此代码获取 JSON 数据并显示在该代码所在的 View Controller 上。我试图弄清楚如何在另一个 View Controller 上使用此页面的结果，这将是我试图获取要显示的代码结果的下面第二个 View Controller 的大部分代码。
func paraseData()
{
fetchedFiName = []
let url = ""
var request = URLRequest(url: URL(string: url)!)
request.httpMethod = "GET"
let configuration = URLSessionConfiguration.default
let session = URLSession(configuration: configuration, delegate: nil, delegateQueue: OperationQueue.main)
let task = session.dataTask(with: request) { (data, response, error) in
if error != nil {
print("Error")
}
else{
do{
let fetchedData = try JSONSerialization.jsonObject(with: data!, options: .mutableLeaves) as! NSArray
//print(fecthdata)
for eachFetchedfiName in fetchedData {
let eachfiName = eachFetchedfiName as! [String :Any]
let fiName = eachfiName["financial_institution"] as! String
let oneYear = eachfiName["one_year"] as! String
let twoYear = eachfiName["two_year"] as! String
let threeYear = eachfiName["three_year"] as! String
let fourYear = eachfiName["four_year"] as! String
let fiveYear = eachfiName["five_year"] as! String
self.fetchedFiName.append(rates(fiName: fiName, oneYear: oneYear, twoYear: twoYear, threeYear: threeYear, fourYear: fourYear, fiveYear: fiveYear))
}
//print(self.fetchedFiName)
self.mtgRates.reloadData()
}
catch{
print("Error 2")
}
}
}
task.resume()
}
}
class rates {
var fiName: String
var oneYear: String
var twoYear: String
var threeYear: String
var fourYear: String
var fiveYear: String
init(fiName: String, oneYear: String, twoYear: String, threeYear: String, fourYear: String, fiveYear: String) {
self.fiName = fiName
self.oneYear = oneYear
self.twoYear = twoYear
self.threeYear = threeYear
self.fourYear = fourYear
self.fiveYear = fiveYear
}
}
这是我试图将结果传递给第二个 View Controller 的代码。我正在尝试使用 JSON 数据中的贷方名称填充 pickerview...我已经为这个问题苦苦挣扎了好几天...请思考。
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return fetchedFiName[row].fiName
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return fetchedFiName.count
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
lenderName.text = fetchedFiName[row].fiName
self.view.endEditing(false)
}
最佳答案
Investigate续集。离开当前 View Controller 时，您可以在目标 View Controller 上设置一个值。代码看起来像:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let destinationViewController = segue.destination as! YourViewController
destinationViewController.json = yourJSONObj
}
关于ios - 解析 View Controller 之间的 JSON 数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44146720/