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iOS

Posted by Patrik Alam
Patrik Alam
2,332 Points

Anyone know how to randomize questions in a quiz game?

Hi everyone I'm currently trying to make a quiz game app for the iphone after learning the basics. I was wondering how do you put questions in a random order so each time you start the game a different question shows up? Thanks.

1 Answer

Aaron Daub
PLUS
Aaron Daub
Courses Plus Student 96 Points
Aaron Daub
Aaron Daub
Courses Plus Student 96 Points

Store the questions in an array: 

NSArray* questions = @[@"Question 1", @"Question 2", @"Question 3"];

Generate a random number:

NSInteger randomInteger = arc4random_uniform(questions.count);

Access a random question:

NSString* randomQuestion = questions[randomInteger];
Patrik Alam
Patrik Alam
2,332 Points

Thanks, but doesn't that only show the questions? I guess to be more clear in my question. I'm trying to basically randomize view controllers cuz each of them is a question. Does the concept go the same for that?

Aaron Daub
Aaron Daub
Courses Plus Student 96 Points

NSArray* arrayOfViewControllerClasses = @[[SomeViewController0 class], [SomeViewController1 class], [SomeViewController2 class]];

NSInteger randomInteger = arc4random_uniform(arrayOfViewControllerClasses.count);

UIViewController* viewController = [[arrayOfViewControllerClasses[randomInteger] alloc] init];
Patrik Alam
Patrik Alam
2,332 Points

Thanks so much. I'll try that.

Patrik Alam
Patrik Alam
2,332 Points

How do I connect a button for the randomize code to work?