How to initialize the Kotlin Object class with Value upon creation?

Question

I have this Java code

 public class CrimeLab {
 private static CrimeLab sCrimeLab;
 public static CrimeLab get(Context context) {
     if (sCrimeLab == null) {
     sCrimeLab = new CrimeLab(context);
  }
       return sCrimeLab;
  }
    private CrimeLab(Context context) {
   }
}

I am writing this Kotlin Code

object CrimeLab {

    }

Not sure how to pass "Context" while the object is created for CrimeLab.

Something _equivalent_ just takes everything that's static and puts it in a companion object. (You're probably better off redesigning things and using dependency injection, but that would require bigger changes.) — Louis Wasserman, Mar 12 '21 at 18:18
Does this answer your question? [Singleton with parameter in Kotlin](https://stackoverflow.com/questions/40398072/singleton-with-parameter-in-kotlin) — Henry Twist, Mar 12 '21 at 18:18

score 0 · Answer 1 · answered Mar 12 '21 at 20:23

You can't pass arguments as constructor params to object type in kotlin

Right, in kotlin object is singleton but, object has no constructor, but has init{...} method which calls when object is just created.

Option: Make optional function like: fun get(context: Context):CrimeLab { ... return this }

best solution is pass context to function which need it,

fun initialize(context: Context) {...} ...

and in your activity or wherever call like

CrimeLab.initialize(this)

NOTE: do not set context of view instance as a field in object type (singleton), avoid memory leaks.

How to initialize the Kotlin Object class with Value upon creation?

1 Answers1