如何将我的 EditText 输入限制为数字(可能是十进制和有符号)输入? [英] How do I restrict my EditText input to numerical (possibly decimal and signed) input?

问题描述

我已阅读 Android:将 EditText 限制为数字 和 如何在 android 的 EditText 上显示数字键盘?.不幸的是，它们似乎都不符合我的需求.

I have read Android: Limiting EditText to numbers and How do I show the number keyboard on an EditText in android?. Unfortunately, none of them seems to fit my needs.

我想将我的 EditText 输入限制为仅限数字.但是，我也希望允许有符号和/或十进制输入.

I want to restrict my EditText input to only numbers. However, I also want to allow signed and/or decimal input.

这是我当前的代码(我需要以编程方式执行此操作):

Here is my current code (I need to do this programmatically):

EditText edit = new EditText(this);

edit.setHorizontallyScrolling(true);
edit.setInputType(InputType.TYPE_CLASS_NUMBER);

有了这个，我的 EditText 愉快地将所有输入限制为数字.不幸的是，它不允许任何其他内容，例如小数点.

With this, my EditText merrily restricts all input to numerical digits. Unfortunately, it doesn't allow anything else, like the decimal point.

如果我将该行更改为 edit.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL)，EditText 将接受所有输入(这不是我想要的......).

If I change that line to edit.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL), the EditText accepts all input (which isn't what I want...).

我尝试过组合标志(绝望地想看看它是否可行):

I've tried combining flags (in desperation to see if it would work):

edit.setInputType(InputType.TYPE_CLASS_NUMBER);
edit.setInputType(InputType.TYPE_NUMBER_FLAG_DECIMAL)
edit.setInputType(InputType.TYPE_NUMBER_FLAG_SIGNED)

这也不起作用(EditText 像往常一样接受所有输入).

That didn't work either (the EditText accepted all input as usual).

那么，我该怎么做呢?

推荐答案

尝试使用 TextView.setRawInputType()对应android:inputType属性.

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