Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Simple iPhone App with Swift 2.0 Structs as Data Models Finishing Up Our Model

Posted by swiftlover
swiftlover
1,597 Points

Can we use arc4random_Uniform() here to get different fun facts each time the user presses the button?

Can we use arc4random_Uniform() here to get different fun facts each time the user presses the button?

3 Answers

Steven Deutsch
Steven Deutsch
21,046 Points
Steven Deutsch
Steven Deutsch
21,046 Points

Hey mayureshgavaskar,

You can find some information on this topic in the link below. I believe it can still be used but I haven't tested it myself.

https://teamtreehouse.com/community/how-do-you-generate-a-random-number-now-since-the-arc4randomuniform-does-not-exist-in-swift-2

Pranav Piyush
Pranav Piyush
2,135 Points
Pranav Piyush
Pranav Piyush
2,135 Points

yes, that works! tested it.

Christian McMullin
Christian McMullin
13,086 Points
Christian McMullin
Christian McMullin
13,086 Points

I did the app before the lesson and this is how I made my random number.

var funFacts = let facts = [ 
    "Ants stretch when they wake up in the morning.", 
    "Ostriches can run faster than horses.", 
    "Olympic gold medals are actually made mostly of 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 almost a meter in just one day.", 
    "The state of Florida is bigger than England.", 
    "Some penguins can leap 2-3 meters out of the water.", 
    "On average, it takes 66 days to form a new habit.", 
    "Mammoths still walked the Earth when the Great Pyramid was being built." ]

let randomNumber = Int(arc4random_uniform(UInt32(funFacts.count)))
var randomFact = funFacts[randomNumber]