<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >
    
<Spinner
    android:id="@+id/spinner"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    />

<TextView
    android:id="@+id/text"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" />

<Button
    android:id="@+id/button_random"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/button_random" />
    
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Code For Food Test</string>
    <string name="menu_settings">Settings</string>
    <string name="button_random">Choose randomly</string>
    <string-array name="choices_array">
        <item>One</item>
        <item>Two</item>
        <item>Three</item>
        <item>Four</item>
        <item>Five</item>
        <item>Seven</item>
        <item>Eight</item>
        <item>Nine</item>
        <item>Ten</item>
    </string-array>

</resources>

public class MainActivity extends Activity implements OnItemSelectedListener{

private TextView text;
private Spinner spinner;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

spinner = (Spinner)findViewById(R.id.spinner);
text = (TextView)findViewById(R.id.text);

String[] choices = getResources().getStringArray(R.array.choices_array);

ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, choices);
arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(arrayAdapter);
spinner.setOnItemSelectedListener(this);

Button button = (Button)findViewById(R.id.button_random);
button.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
spinner.setSelection((int)Math.round(Math.random()*8));
}
});

}

public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
    text.setText("The selected item is " + parent.getItemAtPosition(pos).toString());
    }
    
public void onNothingSelected(AdapterView<?> parent) {
    text.setText("Nothing is selected!");
    }

package com.kircode.codeforfood_test;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;

public class MainActivity extends Activity implements OnItemSelectedListener{

private TextView text;
private Spinner spinner;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

spinner = (Spinner)findViewById(R.id.spinner);
text = (TextView)findViewById(R.id.text);

String[] choices = getResources().getStringArray(R.array.choices_array);

ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, choices);
arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(arrayAdapter);
spinner.setOnItemSelectedListener(this);

Button button = (Button)findViewById(R.id.button_random);
button.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
spinner.setSelection((int)Math.round(Math.random()*8));
}
});

}

public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
    text.setText("The selected item is " + parent.getItemAtPosition(pos).toString());
    }
    
public void onNothingSelected(AdapterView<?> parent) {
    text.setText("Nothing is selected!");
    }


@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}