在Kotlin中，如何将主要构造函数中的属性的setter设为私有? [英] In kotlin, how to make the setter of properties in primary constructor private?

问题描述

在Kotlin中，如何将主要构造函数中的属性的设置方法设为私有?

In kotlin, how to make the setter of properties in primary constructor private?

class City(val id: String, var name: String, var description: String = "") {

    fun update(name: String, description: String? = "") {
        this.name = name
        this.description = description ?: this.description
    }
}

我希望属性name的设置方法是私有的，而属性的获取方法是公开的，我该怎么办?

I want the setter of properties name to be private, and the getter of it public, how can I do?

推荐答案

解决方案是在构造函数之外创建属性并设置setter的可见性.

The solution is to create a property outside of constructor and set setter's visibility.

class Sample(var id: Int, name: String) {

    var name: String = name
        private set

}

更新:
他们在这里进行讨论: https://describe.kotlinlang.org/t/private-setter-for-var-in-primary-constructor/3640

Update:
They're discussing it here: https://discuss.kotlinlang.org/t/private-setter-for-var-in-primary-constructor/3640

这篇关于在Kotlin中，如何将主要构造函数中的属性的setter设为私有?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！