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UIColor+FFColorWithHex
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| // | |
| // UIColor+FFColorWithHex.h | |
| // | |
| // Created by Florian Friedrich on 11.07.14. | |
| // Copyright (c) 2014 Florian Friedrich. All rights reserved. | |
| // | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
| // to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| // and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| // | |
| // The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| // | |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| // | |
| #import <UIKit/UIKit.h> | |
| @interface UIColor (FFColorWithHex) | |
| /** | |
| * Creates a color from a hex string. | |
| * @param hex The hex string to create the color from. Can include # or 0x as prefix. | |
| * @return The color represented by the hex string. | |
| */ | |
| + (instancetype)colorWithHexString:(NSString *)hex; | |
| /** | |
| * Creates a color from a hex string. | |
| * @param hex The hex string to create the color from. Can include # or 0x as prefix. | |
| * @param alpha The alpha value for the color. | |
| * @return The color represented by the hex string including the alpha value. | |
| */ | |
| + (instancetype)colorWithHexString:(NSString *)hex alpha:(CGFloat)alpha; | |
| @end |
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| // | |
| // UIColor+FFColorWithHex.h | |
| // | |
| // Created by Florian Friedrich on 11.07.14. | |
| // Copyright (c) 2014 Florian Friedrich. All rights reserved. | |
| // | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
| // to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| // and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| // | |
| // The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| // | |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| // | |
| #import "UIColor+FFColorWithHex.h" | |
| @implementation UIColor (FFColorWithHex) | |
| + (instancetype)colorWithHexString:(NSString *)hex { | |
| return [self colorWithHexString:hex alpha:1.0f]; | |
| } | |
| + (instancetype)colorWithHexString:(NSString *)hex alpha:(CGFloat)alpha { | |
| NSString *rawHex = hex; | |
| if ([hex hasPrefix:@"#"]) rawHex = [hex substringFromIndex:1]; | |
| if ([hex hasPrefix:@"0x"]) rawHex = [hex substringFromIndex:2]; | |
| NSAssert(rawHex.length == 6, @"Hex string has to have 6 chars (without # or 0x)"); | |
| NSString *redHex = [rawHex substringWithRange:NSMakeRange(0, 2)]; | |
| NSString *greenHex = [rawHex substringWithRange:NSMakeRange(2, 2)]; | |
| NSString *blueHex = [rawHex substringWithRange:NSMakeRange(4, 2)]; | |
| unsigned int r, g, b = 0; | |
| [[NSScanner scannerWithString:redHex] scanHexInt:&r]; | |
| [[NSScanner scannerWithString:greenHex] scanHexInt:&g]; | |
| [[NSScanner scannerWithString:blueHex] scanHexInt:&b]; | |
| return [self colorWithRed:(r/255.0f) green:(g/255.0f) blue:(b/255.0f) alpha:alpha]; | |
| } | |
| @end |
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