我想將對象從dictionary
添加到array
。從字典到數組循環添加對象
我從JSON獲取信息,並且想要在這些信息中添加兩個鍵和兩個值:「name」:value1,「imageURL」:value2。
我在循環10個項目,所以我想這個代碼,但[]丟失:
let urlString = "https://api.unsplash.com/photos/?client_id=71ad401443f49f22556bb6a31c09d62429323491356d2e829b23f8958fd108c4"
let url = URL(string: urlString)!
let urlRequest = URLRequest(url: url)
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
var arr = [String]()
let task = session.dataTask(with: urlRequest, completionHandler: { (data, response, error) in
// do stuff with response, data & error here
if let statusesArray = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? [[String: Any]] {
for item in statusesArray! {
let photos = item["urls"] as? [String: Any]
let photo = photos?["small"] as? String
var myDictionary = [
"name": "test",
"imageURL": photo]
for (key, value) in myDictionary {
arr.append("\(key): \(value)")
}
}
print(arr)
}
})
,讓我:
["imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test", "imageURL: https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name: test"]
現在,我想有(在循環中的每個對象添加[]]:
[["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"], ["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"], ["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"], ["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"], ["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"], ["imageURL": "https://images.unsplash.com/photo-1479859752262-6f02b79ad6ad?ixlib=rb-0.3.5&q=80&fm=jpg&crop=entropy&cs=tinysrgb&w=400&fit=max&s=a613971b6da0b305154e37bbe01ed833", "name": "test"]]
我該如何解決這個問題?
你的問題使**沒有**感。你說你有一本字典,但看起來你有一本字典。你說你想要輸出是一個數組。您的代碼看起來像構建了一個字符串數組,但是您的輸出看起來更像是一個單獨的長字符串。 –
@DuncanC除非我誤解,我相信他希望輸出是一個充滿字典的數組。只是基於「我想擁有」文本。但我可能會誤認爲!我經常是。 – user3353890
爲什麼你不只是'arr.append(myDictionary)'? – njzk2