Static way to get 'Context' in Android?

Question

Is there a way to get the current Context instance inside a static method?

I\'m looking for that way because I hate saving the \'Context\' instance eac

Answer 1

in Kotlin, putting Context/App Context in companion object still produce warning Do not place Android context classes in static fields; this is a memory leak (and also breaks Instant Run)

or if you use something like this:

    companion object {
        lateinit var instance: MyApp
    }

It's simply fooling the lint to not discover the memory leak, the App instance still can produce memory leak, since Application class and its descendant is a Context.

Alternatively, you can use functional interface or Functional properties to help you get your app context.

Simply create an object class:

object CoreHelper {
    lateinit var contextGetter: () -> Context
}

or you could use it more safely using nullable type:

object CoreHelper {
    var contextGetter: (() -> Context)? = null
}

and in your App class add this line:

class MyApp: Application() {

    override fun onCreate() {
        super.onCreate()
        CoreHelper.contextGetter = {
            this
        }
    }
}

and in your manifest declare the app name to . MyApp

When you wanna get the context simply call:

CoreHelper.contextGetter()

// or if you use the nullable version
CoreHelper.contextGetter?.invoke()

Hope it will help.