UIColor 进阶

最新推荐文章于 2024-10-09 09:26:24 发布

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最新推荐文章于 2024-10-09 09:26:24 发布 · 1w 阅读

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CC 4.0 BY-SA版权

文章标签：

#colors #methods #parameters #interface #osx #iphone

本文深入探讨了iOS开发中UIColor的高级用法，特别介绍了一个将十六进制颜色值转化为UIColor的方法，帮助开发者更好地处理界面色彩。

多说，请先看头文件：

#import <Foundation/Foundation.h>
#import <CoreGraphics/CoreGraphics.h>
#import <CoreImage/CoreImage.h>
#import <UIKit/UIKitDefines.h>

@class UIImage;

UIKIT_CLASS_AVAILABLE(2_0) @interface UIColor : NSObject <NSCoding> {
  @private
}

// Convenience methods for creating autoreleased colors
+ (UIColor *)colorWithWhite:(CGFloat)white alpha:(CGFloat)alpha;
+ (UIColor *)colorWithHue:(CGFloat)hue saturation:(CGFloat)saturation brightness:(CGFloat)brightness alpha:(CGFloat)alpha;
+ (UIColor *)colorWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha;
+ (UIColor *)colorWithCGColor:(CGColorRef)cgColor;
+ (UIColor *)colorWithPatternImage:(UIImage *)image;
+ (UIColor *)colorWithCIColor:(CIColor *)ciColor __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_5_0);

// Initializers for creating non-autoreleased colors
- (UIColor *)initWithWhite:(CGFloat)white alpha:(CGFloat)alpha;
- (UICol