Mixing
how to convert hexadecimal to RGB
26
I want to make a conversion from hexadecimal to RGB, but the hexadecimal deal with a string like #FFFFFF. How can I do that?
objective-c ios cocoa-touch hex rgb
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
|
show 2 more comments
26
I want to make a conversion from hexadecimal to RGB, but the hexadecimal deal with a string like #FFFFFF. How can I do that?
objective-c ios cocoa-touch hex rgb
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
4
which language?
– st0le
Nov 24 '10 at 9:27
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
2
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10
|
show 2 more comments
26
26
26
15
I want to make a conversion from hexadecimal to RGB, but the hexadecimal deal with a string like #FFFFFF. How can I do that?
objective-c ios cocoa-touch hex rgb
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
I want to make a conversion from hexadecimal to RGB, but the hexadecimal deal with a string like #FFFFFF. How can I do that?
objective-c ios cocoa-touch hex rgb
objective-c ios cocoa-touch hex rgb
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
edited Dec 4 '12 at 18:45
vikingosegundo
48.6k14115162
48.6k14115162
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
asked Nov 24 '10 at 9:22
R. DewiR. Dewi
1,62283561
1,62283561
4
which language?
– st0le
Nov 24 '10 at 9:27
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
2
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10
|
show 2 more comments
4
which language?
– st0le
Nov 24 '10 at 9:27
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
2
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10
4
4
which language?
– st0le
Nov 24 '10 at 9:27
which language?
– st0le
Nov 24 '10 at 9:27
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
2
2
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10
|
show 2 more comments
3 Answers
3
active
oldest
votes
82
I've just expanded my UIColor Category for you.
use it like UIColor *green = [UIColor colorWithHexString:@"#00FF00"];
//
// UIColor_Categories.h
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIColor(MBCategory)
+ (UIColor *)colorWithHex:(UInt32)col;
+ (UIColor *)colorWithHexString:(NSString *)str;
@end
//
// UIColor_Categories.m
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import "UIColor_Categories.h"
@implementation UIColor(MBCategory)
// takes @"#123456"
+ (UIColor *)colorWithHexString:(NSString *)str {
const char *cStr = [str cStringUsingEncoding:NSASCIIStringEncoding];
long x = strtol(cStr+1, NULL, 16);
return [UIColor colorWithHex:x];
}
// takes 0x123456
+ (UIColor *)colorWithHex:(UInt32)col {
unsigned char r, g, b;
b = col & 0xFF;
g = (col >> 8) & 0xFF;
r = (col >> 16) & 0xFF;
return [UIColor colorWithRed:(float)r/255.0f green:(float)g/255.0f blue:(float)b/255.0f alpha:1];
}
@end
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
add a comment |
25
//In your header file
#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]
//usage
UIColor *color = UIColorFromRGB(0x000000)
//you can also use it inline
[text.textField setTextColor:UIColorFromRGB(0xcccccc)];
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
add a comment |
5
Swift
It is very useful
extension UIColor {
convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
(a, r, g, b) = (1, 1, 1, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
public func hexStringWithAlpha(_ includeAlpha: Bool) -> String {
var r: CGFloat = 0
var g: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
self.getRed(&r, green: &g, blue: &b, alpha: &a)
if (includeAlpha) {
return String(format: "%02X%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255), Int(a * 255))
} else {
return String(format: "%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255))
}
}
open override var description: String {
return self.hexStringWithAlpha(true)
}
open override var debugDescription: String {
return self.hexStringWithAlpha(true)
}
}
Obj-C
UIColor *organizationColor = [self colorWithHexString:@"#ababab" alpha:1];
- (UIColor *)colorWithHexString:(NSString *)str_HEX alpha:(CGFloat)alpha_range{
int red = 0;
int green = 0;
int blue = 0;
sscanf([str_HEX UTF8String], "#%02X%02X%02X", &red, &green, &blue);
return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4265161%2fhow-to-convert-hexadecimal-to-rgb%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
82
I've just expanded my UIColor Category for you.
use it like UIColor *green = [UIColor colorWithHexString:@"#00FF00"];
//
// UIColor_Categories.h
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIColor(MBCategory)
+ (UIColor *)colorWithHex:(UInt32)col;
+ (UIColor *)colorWithHexString:(NSString *)str;
@end
//
// UIColor_Categories.m
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import "UIColor_Categories.h"
@implementation UIColor(MBCategory)
// takes @"#123456"
+ (UIColor *)colorWithHexString:(NSString *)str {
const char *cStr = [str cStringUsingEncoding:NSASCIIStringEncoding];
long x = strtol(cStr+1, NULL, 16);
return [UIColor colorWithHex:x];
}
// takes 0x123456
+ (UIColor *)colorWithHex:(UInt32)col {
unsigned char r, g, b;
b = col & 0xFF;
g = (col >> 8) & 0xFF;
r = (col >> 16) & 0xFF;
return [UIColor colorWithRed:(float)r/255.0f green:(float)g/255.0f blue:(float)b/255.0f alpha:1];
}
@end
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
add a comment |
82
I've just expanded my UIColor Category for you.
use it like UIColor *green = [UIColor colorWithHexString:@"#00FF00"];
//
// UIColor_Categories.h
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIColor(MBCategory)
+ (UIColor *)colorWithHex:(UInt32)col;
+ (UIColor *)colorWithHexString:(NSString *)str;
@end
//
// UIColor_Categories.m
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import "UIColor_Categories.h"
@implementation UIColor(MBCategory)
// takes @"#123456"
+ (UIColor *)colorWithHexString:(NSString *)str {
const char *cStr = [str cStringUsingEncoding:NSASCIIStringEncoding];
long x = strtol(cStr+1, NULL, 16);
return [UIColor colorWithHex:x];
}
// takes 0x123456
+ (UIColor *)colorWithHex:(UInt32)col {
unsigned char r, g, b;
b = col & 0xFF;
g = (col >> 8) & 0xFF;
r = (col >> 16) & 0xFF;
return [UIColor colorWithRed:(float)r/255.0f green:(float)g/255.0f blue:(float)b/255.0f alpha:1];
}
@end
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
add a comment |
82
82
82
I've just expanded my UIColor Category for you.
use it like UIColor *green = [UIColor colorWithHexString:@"#00FF00"];
//
// UIColor_Categories.h
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIColor(MBCategory)
+ (UIColor *)colorWithHex:(UInt32)col;
+ (UIColor *)colorWithHexString:(NSString *)str;
@end
//
// UIColor_Categories.m
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import "UIColor_Categories.h"
@implementation UIColor(MBCategory)
// takes @"#123456"
+ (UIColor *)colorWithHexString:(NSString *)str {
const char *cStr = [str cStringUsingEncoding:NSASCIIStringEncoding];
long x = strtol(cStr+1, NULL, 16);
return [UIColor colorWithHex:x];
}
// takes 0x123456
+ (UIColor *)colorWithHex:(UInt32)col {
unsigned char r, g, b;
b = col & 0xFF;
g = (col >> 8) & 0xFF;
r = (col >> 16) & 0xFF;
return [UIColor colorWithRed:(float)r/255.0f green:(float)g/255.0f blue:(float)b/255.0f alpha:1];
}
@end
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
I've just expanded my UIColor Category for you.
use it like UIColor *green = [UIColor colorWithHexString:@"#00FF00"];
//
// UIColor_Categories.h
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface UIColor(MBCategory)
+ (UIColor *)colorWithHex:(UInt32)col;
+ (UIColor *)colorWithHexString:(NSString *)str;
@end
//
// UIColor_Categories.m
//
// Created by Matthias Bauch on 24.11.10.
// Copyright 2010 Matthias Bauch. All rights reserved.
//
#import "UIColor_Categories.h"
@implementation UIColor(MBCategory)
// takes @"#123456"
+ (UIColor *)colorWithHexString:(NSString *)str {
const char *cStr = [str cStringUsingEncoding:NSASCIIStringEncoding];
long x = strtol(cStr+1, NULL, 16);
return [UIColor colorWithHex:x];
}
// takes 0x123456
+ (UIColor *)colorWithHex:(UInt32)col {
unsigned char r, g, b;
b = col & 0xFF;
g = (col >> 8) & 0xFF;
r = (col >> 16) & 0xFF;
return [UIColor colorWithRed:(float)r/255.0f green:(float)g/255.0f blue:(float)b/255.0f alpha:1];
}
@end
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
answered Nov 24 '10 at 11:48
Matthias BauchMatthias Bauch
83.4k15206242
83.4k15206242
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
add a comment |
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
I know this is old now but I believe that you have to #import <UIKit/UIColor.h> to actual be able to do UIColor(MBCategory) otherwise you get an error saying unable to find @interface UIColor. This could just have been an update since this was written, but it doesn't work without the import.
– Popeye
Jul 11 '12 at 14:27
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
It should work in a standard iOS project created by Xcode. The whole UIKit is imported in the precompiled header (ProjectName-Prefix.pch).
– Matthias Bauch
Jul 11 '12 at 16:22
add a comment |
25
//In your header file
#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]
//usage
UIColor *color = UIColorFromRGB(0x000000)
//you can also use it inline
[text.textField setTextColor:UIColorFromRGB(0xcccccc)];
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
add a comment |
25
//In your header file
#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]
//usage
UIColor *color = UIColorFromRGB(0x000000)
//you can also use it inline
[text.textField setTextColor:UIColorFromRGB(0xcccccc)];
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
add a comment |
25
25
25
//In your header file
#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]
//usage
UIColor *color = UIColorFromRGB(0x000000)
//you can also use it inline
[text.textField setTextColor:UIColorFromRGB(0xcccccc)];
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
//In your header file
#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]
//usage
UIColor *color = UIColorFromRGB(0x000000)
//you can also use it inline
[text.textField setTextColor:UIColorFromRGB(0xcccccc)];
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
answered Nov 24 '10 at 19:26
Andrew CarterAndrew Carter
1,92011219
1,92011219
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
add a comment |
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
2
2
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
I think this is something great :)
– Munim Dibosh
Jun 14 '13 at 8:47
add a comment |
5
Swift
It is very useful
extension UIColor {
convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
(a, r, g, b) = (1, 1, 1, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
public func hexStringWithAlpha(_ includeAlpha: Bool) -> String {
var r: CGFloat = 0
var g: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
self.getRed(&r, green: &g, blue: &b, alpha: &a)
if (includeAlpha) {
return String(format: "%02X%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255), Int(a * 255))
} else {
return String(format: "%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255))
}
}
open override var description: String {
return self.hexStringWithAlpha(true)
}
open override var debugDescription: String {
return self.hexStringWithAlpha(true)
}
}
Obj-C
UIColor *organizationColor = [self colorWithHexString:@"#ababab" alpha:1];
- (UIColor *)colorWithHexString:(NSString *)str_HEX alpha:(CGFloat)alpha_range{
int red = 0;
int green = 0;
int blue = 0;
sscanf([str_HEX UTF8String], "#%02X%02X%02X", &red, &green, &blue);
return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
add a comment |
5
Swift
It is very useful
extension UIColor {
convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
(a, r, g, b) = (1, 1, 1, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
public func hexStringWithAlpha(_ includeAlpha: Bool) -> String {
var r: CGFloat = 0
var g: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
self.getRed(&r, green: &g, blue: &b, alpha: &a)
if (includeAlpha) {
return String(format: "%02X%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255), Int(a * 255))
} else {
return String(format: "%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255))
}
}
open override var description: String {
return self.hexStringWithAlpha(true)
}
open override var debugDescription: String {
return self.hexStringWithAlpha(true)
}
}
Obj-C
UIColor *organizationColor = [self colorWithHexString:@"#ababab" alpha:1];
- (UIColor *)colorWithHexString:(NSString *)str_HEX alpha:(CGFloat)alpha_range{
int red = 0;
int green = 0;
int blue = 0;
sscanf([str_HEX UTF8String], "#%02X%02X%02X", &red, &green, &blue);
return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
add a comment |
5
5
5
Swift
It is very useful
extension UIColor {
convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
(a, r, g, b) = (1, 1, 1, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
public func hexStringWithAlpha(_ includeAlpha: Bool) -> String {
var r: CGFloat = 0
var g: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
self.getRed(&r, green: &g, blue: &b, alpha: &a)
if (includeAlpha) {
return String(format: "%02X%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255), Int(a * 255))
} else {
return String(format: "%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255))
}
}
open override var description: String {
return self.hexStringWithAlpha(true)
}
open override var debugDescription: String {
return self.hexStringWithAlpha(true)
}
}
Obj-C
UIColor *organizationColor = [self colorWithHexString:@"#ababab" alpha:1];
- (UIColor *)colorWithHexString:(NSString *)str_HEX alpha:(CGFloat)alpha_range{
int red = 0;
int green = 0;
int blue = 0;
sscanf([str_HEX UTF8String], "#%02X%02X%02X", &red, &green, &blue);
return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
Swift
It is very useful
extension UIColor {
convenience init(hexString: String) {
let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
var int = UInt32()
Scanner(string: hex).scanHexInt32(&int)
let a, r, g, b: UInt32
switch hex.count {
case 3: // RGB (12-bit)
(a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
case 6: // RGB (24-bit)
(a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
case 8: // ARGB (32-bit)
(a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
default:
(a, r, g, b) = (1, 1, 1, 0)
}
self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
}
public func hexStringWithAlpha(_ includeAlpha: Bool) -> String {
var r: CGFloat = 0
var g: CGFloat = 0
var b: CGFloat = 0
var a: CGFloat = 0
self.getRed(&r, green: &g, blue: &b, alpha: &a)
if (includeAlpha) {
return String(format: "%02X%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255), Int(a * 255))
} else {
return String(format: "%02X%02X%02X", Int(r * 255), Int(g * 255), Int(b * 255))
}
}
open override var description: String {
return self.hexStringWithAlpha(true)
}
open override var debugDescription: String {
return self.hexStringWithAlpha(true)
}
}
Obj-C
UIColor *organizationColor = [self colorWithHexString:@"#ababab" alpha:1];
- (UIColor *)colorWithHexString:(NSString *)str_HEX alpha:(CGFloat)alpha_range{
int red = 0;
int green = 0;
int blue = 0;
sscanf([str_HEX UTF8String], "#%02X%02X%02X", &red, &green, &blue);
return [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
edited Nov 22 '18 at 10:21
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
answered Sep 16 '15 at 10:41
Jaleel NazirJaleel Nazir
4,11032541
4,11032541
add a comment |
add a comment |
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4265161%2fhow-to-convert-hexadecimal-to-rgb%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
4
which language?
– st0le
Nov 24 '10 at 9:27
Can you specify the language?
– Dr Casper Black
Nov 24 '10 at 9:32
i'm sorry, i've edit it..it is in objective C
– R. Dewi
Nov 24 '10 at 9:32
2
Also have a look at: stackoverflow.com/questions/3723846 and stackoverflow.com/questions/3010216/…
– Cody Gray♦
Nov 24 '10 at 9:46
@ceacare yes i am, why?
– R. Dewi
Nov 22 '11 at 3:10