在java代码中使用kotlin库 [英] Using a kotlin library in java code
问题描述
我有一个kotlin库 FlowLayout lib as aar ,
I have a kotlin library FlowLayout lib as aar,
并希望在我的java代码(android)中使用它,但无法解析 kotlin.Pair
。
and want to use it in my java code (android) but can not to resolve kotlin.Pair
.
FlowLayoutManager layoutManager=new FlowLayoutManager(3, RecyclerView.HORIZONTAL, new FlowLayoutManager.Interface() {
@Override
public kotlin.Pair<Integer, Integer> getProportionalSizeForChild(int i) {
return null;
}
});
我试过 android.support.v4.util.Pair
但不兼容。如何在java代码中使用kotlin lib及其对象依赖?
I have tried android.support.v4.util.Pair
but is not compatible. How can I use a kotlin lib in java code with their object dependencies?
推荐答案
Class kotlin.Pair
属于标准库 org.jetbrains.kotlin:kotlin-stdlib:1.0.0
,因此您必须将此库作为依赖项。
Class kotlin.Pair
belongs to the standard library org.jetbrains.kotlin:kotlin-stdlib:1.0.0
, so you must have this library as a dependancy.
不建议在公共API中使用 Pair
。而不是那样,用2个属性创建你自己的数据类
并给它们一个比第一个
和<$ c更清晰的命名$ c> second 。
It is NOT recommended to use Pair
in public APIs. Rather than that, create your own data class
with 2 properties and give them a clearer naming than first
and second
.
Pair
的目的是作为临时服务器任何中间操作中的数据载体。如果您在API中使用它,则会失去清晰度。
The purpose of Pair
is to server as a temporary data carrier in any intermediate operation. If you use it in your API, you lose in clarity.
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