我需要帮助在这样的UILabel中获得正常的unicode向下箭头⬇ [英] I need help getting a normal looking unicode down arrow in a UILabel like this ⬇

问题描述

我想在UILabel里面显示一个向下箭头。具体⬇Unicode：U + 2B07。这是列标题上的显示排序顺序。

I would like to get a down arrow to display inside a UILabel. Specifically ⬇ Unicode: U+2B07. This is show sort order on a column header.

我看过用于显示unicode字符的代码，当我将它用于上面的符号时，它没有按预期显示，而是出现了蓝色向下有光泽的箭头。

I have seen the code to get unicode characters to display and when I use it for the symbol above it doesn't display as expected but rather comes up with a blue down arrow with gloss.

有没有人见过这个？

推荐答案

将某些字符显示为Emojis是一个特征，例如（有争议的）在这里讨论： https://devforums.apple.com/message/487463#487463 （需要Apple Developer登录）。此功能是在iOS 6中引入的。

Displaying some characters as "Emojis" is a feature which is e.g. (controversially) discussed here: https://devforums.apple.com/message/487463#487463 (requires Apple Developer login). This feature was introduced in iOS 6.

解决方案（来自 https：/ /stackoverflow.com/a/13836045/1187415 ）是附加Unicode变体选择器U + FE0E，例如

A solution (from https://stackoverflow.com/a/13836045/1187415) is to append the Unicode "Variation selector" U+FE0E, e.g.

self.myLabel.text = @"\u2B07\uFE0E";
// or:
self.myLabel.text = @"⬇\uFE0E";

请注意，在iOS< = 5.x上，不需要变体选择器且不得使用，因为iOS 5会将其显示为一个框。

Note that on iOS <= 5.x, the Variation selector is not necessary and must not be used, because iOS 5 would display it as a box.

在 Swift 中它将是

myLabel.text = "⬇\u{FE0E}"

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