android studio spinner change selected item code example

Example 1: how to set list data to android spinner

// setting branch data in manually and load to spBranchName
        List<String> branchList = new ArrayList<>();
        branchList.add("CHITTAGONG");
        branchList.add("DHAKA");

        ArrayAdapter<String> branchListAdapter = new ArrayAdapter<>(getActivity(),
                android.R.layout.simple_spinner_item, branchList);
        branchListAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spBranchName.setAdapter(branchListAdapter);

Example 2: how to set current item for spinner android

val b: List<Int> = a.mapIndexed { i, b -> if (b) i else null }.filterNotNull().toList()

spinnerObject.setSelection(b.get(0))