No response from colorWithRed

Question

I am developing an application where I want to change font color of Navigation bar title and text label of Table cell.

I am using following code snip to change color

[mantraLabel setTextColor:[UIColor colorWithRed:89 green:45 blue:15 alpha:1]];

and configuring table cell as follow,

NSString *cellValue = [mantra objectAtIndex:indexPath.row];
    mantraLabel.backgroundColor=[UIColor clearColor];
    mantraLabel=[[UILabel alloc]initWithFrame:CGRectMake(60,4,200,44)];
    mantraLabel.text=cellValue;
    [mantraLabel setBaselineAdjustment:UIBaselineAdjustmentAlignCenters];
    [mantraLabel setFont:[UIFont fontWithName:@"Marathi-Vakra" size:21.0]];
    [cell addSubview:mantraLabel];
    [mantraLabel setTextColor:[UIColor colorWithRed:89 green:45 blue:15 alpha:1]];

But the Issue I am facing is that no color change is there with above statement and also one of my cell background is appearing in white color.

I think this will solve your problem [Answer](http://stackoverflow.com/q/599405/2407907) — Prashant Nikam, Sep 19 '13 at 10:10

βhargavḯ · Answer 1 · 2013-09-19T10:12:43.330

3

Correct your this line

[mantraLabel setTextColor:[UIColor colorWithRed:89 green:45 blue:15 alpha:1]];

with

[mantraLabel setTextColor:[UIColor colorWithRed:89/255.0 green:45/255.0 blue:15/255.0 alpha:1]];

Your color comes within the the range of 0.0 to 1.0. And we hardly use this way to specify colors. So in order to specify color within this range we need to divide it using 255.0

edited Sep 19 '13 at 10:12

answered Sep 19 '13 at 10:07

βhargavḯ

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thanks it worked for me.... can u please tell me what is issue with the line that I have used – Bhagyashree mahajan Sep 19 '13 at 10:11
@Bhagyashreemahajan URW :) – βhargavḯ Sep 19 '13 at 10:13
@Bhagyashreemahajan see my post for an explanation of why it didn't work. – Fogmeister Sep 19 '13 at 10:15
@Bhagyashreemahajan if anything solve your issue accept the answer so that others know the correct answer for the question – Vinodh Sep 19 '13 at 10:23
@Bhagyashreemahajan The function colorWithRed:green:blue:alpha is 1 based. so we are using (89/255) . – Vinodh Sep 19 '13 at 10:27
Review this - https://developer.apple.com/library/ios/DOCUMENTATION/UIKit/Reference/UIColor_Class/Reference/Reference.html#//apple_ref/occ/instm/UIColor/initWithRed:green:blue:alpha: – βhargavḯ Sep 19 '13 at 10:32

score 0 · Accepted Answer · answered Sep 19 '13 at 10:08

0

Replace

[cell addSubview:mantraLabel];
    [mantraLabel setTextColor:[UIColor colorWithRed:89 green:45 blue:15 alpha:1]];

With

[mantraLabel setTextColor:[UIColor colorWithRed:89/255.0f green:45/255.0f blue:15/255.0f alpha:1]];
[cell addSubview:mantraLabel];

Add your Label after set color

answered Sep 19 '13 at 10:08

user1673099

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Is this helpful to you?? – user1673099 Sep 19 '13 at 10:18

score 0 · Answer 3 · answered Sep 19 '13 at 10:08

0

The function colorWithRed:green:blue:alpha is 1 based.

i.e. 89 = 0.349 ... (89/255)

You should use...

[UIColor colorWithRed:0.349 green:0.176 blue:0.058 alpha:1.0];

answered Sep 19 '13 at 10:08

Fogmeister

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No response from colorWithRed

3 Answers3