Hi
I want to get the get the value of "name" in the json body after decoding. So far I have managed to get the values of audio and video but not able to get the value of name, Any idea how to get the value?
Sharing a sample of the code
import Foundation
let json = """
{
"from": "Guille",
"text": "Look what I just found!",
"attachments": [
{
"name": "Test1",
"type": "image",
"payload": {
"url": "url1",
"width": 640,
"height": 480
}
},
{
"name": "Test2",
"type": "audio",
"payload": {
"title": "title1",
"url": "url2",
"shouldAutoplay": true,
}
},
{
"name": "Test3",
"type": "audio",
"payload": {
"title": "title2",
"url": "url3",
"shouldAutoplay": true,
}
}
]
}
""".data(using: .utf8)!
struct ImageAttachment: Codable {
let url: URL
let width: Int
let height: Int
}
struct AudioAttachment: Codable {
let title: String
let url: URL
let shouldAutoplay: Bool
}
enum Attachment {
case image(ImageAttachment)
case audio(AudioAttachment)
case name(String)
case unsupported
}
extension Attachment: Codable {
private enum CodingKeys: String, CodingKey {
case type
case name
case payload
}
enum CodingError: Error {
case unknownValue
}
init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
let name = try container.decode(String.self, forKey: .name)
print("decode",name)
self = .name(name)
let type = try container.decode(String.self, forKey: .type)
switch type {
case "image":
let payload = try container.decode(ImageAttachment.self, forKey: .payload)
self = .image(payload)
case "audio":
let payload = try container.decode(AudioAttachment.self, forKey: .payload)
self = .audio(payload)
default:
self = .unsupported
}
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
switch self {
case .image(let attachment):
try container.encode("image", forKey: .type)
try container.encode(attachment, forKey: .payload)
case .audio(let attachment):
try container.encode("audio", forKey: .type)
try container.encode(attachment, forKey: .payload)
case .name(let userName):
try container.encode(userName, forKey: .name)
case .unsupported:
let context = EncodingError.Context(codingPath: [], debugDescription: "Invalid attachment.")
throw EncodingError.invalidValue(self, context)
}
}
}
struct Message: Codable {
let from: String
let text: String
let attachments: [Attachment]
}
let decoder = JSONDecoder()
let message = try decoder.decode(Message.self, from: json)
print(message)
for attachment in message.attachments {
switch attachment {
case .image(let val):
print("image", val)
case .audio(let val):
print("audio",val)
case .name(let val):
print("name", val)
case .unsupported:
print("unsupported")
}
}
aamirkhan_7
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First I added 2 properties in the plist as
Support opening documents in place = YES
Application supports iTunes file sharing = YES
Then Created a button to upload the xml file
@IBAction func didTapUploadFile(_ sender: Any) {
let documentPicker = UIDocumentPickerViewController(documentTypes: [kUTTypeItem as String], in: .import)
documentPicker.delegate = self
documentPicker.allowsMultipleSelection = false
present(documentPicker, animated: true, completion: nil)
}
4. Added a extension as
extension ViewController: UIDocumentPickerDelegate {
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
guard let selectedFileUrl = urls.first else { return }
let dir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let sandboxFile = dir.appendingPathComponent(selectedFileUrl.lastPathComponent)
if FileManager.default.fileExists(atPath: sandboxFile.path) {
print("File Already\(config)")
} else {
do {
let contentFile = try NSString(contentsOf: selectedFileUrl, encoding: String.Encoding.utf8.rawValue)
config = contentFile as String
print("File Upload\(config)")
} catch {
print("Error \(error)")
}
}
}
}
In this case I'm able to upload a file but not unable to parse the file is there some way to parse the file and get the content inside the xml file