UIButton like behavior on custom subclass of UIView

Question

I have subclass of UIView

@interface TBL_CardView : UIView

It it internally have UIImageView for card image.

I need to handle touching of card in following way:

When I touch (and still hold) TBL_CardView I need to set orange borderColor.
If I am stil on top of TBL_CardView I need to set red borderColor.
If I am not on top of TBL_CardView, I have moved my finger, because I want to cancel touch, then borderColor is removed.

I know how to handle setting of borderColor:

self.layer.borderColor = [UIColor redColor].CGColor;
self.layer.borderWidth = 3.0f;

But I do not know what is the easiest way to implement thin button like behavior ?
Should I make it just as button, or use UIResponder or something else ?
What are pros and cons for each case ?

by "button like behavior" are you referring to target-action? — David Rönnqvist, Jul 03 '14 at 07:41
@David I basically need all 3 points from question. I do not know what is meant by `target-action`. — WebOrCode, Jul 03 '14 at 08:39

score 2 · Accepted Answer · edited May 23 '17 at 10:24

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    NSLog(@"%s", __PRETTY_FUNCTION__);

    UITouch *touch = [touches anyObject];
    CGPoint touchLocation = [touch locationInView: self];
    BOOL isInside = [self pointInside: touchLocation withEvent: event];
    if (isInside)
    {
        //if logic
        NSLog(@"INSIDE");
    }
    else
    {
        //else logic
        NSLog(@"OUTSIDE");
    }
}

You could check out this post for information on how to implement button-like behaviour and respond to touches on a UIView or a subclass.

Touch Event on UIView

What I usually do myself, however, is put a transparent (clear color and no title, not alpha = 0.0) UIButton on top of my UIView matching it s size and responding to the events I need instead. Check if it fits your needs.

Why do you make "UIButton on top of my UIView" is it not easier just to subclass UIButton ? — WebOrCode, Jul 03 '14 at 07:53

UIButton like behavior on custom subclass of UIView

1 Answers1