Android radion button,Android AbsoluteLayout

For android radion button you need to create a RadioGroup. From each group
maximum one item can be selected.
Here you also find how get selected radio button.
In this example i used AbsoluteLayout for better positioning.


//main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical" android:layout_width="fill_parent"
 android:layout_height="fill_parent">

 <TextView android:id="@+id/myTextViev" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:text="Choose Dictionary:"
  android:layout_x="20px" android:layout_y="250px" />

 <RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="horizontal" android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <RadioButton android:id="@+id/radio1"
   android:layout_width="wrap_content" android:layout_height="wrap_content"
   android:text="Rock" />

  <RadioButton android:id="@+id/radio2"
   android:layout_width="wrap_content" android:layout_height="wrap_content"
   android:text="Scissors" />

  <RadioButton android:id="@+id/radio3"
   android:layout_width="wrap_content" android:layout_height="wrap_content"
   android:text="Paper" />
 </RadioGroup>
 <Button android:id="@+id/myButton" android:layout_width="100px"
  android:layout_height="50px" android:text="Submit" android:layout_x="5px"
  android:layout_y="60px" />

</AbsoluteLayout>

//AndroidRadioButton.java

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.TextView;

public class AndroidRadioButton extends Activity implements OnClickListener{
    
 TextView tv;
 Button btn;
 /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        btn = (Button) findViewById(R.id.myButton);
        btn.setOnClickListener(this);
        
        tv = (TextView) findViewById(R.id.myTextViev);
        tv.setText("This is sample text");
        
        
    }

 @Override
 public void onClick(View v) {
  // TODO Auto-generated method stub
  RadioButton ra=(RadioButton)findViewById(R.id.radio1);
  RadioButton rb=(RadioButton)findViewById(R.id.radio2);
  RadioButton rc=(RadioButton)findViewById(R.id.radio3);
  if (v.getId() == R.id.myButton) {
   if(ra.isChecked()){
    tv.setText("Rock selected");
   }
   if(rb.isChecked()){
    tv.setText("Scissors selected");
   }
   if(rc.isChecked()){
    tv.setText("Paper selected");
   }
  }
 }
}

output:

select any item of radio button and then click submit button (let i select Scissors radio button),
now output will be