To show 25 images randomly out of 40 images in a grid view

Question

I am creating an iphone app in which I need to create a grid view of 25 images. I am doing that by taking 25 images in an array, and displaying them by using for loop by changin

Answer 1

You essentially want to randomize the order of the images and then pick the first 25. I don't know exactly how you are arranging your data structures, but here is an example with integers:

for (int x = 39; x > 0; x--)
{
  int tmp = element[x];
  int newLoc = random()%(x+1);
  element[x] = element[newLoc];
  element[newLoc] = tmp;
}

I'm assuming that element contains your values that you want to mix up.