Question

I am having trouble over simply assigning a value to a UI Button:

//Assume rect is defined
rect = CGRectMake(13, 10, 48, 48);
profileButton = [[UIButton alloc] initWithFrame:rect];
profileButton.buttonType = UIButtonTypeCustom;

I am getting “object cannot be set – either read-only property or setter found” when trying to assign the buttonType to UIButtonTypeCustom.

Answer 1

This is because buttonType is a read-only property. You can only create buttons of a specific type with buttonWithType:.

profileButton = [[UIButton buttonWithType: UIButtonTypeCustom] retain];
profileButton.frame = CGRectMake(13, 10, 48, 48);

(Not knowing what profileButton is, but assuming it is not a retaining property)