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# android
a
arekolek
08/18/2017, 3:45 PMWouldn’t this work?
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extras
.getParcelableArray(LocationPicker.INPUT_POLYGON)
.filterIsInstance<LatLng>()
.forEach(inputPolygon1::add)n
nickk
08/18/2017, 3:55 PMThis would work (I guess), but still not much better.
a
arekolek
08/18/2017, 3:57 PMwhat do you hate about it?
You could define an extension function like
inline fun <reified T> Bundle.getTypedArray(key: String) = getParcelableArray(key).filterIsInstance<T>()If there’s
addAllinputPolygon1.addAll(extras.getTypedArray<LatLng>(LocationPicker.INPUT_POLYGON))Define one, if there’s not.
Not sure if it can be less horrible than that, but I’m curious
n
nickk
08/18/2017, 4:04 PMOf course your code is a lot better.
But doesn’t it still feel like a workaround?
a
arekolek
08/18/2017, 4:12 PMI guess that depends on your intention. If you are sure those are all LatLng (you control the code that creates the parcelable array) you’d be better off with suppressing the unchecked warning (like here https://kotlinlang.slack.com/archives/C0B8M7BUY/p1503070876000405 ). If you want to make sure all items are LatLngs, it might be better to do something like
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inline fun <reified R> Iterable<*>.mapAsInstance() = map { it.apply { check(this is R) } as R }13 Views