CODEWITHSUNDEEP
androidkotlinandroid-adapterbaseadapter
JaviOverflow
JaviOverflow

Reputation: 1480

Is this the right way to cast

What is the best way to cast an object to a certain type of object if it's not null (otherwise, a factory method is called). This is happening inside a BaseAdapter. What's the best way to do it?

val itemView = view as? ItemView ?: factory()

I'm getting the following warning in Android Studio

Unchecked cast: View? to ItemView

Upvotes: 1

Views: 88

Answers (1)

Krzysztof Atłasik
Krzysztof Atłasik

Reputation: 22595

You can handle it elegantly and functionally with pattern matching:

val itemView = when(view) {
    is ItemView -> view
    else -> factory()
}

Upvotes: 1

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