CODEWITHSUNDEEP
objective-ccocoa-touchuicolor
amar
amar

Reputation: 4345

UIColor colorWithRed:green:blue: always produces black

I have come across many instances when I try to make custom color through code and the result is quite different from Photoshop, e.g 

[UIColor colorWithRed:(160/255) green:(97/255) blue:(5/255) alpha:1];

the resultant color is blackish, whereas it should me something like yellow. When working using sliders, the result is as expected.

Is there a problem with my Xcode or it is a general issue?

Upvotes: 21

Views: 12292

Answers (2)

janusfidel
janusfidel

Reputation: 8106

colorWithRed:green:blue:alpha , each parameter specified as a value from 0.0(MIN) to 1.0 (MAX)

[UIColor colorWithRed:(160/255.0f) green:(97/255.0f) blue:(5/255.0f) alpha:1];

Upvotes: 5

user529758
user529758

Reputation:

Dividing integers results in integer division that essentially means truncating the fractional part of the result. Use

[UIColor colorWithRed:(160/255.0) green:(97/255.0) blue:(5/255.0) alpha:1.0]

instead.

Upvotes: 51

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