Question

The UIButton has a normal/default, highlighted, and selected image. I then have a IBAction method that is called on Touch Down. The method changes the highlighted image depending if it’s selected. But when the button is selected, the method is called and so the highlight image is changed, however what is displayed is the normal/default image with a tint. I have tested that image used is in not nil. What happens is when the UIButton in a selected state is pressed displays the normal state with a tint. Why is it not using the highlight image and is there another way of showing a selected highlight image?

Answer 1

I got around this problem by using the selected state and notifications (not via the UI). When a notification is called I change image for the default state, change the selected state and then change the image for selected state.

Update:
I came up with a much better idea from another question that was doing something similar to me. The way to do it is to things in setSelected

- (void)setSelected:(BOOL)selected
{
    if ( selected )
    {
        [self setImage:[CFCHStyleSheet imageForTickButtonChecked] forState:UIControlStateNormal];
        [self setImage:[CFCHStyleSheet imageForTickButtonChecked] forState:UIControlStateSelected];
        [self setImage:[CFCHStyleSheet imageForTickButtonCheckedDisabled] forState:UIControlStateDisabled];
    }
    else
    {
        [self setImage:[CFCHStyleSheet imageForTickButtonUnchecked] forState:UIControlStateNormal];
        [self setImage:[CFCHStyleSheet imageForTickButtonUnchecked] forState:UIControlStateSelected];
        [self setImage:[CFCHStyleSheet imageForTickButtonUncheckedDisabled] forState:UIControlStateDisabled];
    }

    [super setSelected:selected];
}