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# announcements

[Paul Woitaschek]

-.kt

-.kt

[Luke]

by lazy { RenderScript.create(context.applicationContext) }

[Luke]

see more here: https://kotlinlang.org/docs/reference/delegated-properties.html#lazy

[stephan_marshay]

How would you pass in the Context parameter using by lazy??

[Paul Woitaschek]

That's what my question is referring to

[Luke]

Sorry. Hadn't notice. Well... There is always passing context in constructor, or using dependency injection to inject the application context?

[Paul Woitaschek]

There is no constructor, it's a top level function

[stephan_marshay]

What do you mean there's no constructor? You're initializing a variable in a class, therefore there is a constructor for that class, ain't it?

[Luke]

In Kotlin, you have package-functions which don't require being wrapped in a class

[stephan_marshay]

but private var rs: RenderScript? = null is a member of a class, I can't imagine it being a top level variable...

[Andreas Sinz]

@Paul Woitaschek rs is a top-level property?

[Luke]

There are essentially the same, they are supported as well. As for the initial question, my thoughts are that maybe dependency injection works. Otherwise, I believe it requires a change of architecture. Either creating a singleton holding its reference, or creating a class extending RenderScript

[Paul Woitaschek]

It's a top level property, yes

[Andreas Sinz]

it feels like the job of a DI framework (you are re-implementing singleton with initialization), apart from that IMO there is no better way to initialize that property

[gildor]

DI is the answer, all other solutions (like Singleton with param) are smell