调用Java从科特林

Question

我有一个Java功能的可变参数方法：

public static void initialize(@NonNull Activity activity, Settings... settings) {} 

我想从科特林称之为：

fun initialize(activity: Activity, vararg settings: settings) = JavaClass.initialize(activity, settings) 

不过，这并不编译，告诉我，有类型不匹配，Settings是必需的，但参数是kotlin.Array<out Settings>

我看到它试图与signture

与之匹敌

public static void initialize(@NonNull Activity activity, Settings settings) {} 

，但我想用

public static void initialize(@NonNull Activity activity, Settings[] settings) {} 

Answer 1

应使用以下语法：

fun initialize(activity: Activity, vararg settings: settings) = 
    JavaClass.initialize(activity, *settings) 

https://kotlinlang.org/docs/reference/java-interop.html#java-varargs