My class NotesListAdapter has a member variable context but when I try to call this member variable in the below function, I get an unresolved reference error. I’m new to Kotlin, so I’m confused about what is going on here.
class NotesListAdapter(context:Context,list:List<Notes>,listener:NotesClickListener) : RecyclerView.Adapter<NotesViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NotesViewHolder {
return NotesViewHolder(LayoutInflater.from(context).inflate(R.layout.notes_list,parent,false))
}
}
>Solution :
When you pass the variable in as (context: Context you have created a local variable that is only available during initialization, not a class member. For example, in this case s is not available to use in printmys() but it is available in init or in inline declarations:
class TestClass(s: String) {
fun printmys() {
println(s) // not valid
}
init {
println(s) // valid
}
private val mys = s // also valid
}
To declare it as a private class member so you can use it in your functions, add a declaration like private val or var before it like this:
class NotesListAdapter(private val context: Context
Or, using the example above
class TestClass(private val s: String) {
fun printmys() {
println(s) // valid
}
}