Android Spinner Example | Android Tutorial | Spinner Example

Android Spinner Example

Android Spinner resembles the combox box of AWT or Swing. It very well may be utilized to show the different choices to the client in which just a single thing can be chosen by the client.

Android spinner resembles the drop down menu with different qualities from which the end client can choose just a single esteem.

Android spinner is related with AdapterView. So you have to utilize one of the connector classes with spinner.

Android Spinner class is the subclass of AsbSpinner class.

Android Spinner Example

In this model, we are going to show the nation list. You have to utilize ArrayAdapter class to store the nation list.

We should see the straightforward case of spinner in android.

Activity_main.xml

Drag the Spinner from the pallete, now the activity_main.xml file will like this:

File :- Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>  <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"      xmlns:app="http://schemas.android.com/apk/res-auto"      xmlns:tools="http://schemas.android.com/tools"      android:layout_width="match_parent"      android:layout_height="match_parent"      tools:context="example.javatpoint.com.spinner.MainActivity">        <Spinner          android:id="@+id/spinner"          android:layout_width="149dp"          android:layout_height="40dp"          android:layout_marginBottom="8dp"          android:layout_marginEnd="8dp"          android:layout_marginStart="8dp"          android:layout_marginTop="8dp"          app:layout_constraintBottom_toBottomOf="parent"          app:layout_constraintEnd_toEndOf="parent"          app:layout_constraintHorizontal_bias="0.502"          app:layout_constraintStart_toStartOf="parent"          app:layout_constraintTop_toTopOf="parent"          app:layout_constraintVertical_bias="0.498" />    </android.support.constraint.ConstraintLayout>

Activity Class

We should compose the code to show thing on the spinner and perform occasion dealing with.

File :- MainActivity.java

package example.javatpoint.com.spinner;    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.Toast;    public class MainActivity extends AppCompatActivity implements          AdapterView.OnItemSelectedListener {      String[] country = { "India", "USA", "China", "Japan", "Other"};        @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);         //Getting the instance of Spinner and applying OnItemSelectedListener on it          Spinner spin = (Spinner) findViewById(R.id.spinner);          spin.setOnItemSelectedListener(this);            //Creating the ArrayAdapter instance having the country list          ArrayAdapter aa = new ArrayAdapter(this,android.R.layout.simple_spinner_item,country);          aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);          //Setting the ArrayAdapter data on the Spinner          spin.setAdapter(aa);        }        //Performing action onItemSelected and onNothing selected      @Override      public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long id) {          Toast.makeText(getApplicationContext(),country[position] , Toast.LENGTH_LONG).show();      }      @Override      public void onNothingSelected(AdapterView<?> arg0) {          // TODO Auto-generated method stub      }  }

OutPut :-