這個(gè)是十六進(jìn)制的顏色轉(zhuǎn)換成UIColor格式的顏色，廢話不說，直接上代碼：
//.h的文件
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface ColorChange : NSObject
+ (UIColor *)colorWithHexString:(NSString *)color;
@end
//.m的文件
#import "ColorChange.h"
@implementation ColorChange
#pragma mark -- 16進(jìn)制Color轉(zhuǎn)換
+ (UIColor *)colorWithHexString:(NSString *)color
{
NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
if ([cString length] < 6) {
return [UIColor clearColor];
}
if ([cString hasPrefix:@"0X"])
cString = [cString substringFromIndex:2];
if ([cString hasPrefix:@"#"])
cString = [cString substringFromIndex:1];
if ([cString length] != 6)
return [UIColor clearColor];
NSRange range;
range.location = 0;
range.length = 2;
NSString *rString = [cString substringWithRange:range];
range.location = 2;
NSString *gString = [cString substringWithRange:range];
range.location = 4;
NSString *bString = [cString substringWithRange:range];
unsigned int r, g, b;
[[NSScanner scannerWithString:rString] scanHexInt:&r];
[[NSScanner scannerWithString:gString] scanHexInt:&g];
[[NSScanner scannerWithString:bString] scanHexInt:&b];
return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];
}
@end
