[英]How to get access to deeply nested objects in Swift
I have this API response from FB Graph Request and am having trouble accessing beyond the "data" layer to get to name, description, start_time, id, etc.我有来自 FB Graph Request 的 API 响应,并且无法访问“数据”层之外的名称、描述、start_time、id 等。
({
events = {
data = (
{
description = "This is the description";
"end_time" = "2020-06-14T01:00:00-0400";
id = 234258508603994942;
name = "Event 1";
place = {
id = 102184499823699;
location = {
city = Montreal;
country = Canada;
latitude = "45.5038";
longitude = "-73.5744";
state = QC;
};
name = "Montreal, Quebec";
};
"rsvp_status" = attending;
"start_time" = "2020-06-11T22:00:00-0400";
},
{
description = "Doors open at 6pm All methods of delivery will be delayed;
id = 2456759751111373;
name = "John Oliver";
place = {
id = 203030439809517;
location = {
city = "San Francisco";
country = "United States";
latitude = "37.79118";
longitude = "-122.41293";
state = CA;
street = "1111 California St";
zip = 94108;
};
name = "The Masonic";
};
"rsvp_status" = unsure;
"start_time" = "2020-01-02T19:00:00-0800";
}
);
paging = {
cursors = {
after = QVFIUnlNRzFiTmwtQk9BRFVmN09OUkxHNWkxzQXNSOGJsWURQb21IdFFITHVXdU5xUC1jTTd5Tml5YVNiS3kyejNWYUk5czJ5dmtn;
before = QVFIUnE3TVA2S21VVVNNbXlDWGZA2ZAFZAUTXU5h0NGRBS0EtUHB6QWpJNURMU1Q5dTRQV2RhVWJlYS01U3RtdUh0RGcxaDlzOTIzNzF2eTln;
};
};
};
id = 2624126090194735;
})
Here's the code that isn't able to get to the "data" objects"这是无法访问“数据”对象的代码
if let dictionary = result as? [String: Any] {
if let dictionary1 = dictionary["events"] as? [String: Any]{
if let nestedDictionary = dictionary1["data"] as? [String: Any]{
let eventDescription = nestedDictionary["description"] as? String
let fbEventId = nestedDictionary["id"] as? String
let eventName = nestedDictionary["name"] as? String
let eventStart = nestedDictionary["start_time"] as? String
}
}
}
As I'm sure is obvious, this wont get into the "data" dictionary which is stopping my ability to get to the event details such as description, id, name, etc. How do I get access into "Data"?我确信很明显,这不会进入“数据”字典,这会阻止我获取事件详细信息(如描述、ID、名称等)的能力。我如何访问“数据”?
As mentioned in the comment by @RajeshKumar, data
is an array of dictionary.正如@RajeshKumar 的评论中提到的, data
是一个字典数组。 Then you can loop through that array to get each dictionary and related values as,然后您可以遍历该数组以获取每个字典和相关值,
if let dictionary = result as? [String: Any] {
if let dictionary1 = dictionary["events"] as? [String: Any]{
if let dataList = dictionary1["data"] as? [[String: Any]] {
dataList.forEach { dictionary in
let eventDescription = dictionary["description"] as? String
let fbEventId = dictionary["id"] as? String
let eventName = dictionary["name"] as? String
let eventStart = dictionary["start_time"] as? String
print(eventDescription)
print(fbEventId)
print(eventName)
print(eventStart)
}
}
}
}
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