Reputation: 5525
I have made a dictionary of colors using the [UIColor colorWithRed: green: blue: alpha: ]
function. However, when called and shown on screen, they look nothing like the actual colors, but rather resembling the basic [UIColor yellowColor]
functions. Is there a library that I should be including in order to show the actual shades of RGB colors?
For reference, here is the dictionary I made:
colorStorage = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:229.0 green:43.0 blue:80.0 alpha:1.0], @"Amaranth",
[UIColor colorWithRed:225 green:191 blue:0 alpha:1.0], @"Amber",
[UIColor colorWithRed:239 green:222 blue:205 alpha:1.0], @"Almond",
[UIColor colorWithRed:205 green:149 blue:117 alpha:1.0], @"Antique brass",
[UIColor colorWithRed:0 green:128 blue:0 alpha:1.0], @"Ao",
[UIColor colorWithRed:141 green:182 blue:0 alpha:1.0], @"Apple green",
[UIColor colorWithRed:251 green:206 blue:177 alpha:1.0], @"Apricot",
[UIColor colorWithRed:135.0 green:169.0 blue:107.0 alpha:1.0], @"Asparagus",
[UIColor colorWithRed:0 green:127 blue:255 alpha:1.0], @"Azure",
[UIColor colorWithRed:225 green:32 blue:82 alpha:1.0], @"Awesome",
[UIColor colorWithRed:178 green:190 blue:181 alpha:1.0], @"Ash grey",
[UIColor colorWithRed:110 green:127 blue:128 alpha:1.0], @"AutoMetalSaurus", nil];
And they are called as such:
for (id key in colorStorage){
UIButton *colorButton = [UIButton buttonWithType:UIButtonTypeCustom];
[colorButton setTitle:key forState:UIControlStateNormal];
//additional code here...
colorButton.backgroundColor = [colorStorage objectForKey:key];
colorButton.tag = i;
[self.colorPicker addSubview:colorButton];
i = i + 1;
}
Upvotes: 1
Views: 491
Reputation: 5902
As stated, always divide RGB values by 255.0. I did this mistake too when first learning.
colorStorage = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:229.0/255.0 green:43.0/255.0 blue:80.0/255.0 alpha:1.0], @"Amaranth",
[UIColor colorWithRed:225.0/255.0 green:191.0/255.0 blue:0.0/255.0 alpha:1.0], @"Amber",
[UIColor colorWithRed:239.0/255.0 green:222.0/255.0 blue:205.0/255.0 alpha:1.0], @"Almond",
[UIColor colorWithRed:205.0/255.0 green:149.0/255.0 blue:117.0/255.0 alpha:1.0], @"Antique brass",
[UIColor colorWithRed:0.0/255.0 green:128.0/255.0 blue:0.0/255.0 alpha:1.0], @"Ao",
[UIColor colorWithRed:141.0/255.0 green:182.0/255.0 blue:0.0/255.0 alpha:1.0], @"Apple green",
[UIColor colorWithRed:251.0/255.0 green:206.0/255.0 blue:177.0/255.0 alpha:1.0], @"Apricot",
[UIColor colorWithRed:135.0/255.0 green:169.0/255.0 blue:107.0/255.0 alpha:1.0], @"Asparagus",
[UIColor colorWithRed:0.0/255.0 green:127.0/255.0 blue:255.0/255.0 alpha:1.0], @"Azure",
[UIColor colorWithRed:225.0/255.0 green:32.0/255.0 blue:82.0/255.0 alpha:1.0], @"Awesome",
[UIColor colorWithRed:178.0/255.0 green:190.0/255.0 blue:181.0/255.0 alpha:1.0], @"Ash grey",
[UIColor colorWithRed:110.0/255.0 green:127.0/255.0 blue:128.0/255.0 alpha:1.0], @"AutoMetalSaurus", nil];
Upvotes: 3