ios 什么是标准的苹果蓝颜色？
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What is the standard Apple blue colour?
提问by Fattie
Here's an extract from ...
这是摘自...
//
// UIColor.h
// UIKit
//
// Copyright (c) 2005-2013, Apple Inc. All rights reserved.
//
........
// Some convenience methods to create colours.
// These colors will be as calibrated as possible.
// These colors are cached.
+ (UIColor *)blackColor; // 0.0 white
+ (UIColor *)darkGrayColor; // 0.333 white
+ (UIColor *)lightGrayColor; // 0.667 white
+ (UIColor *)whiteColor; // 1.0 white
+ (UIColor *)grayColor; // 0.5 white
+ (UIColor *)redColor; // 1.0, 0.0, 0.0 RGB
+ (UIColor *)greenColor; // 0.0, 1.0, 0.0 RGB
+ (UIColor *)blueColor; // 0.0, 0.0, 1.0 RGB
+ (UIColor *)cyanColor; // 0.0, 1.0, 1.0 RGB
+ (UIColor *)yellowColor; // 1.0, 1.0, 0.0 RGB
+ (UIColor *)magentaColor; // 1.0, 0.0, 1.0 RGB
+ (UIColor *)orangeColor; // 1.0, 0.5, 0.0 RGB
+ (UIColor *)purpleColor; // 0.5, 0.0, 0.5 RGB
+ (UIColor *)brownColor; // 0.6, 0.4, 0.2 RGB
+ (UIColor *)clearColor; // 0.0 white, 0.0 alpha
Incredibly, they do not include"standard Apple 'button blue'" ........
令人难以置信的是，它们不包括“标准的苹果‘蓝色按钮’”......
In projects, we always have this: but it's a bit of a wild guess.
在项目中，我们总是有这样的：但这有点疯狂的猜测。
#define APPLEBLUE [UIColor \
colorWithRed:0/255.0 green:122/255.0 blue:255/255.0 alpha:1.0]
Alternately, you can do something insanely complex like this.........
或者，你可以做一些像这样疯狂复杂的事情.......
@implementation SomeButtons
{
UIColor *defaultColor;
}
-(id)initWithFrame:(CGRect)frame
{
defaultColor = [UIColor redColor];
if(self = [super initWithFrame:frame])
{
for (UIView *v in self.subviews)
if ([v isKindOfClass:[UIButton class]])
defaultColor = [(UIButton *)v titleColorForState:UIControlStateNormal];
}
return self;
}
-(id)initWithCoder:(NSCoder *)aCoder
{
if(self = [super initWithCoder:aCoder])
{
for (UIView *v in self.subviews)
if ([v isKindOfClass:[UIButton class]])
defaultColor = [(UIButton *)v titleColorForState:UIControlStateNormal];
}
return self;
}
It seems almost unbelievable there is not, an easier way, to return to "standard Apple control blue" for button and text colors.
几乎令人难以置信的是，没有一种更简单的方法可以将按钮和文本颜色恢复为“标准 Apple 控制蓝色”。
This is the sort of thing Android programmers laugh at us about :/ Does anyone know an easier way? I really hope I'm missing something obvious. Cheers
这是Android程序员嘲笑我们的事情：/有人知道更简单的方法吗？我真的希望我错过了一些明显的东西。干杯
回答by David Rysanek
A bit late, but you can find the colour values in Apple's Human interface guidelines.
有点晚了，但您可以在 Apple 的人机界面指南 中找到颜色值。
The blue is (R, G, B) = (0, 122, 255) = #007AFF
蓝色的是 (R, G, B) = (0, 122, 255) = #007AFF
I created a GISTwith UIColor extension for your convenience.
为了您的方便，我创建了一个带有 UIColor 扩展的GIST。
回答by i_am_jorf
Try the digital color meter? It seems to think (14, 122, 254).
试试数字色度计？它似乎认为 (14, 122, 254)。
Then add a category:
然后添加一个类别：
@implementation UIColor (MyColors)
+ (UIColor*)appleBlue {
return [UIColor colorWithRed:14.0/255 green:122.0/255 blue:254.0/255 alpha:1.0];
}
@end
回答by Roy K
Use this for swift:
快速使用它：
extension UIColor {
static func appleBlue() -> UIColor {
return UIColor.init(colorLiteralRed: 14.0/255, green: 122.0/255, blue: 254.0/255, alpha: 1.0)
}
}
