Spinner in from java android application — Java Android

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5S JAVA AND KOTLIN LEARNING

4 min readOct 12, 2020

This is how you can use an Android spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() inside Main Activity in Java Android Studio:

This example demonstrates the category of stadiums, you need to select a category from the category.

Android Spinner in JAVA ANDROID

Android Spinner is a view similar to the dropdown list which is used to select one option from the list of options. It provides an easy way to select one item from the list of items and it shows a dropdown list of all values when we click on it.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Create Empty Project

How to implement on Android Spinner Dropdown List in android programmatically.

Step 2 — “Add the following code to res/layout/activity_main.xml.“

I worked in simple relative layout method for only give basic example.

In the below code, we have declared Spinner as ”@+id/spinner”.
You can add a spinner to your layout with the Spinner object. You should usually do so in your XML layout with a <Spinner> element. For example:

RELATIVE LAYOUT FILE CODE IN 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.yourname.yourpackagename.MainActivity"
         android:padding="16dp"
         android:id="@+id/relLayout"
         android:orientation="vertical"><Spinner
          android:id="@+id/spinner"
            android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:layout_centerHorizontal="true"
           android:layout_below="@id/textView1"
           android:layout_marginStart="10dp"/>

       <TextView
           android:id="@+id/textView1"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_marginBottom="10dp"
         android:textStyle="bold"
           android:text="Choose a football club ⚽:"/>

<TextView
           android:id="@+id/textView2"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_below="@id/spinner"
           android:layout_marginTop="20dp"
           android:text="Football Team 🏟️: "
           android:textStyle="bold"/>

<TextView
           android:id="@+id/stadiumname"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_toRightOf="@id/textView2"
           android:layout_below="@id/spinner"
           android:layout_marginTop="20dp"
           android:layout_marginStart="5dp"/></RelativeLayout>

Step 3: MainActivity.java” java file − Add the following code to src/MainActivity.java

JAVA CODE IN MAIN ACTIVITY:

package com.yourname.yourpackagename;import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    Spinner spinner;
    TextView capital_textView;
    

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

                 capital_textView = (TextView) findViewById(R.id.stadiumname);

             findViewById(R.id.imageview);


                 //value to be shown in the spinner
                 String [] countries = {"Manchester United FC", "Liverpool FC", "Chelsea FC", "AC Milan & Inter Milan", "AFC Ajax"};
                 //array adapter used to bind values in the spinner
              ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, countries);

              spinner.setAdapter(adapter);
   

                 //on item select event handling
                 spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
               @Override
               public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                               switch(position){
                                     case 0:
                                        capital_textView.setText("OLD TRAFFORD");
                                    //capital_textView.setImageDrawable(R.drawable.yourimagename);
                                             break;
                                      case 1:
                                          capital_textView.setText("ANFIELD");
                                             break;
                                      case 2:
                                             capital_textView.setText("STAMFORD BRIDGE");
                                             break;
                                      case 3:
                                             capital_textView.setText("SAN SIRO");
                                             break;
                                      case 4:
                                             capital_textView.setText("JOHAN CRUYFF ARENA");
                                             break;
                                  }
                           }

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

                           }
        });

             }

}