViewDataSource{ 
// .... some code... 
func publishPhoto(){ 

     var photo = Photo() 

     // Establecemos el loading 
     photoDesc.resignFirstResponder() 
     let loading = MBProgressHUD.showHUDAddedTo(self.view, animated: true) 
     loading.mode = MBProgressHUDModeDeterminate 
     loading.labelText = "Un segundo por favor..."; 

     var imageData = UIImageJPEGRepresentation(photoInfo["UIImagePickerControllerOriginalImage"] as UIImage, 100.0) 

     photo.addPhoto() 

     MBProgressHUD.hideAllHUDsForView(self.view, animated: true) 

    } 
// .... some code .... 
}

照片

import Foundation 
import UIKit 

class Photo: UIViewController{ 

    func addPhoto(){ 

     var homeCtrl = homeViewController() 

     homeCtrl.photoDesc.resignFirstResponder() 

     var imageData = UIImageJPEGRepresentation(homeCtrl.photoInfo["UIImagePickerControllerOriginalImage"] as UIImage, 100.0) 

     let manager = AFHTTPRequestOperationManager() 
     manager.requestSerializer.setValue("608c6c08443c6d933576b90966b727358d0066b4", forHTTPHeaderField: "X-Auth-Token") 
     var parameters = ["user":"admin","password":"123456", "image" : imageData] 
     manager.POST("http://misdemos.dev/simpleApi/prueba", 
      parameters: parameters, 
      success: { (operation: AFHTTPRequestOperation!, responseObject: AnyObject!) in 
       println("JSON: " + responseObject.description)   }, 
      failure: { (operation: AFHTTPRequestOperation!,error: NSError!) in 
       println("Error: " + error.localizedDescription) 
      }) 

    } 

}

，我發現了錯誤EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)這一行：

manager.requestSerializer.setValue（「608c6c08443c6d933576b90966b727358d0066b4」， forHTTPHeaderField：「X-驗證令牌」）

如果我把addPhoto（）直接在homeViewController.publishPhoto它的工作原理代碼...

這是我第一次與iOS，我不知道我做錯了什麼。

來源

2014-06-10 Klian

順便說一句：EXC_BAD_INSTRUCTION幾乎總是由標準庫斷言失敗發出的。斷言故障故意發出錯誤的CPU指令來暫停程序。您經常會看到它們由於對象沒有正確設置而導致它們爲零。 –

可能會嘗試在Beta 3下運行，現在有一些控制檯消息會導致此問題。在我的情況下，可可方法返回一個隱式解包的可選（Type！的返回類型），您不必檢查，但仍可能爲零。 –

嘗試在設置標題字段之前創建requestSerializer和responseSerializer。

例如JSON序列：

manager.requestSerializer = AFJSONRequestSerializer() 
manager.responseSerializer = AFJSONResponseSerializer()

另一種選擇是這樣的創建要求：

let request: NSMutableURLRequest = NSMutableURLRequest(URL: "http://misdemos.dev/simpleApi/prueba") 
request.setValue("608c6c08443c6d933576b90966b727358d0066b4", forHTTPHeaderField: "X-Auth-Token")  
let operation: AFHTTPRequestOperation = AFHTTPRequestOperation(request: request)  

// e.g. response is json 
operation.responseSerializer = AFJSONResponseSerializer() 
operation.setCompletionBlockWithSuccess(...) 

operation.start()

來源

2014-06-11 11:01:20

EXC_BAD_INSTRUCTION與Swift

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