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我有一個顯示健康食譜的項目。該項目將JSON對象從Alamofire返回到Arraylist,然後返回Tableview中的Table Cell。當我將所有對象加載到tableview時,它會加載...很慢。 8+秒。但我的目標是3秒。我知道問題在於alamofire,因爲我檢查了打印(時間戳)。我做錯了什麼?Swift 2.0 + Alamofire 3.0 - 緩慢加載JSON
func getCookData(urlString: String , completionHandler: (String, String, String, String, String, String, String, String, String, String, String, String, String, String, String) ->()) ->(){
Alamofire.request(.GET, urlString).responseJSON() {
response in
// var cookArray:[CookData] = []
if response.result.isSuccess {
let data = response.result.value
let cookJson = JSON(data!)
for (var i = 0; i < cookJson["data"].count; i++){
let category = cookJson["data"][i]["kategorie"].stringValue
let nameOfRecipe = cookJson["data"][i]["nazev"].stringValue
let preparationTime = cookJson["data"][i]["priprava"].stringValue
let cookingTime = cookJson["data"][i]["vareni"].stringValue
let dificulty = cookJson["data"][i]["obtiznost"].stringValue
let count = cookJson["data"][i]["pocet"].stringValue
var ingredience = String()
for var j = 0; j < cookJson["data"][i]["ingredience"].count; j++ {
let ingredienceX = cookJson["data"][i]["ingredience"][j].stringValue
ingredience = ingredience + "\n" + "- " + ingredienceX
}
let nutriInfo = cookJson["data"][i]["nutricni_informace"].stringValue
let kcal = cookJson["data"][i]["nutricni_informace"]["Kcal"].stringValue
let bilkoviny = cookJson["data"][i]["nutricni_informace"]["Bílkoviny"].stringValue
let sacharidy = cookJson["data"][i]["nutricni_informace"]["Sacharidy"].stringValue
let tukyy = cookJson["data"][i]["nutricni_informace"]["Tuky"].stringValue
let preparationMekanism = cookJson["data"][i]["postup_pripravy"].stringValue
let photo = cookJson["data"][i]["photos"][0].stringValue
let thumb = cookJson["data"][i]["thumb"].stringValue
self.printTimestamp()
completionHandler(category, nameOfRecipe, preparationTime, cookingTime, dificulty, count, ingredience, nutriInfo, preparationMekanism, photo, thumb, kcal, bilkoviny, sacharidy, tukyy)
}
}
}
}
如果加載速度慢,您的互聯網連接速度慢:)如果治療速度慢,這是一個程序化或硬件問題。你能更精確嗎?模擬器類型,iOS目標,您自己的Mac模型... – StrawHara