Question

I have an NSArray filled with UIImageViews. I want to do an indexOfObject call on the array, but using a UIImage as the search parameter. So I want to find the index of a UIImageView based on it’s image property. Is there an easy way to do this or do I need to customize the iteration thru the array?

Answer 1

You can use indexOfObjectPassingTest::

NSUInteger index = [array indexOfObjectPassingTest:^BOOL(UIImageView *imgv, NSUInteger idx, BOOL *stop) {
    *stop = (imgv.image == myImage);
    return *stop;
}];