I have declared ArrayList like,
var otherSeriesList = ArrayList<String>()
And trying to get data from resource by following,
otherSeriesList = ArrayList<String>(Arrays.asList(resources.getStringArray(R.array.get_other_series)))
But I am getting error. Please see the image-
How should I create ArrayList from resource string-array?
Simple do like this-
otherSeriesList = ArrayList<String>(Arrays.asList(*resources.getStringArray(R.array.get_other_series)))
* will pass the Array as vararg
Arrays.asList callJust use ArrayList(resources.getStringArray( ... ).toMutableList()) instead.
If you don't need to use ArrayList exactly in your code, then you can change type of property to MutableList<String> and call resources.getStringArray( ... ).toMutableList()
Or you can use spread operator on your array and create ArrayList via call arrayListOf(*context.resources.getStringArray())
mutableListOf is also an optionMutableList. And even in such case better and easier to call toMutableList() instead of combining mutableListOf with spread operatorYou can to declare it as MutableList(). Also cast that StringArray to String before that.
var otherSeriesList: MutableList<String> = Arrays.asList(resources.getStringArray(R.array.get_other_series).toString())
Or you can do it like,
var otherSeriesList: MutableList<String> = resources.getStringArray(R.array.get_other_series).toMutableList()
you can create an extension function
private fun Array<String>.getAsArrayList(): ArrayList<String> {
val list = ArrayList<String>()
this.forEach { it->list.add(it) }
return list
}
and call it like this
val list = resources.getStringArray(R.array.array).getAsArrayList()
If you have an array, simply call toList() on it.
val arr = arrayOf(1, 2)
val list = arr.toList()
Alternatively, there’s also a toMutableList() extension available.
Note that you can declare lists in Kotlin like this:
val list = listOf<String>(1, 2)
To be sure to get an ArrayList, use arrayListOf().
fooyou can dootherSeriesList = arrayListOf(*foo)(note the spread operator*which takes care of passing the array as a vararg).