如何在Kotlin中向Java类添加静态方法 [英] How can one add static methods to Java classes in Kotlin

问题描述

是否可以向Kotlin中的java.lang.Math类添加新的静态方法?通常，由于 Kotlin扩展，这些事情在Kotlin中是可能的.

Is it possible to add a new static method to the java.lang.Math class in Kotlin? Usually, such things are possible in Kotlin thanks to Kotlin Extensions.

我已经尝试在我创建的名为Extensions.kt的文件中执行以下操作:

I already tried doing the following in a file I made called Extensions.kt:

fun Math.Companion.clamp(value:Double,minValue:Double,maxValue:Double):Double
{
    return Math.max(Math.min(value,maxValue),minValue)
}

但是Math.Companion无法解决...

推荐答案

从Kotlin 1.3开始，这是不可能的.但是，正在考虑在将来的版本中使用它！

As of Kotlin 1.3, this is not possible. However, it's being considered for a future release!

为帮助实现此功能，请就此问题进行投票: https://youtrack.jetbrains .com/issue/KT-11968

To help this feature get implemented, go vote on this issue: https://youtrack.jetbrains.com/issue/KT-11968

这个想法在Kotlin社区中非常流行，所以我敢肯定会很快出现.

This idea is very popular in the Kotlin community, so I bet it'll be in soon enough.

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