add hint in Spinner, after clicking spinner hint not show in spinner as a item (Hint in Spinner) android studio java

 

1. first create Adapter which help to add hint in yout Spinner item list

public class HintAdapter extends ArrayAdapter<String> {


    public HintAdapter(@NonNull Context context, int resource) {
        super(context, resource);
    }

    public HintAdapter(@NonNull Context context, int resource, int textViewResourceId) {
        super(context, resource, textViewResourceId);
    }

    public HintAdapter(@NonNull Context context, int resource, @NonNull String[] objects) {
        super(context, resource, objects);
    }

    public HintAdapter(@NonNull Context context, int resource, int textViewResourceId, @NonNull String[] objects) {
        super(context, resource, textViewResourceId, objects);
    }

    public HintAdapter(@NonNull Context context, int resource, @NonNull List<String> objects) {
        super(context, resource, objects);
    }

    public HintAdapter(@NonNull Context context, int resource, int textViewResourceId, @NonNull List<String> objects) {
        super(context, resource, textViewResourceId, objects);
    }

    @Override
    public int getCount() {
        // don't display last item. It is used as hint.
        int count = super.getCount();
        return count > 0 ? count - 1 : count;
    }
}

2...create a Array in which you Store your Spinner items

ArrayList<String> SpinneritemArray = new ArrayList<String>();
  SpinneritemArray .add("item 1");
   SpinneritemArray .add("item 2");
    SpinneritemArray .add("item 3");
	 SpinneritemArray .add("item 4");
	  SpinneritemArray .add("item 5");
	   SpinneritemArray .add("Here write your hint");
	   
	    HintAdapter hintAdapter=new HintAdapter(MainActivity.this,android.R.layout.simple_spinner_dropdown_item,SpinneritemArray);
                yourSpinner.setAdapter(hintAdapter); 
                
                ///it show last item of Spinner as a hint but not show in Spinner as a item
                yourSpinner.setSelection(hintAdapter.getCount());
                
                ///selected item of Spiner we can assign in String variable like that, also.
               String spinnerSelectedItem= yourSpinner.getSelectedItem().toString();