我正在解码JSON,然后创建了completeHandler函数,以便能够在项目中的任何位置获取JSON解析的属性。但是,当我调用该函数并仅打印所需的属性时,我将它们全部合并在一起,而不是调用了该属性。
例如:我叫beer.name,所以当我打印出来时,我得到了解码的Struct中包含的所有属性和值。我究竟做错了什么?我需要将这些值分开以能够填充UITableView以及其他组件。
ViewController
override func viewDidLoad() {
super.viewDidLoad()
getApiData { (cerveja) in
for beer in cerveja {
print(beer.name!)
}
}
}
这就是我在下面的通话中所得到的:
[HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Buzz"), abv: 4.5, image_url: "https://images.punkapi.com/v2/keg.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Trashy Blonde"), abv: 4.1, image_url: "https://images.punkapi.com/v2/2.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Berliner Weisse With Yuzu - B-Sides"), abv: 4.2, image_url: "https://images.punkapi.com/v2/keg.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Pilsen Lager"), abv: 6.3, image_url: "https://images.punkapi.com/v2/4.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Avery Brown Dredge"), abv: 7.2, image_url: "https://images.punkapi.com/v2/5.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Electric India"), abv: 5.2, image_url: "https://images.punkapi.com/v2/6.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("AB:12"), abv: 11.2, image_url: "https://images.punkapi.com/v2/7.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Fake Lager"), abv: 4.7, image_url: "https://images.punkapi.com/v2/8.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("AB:07"), abv: 12.5, image_url: "https://images.punkapi.com/v2/9.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Bramling X"), abv: 7.5, image_url: "https://images.punkapi.com/v2/10.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Misspent Youth"), abv: 7.3, image_url: "https://images.punkapi.com/v2/keg.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Arcade Nation"), abv: 5.3, image_url: "https://images.punkapi.com/v2/12.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Movember"), abv: 4.5, image_url: "https://images.punkapi.com/v2/13.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Alpha Dog"), abv: 4.5, image_url: "https://images.punkapi.com/v2/14.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Mixtape 8"), abv: 14.5, image_url: "https://images.punkapi.com/v2/15.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Libertine Porter"), abv: 6.1, image_url: "https://images.punkapi.com/v2/16.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("AB:06"), abv: 11.2, image_url: "https://images.punkapi.com/v2/17.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Russian Doll – India Pale Ale"), abv: 6.0, image_url: "https://images.punkapi.com/v2/18.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Hello My Name Is Mette-Marit"), abv: 8.2, image_url: "https://images.punkapi.com/v2/19.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Rabiator"), abv: 10.27, image_url: "https://images.punkapi.com/v2/keg.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Vice Bier"), abv: 4.3, image_url: "https://images.punkapi.com/v2/keg.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Devine Rebel (w/ Mikkeller)"), abv: 12.5, image_url: "https://images.punkapi.com/v2/22.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Storm"), abv: 8.0, image_url: "https://images.punkapi.com/v2/23.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("The End Of History"), abv: 55.0, image_url: "https://images.punkapi.com/v2/24.png"), HakerRank___Bruno_Vavretchek.Cerveja(name: Optional("Bad Pixie"), abv: 4.7, image_url: "https://images.punkapi.com/v2/25.png")]
我真正需要的是所有名称或abv或image_url的
模型文件夹:
struct Cerveja:Decodable{
let name:String?
let abv:Double
let image_url:String
}
网络文件夹:
func getApiData(completion: @escaping ([Cerveja]) -> ()){
guard let urlString = URL(string: "https://api.punkapi.com/v2/beers") else {
print("URL Error")
return
}
Alamofire.request(urlString).responseJSON { response in
if response.data == response.data{
do{
let decoder = try JSONDecoder().decode([Cerveja].self, from: response.data!)
print(decoder)
}catch{
print(error)
}
}else{print("API Response is Empty")}
}
}
答案 0 :(得分:0)
您当前的附件日志来自
print(decoder)
不是来自for循环,请对其进行注释并尝试,您甚至不返回完成情况
func getApiData(completion: @escaping ([Cerveja]) -> ()){
guard let urlString = URL(string: "https://api.punkapi.com/v2/beers") else {
print("URL Error")
return
}
Alamofire.request(urlString).responseJSON { response in
if response.data == response.data{
do{
let decoder = try JSONDecoder().decode([Cerveja].self, from: response.data!)
// print(decoder)
completion(decoder) // here
}
catch{
print(error)
}
}else{print("API Response is Empty")}
}
}
答案 1 :(得分:0)
实际上,您正在打印“解码器”。您必须这样写:
func getApiData(completion: @escaping ([Cerveja]) -> ()){
guard let urlString = URL(string: "https://api.punkapi.com/v2/beers") else {
print("URL Error")
return
}
Alamofire.request(urlString).responseJSON { response in
if let data = response.data{
do{
let decoder = try JSONDecoder().decode([Cerveja].self, from: data)
completion(decoder)
}catch{
print(error)
}
}else{print("API Response is Empty")}
}
}
避免强行打开包装。因此,使用
if let data = response.data{
// Some code
}
然后您可以在viewDidLoad()中打印它
override func viewDidLoad() {
super.viewDidLoad()
getApiData { (cerveja) in
for beer in cerveja {
print(beer.name!)
}
}
}
答案 2 :(得分:0)
创建模型数组>
// re-indexing $datalist since in your example it is not 0-indexed
$datalist = array_values($datalist);
foreach ($response->monitors as $index=>$monitors) {
if(isset($monitors->id)){
echo
'<tr>
<td><i class="fas fa-globe"></i> '.$monitors->friendly_name.'</td>';
echo '<td>'.$datalist[$index][2].'</td>';
echo '<td>'.$monitors->url.'</td>
<td>'.$monitors->status.'</td>
</tr>';
}
}
现在准备使用控制器并在tableView单元中使用。
var arrBeer: [Cerveja]()
override func viewDidLoad() {
super.viewDidLoad()
getApiData { (cerveja) in
arrBeer = cerveja // you save all your model objects in this array
}
}
希望这对您有所帮助。