Android RadioButton and Radio Group- JAVA Radio Buttons | Android Developers RadioButton & RadioGroup Tutorial With Example In Android

EXPERIMENT 12 - DIPLOMA

Hello !! So today you are going to learn Android Studio code/program for RadioButton and Radio group. In this we will make  own customized android application in java

I have attached a XML, Java and Manifest file as well. There are many other Android Studio, C++, etc related programs on our blog do check the as well !!

Android | How to add Radio Buttons in an Android Application?

XML code for RadioButton:-

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

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=".MainActivity"

    android:orientation="vertical">

    <TextView

        android:id="@+id/textView1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="30dp"

        android:gravity="center_horizontal"

        android:textSize="22dp"

        android:text="Single Radio Buttons" />

    <!--   Default RadioButtons  -->

    <RadioButton

        android:id="@+id/radioButton1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_gravity="center_horizontal"

        android:text="Radio Button 1"

        android:layout_marginTop="20dp"

        android:textSize="20dp" />

    <RadioButton

        android:id="@+id/radioButton2"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="Radio Button 2"

        android:layout_marginTop="10dp"

        android:textSize="20dp" />

    <View

        android:layout_width="fill_parent"

        android:layout_height="1dp"

        android:layout_marginTop="20dp"

        android:background="#B8B894" />

    <TextView

        android:id="@+id/textView2"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="30dp"

        android:gravity="center_horizontal"

        android:textSize="22dp"

        android:text="Radio button inside RadioGroup" />

    <!--   Customized RadioButtons  -->

    <RadioGroup

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/radioGroup">

        <RadioButton

            android:id="@+id/radioMale"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:text="  Male"

            android:layout_marginTop="10dp"

            android:checked="false"

            android:textSize="20dp" />

        <RadioButton

             android:id="@+id/radioFemale"

            android:layout_width="fill_parent"

             android:layout_height="wrap_content"

             android:text="   Female"

            android:layout_marginTop="20dp"

            android:checked="false"

            android:textSize="20dp" />

    </RadioGroup>

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Show Selected"

        android:id="@+id/button"

        android:onClick="onclickbuttonMethod"

        android:layout_gravity="center_horizontal" />

</LinearLayout>

JAVA code for RADIO Button :-

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    Button button;

    RadioButton genderradioButton;

    RadioGroup radioGroup;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main)

radioGroup=(RadioGroup)findViewById(R.id.radioGroup);

    }

    public void onclickbuttonMethod(View v){

        int selectedId = radioGroup.getCheckedRadioButtonId();

        genderradioButton = (RadioButton) findViewById(selectedId);

  if(selectedId==-1){

            Toast.makeText(MainActivity.this,"Nothing selected", Toast.LENGTH_SHORT).show();

        }

        else{

Toast.makeText(MainActivity.this,genderradioButton.getText(), Toast.LENGTH_SHORT).show();

        }

    }

}

 Android Radio button source code

Programs:-

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