android studio valuesda xml dosyasından spinnere alma

once valuesa sağ tıkla ve new xml value adınıda gunler koy
içinde :
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="gunler">
        <item>Pazartesi</item>
        <item>Salı</item>
        <item>Çarşamba</item>
        <item>Perşembe</item>
        <item>Cuma</item>
        <item>Cumartesi</item>
        <item>Pazar</item>
    </string-array>

</resources>

layout: activity_maine 1 adet spinner1 isminde spiner yarat

. java : MainActivity

package com.abysamltd.myapplication;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

import android.widget.Toast;

public class Main_Activity extends AppCompatActivity {

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //Spinner spinner = (Spinner) findViewById(R.id.spinner);

        android.widget.Spinner spinner = (android.widget.Spinner) findViewById(R.id.spinner1);

        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(

                this, R.array.gunler, android.R.layout.simple_spinner_item);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setAdapter(adapter);

        spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());

    }

    public class MyOnItemSelectedListener implements AdapterView.OnItemSelectedListener {

        public void onItemSelected(AdapterView<?> parent,

                                   View view, int pos, long id) {

            Toast.makeText(parent.getContext(), "Seçilen gün " +

                    parent.getItemAtPosition(pos).toString(), Toast.LENGTH_LONG).show();

        }

        public void onNothingSelected(AdapterView parent) {

            // Do nothing.

        }

    }

}