Radio Button Arrangement in row and column

  

Step1

è                                 Create new android application “CustomRadioArrangement “

è                                 Give Activity name as “RadioButtonDemo”

                  è Set Layout name as “main”

Step2

                  è Copy below code and past in main.xml file

<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=".RadioButtonDemo" >

    <RadioGroup

        android:id="@+id/radiogroup"

        android:orientation="vertical"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"/>

  

</RelativeLayout>

Step3

è Copy below code and past in RadioButtonDemo.java file

package com.example.customradioarrangement;

import android.os.Bundle;

import android.app.Activity;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.LinearLayout;

import android.widget.RadioButton;

public class RadioButtonDemo extends Activity {

     

      //Globally declared

      int oldId = 0;

      int newId = 0;

      RadioButton radio1;

     

      @Override

      protected void onCreate(Bundle savedInstanceState)

      {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);

           

            //This count variable is taken for setting a unique id to radio button

            int count = 0;

           

            //Below for loop prepares 5 rows for radio button

            for(int row=0; row < 5; row++)

        {

            //Declare a dynamic Linear Layout, with Horizontal Orientation

                  LinearLayout ll = new LinearLayout(this);

            ll.setOrientation(LinearLayout.HORIZONTAL);

           

           //Below for loop prepares 2 column for each rows

            for(int i = 0; i < 2; i++)

            {

                  //Below code is for creating Dynamic radio button and set it's attributes like id,text and so on

                  RadioButton rdbtn = new RadioButton(this);

                rdbtn.setId(count);//hear we set count as id

                rdbtn.setText("test " + rdbtn.getId());

                rdbtn.setTag(count);

                rdbtn.setOnClickListener(radio_listener_for_all_radio);

                ll.addView(rdbtn);//hear radio button is added to linear layout

               

                count ++;

            }

            // hear Linear layout is add to radio group which define in main.xml file

            ((ViewGroup)findViewById(R.id.radiogroup)).addView(ll);

            count ++;

            }

      }

      //onclick listener for radio button

      OnClickListener radio_listener_for_all_radio = new OnClickListener (){

             public void onClick(View v)

             {

                   RadioButton rb = (RadioButton) v;

             oldId = newId;

             //Radio button tag value is set as newId

                   newId = (Integer) rb.getTag();

                   

                   //if user click same radio button again and again then oldId and newId becomes same

                   // in such a case we have to keep radio button selected and set oldId to 0

                   if( oldId == newId )

                   {

                         radio1 = (RadioButton) findViewById(newId);

                         radio1.setChecked(true);

                         oldId = 0;

                   }

                   else

                   {

                         //oldest radio button is unchecked through oldId

                         radio1 = (RadioButton) findViewById(oldId);

                         radio1.setChecked(false);

                   }

             }

            };

}

Finally outpour screen is: