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Android Spinner

Spinner:

Spinner is a widget that consists of a dropdown list and list of items by which the user can select an option out of that list.

It is frequently selected when there are more than two possible items which may be chosen and the client can pick one.

                                    
                                            <?xml version="1.0" encoding="utf-8"?>
<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"
        tools:context=".SpinnerExample"
        android:orientation="vertical"
        android:padding="16dp"
        android:gravity="center">
   
       <Spinner
          android:id="@+id/spinner1"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          />
   
</LinearLayout>

                                    
                                            package com.example.widgets;
    
import androidx.appcompat.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 SpinnerExample extends AppCompatActivity {
   
    Spinner spinner;
    String[] bankNames={"SBI","BOI","PNB","HDFC","OBC"};
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_spinner_example);
   
        spinner=(Spinner)findViewById(R.id.spinner1);
   
        ArrayAdapter arrayAdapter = new ArrayAdapter(getApplicationContext(),android.R.layout.simple_spinner_item,bankNames);
        arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(arrayAdapter);
   
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView parent, View view, int position, long id) {
   
                Toast.makeText(getApplicationContext(), bankNames[position], Toast.LENGTH_LONG).show();
            }
   
            @Override
            public void onNothingSelected(AdapterView parent) {
   
            }
        });
   
    }
}

                                    
                                        package com.example.widgets

import android.os.Bundle
import android.view.View
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.Spinner
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity

class SpinnerExample : AppCompatActivity() {

    private lateinit var spinner: Spinner
    private val bankNames = arrayOf("SBI", "BOI", "PNB", "HDFC", "OBC")

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_spinner_example)

        spinner = findViewById(R.id.spinner1)

        val arrayAdapter = ArrayAdapter(applicationContext, android.R.layout.simple_spinner_item, bankNames)
        arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
        spinner.adapter = arrayAdapter

        spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
                Toast.makeText(applicationContext, bankNames[position], Toast.LENGTH_LONG).show()
            }

            override fun onNothingSelected(parent: AdapterView<*>?) {
                // Handle the case where nothing is selected (optional)
            }
        }
    }
}

Output