Question

request = Alamofire.request(.GET, recipe.foodImageUrl!).validate(contentType: ["image/*"]).response(completionHandler: { request, response, data, err in
       if err == nil {
            let img = UIImage(data: data!)!
            self.foodRecipeImg.image = img
            FeedVC.imageCache.setObject(img, forKey: recipe.foodImageUrl!)

        }
 })

运行此代码时，会出现一个错误，表示调用中有一个额外的参数。在查看其他答案后，我仍然无法找到解决方案。

Answer 1

试试这个：

Alamofire 3：

let strURL = recipe.foodImageUrl ! as String

    Alamofire.request(.GET, strURL).response { (request, response, data, error) in
         if error == nil {
                let img = UIImage(data: data!)!
                self.foodRecipeImg.image = img
                FeedVC.imageCache.setObject(img, forKey: recipe.foodImageUrl!)

            }
    }

Alamofire 4.0：

Alamofire.request(strURL).response { response in // method defaults to `.get`
    if error == nil {
                    let img = UIImage(data: data!)!
                    self.foodRecipeImg.image = img
                    FeedVC.imageCache.setObject(img, forKey: recipe.foodImageUrl!)

                }

}

Answer 2

请尝试此变体。（更新）

request = Alamofire.request(recipe.foodImageUrl!) 
  .response { 
    response in 
    let img = UIImage(data: response.data!)! 
    self.foodRecipeImg.image = img 
    FeedVC.imageCache.setObject(img, forKey: recipe.foodImageUrl!) 
  }

Alamofire.request函数返回一个错误，该错误表示＆＃34;呼叫中的额外参数＆＃34;

2 个答案: