2025年十六进制颜色转UIColor

科技前沿 • 2025-02-14 10:54 • 阅读 47

大家好，我是讯享网，很高兴认识大家。

很多地方我们都使用16进制颜色，但iPhone使用的是UIColor对象，不直接支持16进制颜色，为此，需要我们手动将16进制颜色转换为UIColor。

- (UIColor *)getColor:(NSString*)hexColor

{

unsigned int red,green,blue;

NSRange range;

range.length = 2;

range.location = 0;

[[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&red];

range.location = 2;

讯享网

[[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&green];

range.location = 4;

[[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&blue];

return [UIColor colorWithRed:(float)(red/255.0f)green:(float)(green / 255.0f) blue:(float)(blue / 255.0f)alpha:1.0f];

}

[self.view setBackgroundColor:[self getColor:@"FF0000"]];

一个面试题：使用内联函数把@“#ff3344”转成UIColor

- (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; }

讯享网

2025年十六进制颜色转UIColor

一个面试题：使用内联函数把@“#ff3344”转成UIColor

相关推荐