Alternative to HIGHLY FLAWED SPINNER CLASS in Android

You can create a custom spinner using ListPopupWindow to a TextView means when a TextView is clicked a ListPopupWindow open like spinner dropdown list and you can choose a element. If you need I will help you in that.

ListPopupWindow numberList;
TextView spDays;
ArrayList<Map<String, String>>() listTrans;

in oncreate() spDays.setonclicklistner(this);spDays.setText("Select");
setNumberListSpinnerView();

in onclick(){
when spDays clicked :- numberList.show();
}


void setNumberListSpinnerView() {

numberList= new ListPopupWindow(this);
numberList.setAnchorView(spDays);

numberList.setOnItemClickListener((new AdapterView.OnItemClickListener() {
    @Override
    getListItem();
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Map map = listTrans.get(position);
        spDays.setText(map.get("circle_name").toString());
        circle_name = map.get("circle_name") + "";
        circle_id = map.get("circle_id").toString();
        circleList.dismiss();
        Log.d("Circle id:", circle_id + "");
        getRetails();

    }
}));
}


void getListItem(){
String[] numbers = {"1","2","3","4","5","6"};
listTrans = new ArrayList<Map<String, String>>();
LinkedHashMap<String, String> tran = new LinkedHashMap<String, String>();
for (String number : numbers) {
    tran.put("numbers", number);
    listTrans.add(tran);
}
SimpleAdapter adapter = new SimpleAdapter(AddRetailSurvey.this, listTrans,
        android.R.layout.simple_spinner_dropdown_item,
        new String[]{"numbers"},
        new int[]{android.R.id.text1});
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
numberList.setAdapter(adapter);
}

Check this code and modify it according to your requirement. If you found any problem I am here to help you. :)

Putting a simplified kotlin version of the accepted answer here, which may help. At first make a ListPopupWindow member in your Activity or other class-

private val listPopupView by lazy { ListPopupWindow(this) }

Then initialize it in the onCreate() method-

val dataList = arrayOf("item1", "item2", "item3", "item4")
listPopupView.setAdapter(ArrayAdapter(this, android.R.layout.simple_list_item_1, dataList))
listPopupView.setOnItemClickListener { _, _, position, _ ->
    selectionTextView.text = dataList[position]
    listPopupView.dismiss()
    // do other things on selection
}
listPopupView.anchorView = selectionTextView
selectionTextView.setOnClickListener { listPopupView.show() }

And you are done!