CODEWITHSUNDEEP
iphonexcode
james
james

Reputation: 646

RGB color codes not showing color in iphone app

I am using RGB color code for my bar to show in iphone app but they don't show any color i am getting these code values from photoshop but when i use them they don't show any color in iphone app

For first line i have RGB code from photoshop is 255.192,0

        color=[UIColor colorWithRed:255 green:192 blue:0 alpha:0 ];

For Second line i have RGB code from photoshop is 195,214,155

        color=[UIColor colorWithRed:195 green:214 blue:155 alpha:0];

For Third line i have RGB code from photoshop is 49,133,156

        color=[UIColor colorWithRed:49 green:133 blue:156 alpha:0 ];

Upvotes: 0

Views: 1645

Answers (4)

Ganesh
Ganesh

Reputation: 1079

RGB values on iOS only fall between 0 and 1, so you must divide the hue you want by 255.0f like this:

UIColor *color=[UIColor colorWithRed:255.0f/255.0f green:192.0f/255.0f blue:0.0f alpha:0.0f];

Upvotes: 1

iOS Developer
iOS Developer

Reputation: 1723

Try setting your alpha value as 1 like this [UIColor colorWithRed:255/255 green:192/255 blue:0 alpha:1 ];'

alpha is the transparency of your color

Upvotes: 4

Codo
Codo

Reputation: 78825

The parameters of colorWithRed:green:blue:alpha are floating point values between 0 and 1. So you have to divide all numbers by 255, e.g.:

color = [UIColor colorWithRed:1.0f green:0.75f blue:0f alpha:1f];

Upvotes: 4

ilight
ilight

Reputation: 1622

Change the line 

color=[UIColor colorWithRed:255 green:192 blue:0 alpha:0 ];

to 

color=[UIColor colorWithRed:(255/255.0) green:(192/255.0) blue:0 alpha:0 ];

I dont know about the alpha but I believe it should be 1

Upvotes: 1

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