Re: How to get a "Normal" button in iOS 7/IB
Re: How to get a "Normal" button in iOS 7/IB
- Subject: Re: How to get a "Normal" button in iOS 7/IB
- From: Alex Zavatone <email@hidden>
- Date: Thu, 03 Oct 2013 19:52:12 -0400
The cap approach is something that's supported with a standard button and it works really well.
FWIW, I've been using it since 1998 with PNGs. Basically, the approach is that you have a PNG graphic that is nicely antialiased and alpha channeled. It consists of a button's left and right caps and a middle region that is a stretchable column of pixels. When making the button, and assigning the graphic, you define how many pixels are used in the left and right caps and the middle is taken from the middle column of pixels.
Make sure to have a graphic that consists of the left, right and middle for each state of the button, such as active and clickable/tappable, active/over, down, selected, disabled.
It works like a charm. I've even got some of these PNGs if you need to try it out on a UIButton.
There are more advanced ways to make buttons with gradients by creating the image in code, but just creating a set of capped images for the button graphics is a pretty easy way to go.
Lots of how some frameworks are implemented might not make sense and might suck to you. You'll find that the frameworks are how the frameworks are, like it or not.
I'm sure that there are loads of custom button classes out there that you can find on Github or StackExchange that create buttons in code the way you expect. Whether something like this should be in the UIButton class or not, well - it probably should be, but it isn't and it's up to us to see how to deal with that.
Might be a good little project for a class extension category for you to build out.
On Oct 3, 2013, at 5:39 PM, Dave wrote:
>
> On 3 Oct 2013, at 21:13, Fritz Anderson <email@hidden> wrote:
>
>> On 3 Oct 2013, at 2:09 PM, Dave <email@hidden> wrote:
>>
>>> Sorry, should have said, without using an Image.
>>
>> Why? Images are how this sort of thing gets done. Anything else is a stunt, unless you have some constraint you're not telling us about.
>>
>> (You're familiar with -[UIImage resizableImageWithCapInsets:] and related API?)
>>
>> I suppose (off the top of my head, not even "written in Mail"), you could have a UIButton subclass that returns a CALayer subclass of your devising from +layerClass, and have your layer set borders and corner-rounding.
>
> I really don't want to make lots of images just for this and to be honest, if a Framework doesn't support an Industry Standard "Button" out of the box, then, it sucks!
>
> Thanks
> Dave
>
>
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