Spinner Example in Android

In this example, we will discuss and demonstrates how to implement spinner component in your application.

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="14dp" />

</RelativeLayout>

MainActivity.java

package com.example.spinner_example;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;

public class MainActivity extends Activity implements OnItemSelectedListener {

    private Spinner mSpinner;
    private ArrayAdapter<CharSequence> mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mSpinner = (Spinner) findViewById(R.id.spinner);

        mAdapter = ArrayAdapter.createFromResource(this, R.array.names,
                android.R.layout.simple_spinner_item);

        mAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        mSpinner.setAdapter(mAdapter);
        mSpinner.setOnItemSelectedListener(this);
    }

    @Override
    public void onItemSelected(AdapterView<?> spinnerAdapView, View view,
            int position, long id) {

        Toast.makeText(
                MainActivity.this,
                "You have Selected "
                        + spinnerAdapView.getSelectedItem().toString(),
                Toast.LENGTH_LONG).show();

    }

    @Override
    public void onNothingSelected(AdapterView<?> arg0) {

    }
}

Output :

 

Source Code : Download this Example Here