Question

I’m trying to get a random number generator working on the iPhone. There are two text fields a label and a button. Enter the minimum number in one textfield and the maximum in the next. Clicking the button will display the random number in the UILabel. I did this once before and can’t figure it out for the life of me today. Any code or places I could visit to find this out would be fantastic.

Thanks

Answer 1

NSString *min = myMinTextField.text; //Get the current text from your minimum and maximum textfields.
NSString *max = myMaxTextField.text;

int randNum = rand() % ([max intValue] - [min intValue]) + [min intValue]; //create the random number.

NSString *num = [NSString stringWithFormat:@"%d", randNum]; //Make the number into a string.

[myLabel setText:num]; // Give your label the value of the string that contains the number.

Update:

It appears that it is probably better to use arc4random as opposed to rand you can see more about it here. Just replace all the rands with arc4random