CODEWITHSUNDEEP
swiftmacosnsarraynsdictionarynskeyedarchiver
narner
narner

Reputation: 3221

NSKeyedArchiver.archiveRootObject fails to save

I have a group of custom objects that I'm converting to NSMutableDictionary's, and then creating an array out of them (this part is currently working as expected).

I'm then attempting to save that array of data as a file using NSKeyedArchiver. However, the result of NSKeyedArchiver.archiveRootObject always returns false.

Below is my logic for saving - am I missing something obvious, or perhaps is this the wrong approach? Thank you!

    var groupsArray = [Any?]()

    for group in file!.groups{
        for obj in group.children {
            let objDict = obj.convertToDictionary()

            groupsArray.append(objDict)
        }
    }


    let documents: String = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
    let filePath: String = URL(fileURLWithPath: documents).appendingPathComponent("file.archive").absoluteString

    let save: Bool = NSKeyedArchiver.archiveRootObject(groupsArray, toFile: filePath)

EDIT: This also fails if trying to save to the .desktop or the .caches directories.

Upvotes: 0

Views: 1979

Answers (2)

arunjos007
arunjos007

Reputation: 4355

The issue here is .absoultestring. If the URL object contains a file URL, then we should use .path for working with FileManager or PathUtilities etc. So here replacing .absoultestring with .path will solve the issue

for more details about their difference please refer this answer

Upvotes: 1

Shezad
Shezad

Reputation: 756

try this method to save

1.Method returns filepath.

func filePath(key:String) -> String {
    let manager = FileManager.default
    let url = manager.urls(for: .documentDirectory, in: .userDomainMask).first
    return (url!.appendingPathComponent(key).path)
}

2.Code to save to a file using NSKeyedArchiver.

NSKeyedArchiver.archiveRootObject(groupsArray, toFile: filePath(key: "file.archive"))

Upvotes: 0

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