Android Programming Tutorials 33 : RadioGroup In Android

Create Android Application:

• File >> New >> Android Application
• Enter Project name: RadioGroupApp
• Package: com.ambilpursunil.newapp
• Keep other default selections, click Next until you reach Finish

                               

 1.Simply Copy and Past the Code which is display below in the  MainActivity.java 

package com.ambilpursunil.newapp;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.RadioGroup.OnCheckedChangeListener;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

            private RadioGroup radioGroup;

            private RadioButton sound, vibrate, slient;

            private Button chooseBtn;

            TextView tv;

            @Override

            protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

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

            radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override

            public void onCheckedChanged(RadioGroup group, int checkedId) {

            if (checkedId == R.id.slient) 

Toast.makeText(getApplicationContext(), "Slient Mode Is Activity",                                         Toast.LENGTH_SHORT).show();

            }

            if (checkedId == R.id.sound) {

Toast.makeText(getApplicationContext(), "Sound Mode Is Activity",                                        Toast.LENGTH_SHORT).show();

           }

           if (checkedId == R.id.vibrate) {

Toast.makeText(getApplicationContext(),"Vibrate Mode Is Activity",                                      Toast.LENGTH_SHORT).show();

           }

           }

           });

          sound = (RadioButton) findViewById(R.id.sound);

          slient = (RadioButton) findViewById(R.id.slient);

          vibrate = (RadioButton) findViewById(R.id.vibrate);

          tv = (TextView) findViewById(R.id.ChooseText);

          chooseBtn = (Button) findViewById(R.id.chooseBtn);

          chooseBtn.setOnClickListener(new OnClickListener() {

          @Override

          public void onClick(View v) {

 int selectedID = radioGroup.getCheckedRadioButtonId();

          if (selectedID == sound.getId()) {

          tv.setText("you choose sound");

           }

          if (selectedID == slient.getId()) {

          tv.setText("you choose slient");

          }

         if (selectedID == vibrate.getId()) {

         tv.setText("you choose vibrate");

          }

        }

     });

  }

}

 2.Simple Copy and Past the below code:  actvitiy_main.xml

<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:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <TextView

        android:id="@+id/ChooseText"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginLeft="2dp"

        android:text="@string/ChooseText"

        android:layout_marginTop="16dp"/>

   

    <RadioGroup

        android:id="@+id/myRadioGroup"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_below="@+id/ChooseText"

        android:checkedButton="@+id/sound"

        android:background="#E0E0E0">

        <RadioButton

            android:id="@+id/sound"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

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

       

        <RadioButton

            android:id="@+id/vibrate"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

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

       

        <RadioButton

            android:id="@+id/slient"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

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

       

    </RadioGroup>

    <Button

        android:id="@+id/chooseBtn"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/myRadioGroup"

        android:layout_marginTop="10dp"

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

</RelativeLayout>

3.Copy and past the code for manifest.xml

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

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

    package="com.ambilpursunil.newapp"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

        <intent-filter>

            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

4.Right click on the project and Run As-->Android Application

OutPut:

When our application launch you will see a group of radio buttons once you click on any of the radio button then you get a Toast message.

Please Send Your Comments To ambilpura.sunil@gmail.com

Stay Tune For Next Tutorial...  Use Font and colors For TextView Text In Android: