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

Nadia Matin
Nadia Matin
1,976 Points

Why is my app not running?

My code is not working, I have no idea why and I'd greatly appreciate if someone could help me: View Controller-

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var funFactLabel: UILabel!

let factBook = FactBook()

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    funFactLabel.text = factBook.randomFact()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func showFunFact() {
    funFactLabel.text = factBook.randomFact()
}

}

factBook:

import Foundation

struct FactBook {

let factsArray = [
    "Ants strech when they wake up in the morning.",
    "Ostriches can run faster than horses.",
    "Olympic gold metals are actually made of mostly silver.",
    "You are born with 300 bones; by the time you are an adult, you will have 206.",
    "It takes about 8 minutes for light from the Sun to reach Earth.",
    "Some bamboo plants can grow up to a meter in a day.",
    "Some penguins can leap 2-3 meters out of the water.",
    "The state of Florida is bigger than England.",
    "On average, it takes 66 days to form a new habit.",
    "Mammoths still walked the earth when the Great Pyramid was being build."
]

func randomFact() -> String {
    let unsignedArrayCount = UInt32(factsArray.count)
    let unsignedRandomNumber = arc4random_uniform(unsignedArrayCount)
    let randomNumber = Int(unsignedRandomNumber)

    return factsArray[randomNumber]

}

}

4 Answers

Vanessa Cantero G贸mez
Vanessa Cantero G贸mez
7,376 Points

Hi Nadia, can you paste here the console output? And also, what do you mean with not working? Can you explain more?

Nadia Matin
Nadia Matin
1,976 Points

Hi Vanessa, my console output is this:

self FunFacts.FactBook
unsignedArrayCount UInt32 24 24 unsignedRandomNumber UInt32 69314379 69314379 randomNumber Int 140734730484240 140734730484240

By not working I mean xCode says the build is successful then does not display the build on the simulator and does not give me specific errors.

Vanessa Cantero G贸mez
Vanessa Cantero G贸mez
7,376 Points

I just created a project with this code and it works fine. I have no idea what you are missing. Do you mind to upload your code somewhere so I can help you?

Nadia Matin
Nadia Matin
1,976 Points

I just closed xCode, and reopened it. When I ran the code again, it worked fine. Sorry to bother you, I honestly don't know what was going wrong earlier, but it's working now. Thank you so much for your help though!

Vanessa Cantero G贸mez
Vanessa Cantero G贸mez
7,376 Points

Go home Xcode, you're drunk.

No worries, happy to help =).