Radio Group In Android

This class is used to create a multiple-exclusion scope for a set of radio buttons. Checking one radio button that belongs to a radio group unchecks any previously checked radio button within the same group.

Intially, all of the radio buttons are unchecked. While it is not possible to uncheck a particular radio button, the radio group can be cleared to remove the checked state.

Radio Buttons

Radio buttons allow the user to select one option from a set. You should use radio buttons for optional sets that are mutually exclusive if you think that the user needs to see all available options side-by-side. If it's not necessary to show all options side-by-side, use a spinner instead.

Strings.xml

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

<resources>

    <string name="app_name">RadioGroup</string>

    <string name="hello_world">Radio Group Example Demo</string>

    <string name="text1">Please Select Gender</string>

</resources>

Activity_Radio.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context="${relativePackage}.${activityClass}" >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:text="@string/hello_world" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/text1"

        android:textAppearance="?android:attr/textAppearanceLarge" />

    

    <RadioGroup 

        android:id="@+id/rg1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:orientation="horizontal">

        

        

        

        <RadioButton 

            android:id="@+id/male"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Male"

            android:textSize="20sp"

            android:textColor="#000"

            android:gravity="left"/>

        

           <RadioButton 

            android:id="@+id/female"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Female"

            android:textSize="20sp"

            android:textColor="#000"

            android:gravity="left"/>

    </RadioGroup>tivit

</LinearLayout>

RadioActivity.Java

package com.example.radiogroup;

import android.app.Activity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.RadioGroup.OnCheckedChangeListener;

import android.widget.Toast;

public class RadioActivity extends Activity {

RadioGroup radio;

RadioButton rb;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_radio);

        

        radio=(RadioGroup) findViewById(R.id.rg1);

        

        radio.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override

public void onCheckedChanged(RadioGroup group, int checkedId) {

// TODO Auto-generated method stub

rb=(RadioButton) findViewById(group.getCheckedRadioButtonId());

String value=rb.getText().toString();

Toast.makeText(getApplicationContext(), "Selected Radio Button is"+value, Toast.LENGTH_LONG).show();

}

});

    }

}

Output:

Down Load zip

https://drive.google.com/drive/folders/0B5QdrrcXdvP-c3RuRUVkLURVV3c