Ios 获取此错误:nw_协议_获取_quic_映像_块_调用dlopen libquic失败
我试图连接我的API数据以在单元格中查看它,但似乎我无法得到响应,它总是==nil 下面的代码描述了Country.SWIFT//Model.SWIFT//Response.SWIFT,它显示了如何使用Codable获得JSON响应 CountryCell.SWIFT展示了我如何使用它来调用API API映像的链接: 国家。SWIFTIos 获取此错误:nw_协议_获取_quic_映像_块_调用dlopen libquic失败,ios,json,swift,codable,decodable,Ios,Json,Swift,Codable,Decodable,我试图连接我的API数据以在单元格中查看它,但似乎我无法得到响应,它总是==nil 下面的代码描述了Country.SWIFT//Model.SWIFT//Response.SWIFT,它显示了如何使用Codable获得JSON响应 CountryCell.SWIFT展示了我如何使用它来调用API API映像的链接: 国家。SWIFT struct Country: Decodable { var CountryName = "" var Count
struct Country: Decodable {
var CountryName = ""
var CountryImage = ""
var objectId = ""
// MARK: - Coding Keys
enum CodingKeys: String, CodingKey {
case CountryName = "CountryName"
case CountryImage = "CountryImage"
case objectId = "objectId"
}
//MARK: - Json Decoder
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
// Parsing our attributes
self.CountryName = try container.decode(String.self, forKey: .CountryName)
self.CountryImage = try container.decode(String.self, forKey: .CountryImage)
self.objectId = try container.decode(String.self, forKey: .objectId)
}
}]
protocol ModelDelegate {
func countriesFetched (_ countries: [Country])
}
class Model {
//MARK: - Vars
var delegate: ModelDelegate?
// MARK: - Get Countries
func getCountries () {
// URL Object
let url = URL(string: Constants.API_URL)
guard url != nil else {return}
// URL Session object
let session = URLSession.shared
//Data Task from URLSession object
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error != nil || data == nil {
print(error!.localizedDescription)
return
}
print(data!)
do {
let decoder = JSONDecoder()
let response = try decoder.decode(Response.self, from: data!)
if response.items != nil {
DispatchQueue.main.async {
self.delegate?.countriesFetched(response.items!)
}
}
}
catch {
}
}
// start data task
dataTask.resume()
}
}
struct Response: Decodable {
var items: [Country]? = []
init(from decoder: Decoder) throws {
var itemsContrainer = try decoder.unkeyedContainer()
self.items = try itemsContrainer.decode([Country].self)
}
}
class CountryCell: UICollectionViewCell {
//MARK: - Vars
var country: Country?
//MARK: - Outlets
@IBOutlet weak var imageViewCountryOutlet: UIImageView!
@IBOutlet weak var lblCountryNameOutlet: UILabel!
//MARK: - Creating Cell
func generateCell (_ myCountry: Country) {
self.country = myCountry
guard self.country != nil else { return }
lblCountryNameOutlet.text = country!.CountryName
guard self.country!.CountryImage != "" else {return}
let url = URL(string: self.country!.CountryImage)
guard url != nil else {return}
let session = URLSession.shared
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error == nil || data != nil {
if url!.absoluteString != self.country!.CountryImage {
return
}
let image = UIImage(data: data!)
DispatchQueue.main.async {
self.imageViewCountryOutlet.image = image
}
}
}
dataTask.resume()
}
}
型号。SWIFT
struct Country: Decodable {
var CountryName = ""
var CountryImage = ""
var objectId = ""
// MARK: - Coding Keys
enum CodingKeys: String, CodingKey {
case CountryName = "CountryName"
case CountryImage = "CountryImage"
case objectId = "objectId"
}
//MARK: - Json Decoder
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
// Parsing our attributes
self.CountryName = try container.decode(String.self, forKey: .CountryName)
self.CountryImage = try container.decode(String.self, forKey: .CountryImage)
self.objectId = try container.decode(String.self, forKey: .objectId)
}
}]
protocol ModelDelegate {
func countriesFetched (_ countries: [Country])
}
class Model {
//MARK: - Vars
var delegate: ModelDelegate?
// MARK: - Get Countries
func getCountries () {
// URL Object
let url = URL(string: Constants.API_URL)
guard url != nil else {return}
// URL Session object
let session = URLSession.shared
//Data Task from URLSession object
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error != nil || data == nil {
print(error!.localizedDescription)
return
}
print(data!)
do {
let decoder = JSONDecoder()
let response = try decoder.decode(Response.self, from: data!)
if response.items != nil {
DispatchQueue.main.async {
self.delegate?.countriesFetched(response.items!)
}
}
}
catch {
}
}
// start data task
dataTask.resume()
}
}
struct Response: Decodable {
var items: [Country]? = []
init(from decoder: Decoder) throws {
var itemsContrainer = try decoder.unkeyedContainer()
self.items = try itemsContrainer.decode([Country].self)
}
}
class CountryCell: UICollectionViewCell {
//MARK: - Vars
var country: Country?
//MARK: - Outlets
@IBOutlet weak var imageViewCountryOutlet: UIImageView!
@IBOutlet weak var lblCountryNameOutlet: UILabel!
//MARK: - Creating Cell
func generateCell (_ myCountry: Country) {
self.country = myCountry
guard self.country != nil else { return }
lblCountryNameOutlet.text = country!.CountryName
guard self.country!.CountryImage != "" else {return}
let url = URL(string: self.country!.CountryImage)
guard url != nil else {return}
let session = URLSession.shared
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error == nil || data != nil {
if url!.absoluteString != self.country!.CountryImage {
return
}
let image = UIImage(data: data!)
DispatchQueue.main.async {
self.imageViewCountryOutlet.image = image
}
}
}
dataTask.resume()
}
}
响应。SWIFT
struct Country: Decodable {
var CountryName = ""
var CountryImage = ""
var objectId = ""
// MARK: - Coding Keys
enum CodingKeys: String, CodingKey {
case CountryName = "CountryName"
case CountryImage = "CountryImage"
case objectId = "objectId"
}
//MARK: - Json Decoder
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
// Parsing our attributes
self.CountryName = try container.decode(String.self, forKey: .CountryName)
self.CountryImage = try container.decode(String.self, forKey: .CountryImage)
self.objectId = try container.decode(String.self, forKey: .objectId)
}
}]
protocol ModelDelegate {
func countriesFetched (_ countries: [Country])
}
class Model {
//MARK: - Vars
var delegate: ModelDelegate?
// MARK: - Get Countries
func getCountries () {
// URL Object
let url = URL(string: Constants.API_URL)
guard url != nil else {return}
// URL Session object
let session = URLSession.shared
//Data Task from URLSession object
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error != nil || data == nil {
print(error!.localizedDescription)
return
}
print(data!)
do {
let decoder = JSONDecoder()
let response = try decoder.decode(Response.self, from: data!)
if response.items != nil {
DispatchQueue.main.async {
self.delegate?.countriesFetched(response.items!)
}
}
}
catch {
}
}
// start data task
dataTask.resume()
}
}
struct Response: Decodable {
var items: [Country]? = []
init(from decoder: Decoder) throws {
var itemsContrainer = try decoder.unkeyedContainer()
self.items = try itemsContrainer.decode([Country].self)
}
}
class CountryCell: UICollectionViewCell {
//MARK: - Vars
var country: Country?
//MARK: - Outlets
@IBOutlet weak var imageViewCountryOutlet: UIImageView!
@IBOutlet weak var lblCountryNameOutlet: UILabel!
//MARK: - Creating Cell
func generateCell (_ myCountry: Country) {
self.country = myCountry
guard self.country != nil else { return }
lblCountryNameOutlet.text = country!.CountryName
guard self.country!.CountryImage != "" else {return}
let url = URL(string: self.country!.CountryImage)
guard url != nil else {return}
let session = URLSession.shared
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error == nil || data != nil {
if url!.absoluteString != self.country!.CountryImage {
return
}
let image = UIImage(data: data!)
DispatchQueue.main.async {
self.imageViewCountryOutlet.image = image
}
}
}
dataTask.resume()
}
}
CountryCell.SWIFT
struct Country: Decodable {
var CountryName = ""
var CountryImage = ""
var objectId = ""
// MARK: - Coding Keys
enum CodingKeys: String, CodingKey {
case CountryName = "CountryName"
case CountryImage = "CountryImage"
case objectId = "objectId"
}
//MARK: - Json Decoder
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
// Parsing our attributes
self.CountryName = try container.decode(String.self, forKey: .CountryName)
self.CountryImage = try container.decode(String.self, forKey: .CountryImage)
self.objectId = try container.decode(String.self, forKey: .objectId)
}
}]
protocol ModelDelegate {
func countriesFetched (_ countries: [Country])
}
class Model {
//MARK: - Vars
var delegate: ModelDelegate?
// MARK: - Get Countries
func getCountries () {
// URL Object
let url = URL(string: Constants.API_URL)
guard url != nil else {return}
// URL Session object
let session = URLSession.shared
//Data Task from URLSession object
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error != nil || data == nil {
print(error!.localizedDescription)
return
}
print(data!)
do {
let decoder = JSONDecoder()
let response = try decoder.decode(Response.self, from: data!)
if response.items != nil {
DispatchQueue.main.async {
self.delegate?.countriesFetched(response.items!)
}
}
}
catch {
}
}
// start data task
dataTask.resume()
}
}
struct Response: Decodable {
var items: [Country]? = []
init(from decoder: Decoder) throws {
var itemsContrainer = try decoder.unkeyedContainer()
self.items = try itemsContrainer.decode([Country].self)
}
}
class CountryCell: UICollectionViewCell {
//MARK: - Vars
var country: Country?
//MARK: - Outlets
@IBOutlet weak var imageViewCountryOutlet: UIImageView!
@IBOutlet weak var lblCountryNameOutlet: UILabel!
//MARK: - Creating Cell
func generateCell (_ myCountry: Country) {
self.country = myCountry
guard self.country != nil else { return }
lblCountryNameOutlet.text = country!.CountryName
guard self.country!.CountryImage != "" else {return}
let url = URL(string: self.country!.CountryImage)
guard url != nil else {return}
let session = URLSession.shared
let dataTask = session.dataTask(with: url!) { (data, response, error) in
if error == nil || data != nil {
if url!.absoluteString != self.country!.CountryImage {
return
}
let image = UIImage(data: data!)
DispatchQueue.main.async {
self.imageViewCountryOutlet.image = image
}
}
}
dataTask.resume()
}
}
请在
getCountries
方法中打印data
参数,您可以尝试此字符串(数据:data,编码:.utf8)代码>您最近更新到Xcode 12了吗?最后一个版本抛出libquic exceptionyeah似乎有问题,我已经这么做了