Question

I am trying to get the count of an array and add it by 1 in an if statement and it does not seem to work. It causes a crash. Is this the right way to do it or am I doing something wrong?

if (currentPicture == [pictureArray count] +1) {
    currentPicture = 0;
}

Answer 1

NSArray‘s range is from 0 to count - 1. If you want to “wrap around” by setting the index to 0 once you reach the end, then you have to do:

if (currentPicture == [pictureArray count]) {
    currentPicture = 0;
}

count + 1 is one too far.