CODEWITHSUNDEEP
iphonerandomview
user3298380
user3298380

Reputation:

How to display a random View?

I'm new to Objective-C. I created several SingleView's that display different content. I now need to create some code that will allow the user, when he presses the next button to get to a different, randomly picked, View. How can I do this?

Upvotes: 1

Views: 65

Answers (2)

danh
danh

Reputation: 62676

Or, for fingers tired of typing:

NSArray *viewControllers = @[vc1, vc2, vc3];
UIViewController *randomViewController = viewControllers[arc4random_uniform(viewControllers.count)];

Upvotes: 1

sangony
sangony

Reputation: 11696

Make sure you have imported all your View Controllers.

#import "ViewController0.h"
#import "ViewController1.h"
#import "ViewController2.h"

and so on. Then use this code for your button:

-(IBAction)myButtonMethod:(id)sender {
NSInteger randomNumber = arc4random() % 3; // generates a random number between 0 and 2

switch (randomNumber) {
    case 0:
        ViewController0 *vc = [[ViewController0 alloc] init];
        [[self navigationController] pushViewController:vc animated:YES];
        break;
    case 1:
        ViewController1 *vc = [[ViewController1 alloc] init];
        [[self navigationController] pushViewController:vc animated:YES];
        break;
    case 2:
        ViewController2 *vc = [[ViewController2 alloc] init];
        [[self navigationController] pushViewController:vc animated:YES];
        break;

    default:
        break;
    }
}

Modify the code to suit the number of VCs you want to include.

Upvotes: 0

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