How to get Spinner Value in android?


This example demonstrates how do I get spinner value in android.

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

Step 2 − Add the following code to res/layout/activity_main.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"
   android:padding="16sp"
   tools:context=".MainActivity">

   <Spinner
      android:id="@+id/spinner"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerInParent="true">
   </Spinner>

</RelativeLayout>

Step 3 – Open res/values/strings.xml and add the following code

<resources>
   <string name="app_name">Sample</string>

   <string-array name="birds">
      <item>crane</item>
      <item>Cuckoo</item>
      <item>Pigeon</item>
      <item>Pigeon</item>
      <item>Eagle</item>
      <item>Owl</item>
      <item>Vulture</item>
      <item>WoodPecker</item>
   </string-array>

</resources>

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

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 {

   Spinner spinner;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      spinner = findViewById(R.id.spinner);
      ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.birds,
      android.R.layout.simple_spinner_item);
      adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
      spinner.setAdapter(adapter);
      spinner.setOnItemSelectedListener(this);
   }
   @Override
   public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
      String text = parent.getItemAtPosition(position).toString();
      Toast.makeText(parent.getContext(), text, Toast.LENGTH_SHORT).show();
   }
   @Override
   public void onNothingSelected(AdapterView<?> parent) { }
}

Step 4 - Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="app.com.sample">

   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:supportsRtl="true"
      android:theme="@style/AppTheme">
      <activity android:name=".MainActivity">
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run  Icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen –

raja
Published on 07-Aug-2019 12:50:54
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