发布网友 发布时间:2022-04-24 08:48
共3个回答
热心网友 时间:2022-06-18 04:24
1. 定义一个转换颜色的宏。
#define UIColorFromRGBA(rgbValue, alphaValue) \
[UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0x00FF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0x0000FF))/255.0 \
alpha:alphaValue]
2. 随时随地使用
UICorlor *color = UIColorFromRGBA(0xFF0000, .75);
热心网友 时间:2022-06-18 04:25
楼上的是16进制表示法,下面是rgb表示法的转换,大同小异。#define UIColorFromRGB2(r, g, b) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1.0] 查看原帖>>
热心网友 时间:2022-06-18 04:25
//RGB color macro#define UIColorFromRGB(rgbValue) [UIColor \colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]//RGB color macro with alpha#define UIColorFromRGBWithAlpha(rgbValue,a) [UIColor \colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \blue:((float)(rgbValue & 0xFF))/255.0 alpha:a] 查看原帖>>