如何在Kotlin (android)中使用全局数组var

object GlobalArray {
    val myArray = arrayOf("item1", "item2", "item3")
}

val item = GlobalArray.myArray[0]

class MyClass {
    companion object {
        val myArray = arrayOf("item1", "item2", "item3")
    }
}

val item = MyClass.myArray[0]

class MyApplication : Application() {
    companion object {
        lateinit var myArray: Array<String>
            private set
    }

    override fun onCreate() {
        super.onCreate()
        myArray = arrayOf("item1", "item2", "item3")
    }
}

<application
    android:name=".MyApplication"
    ... >
    ...
</application>

val item = MyApplication.myArray[0]

class MyViewModel : ViewModel() {
    val myArray = MutableLiveData(arrayOf("item1", "item2", "item3"))
}

val viewModel = ViewModelProvider(this).get(MyViewModel::class.java)
val item = viewModel.myArray.value?.get(0)

lateinit var myArray: Array<String>

override fun onCreate() {
    super.onCreate()
    myArray = arrayOf("item1", "item2", "item3")
}

val myArray = AtomicReference(arrayOf("item1", "item2", "item3"))

fun updateArray(newArray: Array<String>) {
    myArray.set(newArray)
}