Working with container in android

code for radio button


package com.rad;

import android.app.Activity;

import android.os.Bundle;

import android.view.Gravity;

import android.widget.LinearLayout;

import android.widget.RadioGroup;

public class radioalling extends Activity implements RadioGroup.OnCheckedChangeListener {

    /** Called when the activity is first created. */

RadioGroup orientation;

RadioGroup gravity;

    @Override

    public void onCreate(Bundle icicle) {

        super.onCreate(icicle);

        setContentView(R.layout.main);

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

        orientation.setOnCheckedChangeListener(this);

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

        gravity.setOnCheckedChangeListener(this);

    }

@Override

public void onCheckedChanged(RadioGroup group, int checkedId) {

switch( checkedId ){

case R.id.horizontal:

orientation.setOrientation(LinearLayout.HORIZONTAL);

break;

case R.id.vertical:

orientation.setOrientation(LinearLayout.VERTICAL);

break;

case R.id.left:

gravity.setGravity(Gravity.LEFT);

break;

case R.id.right:

gravity.setGravity(Gravity.RIGHT);

break;

case R.id.center:

gravity.setGravity(Gravity.CENTER_HORIZONTAL);

break;

}

}

}