Simple Spinner

Introduction 

An Android Spinner is used for quick way to selecting values to fill data from the list. A spinner by default shows its currently selected value. When we click in spinner, a drop down menu will show and provide a facility to select any value from it. After selecting the value, that value will be set in selected in the spinner.

demo

Using the code

activity_main.xml:

<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"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <Spinner

        android:id="@+id/spinner1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginTop="139dp" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/spinner1"

        android:layout_alignParentTop="true"

        android:layout_marginLeft="79dp"

        android:layout_marginTop="70dp"

        android:text="Select Country" />

    

</RelativeLayout>

MainActivity.java:

package com.example.spinner1;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.Spinner;

public class MainActivity extends Activity {

String[] country={"india","pakistan","srilanka"};

Spinner sp1,sp2;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

sp1=(Spinner)findViewById(R.id.spinner1);

ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,country);

sp1.setAdapter(adapter);

}

}

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