是否可以通过覆盖在 getview 适配器 function 中添加变量？

Question

How to refer to adapter in the getview (of a listview) with this google syntax:

fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
    return (convertView ?: layoutInflater.inflate(R.layout.my_layout, parent, false)).apply {
        // … bind content from position to convertView …
        //personal comment : "this" does not refer to adapter
    }
}

Indeed, after the.apply, I have to call adapter in order to make an adapter.notifyDataSetChanged() .

With a "classic syntax", adapter could be called thanks to "this", that is impossible with google syntax.

"Classic syntax"

fun getView(position: Int, convertView: View?, parent: ViewGroup): View {

....

//"this" (refers to adapter)

return convertView
}

So is it possible to overriding the getview function to add variable in the signature? Else, what is the solution of my problem?

Answer 1

You should use .also {... } instead of .apply {... }

Answer 2

If I got your question right, you can:

Write your getView(...) function same as adapters, with additional parameter

call your getView() in adapter overridden getView(...) pass your argument what you want.