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Radio button Sample Program

Simple radio button example 


Radio buttons are two-state button which allow the user to select one options from a group. If you have more than one radio button, then use radio group, so that when one radio button is selected, all others are automatically deselected.
In this example, I’ll show a simple example of a radio button


RadiobuttonExampleActivity.java
package com.example;

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.Toast;

public class RadiobuttonExampleActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button button=(Button)findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {
                 
                  public void onClick(View v) {
                        RadioGroup radioGroup=(RadioGroup)findViewById(R.id.radioGroup1);
                    int data=radioGroup.getCheckedRadioButtonId();
                    RadioButton radioButton=(RadioButton)findViewById(data);
                    Toast.makeText(getApplicationContext(), radioButton.getText(), Toast.LENGTH_LONG).show();
                  }
            });
       
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
    <RadioGroup
android:id="@+id/radioGroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
    <RadioButton
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:id="@+id/radio0"
    android:text="Male"
    android:checked="true">
    </RadioButton>
    <RadioButton
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:id="@+id/radio1"
    android:text="Female">
    </RadioButton>

</RadioGroup>
    <Button
    android:text="Button"
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
    </Button>
</LinearLayout>
 See more
Custom radio button
Checkbox 
Custom checkbox
Toggle button
Autocomplete textview
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