CODEWITHSUNDEEP
nsdictionaryswift2ios9
Robert Brusa
Robert Brusa

Reputation: 322

reading a plist-file into a NSDictionary using Swift 2 in iOS 9

I have a defined a class that reads in a Dictionary from a file:

import Foundation
class Orte_c {
    var meineOrte = NSDictionary()

    init() {
        if let path = NSBundle.mainBundle().pathForResource("mySites",             ofType: "plist") {
        let x = NSDictionary(contentsOfFile: path)
        meineOrte = x!
    }
}
} // end Orte_c

The plist-file was created by an objective-c app and is a dictionary where key and value are strings. This seems to work, but when I attempt to access the contents of this dictionary I get keys that read Optional(mykeytext) instead of only mykeytext . When looking up the value corresponding to a key, I get Optional(myvaluestring) instead of only myvaluestring. Hence my question: How do I get rid of this Optional()-clause? Its definitely not in my plist-file.

@IBAction func meinTest(sender: AnyObject) {
    let x = mO.meineOrte    // mO is defined as var mO = Orte_c()
    print("x includes \(x.count) elements")
    var key: String; var vs: String;
    let enumerator: NSEnumerator = x.keyEnumerator()
    key = String(enumerator.nextObject())
    while key != "nil" {
        vs = String(x.valueForKey(key))
        print("key:" + key + " size:\(key.characters.count)" + " value:" + vs )
        key = String(enumerator.nextObject())
    }
}

The obvious would be to use key! and/or vs! - but this produces compilation errors.

Upvotes: 0

Views: 257

Answers (1)

vadian
vadian

Reputation: 285072

Swift has more effective ways to enumerate a dictionary

let x = mO.meineOrte as! [String:String]  // mO is defined as var mO = Orte_c()
print("x includes \(x.count) elements")
for (key, value) in x {
  print("key:" + key + " value:" + value )
}

Upvotes: 2

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