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iOS Build a Simple iPhone App with Swift Creating a Data Model Finishing Up Our Model

Stanley Gao
Stanley Gao
3,889 Points
Posted by Stanley Gao
Stanley Gao
3,889 Points

How to link two arrays in a struct together?

I'm trying to modify the Fun Fact app a little bit and I run into some problem.

In the new app, I want to wrote two arrays in the struct, one facts and one descriptions. For each fact there is a specific description assigned to it.

However, the problem comes. I can still randomize from the fact arrays but what about the description.

I have some conceptual idea but I'm not sure how to code them, for instance:

  1. Randomize number first, with a given number I can print out two arrays with the same number.

  2. Maybe I can do something before the method? Like assigning a description to each fact?

1 Answer

kirkbyo
kirkbyo
15,791 Points
kirkbyo
kirkbyo
15,791 Points

Hey Stanley,

I was having the same problem with a random quotes app that I just submitted to the app store. I decided to use a plist and store all my quotes with there authors name inside the new plist file. Here is the code I used

    var word: String = ""
    var definition: String = ""

    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {

        // Generates a random number
        func randomNumber(arrayLength: Int) -> Int {
            var unsignedArrayCount = UInt32(arrayLength)
            var unsignedRandomNumber = arc4random_uniform(unsignedArrayCount)
            var randomNumber = Int(unsignedRandomNumber)

            return randomNumber
        }

        // Importing plist File
        let quotePath = NSBundle.mainBundle().pathForResource("yourPlistName", ofType: "plist")
        let dictionary: NSDictionary = NSDictionary(contentsOfFile: quotePath!)!
        let wordDictionary: Dictionary = dictionary
        let wordStringArray = [String](map(wordDictionary.keys) { $0 as AnyObject as String })

        // Selects Quote
        let chosenWord = wordStringArray[randomNumber(wordDictionary.count)]
        let chosenDefinition = wordDictionary[chosenWord] as NSString as String

        // Assigns Quote & Author to IBOutlet
        word = chosenWord
        definition = chosenDefinition

        wordLabel.text = word
        definitionLabel.text = definition
    }

I hope this helped, if you have any other questions don't hesitate to ask!

Ozzie