标签:color io os sp on c amp r bs
在实际开发中 有时美工会给我们一种颜色值(形如#FF0000)去设置某个view的背景色,这时我们需要把这种十六进制的值转换为UIColor对象
下面这个方法就很有用了:
- (UIColor *) stringTOColor:(NSString *)str
{
if (!str || [str isEqualToString:@""]) {
return nil;
}
unsigned red,green,blue;
NSRange range;
range.length = 2;
range.location = 1;
[[NSScanner scannerWithString:[str substringWithRange:range]] scanHexInt:&red];
range.location = 3;
[[NSScanner scannerWithString:[str substringWithRange:range]] scanHexInt:&green];
range.location = 5;
[[NSScanner scannerWithString:[str substringWithRange:range]] scanHexInt:&blue]; UIColor *color= [UIColor colorWithRed:red/255.0f green:green/255.0f blue:blue/255.0f alpha:1];
return color;
}
标签:color io os sp on c amp r bs
原文地址:http://www.cnblogs.com/billy-chou/p/3966671.html