Xcode：带逗号的点号 [英] Xcode : Number pad with point for comma

问题描述

我有一个有完成按钮的数字键盘。但是用户只能选择没有逗号的数字。所以我有一个方法有一个数字垫与donebutton（我有），整合与标点，或至少一个点为逗号？
谢谢！ ;）

I have a number pad with done button. But the user can only choose numbers without comma's. So i there a way to have a number pad with donebutton (wich I have) , integreted with punctation , or at least a point for the comma ? Thanks ! ;)

推荐答案

你的问题暗示你正在做一些格式化的数字。这似乎是一个安全的假设，你将使用固定数目的小数位（因为它是更常见的看到带有固定小数位数的格式化的数字比没有）。

Your question implies that you're doing to be doing some formatted number. It would then seem like a safe assumption that you're going to be working with a fixed number of decimal places (as it is more common to see a formatted number with a fixed number of decimal places than without).

如果是这样，则不需要使用。或，按钮。你可以从固定数目的小数位置开始，并移动东西。例如，假设您要输入数字4,238.07。

If this is true, then you don't need the . or , buttons at all. You could just start with the fixed number of decimal places and shift stuff over. For example, let's say you want to type the number "4,238.07".

______.__  //type 4
______._4  //type 2
______.42  //type 3
_____4.23  //type 8
____42.38  //type 0
___423.80  //type 7
_4,238.07

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