Re: Cahnging bgColor of a UIView not working.
Re: Cahnging bgColor of a UIView not working.
- Subject: Re: Cahnging bgColor of a UIView not working.
- From: "Eric E. Dolecki" <email@hidden>
- Date: Wed, 29 Jul 2009 14:27:20 -0400
This is good to use:
#define UIColorFromRGB(rgbValue) [UIColor \ colorWithRed:((float)((rgbValue
& 0xFF0000) >> 16))/255.0 \ green:((float)((rgbValue & 0xFF00) >> 8))/255.0
\ blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
...
cell.textColor = UIColorFromRGB(0x333333);
On Wed, Jul 29, 2009 at 1:04 PM, Brian Slick <email@hidden> wrote:
> On Jul 29, 2009, at 12:56 PM, David Duncan wrote:
>
> On Jul 29, 2009, at 4:52 AM, Brandon Walkin wrote:
>>
>> The arguments to that UIColor method should be in the range of 0 to 1.
>>> Divide each RGB value by 255 to get them into that range.
>>>
>>
>>
>> This is more of a PSA than anything (because I've seen more than a fair
>> share of devs slap themselves on the head here too): Always ensure your
>> using floating point division if your going to do this. That means always
>> dividing by 255.0. I've seen too many people asking "why do I always get
>> black" and pointed out "because you forgot the .0" :).
>> --
>> David Duncan
>> Apple DTS Animation and Printing
>>
>
> *jaw dropping*
>
> Well, I guess that explains that. I finally just gave up and did the math
> myself.
>
> Good tip, thanks!
>
> Brian
>
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Interactive design and development
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