UIButton 每行具有不同颜色的文本 [英] UIButton with different color text in each line

问题描述

我想要一个带有两行文本的 UIButton，每行的颜色不同.有这种可能吗?

I want to have a UIButton with two lines of text, with each line in different color. Is it possible to have like that ?

推荐答案

In Swift

var main_string = "Hello World"
var string_to_color = "World"
var range = (main_string as NSString).rangeOfString(string_to_color)
var attributedString = NSMutableAttributedString(string:main_string)
        attributedString.addAttribute(NSForegroundColorAttributeName, value: appSingleton.appRedColor , range: range)
self.celciusButton.setAttributedTitle(attributedString, forState: UIControlState.Normal)

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