Spinner Example

Screenshots :

activity_main.xml :

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

<RelativeLayout 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"

    tools:context="com.chantisandroid.spinnerexample.MainActivity">

    <Spinner

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/spinner"

        android:layout_above="@+id/textView"

        android:layout_centerHorizontal="true"

        android:layout_marginBottom="82dp" />

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:textAppearance="?android:attr/textAppearanceLarge"

        android:text="Large Text"

        android:id="@+id/textView"

        android:layout_centerVertical="true"

        android:layout_centerHorizontal="true" />

</RelativeLayout>

MainActivity.java :

package com.chantisandroid.spinnerexample;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {

    Spinner spinner;

    TextView textView;

    String[] NAMES = { "Android","Java","Oracle",".Net","Sap","Php" };

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        textView = (TextView)findViewById(R.id.textView);

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

        spinner.setOnItemSelectedListener(this);

        ArrayAdapter aa = new ArrayAdapter(this,android.R.layout.simple_spinner_item,NAMES);

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

        spinner.setAdapter(aa);

    }

    @Override

    public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {

        String str = spinner.getSelectedItem().toString();

        textView.setText(str);

    }

    @Override

    public void onNothingSelected(AdapterView<?> adapterView) {

    }

}