How do you initialize an empty ByteArray in Kotlin? Whenever I try to do this:
val asdfasdf : ByteArray
I get told that I need to initialize asdfasdf when I try to use it later here:
mVisualizer.getWaveForm(asdfasdf)
Variable 'asdfasdf' must be initialized
The easiest way to make a ByteArray in Kotlin in my opinion is to use byteArrayOf(). It works for an empty ByteArray, as well as one which you already know the contents of.
val nonEmpty = byteArrayOf(0x01, 0x02, 0x03)
var empty = byteArrayOf()
empty += nonEmpty
Your val asdfasdf : ByteArray is just declaration of immutable that needs to be initialized. If you know size in advance, you can init it like this val asdfasdf : ByteArray = ByteArray(10) however you probably need something like this val asdfasdf = arrayListOf<Byte>() to be able add items into it dynamically.