UIButton setTitleColor與RGB值不起作用

Question

我必須將ffe1b1的標題顏色設置爲ffe1b1的UIButton.RGB值爲255,225,177。 我正在嘗試此代碼，但它沒有正確反映。我在網上搜索顏色組件漂浮在0.0和1.0之間！ 那麼，什麼是給了這RGB Values.Thanks

UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom] ; 
btn.frame = CGRectMake(134.0, 193.0, 80.0, 30.0); 


[btn setBackgroundImage:img forState:UIControlStateNormal]; 
[btn setTitle:@"Contact" forState:UIControlStateNormal]; 

[btn setTitleColor:[UIColor colorWithRed:255.0 green:225.0 blue:177.0 alpha:0.6 ]forState: UIControlStateNormal]; 

Answer 1

更改行這樣

[btn setTitleColor:[UIColor colorWithRed:255.0 green:225.0 blue:177.0 alpha:0.6 ]forState: UIControlStateNormal]; 

到

[btn setTitleColor:[UIColor colorWithRed:(255.0/255) green:(225.0/255) blue:(177.0/255) alpha:0.6 ]forState: UIControlStateNormal]; 

Answer 2

目標C你不能直接使用RGB值正確方法。請點擊此鏈接： http://www.touch-code-magazine.com/web-color-to-uicolor-convertor/